get-deno/cli.compact.js

#!/usr/bin/env node
'use strict';

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }

var util = _interopDefault(require('util'));
var fs = _interopDefault(require('fs'));
var path = _interopDefault(require('path'));
var tty = _interopDefault(require('tty'));
var os = _interopDefault(require('os'));
var readableStream = _interopDefault(require('stream'));
var zlib = _interopDefault(require('zlib'));
var stream = _interopDefault(require('stream'));
var events = _interopDefault(require('events'));
var buffer = _interopDefault(require('buffer'));
var url = _interopDefault(require('url'));
var http = _interopDefault(require('http'));
var https = _interopDefault(require('https'));
var net = _interopDefault(require('net'));
var assert = _interopDefault(require('assert'));

function commonjsRequire () {
	throw new Error('Dynamic requires are not currently supported by rollup-plugin-commonjs');
}

function unwrapExports (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x.default : x;
}

function createCommonjsModule(fn, module) {
	return module = { exports: {} }, fn(module, module.exports), module.exports;
}

function getCjsExportFromNamespace (n) {
	return n && n.default || n;
}

var hasFlag = (flag, argv) => {
	argv = argv || process.argv;
	const prefix = flag.startsWith('-') ? '' : (flag.length === 1 ? '-' : '--');
	const pos = argv.indexOf(prefix + flag);
	const terminatorPos = argv.indexOf('--');
	return pos !== -1 && (terminatorPos === -1 ? true : pos < terminatorPos);
};

const env = process.env;

let forceColor;
if (hasFlag('no-color') ||
	hasFlag('no-colors') ||
	hasFlag('color=false')) {
	forceColor = false;
} else if (hasFlag('color') ||
	hasFlag('colors') ||
	hasFlag('color=true') ||
	hasFlag('color=always')) {
	forceColor = true;
}
if ('FORCE_COLOR' in env) {
	forceColor = env.FORCE_COLOR.length === 0 || parseInt(env.FORCE_COLOR, 10) !== 0;
}

function translateLevel(level) {
	if (level === 0) {
		return false;
	}

	return {
		level,
		hasBasic: true,
		has256: level >= 2,
		has16m: level >= 3
	};
}

function supportsColor(stream$$1) {
	if (forceColor === false) {
		return 0;
	}

	if (hasFlag('color=16m') ||
		hasFlag('color=full') ||
		hasFlag('color=truecolor')) {
		return 3;
	}

	if (hasFlag('color=256')) {
		return 2;
	}

	if (stream$$1 && !stream$$1.isTTY && forceColor !== true) {
		return 0;
	}

	const min = forceColor ? 1 : 0;

	if (process.platform === 'win32') {
		// Node.js 7.5.0 is the first version of Node.js to include a patch to
		// libuv that enables 256 color output on Windows. Anything earlier and it
		// won't work. However, here we target Node.js 8 at minimum as it is an LTS
		// release, and Node.js 7 is not. Windows 10 build 10586 is the first Windows
		// release that supports 256 colors. Windows 10 build 14931 is the first release
		// that supports 16m/TrueColor.
		const osRelease = os.release().split('.');
		if (
			Number(process.versions.node.split('.')[0]) >= 8 &&
			Number(osRelease[0]) >= 10 &&
			Number(osRelease[2]) >= 10586
		) {
			return Number(osRelease[2]) >= 14931 ? 3 : 2;
		}

		return 1;
	}

	if ('CI' in env) {
		if (['TRAVIS', 'CIRCLECI', 'APPVEYOR', 'GITLAB_CI'].some(sign => sign in env) || env.CI_NAME === 'codeship') {
			return 1;
		}

		return min;
	}

	if ('TEAMCITY_VERSION' in env) {
		return /^(9\.(0*[1-9]\d*)\.|\d{2,}\.)/.test(env.TEAMCITY_VERSION) ? 1 : 0;
	}

	if (env.COLORTERM === 'truecolor') {
		return 3;
	}

	if ('TERM_PROGRAM' in env) {
		const version = parseInt((env.TERM_PROGRAM_VERSION || '').split('.')[0], 10);

		switch (env.TERM_PROGRAM) {
			case 'iTerm.app':
				return version >= 3 ? 3 : 2;
			case 'Apple_Terminal':
				return 2;
			// No default
		}
	}

	if (/-256(color)?$/i.test(env.TERM)) {
		return 2;
	}

	if (/^screen|^xterm|^vt100|^vt220|^rxvt|color|ansi|cygwin|linux/i.test(env.TERM)) {
		return 1;
	}

	if ('COLORTERM' in env) {
		return 1;
	}

	if (env.TERM === 'dumb') {
		return min;
	}

	return min;
}

function getSupportLevel(stream$$1) {
	const level = supportsColor(stream$$1);
	return translateLevel(level);
}

var supportsColor_1 = {
	supportsColor: getSupportLevel,
	stdout: getSupportLevel(process.stdout),
	stderr: getSupportLevel(process.stderr)
};

/**
 * Helpers.
 */

var s = 1000;
var m = s * 60;
var h = m * 60;
var d = h * 24;
var w = d * 7;
var y = d * 365.25;

/**
 * Parse or format the given `val`.
 *
 * Options:
 *
 *  - `long` verbose formatting [false]
 *
 * @param {String|Number} val
 * @param {Object} [options]
 * @throws {Error} throw an error if val is not a non-empty string or a number
 * @return {String|Number}
 * @api public
 */

var ms = function(val, options) {
  options = options || {};
  var type = typeof val;
  if (type === 'string' && val.length > 0) {
    return parse(val);
  } else if (type === 'number' && isNaN(val) === false) {
    return options.long ? fmtLong(val) : fmtShort(val);
  }
  throw new Error(
    'val is not a non-empty string or a valid number. val=' +
      JSON.stringify(val)
  );
};

/**
 * Parse the given `str` and return milliseconds.
 *
 * @param {String} str
 * @return {Number}
 * @api private
 */

function parse(str) {
  str = String(str);
  if (str.length > 100) {
    return;
  }
  var match = /^((?:\d+)?\-?\d?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
    str
  );
  if (!match) {
    return;
  }
  var n = parseFloat(match[1]);
  var type = (match[2] || 'ms').toLowerCase();
  switch (type) {
    case 'years':
    case 'year':
    case 'yrs':
    case 'yr':
    case 'y':
      return n * y;
    case 'weeks':
    case 'week':
    case 'w':
      return n * w;
    case 'days':
    case 'day':
    case 'd':
      return n * d;
    case 'hours':
    case 'hour':
    case 'hrs':
    case 'hr':
    case 'h':
      return n * h;
    case 'minutes':
    case 'minute':
    case 'mins':
    case 'min':
    case 'm':
      return n * m;
    case 'seconds':
    case 'second':
    case 'secs':
    case 'sec':
    case 's':
      return n * s;
    case 'milliseconds':
    case 'millisecond':
    case 'msecs':
    case 'msec':
    case 'ms':
      return n;
    default:
      return undefined;
  }
}

/**
 * Short format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtShort(ms) {
  var msAbs = Math.abs(ms);
  if (msAbs >= d) {
    return Math.round(ms / d) + 'd';
  }
  if (msAbs >= h) {
    return Math.round(ms / h) + 'h';
  }
  if (msAbs >= m) {
    return Math.round(ms / m) + 'm';
  }
  if (msAbs >= s) {
    return Math.round(ms / s) + 's';
  }
  return ms + 'ms';
}

/**
 * Long format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtLong(ms) {
  var msAbs = Math.abs(ms);
  if (msAbs >= d) {
    return plural(ms, msAbs, d, 'day');
  }
  if (msAbs >= h) {
    return plural(ms, msAbs, h, 'hour');
  }
  if (msAbs >= m) {
    return plural(ms, msAbs, m, 'minute');
  }
  if (msAbs >= s) {
    return plural(ms, msAbs, s, 'second');
  }
  return ms + ' ms';
}

/**
 * Pluralization helper.
 */

function plural(ms, msAbs, n, name) {
  var isPlural = msAbs >= n * 1.5;
  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
}

/**
 * This is the common logic for both the Node.js and web browser
 * implementations of `debug()`.
 */

function setup(env) {
	createDebug.debug = createDebug;
	createDebug.default = createDebug;
	createDebug.coerce = coerce;
	createDebug.disable = disable;
	createDebug.enable = enable;
	createDebug.enabled = enabled;
	createDebug.humanize = ms;

	Object.keys(env).forEach(key => {
		createDebug[key] = env[key];
	});

	/**
	* Active `debug` instances.
	*/
	createDebug.instances = [];

	/**
	* The currently active debug mode names, and names to skip.
	*/

	createDebug.names = [];
	createDebug.skips = [];

	/**
	* Map of special "%n" handling functions, for the debug "format" argument.
	*
	* Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
	*/
	createDebug.formatters = {};

	/**
	* Selects a color for a debug namespace
	* @param {String} namespace The namespace string for the for the debug instance to be colored
	* @return {Number|String} An ANSI color code for the given namespace
	* @api private
	*/
	function selectColor(namespace) {
		let hash = 0;

		for (let i = 0; i < namespace.length; i++) {
			hash = ((hash << 5) - hash) + namespace.charCodeAt(i);
			hash |= 0; // Convert to 32bit integer
		}

		return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
	}
	createDebug.selectColor = selectColor;

	/**
	* Create a debugger with the given `namespace`.
	*
	* @param {String} namespace
	* @return {Function}
	* @api public
	*/
	function createDebug(namespace) {
		let prevTime;

		function debug(...args) {
			// Disabled?
			if (!debug.enabled) {
				return;
			}

			const self = debug;

			// Set `diff` timestamp
			const curr = Number(new Date());
			const ms$$1 = curr - (prevTime || curr);
			self.diff = ms$$1;
			self.prev = prevTime;
			self.curr = curr;
			prevTime = curr;

			args[0] = createDebug.coerce(args[0]);

			if (typeof args[0] !== 'string') {
				// Anything else let's inspect with %O
				args.unshift('%O');
			}

			// Apply any `formatters` transformations
			let index = 0;
			args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {
				// If we encounter an escaped % then don't increase the array index
				if (match === '%%') {
					return match;
				}
				index++;
				const formatter = createDebug.formatters[format];
				if (typeof formatter === 'function') {
					const val = args[index];
					match = formatter.call(self, val);

					// Now we need to remove `args[index]` since it's inlined in the `format`
					args.splice(index, 1);
					index--;
				}
				return match;
			});

			// Apply env-specific formatting (colors, etc.)
			createDebug.formatArgs.call(self, args);

			const logFn = self.log || createDebug.log;
			logFn.apply(self, args);
		}

		debug.namespace = namespace;
		debug.enabled = createDebug.enabled(namespace);
		debug.useColors = createDebug.useColors();
		debug.color = selectColor(namespace);
		debug.destroy = destroy;
		debug.extend = extend;
		// Debug.formatArgs = formatArgs;
		// debug.rawLog = rawLog;

		// env-specific initialization logic for debug instances
		if (typeof createDebug.init === 'function') {
			createDebug.init(debug);
		}

		createDebug.instances.push(debug);

		return debug;
	}

	function destroy() {
		const index = createDebug.instances.indexOf(this);
		if (index !== -1) {
			createDebug.instances.splice(index, 1);
			return true;
		}
		return false;
	}

	function extend(namespace, delimiter) {
		const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
		newDebug.log = this.log;
		return newDebug;
	}

	/**
	* Enables a debug mode by namespaces. This can include modes
	* separated by a colon and wildcards.
	*
	* @param {String} namespaces
	* @api public
	*/
	function enable(namespaces) {
		createDebug.save(namespaces);

		createDebug.names = [];
		createDebug.skips = [];

		let i;
		const split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
		const len = split.length;

		for (i = 0; i < len; i++) {
			if (!split[i]) {
				// ignore empty strings
				continue;
			}

			namespaces = split[i].replace(/\*/g, '.*?');

			if (namespaces[0] === '-') {
				createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
			} else {
				createDebug.names.push(new RegExp('^' + namespaces + '$'));
			}
		}

		for (i = 0; i < createDebug.instances.length; i++) {
			const instance = createDebug.instances[i];
			instance.enabled = createDebug.enabled(instance.namespace);
		}
	}

	/**
	* Disable debug output.
	*
	* @return {String} namespaces
	* @api public
	*/
	function disable() {
		const namespaces = [
			...createDebug.names.map(toNamespace),
			...createDebug.skips.map(toNamespace).map(namespace => '-' + namespace)
		].join(',');
		createDebug.enable('');
		return namespaces;
	}

	/**
	* Returns true if the given mode name is enabled, false otherwise.
	*
	* @param {String} name
	* @return {Boolean}
	* @api public
	*/
	function enabled(name) {
		if (name[name.length - 1] === '*') {
			return true;
		}

		let i;
		let len;

		for (i = 0, len = createDebug.skips.length; i < len; i++) {
			if (createDebug.skips[i].test(name)) {
				return false;
			}
		}

		for (i = 0, len = createDebug.names.length; i < len; i++) {
			if (createDebug.names[i].test(name)) {
				return true;
			}
		}

		return false;
	}

	/**
	* Convert regexp to namespace
	*
	* @param {RegExp} regxep
	* @return {String} namespace
	* @api private
	*/
	function toNamespace(regexp) {
		return regexp.toString()
			.substring(2, regexp.toString().length - 2)
			.replace(/\.\*\?$/, '*');
	}

	/**
	* Coerce `val`.
	*
	* @param {Mixed} val
	* @return {Mixed}
	* @api private
	*/
	function coerce(val) {
		if (val instanceof Error) {
			return val.stack || val.message;
		}
		return val;
	}

	createDebug.enable(createDebug.load());

	return createDebug;
}

var common = setup;

var node = createCommonjsModule(function (module, exports) {
/**
 * Module dependencies.
 */




/**
 * This is the Node.js implementation of `debug()`.
 */

exports.init = init;
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;

/**
 * Colors.
 */

exports.colors = [6, 2, 3, 4, 5, 1];

try {
	// Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
	// eslint-disable-next-line import/no-extraneous-dependencies
	const supportsColor = supportsColor_1;

	if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {
		exports.colors = [
			20,
			21,
			26,
			27,
			32,
			33,
			38,
			39,
			40,
			41,
			42,
			43,
			44,
			45,
			56,
			57,
			62,
			63,
			68,
			69,
			74,
			75,
			76,
			77,
			78,
			79,
			80,
			81,
			92,
			93,
			98,
			99,
			112,
			113,
			128,
			129,
			134,
			135,
			148,
			149,
			160,
			161,
			162,
			163,
			164,
			165,
			166,
			167,
			168,
			169,
			170,
			171,
			172,
			173,
			178,
			179,
			184,
			185,
			196,
			197,
			198,
			199,
			200,
			201,
			202,
			203,
			204,
			205,
			206,
			207,
			208,
			209,
			214,
			215,
			220,
			221
		];
	}
} catch (error) {
	// Swallow - we only care if `supports-color` is available; it doesn't have to be.
}

/**
 * Build up the default `inspectOpts` object from the environment variables.
 *
 *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
 */

exports.inspectOpts = Object.keys(process.env).filter(key => {
	return /^debug_/i.test(key);
}).reduce((obj, key) => {
	// Camel-case
	const prop = key
		.substring(6)
		.toLowerCase()
		.replace(/_([a-z])/g, (_, k) => {
			return k.toUpperCase();
		});

	// Coerce string value into JS value
	let val = process.env[key];
	if (/^(yes|on|true|enabled)$/i.test(val)) {
		val = true;
	} else if (/^(no|off|false|disabled)$/i.test(val)) {
		val = false;
	} else if (val === 'null') {
		val = null;
	} else {
		val = Number(val);
	}

	obj[prop] = val;
	return obj;
}, {});

/**
 * Is stdout a TTY? Colored output is enabled when `true`.
 */

function useColors() {
	return 'colors' in exports.inspectOpts ?
		Boolean(exports.inspectOpts.colors) :
		tty.isatty(process.stderr.fd);
}

/**
 * Adds ANSI color escape codes if enabled.
 *
 * @api public
 */

function formatArgs(args) {
	const {namespace: name, useColors} = this;

	if (useColors) {
		const c = this.color;
		const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
		const prefix = `  ${colorCode};1m${name} \u001B[0m`;

		args[0] = prefix + args[0].split('\n').join('\n' + prefix);
		args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m');
	} else {
		args[0] = getDate() + name + ' ' + args[0];
	}
}

function getDate() {
	if (exports.inspectOpts.hideDate) {
		return '';
	}
	return new Date().toISOString() + ' ';
}

/**
 * Invokes `util.format()` with the specified arguments and writes to stderr.
 */

function log(...args) {
	return process.stderr.write(util.format(...args) + '\n');
}

/**
 * Save `namespaces`.
 *
 * @param {String} namespaces
 * @api private
 */
function save(namespaces) {
	if (namespaces) {
		process.env.DEBUG = namespaces;
	} else {
		// If you set a process.env field to null or undefined, it gets cast to the
		// string 'null' or 'undefined'. Just delete instead.
		delete process.env.DEBUG;
	}
}

/**
 * Load `namespaces`.
 *
 * @return {String} returns the previously persisted debug modes
 * @api private
 */

function load() {
	return process.env.DEBUG;
}

/**
 * Init logic for `debug` instances.
 *
 * Create a new `inspectOpts` object in case `useColors` is set
 * differently for a particular `debug` instance.
 */

function init(debug) {
	debug.inspectOpts = {};

	const keys = Object.keys(exports.inspectOpts);
	for (let i = 0; i < keys.length; i++) {
		debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
	}
}

module.exports = common(exports);

const {formatters} = module.exports;

/**
 * Map %o to `util.inspect()`, all on a single line.
 */

formatters.o = function (v) {
	this.inspectOpts.colors = this.useColors;
	return util.inspect(v, this.inspectOpts)
		.replace(/\s*\n\s*/g, ' ');
};

/**
 * Map %O to `util.inspect()`, allowing multiple lines if needed.
 */

formatters.O = function (v) {
	this.inspectOpts.colors = this.useColors;
	return util.inspect(v, this.inspectOpts);
};
});
var node_1 = node.init;
var node_2 = node.log;
var node_3 = node.formatArgs;
var node_4 = node.save;
var node_5 = node.load;
var node_6 = node.useColors;
var node_7 = node.colors;
var node_8 = node.inspectOpts;

// Returns a wrapper function that returns a wrapped callback
// The wrapper function should do some stuff, and return a
// presumably different callback function.
// This makes sure that own properties are retained, so that
// decorations and such are not lost along the way.
var wrappy_1 = wrappy;
function wrappy (fn, cb) {
  if (fn && cb) return wrappy(fn)(cb)

  if (typeof fn !== 'function')
    throw new TypeError('need wrapper function')

  Object.keys(fn).forEach(function (k) {
    wrapper[k] = fn[k];
  });

  return wrapper

  function wrapper() {
    var args = new Array(arguments.length);
    for (var i = 0; i < args.length; i++) {
      args[i] = arguments[i];
    }
    var ret = fn.apply(this, args);
    var cb = args[args.length-1];
    if (typeof ret === 'function' && ret !== cb) {
      Object.keys(cb).forEach(function (k) {
        ret[k] = cb[k];
      });
    }
    return ret
  }
}

var once_1 = wrappy_1(once);
var strict = wrappy_1(onceStrict);

once.proto = once(function () {
  Object.defineProperty(Function.prototype, 'once', {
    value: function () {
      return once(this)
    },
    configurable: true
  });

  Object.defineProperty(Function.prototype, 'onceStrict', {
    value: function () {
      return onceStrict(this)
    },
    configurable: true
  });
});

function once (fn) {
  var f = function () {
    if (f.called) return f.value
    f.called = true;
    return f.value = fn.apply(this, arguments)
  };
  f.called = false;
  return f
}

function onceStrict (fn) {
  var f = function () {
    if (f.called)
      throw new Error(f.onceError)
    f.called = true;
    return f.value = fn.apply(this, arguments)
  };
  var name = fn.name || 'Function wrapped with `once`';
  f.onceError = name + " shouldn't be called more than once";
  f.called = false;
  return f
}
once_1.strict = strict;

var noop = function() {};

var isRequest = function(stream$$1) {
	return stream$$1.setHeader && typeof stream$$1.abort === 'function';
};

var isChildProcess = function(stream$$1) {
	return stream$$1.stdio && Array.isArray(stream$$1.stdio) && stream$$1.stdio.length === 3
};

var eos = function(stream$$1, opts, callback) {
	if (typeof opts === 'function') return eos(stream$$1, null, opts);
	if (!opts) opts = {};

	callback = once_1(callback || noop);

	var ws = stream$$1._writableState;
	var rs = stream$$1._readableState;
	var readable = opts.readable || (opts.readable !== false && stream$$1.readable);
	var writable = opts.writable || (opts.writable !== false && stream$$1.writable);

	var onlegacyfinish = function() {
		if (!stream$$1.writable) onfinish();
	};

	var onfinish = function() {
		writable = false;
		if (!readable) callback.call(stream$$1);
	};

	var onend = function() {
		readable = false;
		if (!writable) callback.call(stream$$1);
	};

	var onexit = function(exitCode) {
		callback.call(stream$$1, exitCode ? new Error('exited with error code: ' + exitCode) : null);
	};

	var onerror = function(err) {
		callback.call(stream$$1, err);
	};

	var onclose = function() {
		if (readable && !(rs && rs.ended)) return callback.call(stream$$1, new Error('premature close'));
		if (writable && !(ws && ws.ended)) return callback.call(stream$$1, new Error('premature close'));
	};

	var onrequest = function() {
		stream$$1.req.on('finish', onfinish);
	};

	if (isRequest(stream$$1)) {
		stream$$1.on('complete', onfinish);
		stream$$1.on('abort', onclose);
		if (stream$$1.req) onrequest();
		else stream$$1.on('request', onrequest);
	} else if (writable && !ws) { // legacy streams
		stream$$1.on('end', onlegacyfinish);
		stream$$1.on('close', onlegacyfinish);
	}

	if (isChildProcess(stream$$1)) stream$$1.on('exit', onexit);

	stream$$1.on('end', onend);
	stream$$1.on('finish', onfinish);
	if (opts.error !== false) stream$$1.on('error', onerror);
	stream$$1.on('close', onclose);

	return function() {
		stream$$1.removeListener('complete', onfinish);
		stream$$1.removeListener('abort', onclose);
		stream$$1.removeListener('request', onrequest);
		if (stream$$1.req) stream$$1.req.removeListener('finish', onfinish);
		stream$$1.removeListener('end', onlegacyfinish);
		stream$$1.removeListener('close', onlegacyfinish);
		stream$$1.removeListener('finish', onfinish);
		stream$$1.removeListener('exit', onexit);
		stream$$1.removeListener('end', onend);
		stream$$1.removeListener('error', onerror);
		stream$$1.removeListener('close', onclose);
	};
};

var endOfStream = eos;

// we only need fs to get the ReadStream and WriteStream prototypes

var noop$1 = function () {};
var ancient = /^v?\.0/.test(process.version);

var isFn = function (fn) {
  return typeof fn === 'function'
};

var isFS = function (stream$$1) {
  if (!ancient) return false // newer node version do not need to care about fs is a special way
  if (!fs) return false // browser
  return (stream$$1 instanceof (fs.ReadStream || noop$1) || stream$$1 instanceof (fs.WriteStream || noop$1)) && isFn(stream$$1.close)
};

var isRequest$1 = function (stream$$1) {
  return stream$$1.setHeader && isFn(stream$$1.abort)
};

var destroyer = function (stream$$1, reading, writing, callback) {
  callback = once_1(callback);

  var closed = false;
  stream$$1.on('close', function () {
    closed = true;
  });

  endOfStream(stream$$1, {readable: reading, writable: writing}, function (err) {
    if (err) return callback(err)
    closed = true;
    callback();
  });

  var destroyed = false;
  return function (err) {
    if (closed) return
    if (destroyed) return
    destroyed = true;

    if (isFS(stream$$1)) return stream$$1.close(noop$1) // use close for fs streams to avoid fd leaks
    if (isRequest$1(stream$$1)) return stream$$1.abort() // request.destroy just do .end - .abort is what we want

    if (isFn(stream$$1.destroy)) return stream$$1.destroy()

    callback(err || new Error('stream was destroyed'));
  }
};

var call = function (fn) {
  fn();
};

var pipe = function (from, to) {
  return from.pipe(to)
};

var pump = function () {
  var streams = Array.prototype.slice.call(arguments);
  var callback = isFn(streams[streams.length - 1] || noop$1) && streams.pop() || noop$1;

  if (Array.isArray(streams[0])) streams = streams[0];
  if (streams.length < 2) throw new Error('pump requires two streams per minimum')

  var error;
  var destroys = streams.map(function (stream$$1, i) {
    var reading = i < streams.length - 1;
    var writing = i > 0;
    return destroyer(stream$$1, reading, writing, function (err) {
      if (!error) error = err;
      if (err) destroys.forEach(call);
      if (reading) return
      destroys.forEach(call);
      callback(error);
    })
  });

  return streams.reduce(pipe)
};

var pump_1 = pump;

var streamShift = shift;

function shift (stream$$1) {
  var rs = stream$$1._readableState;
  if (!rs) return null
  return rs.objectMode ? stream$$1.read() : stream$$1.read(getStateLength(rs))
}

function getStateLength (state) {
  if (state.buffer.length) {
    // Since node 6.3.0 state.buffer is a BufferList not an array
    if (state.buffer.head) {
      return state.buffer.head.data.length
    }

    return state.buffer[0].length
  }

  return state.length
}

var streamEach = each;

function each (stream$$1, fn, cb) {
  var want = true;
  var error = null;
  var ended = false;
  var running = false;
  var calling = false;

  stream$$1.on('readable', onreadable);
  onreadable();

  if (cb) endOfStream(stream$$1, {readable: true, writable: false}, done);
  return stream$$1

  function done (err) {
    if (!error) error = err;
    ended = true;
    if (!running) cb(error);
  }

  function onreadable () {
    if (want) read();
  }

  function afterRead (err) {
    running = false;

    if (err) {
      error = err;
      if (ended) return cb(error)
      stream$$1.destroy(err);
      return
    }
    if (ended) return cb(error)
    if (!calling) read();
  }

  function read () {
    while (!running && !ended) {
      want = false;

      var data = streamShift(stream$$1);
      if (ended) return
      if (data === null) {
        want = true;
        return
      }

      running = true;
      calling = true;
      fn(data, afterRead);
      calling = false;
    }
  }
}

// we only need fs to get the ReadStream and WriteStream prototypes

var noop$2 = function () {};
var ancient$1 = /^v?\.0/.test(process.version);

var isFn$1 = function (fn) {
  return typeof fn === 'function'
};

var isFS$1 = function (stream$$1) {
  if (!ancient$1) return false // newer node version do not need to care about fs is a special way
  if (!fs) return false // browser
  return (stream$$1 instanceof (fs.ReadStream || noop$2) || stream$$1 instanceof (fs.WriteStream || noop$2)) && isFn$1(stream$$1.close)
};

var isRequest$2 = function (stream$$1) {
  return stream$$1.setHeader && isFn$1(stream$$1.abort)
};

var destroyer$1 = function (stream$$1, reading, writing, callback) {
  callback = once_1(callback);

  var closed = false;
  stream$$1.on('close', function () {
    closed = true;
  });

  endOfStream(stream$$1, {readable: reading, writable: writing}, function (err) {
    if (err) return callback(err)
    closed = true;
    callback();
  });

  var destroyed = false;
  return function (err) {
    if (closed) return
    if (destroyed) return
    destroyed = true;

    if (isFS$1(stream$$1)) return stream$$1.close(noop$2) // use close for fs streams to avoid fd leaks
    if (isRequest$2(stream$$1)) return stream$$1.abort() // request.destroy just do .end - .abort is what we want

    if (isFn$1(stream$$1.destroy)) return stream$$1.destroy()

    callback(err || new Error('stream was destroyed'));
  }
};

var call$1 = function (fn) {
  fn();
};

var pipe$1 = function (from, to) {
  return from.pipe(to)
};

var pump$1 = function () {
  var streams = Array.prototype.slice.call(arguments);
  var callback = isFn$1(streams[streams.length - 1] || noop$2) && streams.pop() || noop$2;

  if (Array.isArray(streams[0])) streams = streams[0];
  if (streams.length < 2) throw new Error('pump requires two streams per minimum')

  var error;
  var destroys = streams.map(function (stream$$1, i) {
    var reading = i < streams.length - 1;
    var writing = i > 0;
    return destroyer$1(stream$$1, reading, writing, function (err) {
      if (!error) error = err;
      if (err) destroys.forEach(call$1);
      if (reading) return
      destroys.forEach(call$1);
      callback(error);
    })
  });

  streams.reduce(pipe$1);
};

var pump_1$1 = pump$1;

var inherits_browser = createCommonjsModule(function (module) {
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor;
    ctor.prototype = Object.create(superCtor.prototype, {
      constructor: {
        value: ctor,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    ctor.super_ = superCtor;
    var TempCtor = function () {};
    TempCtor.prototype = superCtor.prototype;
    ctor.prototype = new TempCtor();
    ctor.prototype.constructor = ctor;
  };
}
});

var inherits = createCommonjsModule(function (module) {
try {
  var util$$1 = util;
  if (typeof util$$1.inherits !== 'function') throw '';
  module.exports = util$$1.inherits;
} catch (e) {
  module.exports = inherits_browser;
}
});

var SIGNAL_FLUSH = (Buffer.from && Buffer.from !== Uint8Array.from)
  ? Buffer.from([0])
  : new Buffer([0]);

var onuncork = function(self, fn) {
  if (self._corked) self.once('uncork', fn);
  else fn();
};

var autoDestroy = function (self, err) {
  if (self._autoDestroy) self.destroy(err);
};

var destroyer$2 = function(self, end) {
  return function(err) {
    if (err) autoDestroy(self, err.message === 'premature close' ? null : err);
    else if (end && !self._ended) self.end();
  }
};

var end = function(ws, fn) {
  if (!ws) return fn()
  if (ws._writableState && ws._writableState.finished) return fn()
  if (ws._writableState) return ws.end(fn)
  ws.end();
  fn();
};

var toStreams2 = function(rs) {
  return new (readableStream.Readable)({objectMode:true, highWaterMark:16}).wrap(rs)
};

var Duplexify = function(writable, readable, opts) {
  if (!(this instanceof Duplexify)) return new Duplexify(writable, readable, opts)
  readableStream.Duplex.call(this, opts);

  this._writable = null;
  this._readable = null;
  this._readable2 = null;

  this._autoDestroy = !opts || opts.autoDestroy !== false;
  this._forwardDestroy = !opts || opts.destroy !== false;
  this._forwardEnd = !opts || opts.end !== false;
  this._corked = 1; // start corked
  this._ondrain = null;
  this._drained = false;
  this._forwarding = false;
  this._unwrite = null;
  this._unread = null;
  this._ended = false;

  this.destroyed = false;

  if (writable) this.setWritable(writable);
  if (readable) this.setReadable(readable);
};

inherits(Duplexify, readableStream.Duplex);

Duplexify.obj = function(writable, readable, opts) {
  if (!opts) opts = {};
  opts.objectMode = true;
  opts.highWaterMark = 16;
  return new Duplexify(writable, readable, opts)
};

Duplexify.prototype.cork = function() {
  if (++this._corked === 1) this.emit('cork');
};

Duplexify.prototype.uncork = function() {
  if (this._corked && --this._corked === 0) this.emit('uncork');
};

Duplexify.prototype.setWritable = function(writable) {
  if (this._unwrite) this._unwrite();

  if (this.destroyed) {
    if (writable && writable.destroy) writable.destroy();
    return
  }

  if (writable === null || writable === false) {
    this.end();
    return
  }

  var self = this;
  var unend = endOfStream(writable, {writable:true, readable:false}, destroyer$2(this, this._forwardEnd));

  var ondrain = function() {
    var ondrain = self._ondrain;
    self._ondrain = null;
    if (ondrain) ondrain();
  };

  var clear = function() {
    self._writable.removeListener('drain', ondrain);
    unend();
  };

  if (this._unwrite) process.nextTick(ondrain); // force a drain on stream reset to avoid livelocks

  this._writable = writable;
  this._writable.on('drain', ondrain);
  this._unwrite = clear;

  this.uncork(); // always uncork setWritable
};

Duplexify.prototype.setReadable = function(readable) {
  if (this._unread) this._unread();

  if (this.destroyed) {
    if (readable && readable.destroy) readable.destroy();
    return
  }

  if (readable === null || readable === false) {
    this.push(null);
    this.resume();
    return
  }

  var self = this;
  var unend = endOfStream(readable, {writable:false, readable:true}, destroyer$2(this));

  var onreadable = function() {
    self._forward();
  };

  var onend = function() {
    self.push(null);
  };

  var clear = function() {
    self._readable2.removeListener('readable', onreadable);
    self._readable2.removeListener('end', onend);
    unend();
  };

  this._drained = true;
  this._readable = readable;
  this._readable2 = readable._readableState ? readable : toStreams2(readable);
  this._readable2.on('readable', onreadable);
  this._readable2.on('end', onend);
  this._unread = clear;

  this._forward();
};

Duplexify.prototype._read = function() {
  this._drained = true;
  this._forward();
};

Duplexify.prototype._forward = function() {
  if (this._forwarding || !this._readable2 || !this._drained) return
  this._forwarding = true;

  var data;

  while (this._drained && (data = streamShift(this._readable2)) !== null) {
    if (this.destroyed) continue
    this._drained = this.push(data);
  }

  this._forwarding = false;
};

Duplexify.prototype.destroy = function(err) {
  if (this.destroyed) return
  this.destroyed = true;

  var self = this;
  process.nextTick(function() {
    self._destroy(err);
  });
};

Duplexify.prototype._destroy = function(err) {
  if (err) {
    var ondrain = this._ondrain;
    this._ondrain = null;
    if (ondrain) ondrain(err);
    else this.emit('error', err);
  }

  if (this._forwardDestroy) {
    if (this._readable && this._readable.destroy) this._readable.destroy();
    if (this._writable && this._writable.destroy) this._writable.destroy();
  }

  this.emit('close');
};

Duplexify.prototype._write = function(data, enc, cb) {
  if (this.destroyed) return cb()
  if (this._corked) return onuncork(this, this._write.bind(this, data, enc, cb))
  if (data === SIGNAL_FLUSH) return this._finish(cb)
  if (!this._writable) return cb()

  if (this._writable.write(data) === false) this._ondrain = cb;
  else cb();
};

Duplexify.prototype._finish = function(cb) {
  var self = this;
  this.emit('preend');
  onuncork(this, function() {
    end(self._forwardEnd && self._writable, function() {
      // haxx to not emit prefinish twice
      if (self._writableState.prefinished === false) self._writableState.prefinished = true;
      self.emit('prefinish');
      onuncork(self, cb);
    });
  });
};

Duplexify.prototype.end = function(data, enc, cb) {
  if (typeof data === 'function') return this.end(null, null, data)
  if (typeof enc === 'function') return this.end(data, null, enc)
  this._ended = true;
  if (data) this.write(data);
  if (!this._writableState.ending) this.write(SIGNAL_FLUSH);
  return readableStream.Writable.prototype.end.call(this, cb)
};

var duplexify = Duplexify;

var toArray = function(args) {
  if (!args.length) return []
  return Array.isArray(args[0]) ? args[0] : Array.prototype.slice.call(args)
};

var define = function(opts) {
  var Pumpify = function() {
    var streams = toArray(arguments);
    if (!(this instanceof Pumpify)) return new Pumpify(streams)
    duplexify.call(this, null, null, opts);
    if (streams.length) this.setPipeline(streams);
  };

  inherits(Pumpify, duplexify);

  Pumpify.prototype.setPipeline = function() {
    var streams = toArray(arguments);
    var self = this;
    var ended = false;
    var w = streams[0];
    var r = streams[streams.length-1];

    r = r.readable ? r : null;
    w = w.writable ? w : null;

    var onclose = function() {
      streams[0].emit('error', new Error('stream was destroyed'));
    };

    this.on('close', onclose);
    this.on('prefinish', function() {
      if (!ended) self.cork();
    });

    pump_1$1(streams, function(err) {
      self.removeListener('close', onclose);
      if (err) return self.destroy(err.message === 'premature close' ? null : err)
      ended = true;
      // pump ends after the last stream is not writable *but*
      // pumpify still forwards the readable part so we need to catch errors
      // still, so reenable autoDestroy in this case
      if (self._autoDestroy === false) self._autoDestroy = true;
      self.uncork();
    });

    if (this.destroyed) return onclose()
    this.setWritable(w);
    this.setReadable(r);
  };

  return Pumpify
};

var pumpify = define({autoDestroy:false, destroy:false});
var obj = define({autoDestroy: false, destroy:false, objectMode:true, highWaterMark:16});
var ctor = define;
pumpify.obj = obj;
pumpify.ctor = ctor;

var immutable = extend;

var hasOwnProperty = Object.prototype.hasOwnProperty;

function extend() {
    var target = {};

    for (var i = 0; i < arguments.length; i++) {
        var source = arguments[i];

        for (var key in source) {
            if (hasOwnProperty.call(source, key)) {
                target[key] = source[key];
            }
        }
    }

    return target
}

var Transform = readableStream.Transform
  , inherits$1  = util.inherits;

function DestroyableTransform(opts) {
  Transform.call(this, opts);
  this._destroyed = false;
}

inherits$1(DestroyableTransform, Transform);

DestroyableTransform.prototype.destroy = function(err) {
  if (this._destroyed) return
  this._destroyed = true;
  
  var self = this;
  process.nextTick(function() {
    if (err)
      self.emit('error', err);
    self.emit('close');
  });
};

// a noop _transform function
function noop$3 (chunk, enc, callback) {
  callback(null, chunk);
}


// create a new export function, used by both the main export and
// the .ctor export, contains common logic for dealing with arguments
function through2 (construct) {
  return function (options, transform, flush) {
    if (typeof options == 'function') {
      flush     = transform;
      transform = options;
      options   = {};
    }

    if (typeof transform != 'function')
      transform = noop$3;

    if (typeof flush != 'function')
      flush = null;

    return construct(options, transform, flush)
  }
}


// main export, just make me a transform stream!
var through2_1 = through2(function (options, transform, flush) {
  var t2 = new DestroyableTransform(options);

  t2._transform = transform;

  if (flush)
    t2._flush = flush;

  return t2
});


// make me a reusable prototype that I can `new`, or implicitly `new`
// with a constructor call
var ctor$1 = through2(function (options, transform, flush) {
  function Through2 (override) {
    if (!(this instanceof Through2))
      return new Through2(override)

    this.options = immutable(options, override);

    DestroyableTransform.call(this, this.options);
  }

  inherits$1(Through2, DestroyableTransform);

  Through2.prototype._transform = transform;

  if (flush)
    Through2.prototype._flush = flush;

  return Through2
});


var obj$1 = through2(function (options, transform, flush) {
  var t2 = new DestroyableTransform(immutable({ objectMode: true, highWaterMark: 16 }, options));

  t2._transform = transform;

  if (flush)
    t2._flush = flush;

  return t2
});
through2_1.ctor = ctor$1;
through2_1.obj = obj$1;

var toString = Object.prototype.toString;

var isModern = (
  typeof Buffer.alloc === 'function' &&
  typeof Buffer.allocUnsafe === 'function' &&
  typeof Buffer.from === 'function'
);

function isArrayBuffer (input) {
  return toString.call(input).slice(8, -1) === 'ArrayBuffer'
}

function fromArrayBuffer (obj, byteOffset, length) {
  byteOffset >>>= 0;

  var maxLength = obj.byteLength - byteOffset;

  if (maxLength < 0) {
    throw new RangeError("'offset' is out of bounds")
  }

  if (length === undefined) {
    length = maxLength;
  } else {
    length >>>= 0;

    if (length > maxLength) {
      throw new RangeError("'length' is out of bounds")
    }
  }

  return isModern
    ? Buffer.from(obj.slice(byteOffset, byteOffset + length))
    : new Buffer(new Uint8Array(obj.slice(byteOffset, byteOffset + length)))
}

function fromString (string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') {
    encoding = 'utf8';
  }

  if (!Buffer.isEncoding(encoding)) {
    throw new TypeError('"encoding" must be a valid string encoding')
  }

  return isModern
    ? Buffer.from(string, encoding)
    : new Buffer(string, encoding)
}

function bufferFrom (value, encodingOrOffset, length) {
  if (typeof value === 'number') {
    throw new TypeError('"value" argument must not be a number')
  }

  if (isArrayBuffer(value)) {
    return fromArrayBuffer(value, encodingOrOffset, length)
  }

  if (typeof value === 'string') {
    return fromString(value, encodingOrOffset)
  }

  return isModern
    ? Buffer.from(value)
    : new Buffer(value)
}

var bufferFrom_1 = bufferFrom;

var typedarray = createCommonjsModule(function (module, exports) {
var undefined = (void 0); // Paranoia

// Beyond this value, index getters/setters (i.e. array[0], array[1]) are so slow to
// create, and consume so much memory, that the browser appears frozen.
var MAX_ARRAY_LENGTH = 1e5;

// Approximations of internal ECMAScript conversion functions
var ECMAScript = (function() {
  // Stash a copy in case other scripts modify these
  var opts = Object.prototype.toString,
      ophop = Object.prototype.hasOwnProperty;

  return {
    // Class returns internal [[Class]] property, used to avoid cross-frame instanceof issues:
    Class: function(v) { return opts.call(v).replace(/^\[object *|\]$/g, ''); },
    HasProperty: function(o, p) { return p in o; },
    HasOwnProperty: function(o, p) { return ophop.call(o, p); },
    IsCallable: function(o) { return typeof o === 'function'; },
    ToInt32: function(v) { return v >> 0; },
    ToUint32: function(v) { return v >>> 0; }
  };
}());

// Snapshot intrinsics
var LN2 = Math.LN2,
    abs = Math.abs,
    floor = Math.floor,
    log = Math.log,
    min = Math.min,
    pow = Math.pow,
    round = Math.round;

// ES5: lock down object properties
function configureProperties(obj) {
  if (getOwnPropNames && defineProp) {
    var props = getOwnPropNames(obj), i;
    for (i = 0; i < props.length; i += 1) {
      defineProp(obj, props[i], {
        value: obj[props[i]],
        writable: false,
        enumerable: false,
        configurable: false
      });
    }
  }
}

// emulate ES5 getter/setter API using legacy APIs
// http://blogs.msdn.com/b/ie/archive/2010/09/07/transitioning-existing-code-to-the-es5-getter-setter-apis.aspx
// (second clause tests for Object.defineProperty() in IE<9 that only supports extending DOM prototypes, but
// note that IE<9 does not support __defineGetter__ or __defineSetter__ so it just renders the method harmless)
var defineProp;
if (Object.defineProperty && (function() {
      try {
        Object.defineProperty({}, 'x', {});
        return true;
      } catch (e) {
        return false;
      }
    })()) {
  defineProp = Object.defineProperty;
} else {
  defineProp = function(o, p, desc) {
    if (!o === Object(o)) throw new TypeError("Object.defineProperty called on non-object");
    if (ECMAScript.HasProperty(desc, 'get') && Object.prototype.__defineGetter__) { Object.prototype.__defineGetter__.call(o, p, desc.get); }
    if (ECMAScript.HasProperty(desc, 'set') && Object.prototype.__defineSetter__) { Object.prototype.__defineSetter__.call(o, p, desc.set); }
    if (ECMAScript.HasProperty(desc, 'value')) { o[p] = desc.value; }
    return o;
  };
}

var getOwnPropNames = Object.getOwnPropertyNames || function (o) {
  if (o !== Object(o)) throw new TypeError("Object.getOwnPropertyNames called on non-object");
  var props = [], p;
  for (p in o) {
    if (ECMAScript.HasOwnProperty(o, p)) {
      props.push(p);
    }
  }
  return props;
};

// ES5: Make obj[index] an alias for obj._getter(index)/obj._setter(index, value)
// for index in 0 ... obj.length
function makeArrayAccessors(obj) {
  if (!defineProp) { return; }

  if (obj.length > MAX_ARRAY_LENGTH) throw new RangeError("Array too large for polyfill");

  function makeArrayAccessor(index) {
    defineProp(obj, index, {
      'get': function() { return obj._getter(index); },
      'set': function(v) { obj._setter(index, v); },
      enumerable: true,
      configurable: false
    });
  }

  var i;
  for (i = 0; i < obj.length; i += 1) {
    makeArrayAccessor(i);
  }
}

// Internal conversion functions:
//    pack<Type>()   - take a number (interpreted as Type), output a byte array
//    unpack<Type>() - take a byte array, output a Type-like number

function as_signed(value, bits) { var s = 32 - bits; return (value << s) >> s; }
function as_unsigned(value, bits) { var s = 32 - bits; return (value << s) >>> s; }

function packI8(n) { return [n & 0xff]; }
function unpackI8(bytes) { return as_signed(bytes[0], 8); }

function packU8(n) { return [n & 0xff]; }
function unpackU8(bytes) { return as_unsigned(bytes[0], 8); }

function packU8Clamped(n) { n = round(Number(n)); return [n < 0 ? 0 : n > 0xff ? 0xff : n & 0xff]; }

function packI16(n) { return [(n >> 8) & 0xff, n & 0xff]; }
function unpackI16(bytes) { return as_signed(bytes[0] << 8 | bytes[1], 16); }

function packU16(n) { return [(n >> 8) & 0xff, n & 0xff]; }
function unpackU16(bytes) { return as_unsigned(bytes[0] << 8 | bytes[1], 16); }

function packI32(n) { return [(n >> 24) & 0xff, (n >> 16) & 0xff, (n >> 8) & 0xff, n & 0xff]; }
function unpackI32(bytes) { return as_signed(bytes[0] << 24 | bytes[1] << 16 | bytes[2] << 8 | bytes[3], 32); }

function packU32(n) { return [(n >> 24) & 0xff, (n >> 16) & 0xff, (n >> 8) & 0xff, n & 0xff]; }
function unpackU32(bytes) { return as_unsigned(bytes[0] << 24 | bytes[1] << 16 | bytes[2] << 8 | bytes[3], 32); }

function packIEEE754(v, ebits, fbits) {

  var bias = (1 << (ebits - 1)) - 1,
      s, e, f, i, bits, str, bytes;

  function roundToEven(n) {
    var w = floor(n), f = n - w;
    if (f < 0.5)
      return w;
    if (f > 0.5)
      return w + 1;
    return w % 2 ? w + 1 : w;
  }

  // Compute sign, exponent, fraction
  if (v !== v) {
    // NaN
    // http://dev.w3.org/2006/webapi/WebIDL/#es-type-mapping
    e = (1 << ebits) - 1; f = pow(2, fbits - 1); s = 0;
  } else if (v === Infinity || v === -Infinity) {
    e = (1 << ebits) - 1; f = 0; s = (v < 0) ? 1 : 0;
  } else if (v === 0) {
    e = 0; f = 0; s = (1 / v === -Infinity) ? 1 : 0;
  } else {
    s = v < 0;
    v = abs(v);

    if (v >= pow(2, 1 - bias)) {
      e = min(floor(log(v) / LN2), 1023);
      f = roundToEven(v / pow(2, e) * pow(2, fbits));
      if (f / pow(2, fbits) >= 2) {
        e = e + 1;
        f = 1;
      }
      if (e > bias) {
        // Overflow
        e = (1 << ebits) - 1;
        f = 0;
      } else {
        // Normalized
        e = e + bias;
        f = f - pow(2, fbits);
      }
    } else {
      // Denormalized
      e = 0;
      f = roundToEven(v / pow(2, 1 - bias - fbits));
    }
  }

  // Pack sign, exponent, fraction
  bits = [];
  for (i = fbits; i; i -= 1) { bits.push(f % 2 ? 1 : 0); f = floor(f / 2); }
  for (i = ebits; i; i -= 1) { bits.push(e % 2 ? 1 : 0); e = floor(e / 2); }
  bits.push(s ? 1 : 0);
  bits.reverse();
  str = bits.join('');

  // Bits to bytes
  bytes = [];
  while (str.length) {
    bytes.push(parseInt(str.substring(0, 8), 2));
    str = str.substring(8);
  }
  return bytes;
}

function unpackIEEE754(bytes, ebits, fbits) {

  // Bytes to bits
  var bits = [], i, j, b, str,
      bias, s, e, f;

  for (i = bytes.length; i; i -= 1) {
    b = bytes[i - 1];
    for (j = 8; j; j -= 1) {
      bits.push(b % 2 ? 1 : 0); b = b >> 1;
    }
  }
  bits.reverse();
  str = bits.join('');

  // Unpack sign, exponent, fraction
  bias = (1 << (ebits - 1)) - 1;
  s = parseInt(str.substring(0, 1), 2) ? -1 : 1;
  e = parseInt(str.substring(1, 1 + ebits), 2);
  f = parseInt(str.substring(1 + ebits), 2);

  // Produce number
  if (e === (1 << ebits) - 1) {
    return f !== 0 ? NaN : s * Infinity;
  } else if (e > 0) {
    // Normalized
    return s * pow(2, e - bias) * (1 + f / pow(2, fbits));
  } else if (f !== 0) {
    // Denormalized
    return s * pow(2, -(bias - 1)) * (f / pow(2, fbits));
  } else {
    return s < 0 ? -0 : 0;
  }
}

function unpackF64(b) { return unpackIEEE754(b, 11, 52); }
function packF64(v) { return packIEEE754(v, 11, 52); }
function unpackF32(b) { return unpackIEEE754(b, 8, 23); }
function packF32(v) { return packIEEE754(v, 8, 23); }


//
// 3 The ArrayBuffer Type
//

(function() {

  /** @constructor */
  var ArrayBuffer = function ArrayBuffer(length) {
    length = ECMAScript.ToInt32(length);
    if (length < 0) throw new RangeError('ArrayBuffer size is not a small enough positive integer');

    this.byteLength = length;
    this._bytes = [];
    this._bytes.length = length;

    var i;
    for (i = 0; i < this.byteLength; i += 1) {
      this._bytes[i] = 0;
    }

    configureProperties(this);
  };

  exports.ArrayBuffer = exports.ArrayBuffer || ArrayBuffer;

  //
  // 4 The ArrayBufferView Type
  //

  // NOTE: this constructor is not exported
  /** @constructor */
  var ArrayBufferView = function ArrayBufferView() {
    //this.buffer = null;
    //this.byteOffset = 0;
    //this.byteLength = 0;
  };

  //
  // 5 The Typed Array View Types
  //

  function makeConstructor(bytesPerElement, pack, unpack) {
    // Each TypedArray type requires a distinct constructor instance with
    // identical logic, which this produces.

    var ctor;
    ctor = function(buffer$$1, byteOffset, length) {
      var array, sequence, i, s;

      if (!arguments.length || typeof arguments[0] === 'number') {
        // Constructor(unsigned long length)
        this.length = ECMAScript.ToInt32(arguments[0]);
        if (length < 0) throw new RangeError('ArrayBufferView size is not a small enough positive integer');

        this.byteLength = this.length * this.BYTES_PER_ELEMENT;
        this.buffer = new ArrayBuffer(this.byteLength);
        this.byteOffset = 0;
      } else if (typeof arguments[0] === 'object' && arguments[0].constructor === ctor) {
        // Constructor(TypedArray array)
        array = arguments[0];

        this.length = array.length;
        this.byteLength = this.length * this.BYTES_PER_ELEMENT;
        this.buffer = new ArrayBuffer(this.byteLength);
        this.byteOffset = 0;

        for (i = 0; i < this.length; i += 1) {
          this._setter(i, array._getter(i));
        }
      } else if (typeof arguments[0] === 'object' &&
                 !(arguments[0] instanceof ArrayBuffer || ECMAScript.Class(arguments[0]) === 'ArrayBuffer')) {
        // Constructor(sequence<type> array)
        sequence = arguments[0];

        this.length = ECMAScript.ToUint32(sequence.length);
        this.byteLength = this.length * this.BYTES_PER_ELEMENT;
        this.buffer = new ArrayBuffer(this.byteLength);
        this.byteOffset = 0;

        for (i = 0; i < this.length; i += 1) {
          s = sequence[i];
          this._setter(i, Number(s));
        }
      } else if (typeof arguments[0] === 'object' &&
                 (arguments[0] instanceof ArrayBuffer || ECMAScript.Class(arguments[0]) === 'ArrayBuffer')) {
        // Constructor(ArrayBuffer buffer,
        //             optional unsigned long byteOffset, optional unsigned long length)
        this.buffer = buffer$$1;

        this.byteOffset = ECMAScript.ToUint32(byteOffset);
        if (this.byteOffset > this.buffer.byteLength) {
          throw new RangeError("byteOffset out of range");
        }

        if (this.byteOffset % this.BYTES_PER_ELEMENT) {
          // The given byteOffset must be a multiple of the element
          // size of the specific type, otherwise an exception is raised.
          throw new RangeError("ArrayBuffer length minus the byteOffset is not a multiple of the element size.");
        }

        if (arguments.length < 3) {
          this.byteLength = this.buffer.byteLength - this.byteOffset;

          if (this.byteLength % this.BYTES_PER_ELEMENT) {
            throw new RangeError("length of buffer minus byteOffset not a multiple of the element size");
          }
          this.length = this.byteLength / this.BYTES_PER_ELEMENT;
        } else {
          this.length = ECMAScript.ToUint32(length);
          this.byteLength = this.length * this.BYTES_PER_ELEMENT;
        }

        if ((this.byteOffset + this.byteLength) > this.buffer.byteLength) {
          throw new RangeError("byteOffset and length reference an area beyond the end of the buffer");
        }
      } else {
        throw new TypeError("Unexpected argument type(s)");
      }

      this.constructor = ctor;

      configureProperties(this);
      makeArrayAccessors(this);
    };

    ctor.prototype = new ArrayBufferView();
    ctor.prototype.BYTES_PER_ELEMENT = bytesPerElement;
    ctor.prototype._pack = pack;
    ctor.prototype._unpack = unpack;
    ctor.BYTES_PER_ELEMENT = bytesPerElement;

    // getter type (unsigned long index);
    ctor.prototype._getter = function(index) {
      if (arguments.length < 1) throw new SyntaxError("Not enough arguments");

      index = ECMAScript.ToUint32(index);
      if (index >= this.length) {
        return undefined;
      }

      var bytes = [], i, o;
      for (i = 0, o = this.byteOffset + index * this.BYTES_PER_ELEMENT;
           i < this.BYTES_PER_ELEMENT;
           i += 1, o += 1) {
        bytes.push(this.buffer._bytes[o]);
      }
      return this._unpack(bytes);
    };

    // NONSTANDARD: convenience alias for getter: type get(unsigned long index);
    ctor.prototype.get = ctor.prototype._getter;

    // setter void (unsigned long index, type value);
    ctor.prototype._setter = function(index, value) {
      if (arguments.length < 2) throw new SyntaxError("Not enough arguments");

      index = ECMAScript.ToUint32(index);
      if (index >= this.length) {
        return undefined;
      }

      var bytes = this._pack(value), i, o;
      for (i = 0, o = this.byteOffset + index * this.BYTES_PER_ELEMENT;
           i < this.BYTES_PER_ELEMENT;
           i += 1, o += 1) {
        this.buffer._bytes[o] = bytes[i];
      }
    };

    // void set(TypedArray array, optional unsigned long offset);
    // void set(sequence<type> array, optional unsigned long offset);
    ctor.prototype.set = function(index, value) {
      if (arguments.length < 1) throw new SyntaxError("Not enough arguments");
      var array, sequence, offset, len,
          i, s, d,
          byteOffset, byteLength, tmp;

      if (typeof arguments[0] === 'object' && arguments[0].constructor === this.constructor) {
        // void set(TypedArray array, optional unsigned long offset);
        array = arguments[0];
        offset = ECMAScript.ToUint32(arguments[1]);

        if (offset + array.length > this.length) {
          throw new RangeError("Offset plus length of array is out of range");
        }

        byteOffset = this.byteOffset + offset * this.BYTES_PER_ELEMENT;
        byteLength = array.length * this.BYTES_PER_ELEMENT;

        if (array.buffer === this.buffer) {
          tmp = [];
          for (i = 0, s = array.byteOffset; i < byteLength; i += 1, s += 1) {
            tmp[i] = array.buffer._bytes[s];
          }
          for (i = 0, d = byteOffset; i < byteLength; i += 1, d += 1) {
            this.buffer._bytes[d] = tmp[i];
          }
        } else {
          for (i = 0, s = array.byteOffset, d = byteOffset;
               i < byteLength; i += 1, s += 1, d += 1) {
            this.buffer._bytes[d] = array.buffer._bytes[s];
          }
        }
      } else if (typeof arguments[0] === 'object' && typeof arguments[0].length !== 'undefined') {
        // void set(sequence<type> array, optional unsigned long offset);
        sequence = arguments[0];
        len = ECMAScript.ToUint32(sequence.length);
        offset = ECMAScript.ToUint32(arguments[1]);

        if (offset + len > this.length) {
          throw new RangeError("Offset plus length of array is out of range");
        }

        for (i = 0; i < len; i += 1) {
          s = sequence[i];
          this._setter(offset + i, Number(s));
        }
      } else {
        throw new TypeError("Unexpected argument type(s)");
      }
    };

    // TypedArray subarray(long begin, optional long end);
    ctor.prototype.subarray = function(start, end) {
      function clamp(v, min, max) { return v < min ? min : v > max ? max : v; }

      start = ECMAScript.ToInt32(start);
      end = ECMAScript.ToInt32(end);

      if (arguments.length < 1) { start = 0; }
      if (arguments.length < 2) { end = this.length; }

      if (start < 0) { start = this.length + start; }
      if (end < 0) { end = this.length + end; }

      start = clamp(start, 0, this.length);
      end = clamp(end, 0, this.length);

      var len = end - start;
      if (len < 0) {
        len = 0;
      }

      return new this.constructor(
        this.buffer, this.byteOffset + start * this.BYTES_PER_ELEMENT, len);
    };

    return ctor;
  }

  var Int8Array = makeConstructor(1, packI8, unpackI8);
  var Uint8Array = makeConstructor(1, packU8, unpackU8);
  var Uint8ClampedArray = makeConstructor(1, packU8Clamped, unpackU8);
  var Int16Array = makeConstructor(2, packI16, unpackI16);
  var Uint16Array = makeConstructor(2, packU16, unpackU16);
  var Int32Array = makeConstructor(4, packI32, unpackI32);
  var Uint32Array = makeConstructor(4, packU32, unpackU32);
  var Float32Array = makeConstructor(4, packF32, unpackF32);
  var Float64Array = makeConstructor(8, packF64, unpackF64);

  exports.Int8Array = exports.Int8Array || Int8Array;
  exports.Uint8Array = exports.Uint8Array || Uint8Array;
  exports.Uint8ClampedArray = exports.Uint8ClampedArray || Uint8ClampedArray;
  exports.Int16Array = exports.Int16Array || Int16Array;
  exports.Uint16Array = exports.Uint16Array || Uint16Array;
  exports.Int32Array = exports.Int32Array || Int32Array;
  exports.Uint32Array = exports.Uint32Array || Uint32Array;
  exports.Float32Array = exports.Float32Array || Float32Array;
  exports.Float64Array = exports.Float64Array || Float64Array;
}());

//
// 6 The DataView View Type
//

(function() {
  function r(array, index) {
    return ECMAScript.IsCallable(array.get) ? array.get(index) : array[index];
  }

  var IS_BIG_ENDIAN = (function() {
    var u16array = new(exports.Uint16Array)([0x1234]),
        u8array = new(exports.Uint8Array)(u16array.buffer);
    return r(u8array, 0) === 0x12;
  }());

  // Constructor(ArrayBuffer buffer,
  //             optional unsigned long byteOffset,
  //             optional unsigned long byteLength)
  /** @constructor */
  var DataView = function DataView(buffer$$1, byteOffset, byteLength) {
    if (arguments.length === 0) {
      buffer$$1 = new exports.ArrayBuffer(0);
    } else if (!(buffer$$1 instanceof exports.ArrayBuffer || ECMAScript.Class(buffer$$1) === 'ArrayBuffer')) {
      throw new TypeError("TypeError");
    }

    this.buffer = buffer$$1 || new exports.ArrayBuffer(0);

    this.byteOffset = ECMAScript.ToUint32(byteOffset);
    if (this.byteOffset > this.buffer.byteLength) {
      throw new RangeError("byteOffset out of range");
    }

    if (arguments.length < 3) {
      this.byteLength = this.buffer.byteLength - this.byteOffset;
    } else {
      this.byteLength = ECMAScript.ToUint32(byteLength);
    }

    if ((this.byteOffset + this.byteLength) > this.buffer.byteLength) {
      throw new RangeError("byteOffset and length reference an area beyond the end of the buffer");
    }

    configureProperties(this);
  };

  function makeGetter(arrayType) {
    return function(byteOffset, littleEndian) {

      byteOffset = ECMAScript.ToUint32(byteOffset);

      if (byteOffset + arrayType.BYTES_PER_ELEMENT > this.byteLength) {
        throw new RangeError("Array index out of range");
      }
      byteOffset += this.byteOffset;

      var uint8Array = new exports.Uint8Array(this.buffer, byteOffset, arrayType.BYTES_PER_ELEMENT),
          bytes = [], i;
      for (i = 0; i < arrayType.BYTES_PER_ELEMENT; i += 1) {
        bytes.push(r(uint8Array, i));
      }

      if (Boolean(littleEndian) === Boolean(IS_BIG_ENDIAN)) {
        bytes.reverse();
      }

      return r(new arrayType(new exports.Uint8Array(bytes).buffer), 0);
    };
  }

  DataView.prototype.getUint8 = makeGetter(exports.Uint8Array);
  DataView.prototype.getInt8 = makeGetter(exports.Int8Array);
  DataView.prototype.getUint16 = makeGetter(exports.Uint16Array);
  DataView.prototype.getInt16 = makeGetter(exports.Int16Array);
  DataView.prototype.getUint32 = makeGetter(exports.Uint32Array);
  DataView.prototype.getInt32 = makeGetter(exports.Int32Array);
  DataView.prototype.getFloat32 = makeGetter(exports.Float32Array);
  DataView.prototype.getFloat64 = makeGetter(exports.Float64Array);

  function makeSetter(arrayType) {
    return function(byteOffset, value, littleEndian) {

      byteOffset = ECMAScript.ToUint32(byteOffset);
      if (byteOffset + arrayType.BYTES_PER_ELEMENT > this.byteLength) {
        throw new RangeError("Array index out of range");
      }

      // Get bytes
      var typeArray = new arrayType([value]),
          byteArray = new exports.Uint8Array(typeArray.buffer),
          bytes = [], i, byteView;

      for (i = 0; i < arrayType.BYTES_PER_ELEMENT; i += 1) {
        bytes.push(r(byteArray, i));
      }

      // Flip if necessary
      if (Boolean(littleEndian) === Boolean(IS_BIG_ENDIAN)) {
        bytes.reverse();
      }

      // Write them
      byteView = new exports.Uint8Array(this.buffer, byteOffset, arrayType.BYTES_PER_ELEMENT);
      byteView.set(bytes);
    };
  }

  DataView.prototype.setUint8 = makeSetter(exports.Uint8Array);
  DataView.prototype.setInt8 = makeSetter(exports.Int8Array);
  DataView.prototype.setUint16 = makeSetter(exports.Uint16Array);
  DataView.prototype.setInt16 = makeSetter(exports.Int16Array);
  DataView.prototype.setUint32 = makeSetter(exports.Uint32Array);
  DataView.prototype.setInt32 = makeSetter(exports.Int32Array);
  DataView.prototype.setFloat32 = makeSetter(exports.Float32Array);
  DataView.prototype.setFloat64 = makeSetter(exports.Float64Array);

  exports.DataView = exports.DataView || DataView;

}());
});
var typedarray_1 = typedarray.ArrayBuffer;
var typedarray_2 = typedarray.Int8Array;
var typedarray_3 = typedarray.Uint8Array;
var typedarray_4 = typedarray.Uint8ClampedArray;
var typedarray_5 = typedarray.Int16Array;
var typedarray_6 = typedarray.Uint16Array;
var typedarray_7 = typedarray.Int32Array;
var typedarray_8 = typedarray.Uint32Array;
var typedarray_9 = typedarray.Float32Array;
var typedarray_10 = typedarray.Float64Array;
var typedarray_11 = typedarray.DataView;

var Writable = readableStream.Writable;



if (typeof Uint8Array === 'undefined') {
  var U8 = typedarray.Uint8Array;
} else {
  var U8 = Uint8Array;
}

function ConcatStream(opts, cb) {
  if (!(this instanceof ConcatStream)) return new ConcatStream(opts, cb)

  if (typeof opts === 'function') {
    cb = opts;
    opts = {};
  }
  if (!opts) opts = {};

  var encoding = opts.encoding;
  var shouldInferEncoding = false;

  if (!encoding) {
    shouldInferEncoding = true;
  } else {
    encoding =  String(encoding).toLowerCase();
    if (encoding === 'u8' || encoding === 'uint8') {
      encoding = 'uint8array';
    }
  }

  Writable.call(this, { objectMode: true });

  this.encoding = encoding;
  this.shouldInferEncoding = shouldInferEncoding;

  if (cb) this.on('finish', function () { cb(this.getBody()); });
  this.body = [];
}

var concatStream = ConcatStream;
inherits(ConcatStream, Writable);

ConcatStream.prototype._write = function(chunk, enc, next) {
  this.body.push(chunk);
  next();
};

ConcatStream.prototype.inferEncoding = function (buff) {
  var firstBuffer = buff === undefined ? this.body[0] : buff;
  if (Buffer.isBuffer(firstBuffer)) return 'buffer'
  if (typeof Uint8Array !== 'undefined' && firstBuffer instanceof Uint8Array) return 'uint8array'
  if (Array.isArray(firstBuffer)) return 'array'
  if (typeof firstBuffer === 'string') return 'string'
  if (Object.prototype.toString.call(firstBuffer) === "[object Object]") return 'object'
  return 'buffer'
};

ConcatStream.prototype.getBody = function () {
  if (!this.encoding && this.body.length === 0) return []
  if (this.shouldInferEncoding) this.encoding = this.inferEncoding();
  if (this.encoding === 'array') return arrayConcat(this.body)
  if (this.encoding === 'string') return stringConcat(this.body)
  if (this.encoding === 'buffer') return bufferConcat(this.body)
  if (this.encoding === 'uint8array') return u8Concat(this.body)
  return this.body
};

function isArrayish (arr) {
  return /Array\]$/.test(Object.prototype.toString.call(arr))
}

function isBufferish (p) {
  return typeof p === 'string' || isArrayish(p) || (p && typeof p.subarray === 'function')
}

function stringConcat (parts) {
  var strings = [];
  for (var i = 0; i < parts.length; i++) {
    var p = parts[i];
    if (typeof p === 'string') {
      strings.push(p);
    } else if (Buffer.isBuffer(p)) {
      strings.push(p);
    } else if (isBufferish(p)) {
      strings.push(bufferFrom_1(p));
    } else {
      strings.push(bufferFrom_1(String(p)));
    }
  }
  if (Buffer.isBuffer(parts[0])) {
    strings = Buffer.concat(strings);
    strings = strings.toString('utf8');
  } else {
    strings = strings.join('');
  }
  return strings
}

function bufferConcat (parts) {
  var bufs = [];
  for (var i = 0; i < parts.length; i++) {
    var p = parts[i];
    if (Buffer.isBuffer(p)) {
      bufs.push(p);
    } else if (isBufferish(p)) {
      bufs.push(bufferFrom_1(p));
    } else {
      bufs.push(bufferFrom_1(String(p)));
    }
  }
  return Buffer.concat(bufs)
}

function arrayConcat (parts) {
  var res = [];
  for (var i = 0; i < parts.length; i++) {
    res.push.apply(res, parts[i]);
  }
  return res
}

function u8Concat (parts) {
  var len = 0;
  for (var i = 0; i < parts.length; i++) {
    if (typeof parts[i] === 'string') {
      parts[i] = bufferFrom_1(parts[i]);
    }
    len += parts[i].length;
  }
  var u8 = new U8(len);
  for (var i = 0, offset = 0; i < parts.length; i++) {
    var part = parts[i];
    for (var j = 0; j < part.length; j++) {
      u8[offset++] = part[j];
    }
  }
  return u8
}

var Readable = readableStream.Readable;


var from2_1 = from2;

from2.ctor = ctor$2;
from2.obj = obj$2;

var Proto = ctor$2();

function toFunction(list) {
  list = list.slice();
  return function (_, cb) {
    var err = null;
    var item = list.length ? list.shift() : null;
    if (item instanceof Error) {
      err = item;
      item = null;
    }

    cb(err, item);
  }
}

function from2(opts, read) {
  if (typeof opts !== 'object' || Array.isArray(opts)) {
    read = opts;
    opts = {};
  }

  var rs = new Proto(opts);
  rs._from = Array.isArray(read) ? toFunction(read) : (read || noop$4);
  return rs
}

function ctor$2(opts, read) {
  if (typeof opts === 'function') {
    read = opts;
    opts = {};
  }

  opts = defaults(opts);

  inherits(Class, Readable);
  function Class(override) {
    if (!(this instanceof Class)) return new Class(override)
    this._reading = false;
    this._callback = check;
    this.destroyed = false;
    Readable.call(this, override || opts);

    var self = this;
    var hwm = this._readableState.highWaterMark;

    function check(err, data) {
      if (self.destroyed) return
      if (err) return self.destroy(err)
      if (data === null) return self.push(null)
      self._reading = false;
      if (self.push(data)) self._read(hwm);
    }
  }

  Class.prototype._from = read || noop$4;
  Class.prototype._read = function(size) {
    if (this._reading || this.destroyed) return
    this._reading = true;
    this._from(size, this._callback);
  };

  Class.prototype.destroy = function(err) {
    if (this.destroyed) return
    this.destroyed = true;

    var self = this;
    process.nextTick(function() {
      if (err) self.emit('error', err);
      self.emit('close');
    });
  };

  return Class
}

function obj$2(opts, read) {
  if (typeof opts === 'function' || Array.isArray(opts)) {
    read = opts;
    opts = {};
  }

  opts = defaults(opts);
  opts.objectMode = true;
  opts.highWaterMark = 16;

  return from2(opts, read)
}

function noop$4 () {}

function defaults(opts) {
  opts = opts || {};
  return opts
}

var SIGNAL_FLUSH$1 =(Buffer.from && Buffer.from !== Uint8Array.from)
  ? Buffer.from([0])
  : new Buffer([0]);

var flushWriteStream = WriteStream;

function WriteStream (opts, write, flush) {
  if (!(this instanceof WriteStream)) return new WriteStream(opts, write, flush)

  if (typeof opts === 'function') {
    flush = write;
    write = opts;
    opts = {};
  }

  readableStream.Writable.call(this, opts);

  this.destroyed = false;
  this._worker = write || null;
  this._flush = flush || null;
}

inherits(WriteStream, readableStream.Writable);

WriteStream.obj = function (opts, worker, flush) {
  if (typeof opts === 'function') return WriteStream.obj(null, opts, worker)
  if (!opts) opts = {};
  opts.objectMode = true;
  return new WriteStream(opts, worker, flush)
};

WriteStream.prototype._write = function (data, enc, cb) {
  if (SIGNAL_FLUSH$1 === data) this._flush(cb);
  else this._worker(data, enc, cb);
};

WriteStream.prototype.end = function (data, enc, cb) {
  if (!this._flush) return readableStream.Writable.prototype.end.apply(this, arguments)
  if (typeof data === 'function') return this.end(null, null, data)
  if (typeof enc === 'function') return this.end(data, null, enc)
  if (data) this.write(data);
  if (!this._writableState.ending) this.write(SIGNAL_FLUSH$1);
  return readableStream.Writable.prototype.end.call(this, cb)
};

WriteStream.prototype.destroy = function (err) {
  if (this.destroyed) return
  this.destroyed = true;
  if (err) this.emit('error', err);
  this.emit('close');
};

var ensureTwoPower = function(n) {
	if (n && !(n & (n - 1))) return n;
	var p = 1;
	while (p < n) p <<= 1;
	return p;
};

var Cyclist = function(size) {
	if (!(this instanceof Cyclist)) return new Cyclist(size);
	size = ensureTwoPower(size);
	this.mask = size-1;
	this.size = size;
	this.values = new Array(size);
};

Cyclist.prototype.put = function(index, val) {
	var pos = index & this.mask;
	this.values[pos] = val;
	return pos;
};

Cyclist.prototype.get = function(index) {
	return this.values[index & this.mask];
};

Cyclist.prototype.del = function(index) {
	var pos = index & this.mask;
	var val = this.values[pos];
	this.values[pos] = undefined;
	return val;
};

var cyclist = Cyclist;

var Transform$1 = readableStream.Transform;




var ParallelTransform = function(maxParallel, opts, ontransform) {
	if (!(this instanceof ParallelTransform)) return new ParallelTransform(maxParallel, opts, ontransform);

	if (typeof maxParallel === 'function') {
		ontransform = maxParallel;
		opts = null;
		maxParallel = 1;
	}
	if (typeof opts === 'function') {
		ontransform = opts;
		opts = null;
	}

	if (!opts) opts = {};
	if (!opts.highWaterMark) opts.highWaterMark = Math.max(maxParallel, 16);
	if (opts.objectMode !== false) opts.objectMode = true;

	Transform$1.call(this, opts);

	this._maxParallel = maxParallel;
	this._ontransform = ontransform;
	this._destroyed = false;
	this._flushed = false;
	this._ordered = opts.ordered !== false;
	this._buffer = this._ordered ? cyclist(maxParallel) : [];
	this._top = 0;
	this._bottom = 0;
	this._ondrain = null;
};

inherits(ParallelTransform, Transform$1);

ParallelTransform.prototype.destroy = function() {
	if (this._destroyed) return;
	this._destroyed = true;
	this.emit('close');
};

ParallelTransform.prototype._transform = function(chunk, enc, callback) {
	var self = this;
	var pos = this._top++;

	this._ontransform(chunk, function(err, data) {
		if (self._destroyed) return;
		if (err) {
			self.emit('error', err);
			self.push(null);
			self.destroy();
			return;
		}
		if (self._ordered) {
			self._buffer.put(pos, (data === undefined || data === null) ? null : data);
		}
		else {
			self._buffer.push(data);
		}
		self._drain();
	});

	if (this._top - this._bottom < this._maxParallel) return callback();
	this._ondrain = callback;
};

ParallelTransform.prototype._flush = function(callback) {
	this._flushed = true;
	this._ondrain = callback;
	this._drain();
};

ParallelTransform.prototype._drain = function() {
	if (this._ordered) {
		while (this._buffer.get(this._bottom) !== undefined) {
			var data = this._buffer.del(this._bottom++);
			if (data === null) continue;
			this.push(data);
		}
	}
	else {
		while (this._buffer.length > 0) {
			var data =  this._buffer.pop();
			this._bottom++;
			if (data === null) continue;
			this.push(data);
		}
	}


	if (!this._drained() || !this._ondrain) return;

	var ondrain = this._ondrain;
	this._ondrain = null;
	ondrain();
};

ParallelTransform.prototype._drained = function() {
	var diff = this._top - this._bottom;
	return this._flushed ? !diff : diff < this._maxParallel;
};

var parallelTransform = ParallelTransform;

var pipe$2 = pump_1;
var each$1 = streamEach;
var pipeline = pumpify;
var duplex = duplexify;
var through = through2_1;
var concat = concatStream;
var finished = endOfStream;
var from_1 = from2_1;
var to = flushWriteStream;
var parallel = parallelTransform;

var mississippi = {
	pipe: pipe$2,
	each: each$1,
	pipeline: pipeline,
	duplex: duplex,
	through: through,
	concat: concat,
	finished: finished,
	from: from_1,
	to: to,
	parallel: parallel
};

var githubParseLink = function (link) {
	if (typeof link !== 'string') {
		return {};
	}

	return link.split(', ').reduce(function (result, part) {
		var match = part.match('<(.*?)>; rel="(.*?)"');

		if (match && match.length === 3) {
			result[match[2]] = match[1];
		}

		return result;
	}, {});
};

const wrap = fn => new Promise(resolve => {
	resolve(fn());
});

var pDoWhilst = (action, condition) => wrap(function loop() {
	return wrap(action).then(result => {
		if (condition(result)) {
			return loop();
		}
	});
});

var name = "get-deno";
var version = "1.1.1";
var description = "deno installation script for npx";
var bin = "cli.compact.js";
var files = [
	"cli.compact.js"
];
var scripts = {
	lint: "eslint .",
	test: "tape test.js | tap-spec",
	build: "rollup -c rollup.config.js",
	prepublishOnly: "npm run build",
	release: "np"
};
var config = {
	repo: "denoland/deno",
	artifacts: {
		win32: "deno_win_x64.zip",
		darwin: "deno_osx_x64.gz",
		linux: "deno_linux_x64.gz"
	},
	umask: 755
};
var keywords = [
	"deno",
	"download",
	"install",
	"installer"
];
var repository = {
	type: "git",
	url: "git://github.com/vladimyr/get-deno.git"
};
var author = {
	email: "d.vladimyr+dev@gmail.com",
	name: "Dario Vladovic",
	url: "https://github.com/vladimyr"
};
var license = "MIT";
var bugs = {
	url: "https://github.com/vladimyr/get-deno/issues"
};
var homepage = "https://github.com/vladimyr/get-deno";
var dependencies = {
};
var devDependencies = {
	debug: "^4.1.1",
	eslint: "^5.12.0",
	"eslint-config-semistandard": "^13.0.0",
	"eslint-config-standard": "^12.0.0",
	"eslint-plugin-import": "^2.14.0",
	"eslint-plugin-node": "^8.0.1",
	"eslint-plugin-promise": "^4.0.1",
	"eslint-plugin-standard": "^4.0.0",
	"exit-hook": "^2.0.0",
	gauge: "^2.7.4",
	"gh-got": "^8.1.0",
	"github-parse-link": "^1.1.1",
	kleur: "^3.0.1",
	"make-dir": "^1.3.0",
	minimist: "^1.2.0",
	"minimist-options": "^3.0.2",
	mississippi: "^3.0.0",
	ms: "^2.1.1",
	ora: "^3.0.0",
	"p-do-whilst": "^0.1.0",
	"pretty-bytes": "^5.1.0",
	rollup: "^1.0.1",
	"rollup-plugin-commonjs": "^9.2.0",
	"rollup-plugin-json": "^3.1.0",
	"rollup-plugin-node-resolve": "^4.0.0",
	"rollup-plugin-postprocess": "^1.0.2",
	"rollup-plugin-re": "^1.0.7",
	"rollup-plugin-visualizer": "^0.9.2",
	semver: "^5.6.0",
	"tap-spec": "^5.0.0",
	tape: "^4.9.2",
	yauzl: "^2.10.0"
};
var _package = {
	name: name,
	version: version,
	description: description,
	bin: bin,
	files: files,
	scripts: scripts,
	config: config,
	keywords: keywords,
	repository: repository,
	author: author,
	license: license,
	bugs: bugs,
	homepage: homepage,
	dependencies: dependencies,
	devDependencies: devDependencies
};

var _package$1 = /*#__PURE__*/Object.freeze({
	name: name,
	version: version,
	description: description,
	bin: bin,
	files: files,
	scripts: scripts,
	config: config,
	keywords: keywords,
	repository: repository,
	author: author,
	license: license,
	bugs: bugs,
	homepage: homepage,
	dependencies: dependencies,
	devDependencies: devDependencies,
	default: _package
});

var pend = Pend;

function Pend() {
  this.pending = 0;
  this.max = Infinity;
  this.listeners = [];
  this.waiting = [];
  this.error = null;
}

Pend.prototype.go = function(fn) {
  if (this.pending < this.max) {
    pendGo(this, fn);
  } else {
    this.waiting.push(fn);
  }
};

Pend.prototype.wait = function(cb) {
  if (this.pending === 0) {
    cb(this.error);
  } else {
    this.listeners.push(cb);
  }
};

Pend.prototype.hold = function() {
  return pendHold(this);
};

function pendHold(self) {
  self.pending += 1;
  var called = false;
  return onCb;
  function onCb(err) {
    if (called) throw new Error("callback called twice");
    called = true;
    self.error = self.error || err;
    self.pending -= 1;
    if (self.waiting.length > 0 && self.pending < self.max) {
      pendGo(self, self.waiting.shift());
    } else if (self.pending === 0) {
      var listeners = self.listeners;
      self.listeners = [];
      listeners.forEach(cbListener);
    }
  }
  function cbListener(listener) {
    listener(self.error);
  }
}

function pendGo(self, fn) {
  fn(pendHold(self));
}

var Readable$1 = stream.Readable;
var Writable$1 = stream.Writable;
var PassThrough = stream.PassThrough;

var EventEmitter = events.EventEmitter;

var createFromBuffer_1 = createFromBuffer;
var createFromFd_1 = createFromFd;
var BufferSlicer_1 = BufferSlicer;
var FdSlicer_1 = FdSlicer;

util.inherits(FdSlicer, EventEmitter);
function FdSlicer(fd, options) {
  options = options || {};
  EventEmitter.call(this);

  this.fd = fd;
  this.pend = new pend();
  this.pend.max = 1;
  this.refCount = 0;
  this.autoClose = !!options.autoClose;
}

FdSlicer.prototype.read = function(buffer$$1, offset, length, position, callback) {
  var self = this;
  self.pend.go(function(cb) {
    fs.read(self.fd, buffer$$1, offset, length, position, function(err, bytesRead, buffer$$1) {
      cb();
      callback(err, bytesRead, buffer$$1);
    });
  });
};

FdSlicer.prototype.write = function(buffer$$1, offset, length, position, callback) {
  var self = this;
  self.pend.go(function(cb) {
    fs.write(self.fd, buffer$$1, offset, length, position, function(err, written, buffer$$1) {
      cb();
      callback(err, written, buffer$$1);
    });
  });
};

FdSlicer.prototype.createReadStream = function(options) {
  return new ReadStream(this, options);
};

FdSlicer.prototype.createWriteStream = function(options) {
  return new WriteStream$1(this, options);
};

FdSlicer.prototype.ref = function() {
  this.refCount += 1;
};

FdSlicer.prototype.unref = function() {
  var self = this;
  self.refCount -= 1;

  if (self.refCount > 0) return;
  if (self.refCount < 0) throw new Error("invalid unref");

  if (self.autoClose) {
    fs.close(self.fd, onCloseDone);
  }

  function onCloseDone(err) {
    if (err) {
      self.emit('error', err);
    } else {
      self.emit('close');
    }
  }
};

util.inherits(ReadStream, Readable$1);
function ReadStream(context, options) {
  options = options || {};
  Readable$1.call(this, options);

  this.context = context;
  this.context.ref();

  this.start = options.start || 0;
  this.endOffset = options.end;
  this.pos = this.start;
  this.destroyed = false;
}

ReadStream.prototype._read = function(n) {
  var self = this;
  if (self.destroyed) return;

  var toRead = Math.min(self._readableState.highWaterMark, n);
  if (self.endOffset != null) {
    toRead = Math.min(toRead, self.endOffset - self.pos);
  }
  if (toRead <= 0) {
    self.destroyed = true;
    self.push(null);
    self.context.unref();
    return;
  }
  self.context.pend.go(function(cb) {
    if (self.destroyed) return cb();
    var buffer$$1 = new Buffer(toRead);
    fs.read(self.context.fd, buffer$$1, 0, toRead, self.pos, function(err, bytesRead) {
      if (err) {
        self.destroy(err);
      } else if (bytesRead === 0) {
        self.destroyed = true;
        self.push(null);
        self.context.unref();
      } else {
        self.pos += bytesRead;
        self.push(buffer$$1.slice(0, bytesRead));
      }
      cb();
    });
  });
};

ReadStream.prototype.destroy = function(err) {
  if (this.destroyed) return;
  err = err || new Error("stream destroyed");
  this.destroyed = true;
  this.emit('error', err);
  this.context.unref();
};

util.inherits(WriteStream$1, Writable$1);
function WriteStream$1(context, options) {
  options = options || {};
  Writable$1.call(this, options);

  this.context = context;
  this.context.ref();

  this.start = options.start || 0;
  this.endOffset = (options.end == null) ? Infinity : +options.end;
  this.bytesWritten = 0;
  this.pos = this.start;
  this.destroyed = false;

  this.on('finish', this.destroy.bind(this));
}

WriteStream$1.prototype._write = function(buffer$$1, encoding, callback) {
  var self = this;
  if (self.destroyed) return;

  if (self.pos + buffer$$1.length > self.endOffset) {
    var err = new Error("maximum file length exceeded");
    err.code = 'ETOOBIG';
    self.destroy();
    callback(err);
    return;
  }
  self.context.pend.go(function(cb) {
    if (self.destroyed) return cb();
    fs.write(self.context.fd, buffer$$1, 0, buffer$$1.length, self.pos, function(err, bytes) {
      if (err) {
        self.destroy();
        cb();
        callback(err);
      } else {
        self.bytesWritten += bytes;
        self.pos += bytes;
        self.emit('progress');
        cb();
        callback();
      }
    });
  });
};

WriteStream$1.prototype.destroy = function() {
  if (this.destroyed) return;
  this.destroyed = true;
  this.context.unref();
};

util.inherits(BufferSlicer, EventEmitter);
function BufferSlicer(buffer$$1, options) {
  EventEmitter.call(this);

  options = options || {};
  this.refCount = 0;
  this.buffer = buffer$$1;
  this.maxChunkSize = options.maxChunkSize || Number.MAX_SAFE_INTEGER;
}

BufferSlicer.prototype.read = function(buffer$$1, offset, length, position, callback) {
  var end = position + length;
  var delta = end - this.buffer.length;
  var written = (delta > 0) ? delta : length;
  this.buffer.copy(buffer$$1, offset, position, end);
  setImmediate(function() {
    callback(null, written);
  });
};

BufferSlicer.prototype.write = function(buffer$$1, offset, length, position, callback) {
  buffer$$1.copy(this.buffer, position, offset, offset + length);
  setImmediate(function() {
    callback(null, length, buffer$$1);
  });
};

BufferSlicer.prototype.createReadStream = function(options) {
  options = options || {};
  var readStream = new PassThrough(options);
  readStream.destroyed = false;
  readStream.start = options.start || 0;
  readStream.endOffset = options.end;
  // by the time this function returns, we'll be done.
  readStream.pos = readStream.endOffset || this.buffer.length;

  // respect the maxChunkSize option to slice up the chunk into smaller pieces.
  var entireSlice = this.buffer.slice(readStream.start, readStream.pos);
  var offset = 0;
  while (true) {
    var nextOffset = offset + this.maxChunkSize;
    if (nextOffset >= entireSlice.length) {
      // last chunk
      if (offset < entireSlice.length) {
        readStream.write(entireSlice.slice(offset, entireSlice.length));
      }
      break;
    }
    readStream.write(entireSlice.slice(offset, nextOffset));
    offset = nextOffset;
  }

  readStream.end();
  readStream.destroy = function() {
    readStream.destroyed = true;
  };
  return readStream;
};

BufferSlicer.prototype.createWriteStream = function(options) {
  var bufferSlicer = this;
  options = options || {};
  var writeStream = new Writable$1(options);
  writeStream.start = options.start || 0;
  writeStream.endOffset = (options.end == null) ? this.buffer.length : +options.end;
  writeStream.bytesWritten = 0;
  writeStream.pos = writeStream.start;
  writeStream.destroyed = false;
  writeStream._write = function(buffer$$1, encoding, callback) {
    if (writeStream.destroyed) return;

    var end = writeStream.pos + buffer$$1.length;
    if (end > writeStream.endOffset) {
      var err = new Error("maximum file length exceeded");
      err.code = 'ETOOBIG';
      writeStream.destroyed = true;
      callback(err);
      return;
    }
    buffer$$1.copy(bufferSlicer.buffer, writeStream.pos, 0, buffer$$1.length);

    writeStream.bytesWritten += buffer$$1.length;
    writeStream.pos = end;
    writeStream.emit('progress');
    callback();
  };
  writeStream.destroy = function() {
    writeStream.destroyed = true;
  };
  return writeStream;
};

BufferSlicer.prototype.ref = function() {
  this.refCount += 1;
};

BufferSlicer.prototype.unref = function() {
  this.refCount -= 1;

  if (this.refCount < 0) {
    throw new Error("invalid unref");
  }
};

function createFromBuffer(buffer$$1, options) {
  return new BufferSlicer(buffer$$1, options);
}

function createFromFd(fd, options) {
  return new FdSlicer(fd, options);
}

var fdSlicer = {
	createFromBuffer: createFromBuffer_1,
	createFromFd: createFromFd_1,
	BufferSlicer: BufferSlicer_1,
	FdSlicer: FdSlicer_1
};

var Buffer$1 = buffer.Buffer;

var CRC_TABLE = [
  0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
  0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
  0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
  0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
  0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
  0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
  0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
  0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
  0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
  0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
  0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
  0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
  0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
  0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
  0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
  0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
  0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
  0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
  0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
  0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
  0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
  0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
  0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
  0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
  0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
  0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
  0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
  0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
  0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
  0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
  0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
  0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
  0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
  0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
  0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
  0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
  0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
  0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
  0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
  0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
  0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
  0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
  0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
  0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
  0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
  0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
  0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
  0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
  0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
  0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
  0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
  0x2d02ef8d
];

if (typeof Int32Array !== 'undefined') {
  CRC_TABLE = new Int32Array(CRC_TABLE);
}

function ensureBuffer(input) {
  if (Buffer$1.isBuffer(input)) {
    return input;
  }

  var hasNewBufferAPI =
      typeof Buffer$1.alloc === "function" &&
      typeof Buffer$1.from === "function";

  if (typeof input === "number") {
    return hasNewBufferAPI ? Buffer$1.alloc(input) : new Buffer$1(input);
  }
  else if (typeof input === "string") {
    return hasNewBufferAPI ? Buffer$1.from(input) : new Buffer$1(input);
  }
  else {
    throw new Error("input must be buffer, number, or string, received " +
                    typeof input);
  }
}

function bufferizeInt(num) {
  var tmp = ensureBuffer(4);
  tmp.writeInt32BE(num, 0);
  return tmp;
}

function _crc32(buf, previous) {
  buf = ensureBuffer(buf);
  if (Buffer$1.isBuffer(previous)) {
    previous = previous.readUInt32BE(0);
  }
  var crc = ~~previous ^ -1;
  for (var n = 0; n < buf.length; n++) {
    crc = CRC_TABLE[(crc ^ buf[n]) & 0xff] ^ (crc >>> 8);
  }
  return (crc ^ -1);
}

function crc32() {
  return bufferizeInt(_crc32.apply(null, arguments));
}
crc32.signed = function () {
  return _crc32.apply(null, arguments);
};
crc32.unsigned = function () {
  return _crc32.apply(null, arguments) >>> 0;
};

var bufferCrc32 = crc32;

var EventEmitter$1 = events.EventEmitter;
var Transform$2 = stream.Transform;
var PassThrough$1 = stream.PassThrough;
var Writable$2 = stream.Writable;

var open_1 = open;
var fromFd_1 = fromFd;
var fromBuffer_1 = fromBuffer;
var fromRandomAccessReader_1 = fromRandomAccessReader;
var dosDateTimeToDate_1 = dosDateTimeToDate;
var validateFileName_1 = validateFileName;
var ZipFile_1 = ZipFile;
var Entry_1 = Entry;
var RandomAccessReader_1 = RandomAccessReader;

function open(path$$1, options, callback) {
  if (typeof options === "function") {
    callback = options;
    options = null;
  }
  if (options == null) options = {};
  if (options.autoClose == null) options.autoClose = true;
  if (options.lazyEntries == null) options.lazyEntries = false;
  if (options.decodeStrings == null) options.decodeStrings = true;
  if (options.validateEntrySizes == null) options.validateEntrySizes = true;
  if (options.strictFileNames == null) options.strictFileNames = false;
  if (callback == null) callback = defaultCallback;
  fs.open(path$$1, "r", function(err, fd) {
    if (err) return callback(err);
    fromFd(fd, options, function(err, zipfile) {
      if (err) fs.close(fd, defaultCallback);
      callback(err, zipfile);
    });
  });
}

function fromFd(fd, options, callback) {
  if (typeof options === "function") {
    callback = options;
    options = null;
  }
  if (options == null) options = {};
  if (options.autoClose == null) options.autoClose = false;
  if (options.lazyEntries == null) options.lazyEntries = false;
  if (options.decodeStrings == null) options.decodeStrings = true;
  if (options.validateEntrySizes == null) options.validateEntrySizes = true;
  if (options.strictFileNames == null) options.strictFileNames = false;
  if (callback == null) callback = defaultCallback;
  fs.fstat(fd, function(err, stats) {
    if (err) return callback(err);
    var reader = fdSlicer.createFromFd(fd, {autoClose: true});
    fromRandomAccessReader(reader, stats.size, options, callback);
  });
}

function fromBuffer(buffer$$1, options, callback) {
  if (typeof options === "function") {
    callback = options;
    options = null;
  }
  if (options == null) options = {};
  options.autoClose = false;
  if (options.lazyEntries == null) options.lazyEntries = false;
  if (options.decodeStrings == null) options.decodeStrings = true;
  if (options.validateEntrySizes == null) options.validateEntrySizes = true;
  if (options.strictFileNames == null) options.strictFileNames = false;
  // limit the max chunk size. see https://github.com/thejoshwolfe/yauzl/issues/87
  var reader = fdSlicer.createFromBuffer(buffer$$1, {maxChunkSize: 0x10000});
  fromRandomAccessReader(reader, buffer$$1.length, options, callback);
}

function fromRandomAccessReader(reader, totalSize, options, callback) {
  if (typeof options === "function") {
    callback = options;
    options = null;
  }
  if (options == null) options = {};
  if (options.autoClose == null) options.autoClose = true;
  if (options.lazyEntries == null) options.lazyEntries = false;
  if (options.decodeStrings == null) options.decodeStrings = true;
  var decodeStrings = !!options.decodeStrings;
  if (options.validateEntrySizes == null) options.validateEntrySizes = true;
  if (options.strictFileNames == null) options.strictFileNames = false;
  if (callback == null) callback = defaultCallback;
  if (typeof totalSize !== "number") throw new Error("expected totalSize parameter to be a number");
  if (totalSize > Number.MAX_SAFE_INTEGER) {
    throw new Error("zip file too large. only file sizes up to 2^52 are supported due to JavaScript's Number type being an IEEE 754 double.");
  }

  // the matching unref() call is in zipfile.close()
  reader.ref();

  // eocdr means End of Central Directory Record.
  // search backwards for the eocdr signature.
  // the last field of the eocdr is a variable-length comment.
  // the comment size is encoded in a 2-byte field in the eocdr, which we can't find without trudging backwards through the comment to find it.
  // as a consequence of this design decision, it's possible to have ambiguous zip file metadata if a coherent eocdr was in the comment.
  // we search backwards for a eocdr signature, and hope that whoever made the zip file was smart enough to forbid the eocdr signature in the comment.
  var eocdrWithoutCommentSize = 22;
  var maxCommentSize = 0xffff; // 2-byte size
  var bufferSize = Math.min(eocdrWithoutCommentSize + maxCommentSize, totalSize);
  var buffer$$1 = newBuffer(bufferSize);
  var bufferReadStart = totalSize - buffer$$1.length;
  readAndAssertNoEof(reader, buffer$$1, 0, bufferSize, bufferReadStart, function(err) {
    if (err) return callback(err);
    for (var i = bufferSize - eocdrWithoutCommentSize; i >= 0; i -= 1) {
      if (buffer$$1.readUInt32LE(i) !== 0x06054b50) continue;
      // found eocdr
      var eocdrBuffer = buffer$$1.slice(i);

      // 0 - End of central directory signature = 0x06054b50
      // 4 - Number of this disk
      var diskNumber = eocdrBuffer.readUInt16LE(4);
      if (diskNumber !== 0) {
        return callback(new Error("multi-disk zip files are not supported: found disk number: " + diskNumber));
      }
      // 6 - Disk where central directory starts
      // 8 - Number of central directory records on this disk
      // 10 - Total number of central directory records
      var entryCount = eocdrBuffer.readUInt16LE(10);
      // 12 - Size of central directory (bytes)
      // 16 - Offset of start of central directory, relative to start of archive
      var centralDirectoryOffset = eocdrBuffer.readUInt32LE(16);
      // 20 - Comment length
      var commentLength = eocdrBuffer.readUInt16LE(20);
      var expectedCommentLength = eocdrBuffer.length - eocdrWithoutCommentSize;
      if (commentLength !== expectedCommentLength) {
        return callback(new Error("invalid comment length. expected: " + expectedCommentLength + ". found: " + commentLength));
      }
      // 22 - Comment
      // the encoding is always cp437.
      var comment = decodeStrings ? decodeBuffer(eocdrBuffer, 22, eocdrBuffer.length, false)
                                  : eocdrBuffer.slice(22);

      if (!(entryCount === 0xffff || centralDirectoryOffset === 0xffffffff)) {
        return callback(null, new ZipFile(reader, centralDirectoryOffset, totalSize, entryCount, comment, options.autoClose, options.lazyEntries, decodeStrings, options.validateEntrySizes, options.strictFileNames));
      }

      // ZIP64 format

      // ZIP64 Zip64 end of central directory locator
      var zip64EocdlBuffer = newBuffer(20);
      var zip64EocdlOffset = bufferReadStart + i - zip64EocdlBuffer.length;
      readAndAssertNoEof(reader, zip64EocdlBuffer, 0, zip64EocdlBuffer.length, zip64EocdlOffset, function(err) {
        if (err) return callback(err);

        // 0 - zip64 end of central dir locator signature = 0x07064b50
        if (zip64EocdlBuffer.readUInt32LE(0) !== 0x07064b50) {
          return callback(new Error("invalid zip64 end of central directory locator signature"));
        }
        // 4 - number of the disk with the start of the zip64 end of central directory
        // 8 - relative offset of the zip64 end of central directory record
        var zip64EocdrOffset = readUInt64LE(zip64EocdlBuffer, 8);
        // 16 - total number of disks

        // ZIP64 end of central directory record
        var zip64EocdrBuffer = newBuffer(56);
        readAndAssertNoEof(reader, zip64EocdrBuffer, 0, zip64EocdrBuffer.length, zip64EocdrOffset, function(err) {
          if (err) return callback(err);

          // 0 - zip64 end of central dir signature                           4 bytes  (0x06064b50)
          if (zip64EocdrBuffer.readUInt32LE(0) !== 0x06064b50) {
            return callback(new Error("invalid zip64 end of central directory record signature"));
          }
          // 4 - size of zip64 end of central directory record                8 bytes
          // 12 - version made by                                             2 bytes
          // 14 - version needed to extract                                   2 bytes
          // 16 - number of this disk                                         4 bytes
          // 20 - number of the disk with the start of the central directory  4 bytes
          // 24 - total number of entries in the central directory on this disk         8 bytes
          // 32 - total number of entries in the central directory            8 bytes
          entryCount = readUInt64LE(zip64EocdrBuffer, 32);
          // 40 - size of the central directory                               8 bytes
          // 48 - offset of start of central directory with respect to the starting disk number     8 bytes
          centralDirectoryOffset = readUInt64LE(zip64EocdrBuffer, 48);
          // 56 - zip64 extensible data sector                                (variable size)
          return callback(null, new ZipFile(reader, centralDirectoryOffset, totalSize, entryCount, comment, options.autoClose, options.lazyEntries, decodeStrings, options.validateEntrySizes, options.strictFileNames));
        });
      });
      return;
    }
    callback(new Error("end of central directory record signature not found"));
  });
}

util.inherits(ZipFile, EventEmitter$1);
function ZipFile(reader, centralDirectoryOffset, fileSize, entryCount, comment, autoClose, lazyEntries, decodeStrings, validateEntrySizes, strictFileNames) {
  var self = this;
  EventEmitter$1.call(self);
  self.reader = reader;
  // forward close events
  self.reader.on("error", function(err) {
    // error closing the fd
    emitError(self, err);
  });
  self.reader.once("close", function() {
    self.emit("close");
  });
  self.readEntryCursor = centralDirectoryOffset;
  self.fileSize = fileSize;
  self.entryCount = entryCount;
  self.comment = comment;
  self.entriesRead = 0;
  self.autoClose = !!autoClose;
  self.lazyEntries = !!lazyEntries;
  self.decodeStrings = !!decodeStrings;
  self.validateEntrySizes = !!validateEntrySizes;
  self.strictFileNames = !!strictFileNames;
  self.isOpen = true;
  self.emittedError = false;

  if (!self.lazyEntries) self._readEntry();
}
ZipFile.prototype.close = function() {
  if (!this.isOpen) return;
  this.isOpen = false;
  this.reader.unref();
};

function emitErrorAndAutoClose(self, err) {
  if (self.autoClose) self.close();
  emitError(self, err);
}
function emitError(self, err) {
  if (self.emittedError) return;
  self.emittedError = true;
  self.emit("error", err);
}

ZipFile.prototype.readEntry = function() {
  if (!this.lazyEntries) throw new Error("readEntry() called without lazyEntries:true");
  this._readEntry();
};
ZipFile.prototype._readEntry = function() {
  var self = this;
  if (self.entryCount === self.entriesRead) {
    // done with metadata
    setImmediate(function() {
      if (self.autoClose) self.close();
      if (self.emittedError) return;
      self.emit("end");
    });
    return;
  }
  if (self.emittedError) return;
  var buffer$$1 = newBuffer(46);
  readAndAssertNoEof(self.reader, buffer$$1, 0, buffer$$1.length, self.readEntryCursor, function(err) {
    if (err) return emitErrorAndAutoClose(self, err);
    if (self.emittedError) return;
    var entry = new Entry();
    // 0 - Central directory file header signature
    var signature = buffer$$1.readUInt32LE(0);
    if (signature !== 0x02014b50) return emitErrorAndAutoClose(self, new Error("invalid central directory file header signature: 0x" + signature.toString(16)));
    // 4 - Version made by
    entry.versionMadeBy = buffer$$1.readUInt16LE(4);
    // 6 - Version needed to extract (minimum)
    entry.versionNeededToExtract = buffer$$1.readUInt16LE(6);
    // 8 - General purpose bit flag
    entry.generalPurposeBitFlag = buffer$$1.readUInt16LE(8);
    // 10 - Compression method
    entry.compressionMethod = buffer$$1.readUInt16LE(10);
    // 12 - File last modification time
    entry.lastModFileTime = buffer$$1.readUInt16LE(12);
    // 14 - File last modification date
    entry.lastModFileDate = buffer$$1.readUInt16LE(14);
    // 16 - CRC-32
    entry.crc32 = buffer$$1.readUInt32LE(16);
    // 20 - Compressed size
    entry.compressedSize = buffer$$1.readUInt32LE(20);
    // 24 - Uncompressed size
    entry.uncompressedSize = buffer$$1.readUInt32LE(24);
    // 28 - File name length (n)
    entry.fileNameLength = buffer$$1.readUInt16LE(28);
    // 30 - Extra field length (m)
    entry.extraFieldLength = buffer$$1.readUInt16LE(30);
    // 32 - File comment length (k)
    entry.fileCommentLength = buffer$$1.readUInt16LE(32);
    // 34 - Disk number where file starts
    // 36 - Internal file attributes
    entry.internalFileAttributes = buffer$$1.readUInt16LE(36);
    // 38 - External file attributes
    entry.externalFileAttributes = buffer$$1.readUInt32LE(38);
    // 42 - Relative offset of local file header
    entry.relativeOffsetOfLocalHeader = buffer$$1.readUInt32LE(42);

    if (entry.generalPurposeBitFlag & 0x40) return emitErrorAndAutoClose(self, new Error("strong encryption is not supported"));

    self.readEntryCursor += 46;

    buffer$$1 = newBuffer(entry.fileNameLength + entry.extraFieldLength + entry.fileCommentLength);
    readAndAssertNoEof(self.reader, buffer$$1, 0, buffer$$1.length, self.readEntryCursor, function(err) {
      if (err) return emitErrorAndAutoClose(self, err);
      if (self.emittedError) return;
      // 46 - File name
      var isUtf8 = (entry.generalPurposeBitFlag & 0x800) !== 0;
      entry.fileName = self.decodeStrings ? decodeBuffer(buffer$$1, 0, entry.fileNameLength, isUtf8)
                                          : buffer$$1.slice(0, entry.fileNameLength);

      // 46+n - Extra field
      var fileCommentStart = entry.fileNameLength + entry.extraFieldLength;
      var extraFieldBuffer = buffer$$1.slice(entry.fileNameLength, fileCommentStart);
      entry.extraFields = [];
      var i = 0;
      while (i < extraFieldBuffer.length - 3) {
        var headerId = extraFieldBuffer.readUInt16LE(i + 0);
        var dataSize = extraFieldBuffer.readUInt16LE(i + 2);
        var dataStart = i + 4;
        var dataEnd = dataStart + dataSize;
        if (dataEnd > extraFieldBuffer.length) return emitErrorAndAutoClose(self, new Error("extra field length exceeds extra field buffer size"));
        var dataBuffer = newBuffer(dataSize);
        extraFieldBuffer.copy(dataBuffer, 0, dataStart, dataEnd);
        entry.extraFields.push({
          id: headerId,
          data: dataBuffer,
        });
        i = dataEnd;
      }

      // 46+n+m - File comment
      entry.fileComment = self.decodeStrings ? decodeBuffer(buffer$$1, fileCommentStart, fileCommentStart + entry.fileCommentLength, isUtf8)
                                             : buffer$$1.slice(fileCommentStart, fileCommentStart + entry.fileCommentLength);
      // compatibility hack for https://github.com/thejoshwolfe/yauzl/issues/47
      entry.comment = entry.fileComment;

      self.readEntryCursor += buffer$$1.length;
      self.entriesRead += 1;

      if (entry.uncompressedSize            === 0xffffffff ||
          entry.compressedSize              === 0xffffffff ||
          entry.relativeOffsetOfLocalHeader === 0xffffffff) {
        // ZIP64 format
        // find the Zip64 Extended Information Extra Field
        var zip64EiefBuffer = null;
        for (var i = 0; i < entry.extraFields.length; i++) {
          var extraField = entry.extraFields[i];
          if (extraField.id === 0x0001) {
            zip64EiefBuffer = extraField.data;
            break;
          }
        }
        if (zip64EiefBuffer == null) {
          return emitErrorAndAutoClose(self, new Error("expected zip64 extended information extra field"));
        }
        var index = 0;
        // 0 - Original Size          8 bytes
        if (entry.uncompressedSize === 0xffffffff) {
          if (index + 8 > zip64EiefBuffer.length) {
            return emitErrorAndAutoClose(self, new Error("zip64 extended information extra field does not include uncompressed size"));
          }
          entry.uncompressedSize = readUInt64LE(zip64EiefBuffer, index);
          index += 8;
        }
        // 8 - Compressed Size        8 bytes
        if (entry.compressedSize === 0xffffffff) {
          if (index + 8 > zip64EiefBuffer.length) {
            return emitErrorAndAutoClose(self, new Error("zip64 extended information extra field does not include compressed size"));
          }
          entry.compressedSize = readUInt64LE(zip64EiefBuffer, index);
          index += 8;
        }
        // 16 - Relative Header Offset 8 bytes
        if (entry.relativeOffsetOfLocalHeader === 0xffffffff) {
          if (index + 8 > zip64EiefBuffer.length) {
            return emitErrorAndAutoClose(self, new Error("zip64 extended information extra field does not include relative header offset"));
          }
          entry.relativeOffsetOfLocalHeader = readUInt64LE(zip64EiefBuffer, index);
          index += 8;
        }
        // 24 - Disk Start Number      4 bytes
      }

      // check for Info-ZIP Unicode Path Extra Field (0x7075)
      // see https://github.com/thejoshwolfe/yauzl/issues/33
      if (self.decodeStrings) {
        for (var i = 0; i < entry.extraFields.length; i++) {
          var extraField = entry.extraFields[i];
          if (extraField.id === 0x7075) {
            if (extraField.data.length < 6) {
              // too short to be meaningful
              continue;
            }
            // Version       1 byte      version of this extra field, currently 1
            if (extraField.data.readUInt8(0) !== 1) {
              // > Changes may not be backward compatible so this extra
              // > field should not be used if the version is not recognized.
              continue;
            }
            // NameCRC32     4 bytes     File Name Field CRC32 Checksum
            var oldNameCrc32 = extraField.data.readUInt32LE(1);
            if (bufferCrc32.unsigned(buffer$$1.slice(0, entry.fileNameLength)) !== oldNameCrc32) {
              // > If the CRC check fails, this UTF-8 Path Extra Field should be
              // > ignored and the File Name field in the header should be used instead.
              continue;
            }
            // UnicodeName   Variable    UTF-8 version of the entry File Name
            entry.fileName = decodeBuffer(extraField.data, 5, extraField.data.length, true);
            break;
          }
        }
      }

      // validate file size
      if (self.validateEntrySizes && entry.compressionMethod === 0) {
        var expectedCompressedSize = entry.uncompressedSize;
        if (entry.isEncrypted()) {
          // traditional encryption prefixes the file data with a header
          expectedCompressedSize += 12;
        }
        if (entry.compressedSize !== expectedCompressedSize) {
          var msg = "compressed/uncompressed size mismatch for stored file: " + entry.compressedSize + " != " + entry.uncompressedSize;
          return emitErrorAndAutoClose(self, new Error(msg));
        }
      }

      if (self.decodeStrings) {
        if (!self.strictFileNames) {
          // allow backslash
          entry.fileName = entry.fileName.replace(/\\/g, "/");
        }
        var errorMessage = validateFileName(entry.fileName, self.validateFileNameOptions);
        if (errorMessage != null) return emitErrorAndAutoClose(self, new Error(errorMessage));
      }
      self.emit("entry", entry);

      if (!self.lazyEntries) self._readEntry();
    });
  });
};

ZipFile.prototype.openReadStream = function(entry, options, callback) {
  var self = this;
  // parameter validation
  var relativeStart = 0;
  var relativeEnd = entry.compressedSize;
  if (callback == null) {
    callback = options;
    options = {};
  } else {
    // validate options that the caller has no excuse to get wrong
    if (options.decrypt != null) {
      if (!entry.isEncrypted()) {
        throw new Error("options.decrypt can only be specified for encrypted entries");
      }
      if (options.decrypt !== false) throw new Error("invalid options.decrypt value: " + options.decrypt);
      if (entry.isCompressed()) {
        if (options.decompress !== false) throw new Error("entry is encrypted and compressed, and options.decompress !== false");
      }
    }
    if (options.decompress != null) {
      if (!entry.isCompressed()) {
        throw new Error("options.decompress can only be specified for compressed entries");
      }
      if (!(options.decompress === false || options.decompress === true)) {
        throw new Error("invalid options.decompress value: " + options.decompress);
      }
    }
    if (options.start != null || options.end != null) {
      if (entry.isCompressed() && options.decompress !== false) {
        throw new Error("start/end range not allowed for compressed entry without options.decompress === false");
      }
      if (entry.isEncrypted() && options.decrypt !== false) {
        throw new Error("start/end range not allowed for encrypted entry without options.decrypt === false");
      }
    }
    if (options.start != null) {
      relativeStart = options.start;
      if (relativeStart < 0) throw new Error("options.start < 0");
      if (relativeStart > entry.compressedSize) throw new Error("options.start > entry.compressedSize");
    }
    if (options.end != null) {
      relativeEnd = options.end;
      if (relativeEnd < 0) throw new Error("options.end < 0");
      if (relativeEnd > entry.compressedSize) throw new Error("options.end > entry.compressedSize");
      if (relativeEnd < relativeStart) throw new Error("options.end < options.start");
    }
  }
  // any further errors can either be caused by the zipfile,
  // or were introduced in a minor version of yauzl,
  // so should be passed to the client rather than thrown.
  if (!self.isOpen) return callback(new Error("closed"));
  if (entry.isEncrypted()) {
    if (options.decrypt !== false) return callback(new Error("entry is encrypted, and options.decrypt !== false"));
  }
  // make sure we don't lose the fd before we open the actual read stream
  self.reader.ref();
  var buffer$$1 = newBuffer(30);
  readAndAssertNoEof(self.reader, buffer$$1, 0, buffer$$1.length, entry.relativeOffsetOfLocalHeader, function(err) {
    try {
      if (err) return callback(err);
      // 0 - Local file header signature = 0x04034b50
      var signature = buffer$$1.readUInt32LE(0);
      if (signature !== 0x04034b50) {
        return callback(new Error("invalid local file header signature: 0x" + signature.toString(16)));
      }
      // all this should be redundant
      // 4 - Version needed to extract (minimum)
      // 6 - General purpose bit flag
      // 8 - Compression method
      // 10 - File last modification time
      // 12 - File last modification date
      // 14 - CRC-32
      // 18 - Compressed size
      // 22 - Uncompressed size
      // 26 - File name length (n)
      var fileNameLength = buffer$$1.readUInt16LE(26);
      // 28 - Extra field length (m)
      var extraFieldLength = buffer$$1.readUInt16LE(28);
      // 30 - File name
      // 30+n - Extra field
      var localFileHeaderEnd = entry.relativeOffsetOfLocalHeader + buffer$$1.length + fileNameLength + extraFieldLength;
      var decompress;
      if (entry.compressionMethod === 0) {
        // 0 - The file is stored (no compression)
        decompress = false;
      } else if (entry.compressionMethod === 8) {
        // 8 - The file is Deflated
        decompress = options.decompress != null ? options.decompress : true;
      } else {
        return callback(new Error("unsupported compression method: " + entry.compressionMethod));
      }
      var fileDataStart = localFileHeaderEnd;
      var fileDataEnd = fileDataStart + entry.compressedSize;
      if (entry.compressedSize !== 0) {
        // bounds check now, because the read streams will probably not complain loud enough.
        // since we're dealing with an unsigned offset plus an unsigned size,
        // we only have 1 thing to check for.
        if (fileDataEnd > self.fileSize) {
          return callback(new Error("file data overflows file bounds: " +
              fileDataStart + " + " + entry.compressedSize + " > " + self.fileSize));
        }
      }
      var readStream = self.reader.createReadStream({
        start: fileDataStart + relativeStart,
        end: fileDataStart + relativeEnd,
      });
      var endpointStream = readStream;
      if (decompress) {
        var destroyed = false;
        var inflateFilter = zlib.createInflateRaw();
        readStream.on("error", function(err) {
          // setImmediate here because errors can be emitted during the first call to pipe()
          setImmediate(function() {
            if (!destroyed) inflateFilter.emit("error", err);
          });
        });
        readStream.pipe(inflateFilter);

        if (self.validateEntrySizes) {
          endpointStream = new AssertByteCountStream(entry.uncompressedSize);
          inflateFilter.on("error", function(err) {
            // forward zlib errors to the client-visible stream
            setImmediate(function() {
              if (!destroyed) endpointStream.emit("error", err);
            });
          });
          inflateFilter.pipe(endpointStream);
        } else {
          // the zlib filter is the client-visible stream
          endpointStream = inflateFilter;
        }
        // this is part of yauzl's API, so implement this function on the client-visible stream
        endpointStream.destroy = function() {
          destroyed = true;
          if (inflateFilter !== endpointStream) inflateFilter.unpipe(endpointStream);
          readStream.unpipe(inflateFilter);
          // TODO: the inflateFilter may cause a memory leak. see Issue #27.
          readStream.destroy();
        };
      }
      callback(null, endpointStream);
    } finally {
      self.reader.unref();
    }
  });
};

function Entry() {
}
Entry.prototype.getLastModDate = function() {
  return dosDateTimeToDate(this.lastModFileDate, this.lastModFileTime);
};
Entry.prototype.isEncrypted = function() {
  return (this.generalPurposeBitFlag & 0x1) !== 0;
};
Entry.prototype.isCompressed = function() {
  return this.compressionMethod === 8;
};

function dosDateTimeToDate(date, time) {
  var day = date & 0x1f; // 1-31
  var month = (date >> 5 & 0xf) - 1; // 1-12, 0-11
  var year = (date >> 9 & 0x7f) + 1980; // 0-128, 1980-2108

  var millisecond = 0;
  var second = (time & 0x1f) * 2; // 0-29, 0-58 (even numbers)
  var minute = time >> 5 & 0x3f; // 0-59
  var hour = time >> 11 & 0x1f; // 0-23

  return new Date(year, month, day, hour, minute, second, millisecond);
}

function validateFileName(fileName) {
  if (fileName.indexOf("\\") !== -1) {
    return "invalid characters in fileName: " + fileName;
  }
  if (/^[a-zA-Z]:/.test(fileName) || /^\//.test(fileName)) {
    return "absolute path: " + fileName;
  }
  if (fileName.split("/").indexOf("..") !== -1) {
    return "invalid relative path: " + fileName;
  }
  // all good
  return null;
}

function readAndAssertNoEof(reader, buffer$$1, offset, length, position, callback) {
  if (length === 0) {
    // fs.read will throw an out-of-bounds error if you try to read 0 bytes from a 0 byte file
    return setImmediate(function() { callback(null, newBuffer(0)); });
  }
  reader.read(buffer$$1, offset, length, position, function(err, bytesRead) {
    if (err) return callback(err);
    if (bytesRead < length) {
      return callback(new Error("unexpected EOF"));
    }
    callback();
  });
}

util.inherits(AssertByteCountStream, Transform$2);
function AssertByteCountStream(byteCount) {
  Transform$2.call(this);
  this.actualByteCount = 0;
  this.expectedByteCount = byteCount;
}
AssertByteCountStream.prototype._transform = function(chunk, encoding, cb) {
  this.actualByteCount += chunk.length;
  if (this.actualByteCount > this.expectedByteCount) {
    var msg = "too many bytes in the stream. expected " + this.expectedByteCount + ". got at least " + this.actualByteCount;
    return cb(new Error(msg));
  }
  cb(null, chunk);
};
AssertByteCountStream.prototype._flush = function(cb) {
  if (this.actualByteCount < this.expectedByteCount) {
    var msg = "not enough bytes in the stream. expected " + this.expectedByteCount + ". got only " + this.actualByteCount;
    return cb(new Error(msg));
  }
  cb();
};

util.inherits(RandomAccessReader, EventEmitter$1);
function RandomAccessReader() {
  EventEmitter$1.call(this);
  this.refCount = 0;
}
RandomAccessReader.prototype.ref = function() {
  this.refCount += 1;
};
RandomAccessReader.prototype.unref = function() {
  var self = this;
  self.refCount -= 1;

  if (self.refCount > 0) return;
  if (self.refCount < 0) throw new Error("invalid unref");

  self.close(onCloseDone);

  function onCloseDone(err) {
    if (err) return self.emit('error', err);
    self.emit('close');
  }
};
RandomAccessReader.prototype.createReadStream = function(options) {
  var start = options.start;
  var end = options.end;
  if (start === end) {
    var emptyStream = new PassThrough$1();
    setImmediate(function() {
      emptyStream.end();
    });
    return emptyStream;
  }
  var stream$$1 = this._readStreamForRange(start, end);

  var destroyed = false;
  var refUnrefFilter = new RefUnrefFilter(this);
  stream$$1.on("error", function(err) {
    setImmediate(function() {
      if (!destroyed) refUnrefFilter.emit("error", err);
    });
  });
  refUnrefFilter.destroy = function() {
    stream$$1.unpipe(refUnrefFilter);
    refUnrefFilter.unref();
    stream$$1.destroy();
  };

  var byteCounter = new AssertByteCountStream(end - start);
  refUnrefFilter.on("error", function(err) {
    setImmediate(function() {
      if (!destroyed) byteCounter.emit("error", err);
    });
  });
  byteCounter.destroy = function() {
    destroyed = true;
    refUnrefFilter.unpipe(byteCounter);
    refUnrefFilter.destroy();
  };

  return stream$$1.pipe(refUnrefFilter).pipe(byteCounter);
};
RandomAccessReader.prototype._readStreamForRange = function(start, end) {
  throw new Error("not implemented");
};
RandomAccessReader.prototype.read = function(buffer$$1, offset, length, position, callback) {
  var readStream = this.createReadStream({start: position, end: position + length});
  var writeStream = new Writable$2();
  var written = 0;
  writeStream._write = function(chunk, encoding, cb) {
    chunk.copy(buffer$$1, offset + written, 0, chunk.length);
    written += chunk.length;
    cb();
  };
  writeStream.on("finish", callback);
  readStream.on("error", function(error) {
    callback(error);
  });
  readStream.pipe(writeStream);
};
RandomAccessReader.prototype.close = function(callback) {
  setImmediate(callback);
};

util.inherits(RefUnrefFilter, PassThrough$1);
function RefUnrefFilter(context) {
  PassThrough$1.call(this);
  this.context = context;
  this.context.ref();
  this.unreffedYet = false;
}
RefUnrefFilter.prototype._flush = function(cb) {
  this.unref();
  cb();
};
RefUnrefFilter.prototype.unref = function(cb) {
  if (this.unreffedYet) return;
  this.unreffedYet = true;
  this.context.unref();
};

var cp437 = '\u0000☺☻♥♦♣♠•◘○◙♂♀♪♫☼►◄↕‼¶§▬↨↑↓→←∟↔▲▼ !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~⌂ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ ';
function decodeBuffer(buffer$$1, start, end, isUtf8) {
  if (isUtf8) {
    return buffer$$1.toString("utf8", start, end);
  } else {
    var result = "";
    for (var i = start; i < end; i++) {
      result += cp437[buffer$$1[i]];
    }
    return result;
  }
}

function readUInt64LE(buffer$$1, offset) {
  // there is no native function for this, because we can't actually store 64-bit integers precisely.
  // after 53 bits, JavaScript's Number type (IEEE 754 double) can't store individual integers anymore.
  // but since 53 bits is a whole lot more than 32 bits, we do our best anyway.
  var lower32 = buffer$$1.readUInt32LE(offset);
  var upper32 = buffer$$1.readUInt32LE(offset + 4);
  // we can't use bitshifting here, because JavaScript bitshifting only works on 32-bit integers.
  return upper32 * 0x100000000 + lower32;
  // as long as we're bounds checking the result of this function against the total file size,
  // we'll catch any overflow errors, because we already made sure the total file size was within reason.
}

// Node 10 deprecated new Buffer().
var newBuffer;
if (typeof Buffer.allocUnsafe === "function") {
  newBuffer = function(len) {
    return Buffer.allocUnsafe(len);
  };
} else {
  newBuffer = function(len) {
    return new Buffer(len);
  };
}

function defaultCallback(err) {
  if (err) throw err;
}

var yauzl = {
	open: open_1,
	fromFd: fromFd_1,
	fromBuffer: fromBuffer_1,
	fromRandomAccessReader: fromRandomAccessReader_1,
	dosDateTimeToDate: dosDateTimeToDate_1,
	validateFileName: validateFileName_1,
	ZipFile: ZipFile_1,
	Entry: Entry_1,
	RandomAccessReader: RandomAccessReader_1
};

var _from = "got@^9.5.0";
var _id = "got@9.5.0";
var _inBundle = false;
var _integrity = "sha512-N+4kb6i9t1lauJ4NwLVVoFVLxZNa6i+iivtNzCSVw7+bVbTXoq0qXctdd8i9rj3lrI0zDk5NGzcO4bfpEP6Uuw==";
var _location = "/got";
var _phantomChildren = {
};
var _requested = {
	type: "range",
	registry: true,
	raw: "got@^9.5.0",
	name: "got",
	escapedName: "got",
	rawSpec: "^9.5.0",
	saveSpec: null,
	fetchSpec: "^9.5.0"
};
var _requiredBy = [
	"/gh-got"
];
var _resolved = "https://registry.npmjs.org/got/-/got-9.5.0.tgz";
var _shasum = "6fd0312c6b694c0a11d9119d95fd7daed174eb49";
var _spec = "got@^9.5.0";
var _where = "/Users/vladimyr/Projects/_private/get-deno/node_modules/gh-got";
var ava = {
	concurrency: 4
};
var browser = {
	"decompress-response": false,
	electron: false
};
var bugs$1 = {
	url: "https://github.com/sindresorhus/got/issues"
};
var bundleDependencies = false;
var dependencies$1 = {
	"@sindresorhus/is": "^0.14.0",
	"@szmarczak/http-timer": "^1.1.0",
	"cacheable-request": "^5.1.0",
	"decompress-response": "^3.3.0",
	duplexer3: "^0.1.4",
	"get-stream": "^4.1.0",
	"lowercase-keys": "^1.0.1",
	"mimic-response": "^1.0.1",
	"p-cancelable": "^1.0.0",
	"to-readable-stream": "^1.0.0",
	"url-parse-lax": "^3.0.0"
};
var deprecated = false;
var description$1 = "Simplified HTTP requests";
var devDependencies$1 = {
	ava: "^1.0.1",
	coveralls: "^3.0.0",
	delay: "^4.1.0",
	"form-data": "^2.3.3",
	"get-port": "^4.0.0",
	np: "^3.1.0",
	nyc: "^13.1.0",
	"p-event": "^2.1.0",
	pem: "^1.13.2",
	proxyquire: "^2.0.1",
	sinon: "^7.2.2",
	"slow-stream": "0.0.4",
	tempfile: "^2.0.0",
	tempy: "^0.2.1",
	"tough-cookie": "^2.4.3",
	xo: "^0.23.0"
};
var engines = {
	node: ">=8.6"
};
var files$1 = [
	"source"
];
var homepage$1 = "https://github.com/sindresorhus/got#readme";
var keywords$1 = [
	"http",
	"https",
	"get",
	"got",
	"url",
	"uri",
	"request",
	"util",
	"utility",
	"simple",
	"curl",
	"wget",
	"fetch",
	"net",
	"network",
	"electron"
];
var license$1 = "MIT";
var main = "source";
var name$1 = "got";
var repository$1 = {
	type: "git",
	url: "git+https://github.com/sindresorhus/got.git"
};
var scripts$1 = {
	release: "np",
	test: "xo && nyc ava"
};
var version$1 = "9.5.0";
var _package$2 = {
	_from: _from,
	_id: _id,
	_inBundle: _inBundle,
	_integrity: _integrity,
	_location: _location,
	_phantomChildren: _phantomChildren,
	_requested: _requested,
	_requiredBy: _requiredBy,
	_resolved: _resolved,
	_shasum: _shasum,
	_spec: _spec,
	_where: _where,
	ava: ava,
	browser: browser,
	bugs: bugs$1,
	bundleDependencies: bundleDependencies,
	dependencies: dependencies$1,
	deprecated: deprecated,
	description: description$1,
	devDependencies: devDependencies$1,
	engines: engines,
	files: files$1,
	homepage: homepage$1,
	keywords: keywords$1,
	license: license$1,
	main: main,
	name: name$1,
	repository: repository$1,
	scripts: scripts$1,
	version: version$1
};

var _package$3 = /*#__PURE__*/Object.freeze({
	_from: _from,
	_id: _id,
	_inBundle: _inBundle,
	_integrity: _integrity,
	_location: _location,
	_phantomChildren: _phantomChildren,
	_requested: _requested,
	_requiredBy: _requiredBy,
	_resolved: _resolved,
	_shasum: _shasum,
	_spec: _spec,
	_where: _where,
	ava: ava,
	browser: browser,
	bugs: bugs$1,
	bundleDependencies: bundleDependencies,
	dependencies: dependencies$1,
	deprecated: deprecated,
	description: description$1,
	devDependencies: devDependencies$1,
	engines: engines,
	files: files$1,
	homepage: homepage$1,
	keywords: keywords$1,
	license: license$1,
	main: main,
	name: name$1,
	repository: repository$1,
	scripts: scripts$1,
	version: version$1,
	default: _package$2
});

class CancelError extends Error {
	constructor(reason) {
		super(reason || 'Promise was canceled');
		this.name = 'CancelError';
	}

	get isCanceled() {
		return true;
	}
}

class PCancelable {
	static fn(userFn) {
		return (...args) => {
			return new PCancelable((resolve, reject, onCancel) => {
				args.push(onCancel);
				userFn(...args).then(resolve, reject);
			});
		};
	}

	constructor(executor) {
		this._cancelHandlers = [];
		this._isPending = true;
		this._isCanceled = false;
		this._rejectOnCancel = true;

		this._promise = new Promise((resolve, reject) => {
			this._reject = reject;

			const onResolve = value => {
				this._isPending = false;
				resolve(value);
			};

			const onReject = error => {
				this._isPending = false;
				reject(error);
			};

			const onCancel = handler => {
				this._cancelHandlers.push(handler);
			};

			Object.defineProperties(onCancel, {
				shouldReject: {
					get: () => this._rejectOnCancel,
					set: bool => {
						this._rejectOnCancel = bool;
					}
				}
			});

			return executor(onResolve, onReject, onCancel);
		});
	}

	then(onFulfilled, onRejected) {
		return this._promise.then(onFulfilled, onRejected);
	}

	catch(onRejected) {
		return this._promise.catch(onRejected);
	}

	finally(onFinally) {
		return this._promise.finally(onFinally);
	}

	cancel(reason) {
		if (!this._isPending || this._isCanceled) {
			return;
		}

		if (this._cancelHandlers.length > 0) {
			try {
				for (const handler of this._cancelHandlers) {
					handler();
				}
			} catch (error) {
				this._reject(error);
			}
		}

		this._isCanceled = true;
		if (this._rejectOnCancel) {
			this._reject(new CancelError(reason));
		}
	}

	get isCanceled() {
		return this._isCanceled;
	}
}

Object.setPrototypeOf(PCancelable.prototype, Promise.prototype);

var pCancelable = PCancelable;
var CancelError_1 = CancelError;
pCancelable.CancelError = CancelError_1;

var dist = createCommonjsModule(function (module, exports) {
/// <reference lib="es2016"/>
/// <reference lib="es2017.sharedmemory"/>
/// <reference lib="esnext.asynciterable"/>
/// <reference lib="dom"/>
Object.defineProperty(exports, "__esModule", { value: true });
// TODO: Use the `URL` global when targeting Node.js 10
// tslint:disable-next-line
const URLGlobal = typeof URL === 'undefined' ? url.URL : URL;
const toString = Object.prototype.toString;
const isOfType = (type) => (value) => typeof value === type;
const isBuffer = (input) => !is.nullOrUndefined(input) && !is.nullOrUndefined(input.constructor) && is.function_(input.constructor.isBuffer) && input.constructor.isBuffer(input);
const getObjectType = (value) => {
    const objectName = toString.call(value).slice(8, -1);
    if (objectName) {
        return objectName;
    }
    return null;
};
const isObjectOfType = (type) => (value) => getObjectType(value) === type;
function is(value) {
    switch (value) {
        case null:
            return "null" /* null */;
        case true:
        case false:
            return "boolean" /* boolean */;
        default:
    }
    switch (typeof value) {
        case 'undefined':
            return "undefined" /* undefined */;
        case 'string':
            return "string" /* string */;
        case 'number':
            return "number" /* number */;
        case 'symbol':
            return "symbol" /* symbol */;
        default:
    }
    if (is.function_(value)) {
        return "Function" /* Function */;
    }
    if (is.observable(value)) {
        return "Observable" /* Observable */;
    }
    if (Array.isArray(value)) {
        return "Array" /* Array */;
    }
    if (isBuffer(value)) {
        return "Buffer" /* Buffer */;
    }
    const tagType = getObjectType(value);
    if (tagType) {
        return tagType;
    }
    if (value instanceof String || value instanceof Boolean || value instanceof Number) {
        throw new TypeError('Please don\'t use object wrappers for primitive types');
    }
    return "Object" /* Object */;
}
(function (is) {
    // tslint:disable-next-line:strict-type-predicates
    const isObject = (value) => typeof value === 'object';
    // tslint:disable:variable-name
    is.undefined = isOfType('undefined');
    is.string = isOfType('string');
    is.number = isOfType('number');
    is.function_ = isOfType('function');
    // tslint:disable-next-line:strict-type-predicates
    is.null_ = (value) => value === null;
    is.class_ = (value) => is.function_(value) && value.toString().startsWith('class ');
    is.boolean = (value) => value === true || value === false;
    is.symbol = isOfType('symbol');
    // tslint:enable:variable-name
    is.numericString = (value) => is.string(value) && value.length > 0 && !Number.isNaN(Number(value));
    is.array = Array.isArray;
    is.buffer = isBuffer;
    is.nullOrUndefined = (value) => is.null_(value) || is.undefined(value);
    is.object = (value) => !is.nullOrUndefined(value) && (is.function_(value) || isObject(value));
    is.iterable = (value) => !is.nullOrUndefined(value) && is.function_(value[Symbol.iterator]);
    is.asyncIterable = (value) => !is.nullOrUndefined(value) && is.function_(value[Symbol.asyncIterator]);
    is.generator = (value) => is.iterable(value) && is.function_(value.next) && is.function_(value.throw);
    is.nativePromise = (value) => isObjectOfType("Promise" /* Promise */)(value);
    const hasPromiseAPI = (value) => !is.null_(value) &&
        isObject(value) &&
        is.function_(value.then) &&
        is.function_(value.catch);
    is.promise = (value) => is.nativePromise(value) || hasPromiseAPI(value);
    is.generatorFunction = isObjectOfType("GeneratorFunction" /* GeneratorFunction */);
    is.asyncFunction = isObjectOfType("AsyncFunction" /* AsyncFunction */);
    is.boundFunction = (value) => is.function_(value) && !value.hasOwnProperty('prototype');
    is.regExp = isObjectOfType("RegExp" /* RegExp */);
    is.date = isObjectOfType("Date" /* Date */);
    is.error = isObjectOfType("Error" /* Error */);
    is.map = (value) => isObjectOfType("Map" /* Map */)(value);
    is.set = (value) => isObjectOfType("Set" /* Set */)(value);
    is.weakMap = (value) => isObjectOfType("WeakMap" /* WeakMap */)(value);
    is.weakSet = (value) => isObjectOfType("WeakSet" /* WeakSet */)(value);
    is.int8Array = isObjectOfType("Int8Array" /* Int8Array */);
    is.uint8Array = isObjectOfType("Uint8Array" /* Uint8Array */);
    is.uint8ClampedArray = isObjectOfType("Uint8ClampedArray" /* Uint8ClampedArray */);
    is.int16Array = isObjectOfType("Int16Array" /* Int16Array */);
    is.uint16Array = isObjectOfType("Uint16Array" /* Uint16Array */);
    is.int32Array = isObjectOfType("Int32Array" /* Int32Array */);
    is.uint32Array = isObjectOfType("Uint32Array" /* Uint32Array */);
    is.float32Array = isObjectOfType("Float32Array" /* Float32Array */);
    is.float64Array = isObjectOfType("Float64Array" /* Float64Array */);
    is.arrayBuffer = isObjectOfType("ArrayBuffer" /* ArrayBuffer */);
    is.sharedArrayBuffer = isObjectOfType("SharedArrayBuffer" /* SharedArrayBuffer */);
    is.dataView = isObjectOfType("DataView" /* DataView */);
    is.directInstanceOf = (instance, klass) => Object.getPrototypeOf(instance) === klass.prototype;
    is.urlInstance = (value) => isObjectOfType("URL" /* URL */)(value);
    is.urlString = (value) => {
        if (!is.string(value)) {
            return false;
        }
        try {
            new URLGlobal(value); // tslint:disable-line no-unused-expression
            return true;
        }
        catch (_a) {
            return false;
        }
    };
    is.truthy = (value) => Boolean(value);
    is.falsy = (value) => !value;
    is.nan = (value) => Number.isNaN(value);
    const primitiveTypes = new Set([
        'undefined',
        'string',
        'number',
        'boolean',
        'symbol'
    ]);
    is.primitive = (value) => is.null_(value) || primitiveTypes.has(typeof value);
    is.integer = (value) => Number.isInteger(value);
    is.safeInteger = (value) => Number.isSafeInteger(value);
    is.plainObject = (value) => {
        // From: https://github.com/sindresorhus/is-plain-obj/blob/master/index.js
        let prototype;
        return getObjectType(value) === "Object" /* Object */ &&
            (prototype = Object.getPrototypeOf(value), prototype === null || // tslint:disable-line:ban-comma-operator
                prototype === Object.getPrototypeOf({}));
    };
    const typedArrayTypes = new Set([
        "Int8Array" /* Int8Array */,
        "Uint8Array" /* Uint8Array */,
        "Uint8ClampedArray" /* Uint8ClampedArray */,
        "Int16Array" /* Int16Array */,
        "Uint16Array" /* Uint16Array */,
        "Int32Array" /* Int32Array */,
        "Uint32Array" /* Uint32Array */,
        "Float32Array" /* Float32Array */,
        "Float64Array" /* Float64Array */
    ]);
    is.typedArray = (value) => {
        const objectType = getObjectType(value);
        if (objectType === null) {
            return false;
        }
        return typedArrayTypes.has(objectType);
    };
    const isValidLength = (value) => is.safeInteger(value) && value > -1;
    is.arrayLike = (value) => !is.nullOrUndefined(value) && !is.function_(value) && isValidLength(value.length);
    is.inRange = (value, range) => {
        if (is.number(range)) {
            return value >= Math.min(0, range) && value <= Math.max(range, 0);
        }
        if (is.array(range) && range.length === 2) {
            return value >= Math.min(...range) && value <= Math.max(...range);
        }
        throw new TypeError(`Invalid range: ${JSON.stringify(range)}`);
    };
    const NODE_TYPE_ELEMENT = 1;
    const DOM_PROPERTIES_TO_CHECK = [
        'innerHTML',
        'ownerDocument',
        'style',
        'attributes',
        'nodeValue'
    ];
    is.domElement = (value) => is.object(value) && value.nodeType === NODE_TYPE_ELEMENT && is.string(value.nodeName) &&
        !is.plainObject(value) && DOM_PROPERTIES_TO_CHECK.every(property => property in value);
    is.observable = (value) => {
        if (!value) {
            return false;
        }
        if (value[Symbol.observable] && value === value[Symbol.observable]()) {
            return true;
        }
        if (value['@@observable'] && value === value['@@observable']()) {
            return true;
        }
        return false;
    };
    is.nodeStream = (value) => !is.nullOrUndefined(value) && isObject(value) && is.function_(value.pipe) && !is.observable(value);
    is.infinite = (value) => value === Infinity || value === -Infinity;
    const isAbsoluteMod2 = (rem) => (value) => is.integer(value) && Math.abs(value % 2) === rem;
    is.even = isAbsoluteMod2(0);
    is.odd = isAbsoluteMod2(1);
    const isWhiteSpaceString = (value) => is.string(value) && /\S/.test(value) === false;
    is.emptyArray = (value) => is.array(value) && value.length === 0;
    is.nonEmptyArray = (value) => is.array(value) && value.length > 0;
    is.emptyString = (value) => is.string(value) && value.length === 0;
    is.nonEmptyString = (value) => is.string(value) && value.length > 0;
    is.emptyStringOrWhitespace = (value) => is.emptyString(value) || isWhiteSpaceString(value);
    is.emptyObject = (value) => is.object(value) && !is.map(value) && !is.set(value) && Object.keys(value).length === 0;
    is.nonEmptyObject = (value) => is.object(value) && !is.map(value) && !is.set(value) && Object.keys(value).length > 0;
    is.emptySet = (value) => is.set(value) && value.size === 0;
    is.nonEmptySet = (value) => is.set(value) && value.size > 0;
    is.emptyMap = (value) => is.map(value) && value.size === 0;
    is.nonEmptyMap = (value) => is.map(value) && value.size > 0;
    const predicateOnArray = (method, predicate, values) => {
        if (is.function_(predicate) === false) {
            throw new TypeError(`Invalid predicate: ${JSON.stringify(predicate)}`);
        }
        if (values.length === 0) {
            throw new TypeError('Invalid number of values');
        }
        return method.call(values, predicate);
    };
    // tslint:disable variable-name
    is.any = (predicate, ...values) => predicateOnArray(Array.prototype.some, predicate, values);
    is.all = (predicate, ...values) => predicateOnArray(Array.prototype.every, predicate, values);
    // tslint:enable variable-name
})(is || (is = {}));
// Some few keywords are reserved, but we'll populate them for Node.js users
// See https://github.com/Microsoft/TypeScript/issues/2536
Object.defineProperties(is, {
    class: {
        value: is.class_
    },
    function: {
        value: is.function_
    },
    null: {
        value: is.null_
    }
});
exports.default = is;
// For CommonJS default export support
module.exports = is;
module.exports.default = is;

});

unwrapExports(dist);

class GotError extends Error {
	constructor(message, error, options) {
		super(message);
		Error.captureStackTrace(this, this.constructor);
		this.name = 'GotError';

		if (!dist.undefined(error.code)) {
			this.code = error.code;
		}

		Object.assign(this, {
			host: options.host,
			hostname: options.hostname,
			method: options.method,
			path: options.path,
			socketPath: options.socketPath,
			protocol: options.protocol,
			url: options.href,
			gotOptions: options
		});
	}
}

var GotError_1 = GotError;

var CacheError = class extends GotError {
	constructor(error, options) {
		super(error.message, error, options);
		this.name = 'CacheError';
	}
};

var RequestError = class extends GotError {
	constructor(error, options) {
		super(error.message, error, options);
		this.name = 'RequestError';
	}
};

var ReadError = class extends GotError {
	constructor(error, options) {
		super(error.message, error, options);
		this.name = 'ReadError';
	}
};

var ParseError = class extends GotError {
	constructor(error, statusCode, options, data) {
		super(`${error.message} in "${url.format(options)}": \n${data.slice(0, 77)}...`, error, options);
		this.name = 'ParseError';
		this.statusCode = statusCode;
		this.statusMessage = http.STATUS_CODES[this.statusCode];
	}
};

var HTTPError = class extends GotError {
	constructor(response, options) {
		const {statusCode} = response;
		let {statusMessage} = response;

		if (statusMessage) {
			statusMessage = statusMessage.replace(/\r?\n/g, ' ').trim();
		} else {
			statusMessage = http.STATUS_CODES[statusCode];
		}
		super(`Response code ${statusCode} (${statusMessage})`, {}, options);
		this.name = 'HTTPError';
		this.statusCode = statusCode;
		this.statusMessage = statusMessage;
		this.headers = response.headers;
		this.body = response.body;
	}
};

var MaxRedirectsError = class extends GotError {
	constructor(statusCode, redirectUrls, options) {
		super('Redirected 10 times. Aborting.', {}, options);
		this.name = 'MaxRedirectsError';
		this.statusCode = statusCode;
		this.statusMessage = http.STATUS_CODES[this.statusCode];
		this.redirectUrls = redirectUrls;
	}
};

var UnsupportedProtocolError = class extends GotError {
	constructor(options) {
		super(`Unsupported protocol "${options.protocol}"`, {}, options);
		this.name = 'UnsupportedProtocolError';
	}
};

var TimeoutError = class extends GotError {
	constructor(error, options) {
		super(error.message, {code: 'ETIMEDOUT'}, options);
		this.name = 'TimeoutError';
		this.event = error.event;
	}
};

var CancelError$1 = pCancelable.CancelError;

var errors = {
	GotError: GotError_1,
	CacheError: CacheError,
	RequestError: RequestError,
	ReadError: ReadError,
	ParseError: ParseError,
	HTTPError: HTTPError,
	MaxRedirectsError: MaxRedirectsError,
	UnsupportedProtocolError: UnsupportedProtocolError,
	TimeoutError: TimeoutError,
	CancelError: CancelError$1
};

function DuplexWrapper(options, writable, readable) {
  if (typeof readable === "undefined") {
    readable = writable;
    writable = options;
    options = null;
  }

  stream.Duplex.call(this, options);

  if (typeof readable.read !== "function") {
    readable = (new stream.Readable(options)).wrap(readable);
  }

  this._writable = writable;
  this._readable = readable;
  this._waiting = false;

  var self = this;

  writable.once("finish", function() {
    self.end();
  });

  this.once("finish", function() {
    writable.end();
  });

  readable.on("readable", function() {
    if (self._waiting) {
      self._waiting = false;
      self._read();
    }
  });

  readable.once("end", function() {
    self.push(null);
  });

  if (!options || typeof options.bubbleErrors === "undefined" || options.bubbleErrors) {
    writable.on("error", function(err) {
      self.emit("error", err);
    });

    readable.on("error", function(err) {
      self.emit("error", err);
    });
  }
}

DuplexWrapper.prototype = Object.create(stream.Duplex.prototype, {constructor: {value: DuplexWrapper}});

DuplexWrapper.prototype._write = function _write(input, encoding, done) {
  this._writable.write(input, encoding, done);
};

DuplexWrapper.prototype._read = function _read() {
  var buf;
  var reads = 0;
  while ((buf = this._readable.read()) !== null) {
    this.push(buf);
    reads++;
  }
  if (reads === 0) {
    this._waiting = true;
  }
};

var duplexer3 = function duplex2(options, writable, readable) {
  return new DuplexWrapper(options, writable, readable);
};

var DuplexWrapper_1 = DuplexWrapper;
duplexer3.DuplexWrapper = DuplexWrapper_1;

// TODO: Use the `URL` global when targeting Node.js 10
const URLParser = typeof URL === 'undefined' ? url.URL : URL;

const testParameter = (name, filters) => {
	return filters.some(filter => filter instanceof RegExp ? filter.test(name) : filter === name);
};

var normalizeUrl = (urlString, opts) => {
	opts = Object.assign({
		defaultProtocol: 'http:',
		normalizeProtocol: true,
		forceHttp: false,
		forceHttps: false,
		stripHash: true,
		stripWWW: true,
		removeQueryParameters: [/^utm_\w+/i],
		removeTrailingSlash: true,
		removeDirectoryIndex: false,
		sortQueryParameters: true
	}, opts);

	// Backwards compatibility
	if (Reflect.has(opts, 'normalizeHttps')) {
		opts.forceHttp = opts.normalizeHttps;
	}

	if (Reflect.has(opts, 'normalizeHttp')) {
		opts.forceHttps = opts.normalizeHttp;
	}

	if (Reflect.has(opts, 'stripFragment')) {
		opts.stripHash = opts.stripFragment;
	}

	urlString = urlString.trim();

	const hasRelativeProtocol = urlString.startsWith('//');
	const isRelativeUrl = !hasRelativeProtocol && /^\.*\//.test(urlString);

	// Prepend protocol
	if (!isRelativeUrl) {
		urlString = urlString.replace(/^(?!(?:\w+:)?\/\/)|^\/\//, opts.defaultProtocol);
	}

	const urlObj = new URLParser(urlString);

	if (opts.forceHttp && opts.forceHttps) {
		throw new Error('The `forceHttp` and `forceHttps` options cannot be used together');
	}

	if (opts.forceHttp && urlObj.protocol === 'https:') {
		urlObj.protocol = 'http:';
	}

	if (opts.forceHttps && urlObj.protocol === 'http:') {
		urlObj.protocol = 'https:';
	}

	// Remove hash
	if (opts.stripHash) {
		urlObj.hash = '';
	}

	// Remove duplicate slashes if not preceded by a protocol
	if (urlObj.pathname) {
		// TODO: Use the following instead when targeting Node.js 10
		// `urlObj.pathname = urlObj.pathname.replace(/(?<!https?:)\/{2,}/g, '/');`
		urlObj.pathname = urlObj.pathname.replace(/((?![https?:]).)\/{2,}/g, (_, p1) => {
			if (/^(?!\/)/g.test(p1)) {
				return `${p1}/`;
			}
			return '/';
		});
	}

	// Decode URI octets
	if (urlObj.pathname) {
		urlObj.pathname = decodeURI(urlObj.pathname);
	}

	// Remove directory index
	if (opts.removeDirectoryIndex === true) {
		opts.removeDirectoryIndex = [/^index\.[a-z]+$/];
	}

	if (Array.isArray(opts.removeDirectoryIndex) && opts.removeDirectoryIndex.length > 0) {
		let pathComponents = urlObj.pathname.split('/');
		const lastComponent = pathComponents[pathComponents.length - 1];

		if (testParameter(lastComponent, opts.removeDirectoryIndex)) {
			pathComponents = pathComponents.slice(0, pathComponents.length - 1);
			urlObj.pathname = pathComponents.slice(1).join('/') + '/';
		}
	}

	if (urlObj.hostname) {
		// Remove trailing dot
		urlObj.hostname = urlObj.hostname.replace(/\.$/, '');

		// Remove `www.`
		// eslint-disable-next-line no-useless-escape
		if (opts.stripWWW && /^www\.([a-z\-\d]{2,63})\.([a-z\.]{2,5})$/.test(urlObj.hostname)) {
			// Each label should be max 63 at length (min: 2).
			// The extension should be max 5 at length (min: 2).
			// Source: https://en.wikipedia.org/wiki/Hostname#Restrictions_on_valid_host_names
			urlObj.hostname = urlObj.hostname.replace(/^www\./, '');
		}
	}

	// Remove query unwanted parameters
	if (Array.isArray(opts.removeQueryParameters)) {
		for (const key of [...urlObj.searchParams.keys()]) {
			if (testParameter(key, opts.removeQueryParameters)) {
				urlObj.searchParams.delete(key);
			}
		}
	}

	// Sort query parameters
	if (opts.sortQueryParameters) {
		urlObj.searchParams.sort();
	}

	// Take advantage of many of the Node `url` normalizations
	urlString = urlObj.toString();

	// Remove ending `/`
	if (opts.removeTrailingSlash || urlObj.pathname === '/') {
		urlString = urlString.replace(/\/$/, '');
	}

	// Restore relative protocol, if applicable
	if (hasRelativeProtocol && !opts.normalizeProtocol) {
		urlString = urlString.replace(/^http:\/\//, '//');
	}

	return urlString;
};

const {PassThrough: PassThrough$2} = stream;

var bufferStream = options => {
	options = Object.assign({}, options);

	const {array} = options;
	let {encoding} = options;
	const buffer$$1 = encoding === 'buffer';
	let objectMode = false;

	if (array) {
		objectMode = !(encoding || buffer$$1);
	} else {
		encoding = encoding || 'utf8';
	}

	if (buffer$$1) {
		encoding = null;
	}

	let len = 0;
	const ret = [];
	const stream$$1 = new PassThrough$2({objectMode});

	if (encoding) {
		stream$$1.setEncoding(encoding);
	}

	stream$$1.on('data', chunk => {
		ret.push(chunk);

		if (objectMode) {
			len = ret.length;
		} else {
			len += chunk.length;
		}
	});

	stream$$1.getBufferedValue = () => {
		if (array) {
			return ret;
		}

		return buffer$$1 ? Buffer.concat(ret, len) : ret.join('');
	};

	stream$$1.getBufferedLength = () => len;

	return stream$$1;
};

class MaxBufferError extends Error {
	constructor() {
		super('maxBuffer exceeded');
		this.name = 'MaxBufferError';
	}
}

function getStream(inputStream, options) {
	if (!inputStream) {
		return Promise.reject(new Error('Expected a stream'));
	}

	options = Object.assign({maxBuffer: Infinity}, options);

	const {maxBuffer} = options;

	let stream$$1;
	return new Promise((resolve, reject) => {
		const rejectPromise = error => {
			if (error) { // A null check
				error.bufferedData = stream$$1.getBufferedValue();
			}
			reject(error);
		};

		stream$$1 = pump_1(inputStream, bufferStream(options), error => {
			if (error) {
				rejectPromise(error);
				return;
			}

			resolve();
		});

		stream$$1.on('data', () => {
			if (stream$$1.getBufferedLength() > maxBuffer) {
				rejectPromise(new MaxBufferError());
			}
		});
	}).then(() => stream$$1.getBufferedValue());
}

var getStream_1 = getStream;
var buffer$1 = (stream$$1, options) => getStream(stream$$1, Object.assign({}, options, {encoding: 'buffer'}));
var array = (stream$$1, options) => getStream(stream$$1, Object.assign({}, options, {array: true}));
var MaxBufferError_1 = MaxBufferError;
getStream_1.buffer = buffer$1;
getStream_1.array = array;
getStream_1.MaxBufferError = MaxBufferError_1;

// rfc7231 6.1
const statusCodeCacheableByDefault = [200, 203, 204, 206, 300, 301, 404, 405, 410, 414, 501];

// This implementation does not understand partial responses (206)
const understoodStatuses = [200, 203, 204, 300, 301, 302, 303, 307, 308, 404, 405, 410, 414, 501];

const hopByHopHeaders = {
    'date': true, // included, because we add Age update Date
    'connection':true, 'keep-alive':true, 'proxy-authenticate':true, 'proxy-authorization':true, 'te':true, 'trailer':true, 'transfer-encoding':true, 'upgrade':true
};
const excludedFromRevalidationUpdate = {
    // Since the old body is reused, it doesn't make sense to change properties of the body
    'content-length': true, 'content-encoding': true, 'transfer-encoding': true,
    'content-range': true,
};

function parseCacheControl(header) {
    const cc = {};
    if (!header) return cc;

    // TODO: When there is more than one value present for a given directive (e.g., two Expires header fields, multiple Cache-Control: max-age directives),
    // the directive's value is considered invalid. Caches are encouraged to consider responses that have invalid freshness information to be stale
    const parts = header.trim().split(/\s*,\s*/); // TODO: lame parsing
    for(const part of parts) {
        const [k,v] = part.split(/\s*=\s*/, 2);
        cc[k] = (v === undefined) ? true : v.replace(/^"|"$/g, ''); // TODO: lame unquoting
    }

    return cc;
}

function formatCacheControl(cc) {
    let parts = [];
    for(const k in cc) {
        const v = cc[k];
        parts.push(v === true ? k : k + '=' + v);
    }
    if (!parts.length) {
        return undefined;
    }
    return parts.join(', ');
}

var httpCacheSemantics = class CachePolicy {
    constructor(req, res, {shared, cacheHeuristic, immutableMinTimeToLive, ignoreCargoCult, trustServerDate, _fromObject} = {}) {
        if (_fromObject) {
            this._fromObject(_fromObject);
            return;
        }

        if (!res || !res.headers) {
            throw Error("Response headers missing");
        }
        this._assertRequestHasHeaders(req);

        this._responseTime = this.now();
        this._isShared = shared !== false;
        this._trustServerDate = undefined !== trustServerDate ? trustServerDate : true;
        this._cacheHeuristic = undefined !== cacheHeuristic ? cacheHeuristic : 0.1; // 10% matches IE
        this._immutableMinTtl = undefined !== immutableMinTimeToLive ? immutableMinTimeToLive : 24*3600*1000;

        this._status = 'status' in res ? res.status : 200;
        this._resHeaders = res.headers;
        this._rescc = parseCacheControl(res.headers['cache-control']);
        this._method = 'method' in req ? req.method : 'GET';
        this._url = req.url;
        this._host = req.headers.host;
        this._noAuthorization = !req.headers.authorization;
        this._reqHeaders = res.headers.vary ? req.headers : null; // Don't keep all request headers if they won't be used
        this._reqcc = parseCacheControl(req.headers['cache-control']);

        // Assume that if someone uses legacy, non-standard uncecessary options they don't understand caching,
        // so there's no point stricly adhering to the blindly copy&pasted directives.
        if (ignoreCargoCult && "pre-check" in this._rescc && "post-check" in this._rescc) {
            delete this._rescc['pre-check'];
            delete this._rescc['post-check'];
            delete this._rescc['no-cache'];
            delete this._rescc['no-store'];
            delete this._rescc['must-revalidate'];
            this._resHeaders = Object.assign({}, this._resHeaders, {'cache-control': formatCacheControl(this._rescc)});
            delete this._resHeaders.expires;
            delete this._resHeaders.pragma;
        }

        // When the Cache-Control header field is not present in a request, caches MUST consider the no-cache request pragma-directive
        // as having the same effect as if "Cache-Control: no-cache" were present (see Section 5.2.1).
        if (!res.headers['cache-control'] && /no-cache/.test(res.headers.pragma)) {
            this._rescc['no-cache'] = true;
        }
    }

    now() {
        return Date.now();
    }

    storable() {
        // The "no-store" request directive indicates that a cache MUST NOT store any part of either this request or any response to it.
        return !!(!this._reqcc['no-store'] &&
            // A cache MUST NOT store a response to any request, unless:
            // The request method is understood by the cache and defined as being cacheable, and
            ('GET' === this._method || 'HEAD' === this._method || ('POST' === this._method && this._hasExplicitExpiration())) &&
            // the response status code is understood by the cache, and
            understoodStatuses.indexOf(this._status) !== -1 &&
            // the "no-store" cache directive does not appear in request or response header fields, and
            !this._rescc['no-store'] &&
            // the "private" response directive does not appear in the response, if the cache is shared, and
            (!this._isShared || !this._rescc.private) &&
            // the Authorization header field does not appear in the request, if the cache is shared,
            (!this._isShared || this._noAuthorization || this._allowsStoringAuthenticated()) &&
            // the response either:
            (
                // contains an Expires header field, or
                this._resHeaders.expires ||
                // contains a max-age response directive, or
                // contains a s-maxage response directive and the cache is shared, or
                // contains a public response directive.
                this._rescc.public || this._rescc['max-age'] || this._rescc['s-maxage'] ||
                // has a status code that is defined as cacheable by default
                statusCodeCacheableByDefault.indexOf(this._status) !== -1
            ));
    }

    _hasExplicitExpiration() {
        // 4.2.1 Calculating Freshness Lifetime
        return (this._isShared && this._rescc['s-maxage']) ||
            this._rescc['max-age'] ||
            this._resHeaders.expires;
    }

    _assertRequestHasHeaders(req) {
        if (!req || !req.headers) {
            throw Error("Request headers missing");
        }
    }

    satisfiesWithoutRevalidation(req) {
        this._assertRequestHasHeaders(req);

        // When presented with a request, a cache MUST NOT reuse a stored response, unless:
        // the presented request does not contain the no-cache pragma (Section 5.4), nor the no-cache cache directive,
        // unless the stored response is successfully validated (Section 4.3), and
        const requestCC = parseCacheControl(req.headers['cache-control']);
        if (requestCC['no-cache'] || /no-cache/.test(req.headers.pragma)) {
            return false;
        }

        if (requestCC['max-age'] && this.age() > requestCC['max-age']) {
            return false;
        }

        if (requestCC['min-fresh'] && this.timeToLive() < 1000*requestCC['min-fresh']) {
            return false;
        }

        // the stored response is either:
        // fresh, or allowed to be served stale
        if (this.stale()) {
            const allowsStale = requestCC['max-stale'] && !this._rescc['must-revalidate'] && (true === requestCC['max-stale'] || requestCC['max-stale'] > this.age() - this.maxAge());
            if (!allowsStale) {
                return false;
            }
        }

        return this._requestMatches(req, false);
    }

    _requestMatches(req, allowHeadMethod) {
        // The presented effective request URI and that of the stored response match, and
        return (!this._url || this._url === req.url) &&
            (this._host === req.headers.host) &&
            // the request method associated with the stored response allows it to be used for the presented request, and
            (!req.method || this._method === req.method || (allowHeadMethod && 'HEAD' === req.method)) &&
            // selecting header fields nominated by the stored response (if any) match those presented, and
            this._varyMatches(req);
    }

    _allowsStoringAuthenticated() {
        //  following Cache-Control response directives (Section 5.2.2) have such an effect: must-revalidate, public, and s-maxage.
        return this._rescc['must-revalidate'] || this._rescc.public || this._rescc['s-maxage'];
    }

    _varyMatches(req) {
        if (!this._resHeaders.vary) {
            return true;
        }

        // A Vary header field-value of "*" always fails to match
        if (this._resHeaders.vary === '*') {
            return false;
        }

        const fields = this._resHeaders.vary.trim().toLowerCase().split(/\s*,\s*/);
        for(const name of fields) {
            if (req.headers[name] !== this._reqHeaders[name]) return false;
        }
        return true;
    }

    _copyWithoutHopByHopHeaders(inHeaders) {
        const headers = {};
        for(const name in inHeaders) {
            if (hopByHopHeaders[name]) continue;
            headers[name] = inHeaders[name];
        }
        // 9.1.  Connection
        if (inHeaders.connection) {
            const tokens = inHeaders.connection.trim().split(/\s*,\s*/);
            for(const name of tokens) {
                delete headers[name];
            }
        }
        if (headers.warning) {
            const warnings = headers.warning.split(/,/).filter(warning => {
                return !/^\s*1[0-9][0-9]/.test(warning);
            });
            if (!warnings.length) {
                delete headers.warning;
            } else {
                headers.warning = warnings.join(',').trim();
            }
        }
        return headers;
    }

    responseHeaders() {
        const headers = this._copyWithoutHopByHopHeaders(this._resHeaders);
        const age = this.age();

        // A cache SHOULD generate 113 warning if it heuristically chose a freshness
        // lifetime greater than 24 hours and the response's age is greater than 24 hours.
        if (age > 3600*24 && !this._hasExplicitExpiration() && this.maxAge() > 3600*24) {
            headers.warning = (headers.warning ? `${headers.warning}, ` : '') + '113 - "rfc7234 5.5.4"';
        }
        headers.age = `${Math.round(age)}`;
        headers.date = new Date(this.now()).toUTCString();
        return headers;
    }

    /**
     * Value of the Date response header or current time if Date was demed invalid
     * @return timestamp
     */
    date() {
        if (this._trustServerDate) {
            return this._serverDate();
        }
        return this._responseTime;
    }

    _serverDate() {
        const dateValue = Date.parse(this._resHeaders.date);
        if (isFinite(dateValue)) {
            const maxClockDrift = 8*3600*1000;
            const clockDrift = Math.abs(this._responseTime - dateValue);
            if (clockDrift < maxClockDrift) {
                return dateValue;
            }
        }
        return this._responseTime;
    }

    /**
     * Value of the Age header, in seconds, updated for the current time.
     * May be fractional.
     *
     * @return Number
     */
    age() {
        let age = Math.max(0, (this._responseTime - this.date())/1000);
        if (this._resHeaders.age) {
            let ageValue = this._ageValue();
            if (ageValue > age) age = ageValue;
        }

        const residentTime = (this.now() - this._responseTime)/1000;
        return age + residentTime;
    }

    _ageValue() {
        const ageValue = parseInt(this._resHeaders.age);
        return isFinite(ageValue) ? ageValue : 0;
    }

    /**
     * Value of applicable max-age (or heuristic equivalent) in seconds. This counts since response's `Date`.
     *
     * For an up-to-date value, see `timeToLive()`.
     *
     * @return Number
     */
    maxAge() {
        if (!this.storable() || this._rescc['no-cache']) {
            return 0;
        }

        // Shared responses with cookies are cacheable according to the RFC, but IMHO it'd be unwise to do so by default
        // so this implementation requires explicit opt-in via public header
        if (this._isShared && (this._resHeaders['set-cookie'] && !this._rescc.public && !this._rescc.immutable)) {
            return 0;
        }

        if (this._resHeaders.vary === '*') {
            return 0;
        }

        if (this._isShared) {
            if (this._rescc['proxy-revalidate']) {
                return 0;
            }
            // if a response includes the s-maxage directive, a shared cache recipient MUST ignore the Expires field.
            if (this._rescc['s-maxage']) {
                return parseInt(this._rescc['s-maxage'], 10);
            }
        }

        // If a response includes a Cache-Control field with the max-age directive, a recipient MUST ignore the Expires field.
        if (this._rescc['max-age']) {
            return parseInt(this._rescc['max-age'], 10);
        }

        const defaultMinTtl = this._rescc.immutable ? this._immutableMinTtl : 0;

        const dateValue = this._serverDate();
        if (this._resHeaders.expires) {
            const expires = Date.parse(this._resHeaders.expires);
            // A cache recipient MUST interpret invalid date formats, especially the value "0", as representing a time in the past (i.e., "already expired").
            if (Number.isNaN(expires) || expires < dateValue) {
                return 0;
            }
            return Math.max(defaultMinTtl, (expires - dateValue)/1000);
        }

        if (this._resHeaders['last-modified']) {
            const lastModified = Date.parse(this._resHeaders['last-modified']);
            if (isFinite(lastModified) && dateValue > lastModified) {
                return Math.max(defaultMinTtl, (dateValue - lastModified)/1000 * this._cacheHeuristic);
            }
        }

        return defaultMinTtl;
    }

    timeToLive() {
        return Math.max(0, this.maxAge() - this.age())*1000;
    }

    stale() {
        return this.maxAge() <= this.age();
    }

    static fromObject(obj) {
        return new this(undefined, undefined, {_fromObject:obj});
    }

    _fromObject(obj) {
        if (this._responseTime) throw Error("Reinitialized");
        if (!obj || obj.v !== 1) throw Error("Invalid serialization");

        this._responseTime = obj.t;
        this._isShared = obj.sh;
        this._cacheHeuristic = obj.ch;
        this._immutableMinTtl = obj.imm !== undefined ? obj.imm : 24*3600*1000;
        this._status = obj.st;
        this._resHeaders = obj.resh;
        this._rescc = obj.rescc;
        this._method = obj.m;
        this._url = obj.u;
        this._host = obj.h;
        this._noAuthorization = obj.a;
        this._reqHeaders = obj.reqh;
        this._reqcc = obj.reqcc;
    }

    toObject() {
        return {
            v:1,
            t: this._responseTime,
            sh: this._isShared,
            ch: this._cacheHeuristic,
            imm: this._immutableMinTtl,
            st: this._status,
            resh: this._resHeaders,
            rescc: this._rescc,
            m: this._method,
            u: this._url,
            h: this._host,
            a: this._noAuthorization,
            reqh: this._reqHeaders,
            reqcc: this._reqcc,
        };
    }

    /**
     * Headers for sending to the origin server to revalidate stale response.
     * Allows server to return 304 to allow reuse of the previous response.
     *
     * Hop by hop headers are always stripped.
     * Revalidation headers may be added or removed, depending on request.
     */
    revalidationHeaders(incomingReq) {
        this._assertRequestHasHeaders(incomingReq);
        const headers = this._copyWithoutHopByHopHeaders(incomingReq.headers);

        // This implementation does not understand range requests
        delete headers['if-range'];

        if (!this._requestMatches(incomingReq, true) || !this.storable()) { // revalidation allowed via HEAD
            // not for the same resource, or wasn't allowed to be cached anyway
            delete headers['if-none-match'];
            delete headers['if-modified-since'];
            return headers;
        }

        /* MUST send that entity-tag in any cache validation request (using If-Match or If-None-Match) if an entity-tag has been provided by the origin server. */
        if (this._resHeaders.etag) {
            headers['if-none-match'] = headers['if-none-match'] ? `${headers['if-none-match']}, ${this._resHeaders.etag}` : this._resHeaders.etag;
        }

        // Clients MAY issue simple (non-subrange) GET requests with either weak validators or strong validators. Clients MUST NOT use weak validators in other forms of request.
        const forbidsWeakValidators = headers['accept-ranges'] || headers['if-match'] || headers['if-unmodified-since'] || (this._method && this._method != 'GET');

        /* SHOULD send the Last-Modified value in non-subrange cache validation requests (using If-Modified-Since) if only a Last-Modified value has been provided by the origin server.
        Note: This implementation does not understand partial responses (206) */
        if (forbidsWeakValidators) {
            delete headers['if-modified-since'];

            if (headers['if-none-match']) {
                const etags = headers['if-none-match'].split(/,/).filter(etag => {
                    return !/^\s*W\//.test(etag);
                });
                if (!etags.length) {
                    delete headers['if-none-match'];
                } else {
                    headers['if-none-match'] = etags.join(',').trim();
                }
            }
        } else if (this._resHeaders['last-modified'] && !headers['if-modified-since']) {
            headers['if-modified-since'] = this._resHeaders['last-modified'];
        }

        return headers;
    }

    /**
     * Creates new CachePolicy with information combined from the previews response,
     * and the new revalidation response.
     *
     * Returns {policy, modified} where modified is a boolean indicating
     * whether the response body has been modified, and old cached body can't be used.
     *
     * @return {Object} {policy: CachePolicy, modified: Boolean}
     */
    revalidatedPolicy(request, response) {
        this._assertRequestHasHeaders(request);
        if (!response || !response.headers) {
            throw Error("Response headers missing");
        }

        // These aren't going to be supported exactly, since one CachePolicy object
        // doesn't know about all the other cached objects.
        let matches = false;
        if (response.status !== undefined && response.status != 304) {
            matches = false;
        } else if (response.headers.etag && !/^\s*W\//.test(response.headers.etag)) {
            // "All of the stored responses with the same strong validator are selected.
            // If none of the stored responses contain the same strong validator,
            // then the cache MUST NOT use the new response to update any stored responses."
            matches = this._resHeaders.etag && this._resHeaders.etag.replace(/^\s*W\//,'') === response.headers.etag;
        } else if (this._resHeaders.etag && response.headers.etag) {
            // "If the new response contains a weak validator and that validator corresponds
            // to one of the cache's stored responses,
            // then the most recent of those matching stored responses is selected for update."
            matches = this._resHeaders.etag.replace(/^\s*W\//,'') === response.headers.etag.replace(/^\s*W\//,'');
        } else if (this._resHeaders['last-modified']) {
            matches = this._resHeaders['last-modified'] === response.headers['last-modified'];
        } else {
            // If the new response does not include any form of validator (such as in the case where
            // a client generates an If-Modified-Since request from a source other than the Last-Modified
            // response header field), and there is only one stored response, and that stored response also
            // lacks a validator, then that stored response is selected for update.
            if (!this._resHeaders.etag && !this._resHeaders['last-modified'] &&
                !response.headers.etag && !response.headers['last-modified']) {
                matches = true;
            }
        }

        if (!matches) {
            return {
                policy: new this.constructor(request, response),
                modified: true,
            }
        }

        // use other header fields provided in the 304 (Not Modified) response to replace all instances
        // of the corresponding header fields in the stored response.
        const headers = {};
        for(const k in this._resHeaders) {
            headers[k] = k in response.headers && !excludedFromRevalidationUpdate[k] ? response.headers[k] : this._resHeaders[k];
        }

        const newResponse = Object.assign({}, response, {
            status: this._status,
            method: this._method,
            headers,
        });
        return {
            policy: new this.constructor(request, newResponse, {shared: this._isShared, cacheHeuristic: this._cacheHeuristic, immutableMinTimeToLive: this._immutableMinTtl, trustServerDate: this._trustServerDate}),
            modified: false,
        };
    }
};

var lowercaseKeys = function (obj) {
	var ret = {};
	var keys = Object.keys(Object(obj));

	for (var i = 0; i < keys.length; i++) {
		ret[keys[i].toLowerCase()] = obj[keys[i]];
	}

	return ret;
};

const Readable$2 = stream.Readable;


class Response extends Readable$2 {
	constructor(statusCode, headers, body, url$$1) {
		if (typeof statusCode !== 'number') {
			throw new TypeError('Argument `statusCode` should be a number');
		}
		if (typeof headers !== 'object') {
			throw new TypeError('Argument `headers` should be an object');
		}
		if (!(body instanceof Buffer)) {
			throw new TypeError('Argument `body` should be a buffer');
		}
		if (typeof url$$1 !== 'string') {
			throw new TypeError('Argument `url` should be a string');
		}

		super();
		this.statusCode = statusCode;
		this.headers = lowercaseKeys(headers);
		this.body = body;
		this.url = url$$1;
	}

	_read() {
		this.push(this.body);
		this.push(null);
	}
}

var src = Response;

// We define these manually to ensure they're always copied
// even if they would move up the prototype chain
// https://nodejs.org/api/http.html#http_class_http_incomingmessage
const knownProps = [
	'destroy',
	'setTimeout',
	'socket',
	'headers',
	'trailers',
	'rawHeaders',
	'statusCode',
	'httpVersion',
	'httpVersionMinor',
	'httpVersionMajor',
	'rawTrailers',
	'statusMessage'
];

var mimicResponse = (fromStream, toStream) => {
	const fromProps = new Set(Object.keys(fromStream).concat(knownProps));

	for (const prop of fromProps) {
		// Don't overwrite existing properties
		if (prop in toStream) {
			continue;
		}

		toStream[prop] = typeof fromStream[prop] === 'function' ? fromStream[prop].bind(fromStream) : fromStream[prop];
	}
};

const PassThrough$3 = stream.PassThrough;


const cloneResponse = response => {
	if (!(response && response.pipe)) {
		throw new TypeError('Parameter `response` must be a response stream.');
	}

	const clone = new PassThrough$3();
	mimicResponse(response, clone);

	return response.pipe(clone);
};

var src$1 = cloneResponse;

//TODO: handle reviver/dehydrate function like normal
//and handle indentation, like normal.
//if anyone needs this... please send pull request.

var stringify = function stringify (o) {
  if('undefined' == typeof o) return o

  if(o && Buffer.isBuffer(o))
    return JSON.stringify(':base64:' + o.toString('base64'))

  if(o && o.toJSON)
    o =  o.toJSON();

  if(o && 'object' === typeof o) {
    var s = '';
    var array = Array.isArray(o);
    s = array ? '[' : '{';
    var first = true;

    for(var k in o) {
      var ignore = 'function' == typeof o[k] || (!array && 'undefined' === typeof o[k]);
      if(Object.hasOwnProperty.call(o, k) && !ignore) {
        if(!first)
          s += ',';
        first = false;
        if (array) {
          if(o[k] == undefined)
            s += 'null';
          else
            s += stringify(o[k]);
        } else if (o[k] !== void(0)) {
          s += stringify(k) + ':' + stringify(o[k]);
        }
      }
    }

    s += array ? ']' : '}';

    return s
  } else if ('string' === typeof o) {
    return JSON.stringify(/^:/.test(o) ? ':' + o : o)
  } else if ('undefined' === typeof o) {
    return 'null';
  } else
    return JSON.stringify(o)
};

var parse$1 = function (s) {
  return JSON.parse(s, function (key, value) {
    if('string' === typeof value) {
      if(/^:base64:/.test(value))
        return new Buffer(value.substring(8), 'base64')
      else
        return /^:/.test(value) ? value.substring(1) : value 
    }
    return value
  })
};

var jsonBuffer = {
	stringify: stringify,
	parse: parse$1
};

const loadStore = opts => {
	const adapters = {
		redis: '@keyv/redis',
		mongodb: '@keyv/mongo',
		mongo: '@keyv/mongo',
		sqlite: '@keyv/sqlite',
		postgresql: '@keyv/postgres',
		postgres: '@keyv/postgres',
		mysql: '@keyv/mysql'
	};
	if (opts.adapter || opts.uri) {
		const adapter = opts.adapter || /^[^:]*/.exec(opts.uri)[0];
		return new (commonjsRequire(adapters[adapter]))(opts);
	}
	return new Map();
};

class Keyv extends events {
	constructor(uri, opts) {
		super();
		this.opts = Object.assign(
			{
				namespace: 'keyv',
				serialize: jsonBuffer.stringify,
				deserialize: jsonBuffer.parse
			},
			(typeof uri === 'string') ? { uri } : uri,
			opts
		);

		if (!this.opts.store) {
			const adapterOpts = Object.assign({}, this.opts);
			this.opts.store = loadStore(adapterOpts);
		}

		if (typeof this.opts.store.on === 'function') {
			this.opts.store.on('error', err => this.emit('error', err));
		}

		this.opts.store.namespace = this.opts.namespace;
	}

	_getKeyPrefix(key) {
		return `${this.opts.namespace}:${key}`;
	}

	get(key) {
		key = this._getKeyPrefix(key);
		const store = this.opts.store;
		return Promise.resolve()
			.then(() => store.get(key))
			.then(data => {
				data = (typeof data === 'string') ? this.opts.deserialize(data) : data;
				if (data === undefined) {
					return undefined;
				}
				if (typeof data.expires === 'number' && Date.now() > data.expires) {
					this.delete(key);
					return undefined;
				}
				return data.value;
			});
	}

	set(key, value, ttl) {
		key = this._getKeyPrefix(key);
		if (typeof ttl === 'undefined') {
			ttl = this.opts.ttl;
		}
		if (ttl === 0) {
			ttl = undefined;
		}
		const store = this.opts.store;

		return Promise.resolve()
			.then(() => {
				const expires = (typeof ttl === 'number') ? (Date.now() + ttl) : null;
				value = { value, expires };
				return store.set(key, this.opts.serialize(value), ttl);
			})
			.then(() => true);
	}

	delete(key) {
		key = this._getKeyPrefix(key);
		const store = this.opts.store;
		return Promise.resolve()
			.then(() => store.delete(key));
	}

	clear() {
		const store = this.opts.store;
		return Promise.resolve()
			.then(() => store.clear());
	}
}

var src$2 = Keyv;

class CacheableRequest {
	constructor(request, cacheAdapter) {
		if (typeof request !== 'function') {
			throw new TypeError('Parameter `request` must be a function');
		}

		this.cache = new src$2({
			uri: typeof cacheAdapter === 'string' && cacheAdapter,
			store: typeof cacheAdapter !== 'string' && cacheAdapter,
			namespace: 'cacheable-request'
		});

		return this.createCacheableRequest(request);
	}

	createCacheableRequest(request) {
		return (opts, cb) => {
			let url$$1;
			if (typeof opts === 'string') {
				url$$1 = normalizeUrlObject(url.parse(opts));
				opts = {};
			} else if (opts instanceof url.URL) {
				url$$1 = normalizeUrlObject(url.parse(opts.toString()));
				opts = {};
			} else {
				const [pathname, ...searchParts] = (opts.path || '').split('?');
				const search = searchParts.length > 0 ?
					`?${searchParts.join('?')}` :
					'';
				url$$1 = normalizeUrlObject({ ...opts, pathname, search });
			}
			opts = {
				headers: {},
				method: 'GET',
				cache: true,
				strictTtl: false,
				automaticFailover: false,
				...opts,
				...urlObjectToRequestOptions(url$$1)
			};
			opts.headers = lowercaseKeys(opts.headers);

			const ee = new events();
			const normalizedUrlString = normalizeUrl(
				url.format(url$$1),
				{
					stripWWW: false,
					removeTrailingSlash: false
				}
			);
			const key = `${opts.method}:${normalizedUrlString}`;
			let revalidate = false;
			let madeRequest = false;

			const makeRequest = opts => {
				madeRequest = true;
				let requestErrored = false;
				let requestErrorCallback;

				const requestErrorPromise = new Promise(resolve => {
					requestErrorCallback = () => {
						requestErrored = true;
						resolve();
					};
				});

				const handler = response => {
					if (revalidate && !opts.forceRefresh) {
						response.status = response.statusCode;
						const revalidatedPolicy = httpCacheSemantics.fromObject(revalidate.cachePolicy).revalidatedPolicy(opts, response);
						if (!revalidatedPolicy.modified) {
							const headers = revalidatedPolicy.policy.responseHeaders();
							response = new src(response.statusCode, headers, revalidate.body, revalidate.url);
							response.cachePolicy = revalidatedPolicy.policy;
							response.fromCache = true;
						}
					}

					if (!response.fromCache) {
						response.cachePolicy = new httpCacheSemantics(opts, response, opts);
						response.fromCache = false;
					}

					let clonedResponse;
					if (opts.cache && response.cachePolicy.storable()) {
						clonedResponse = src$1(response);

						(async () => {
							try {
								const bodyPromise = getStream_1.buffer(response);

								await Promise.race([
									requestErrorPromise,
									new Promise(resolve => response.once('end', resolve))
								]);

								if (requestErrored) {
									return;
								}

								const body = await bodyPromise;

								const value = {
									cachePolicy: response.cachePolicy.toObject(),
									url: response.url,
									statusCode: response.fromCache ? revalidate.statusCode : response.statusCode,
									body
								};

								let ttl = opts.strictTtl ? response.cachePolicy.timeToLive() : undefined;
								if (opts.maxTtl) {
									ttl = ttl ? Math.min(ttl, opts.maxTtl) : opts.maxTtl;
								}

								await this.cache.set(key, value, ttl);
							} catch (err) {
								ee.emit('error', new CacheableRequest.CacheError(err));
							}
						})();
					} else if (opts.cache && revalidate) {
						(async () => {
							try {
								await this.cache.delete(key);
							} catch (err) {
								ee.emit('error', new CacheableRequest.CacheError(err));
							}
						})();
					}

					ee.emit('response', clonedResponse || response);
					if (typeof cb === 'function') {
						cb(clonedResponse || response);
					}
				};

				try {
					const req = request(opts, handler);
					req.once('error', requestErrorCallback);
					req.once('abort', requestErrorCallback);
					ee.emit('request', req);
				} catch (err) {
					ee.emit('error', new CacheableRequest.RequestError(err));
				}
			};

			(async () => {
				const get = async opts => {
					await Promise.resolve();

					const cacheEntry = opts.cache ? await this.cache.get(key) : undefined;
					if (typeof cacheEntry === 'undefined') {
						return makeRequest(opts);
					}

					const policy = httpCacheSemantics.fromObject(cacheEntry.cachePolicy);
					if (policy.satisfiesWithoutRevalidation(opts) && !opts.forceRefresh) {
						const headers = policy.responseHeaders();
						const response = new src(cacheEntry.statusCode, headers, cacheEntry.body, cacheEntry.url);
						response.cachePolicy = policy;
						response.fromCache = true;

						ee.emit('response', response);
						if (typeof cb === 'function') {
							cb(response);
						}
					} else {
						revalidate = cacheEntry;
						opts.headers = policy.revalidationHeaders(opts);
						makeRequest(opts);
					}
				};

				this.cache.on('error', err => ee.emit('error', new CacheableRequest.CacheError(err)));

				try {
					await get(opts);
				} catch (err) {
					if (opts.automaticFailover && !madeRequest) {
						makeRequest(opts);
					}
					ee.emit('error', new CacheableRequest.CacheError(err));
				}
			})();

			return ee;
		};
	}
}

function urlObjectToRequestOptions(url$$1) {
	const options = { ...url$$1 };
	options.path = `${url$$1.pathname || '/'}${url$$1.search || ''}`;
	delete options.pathname;
	delete options.search;
	return options;
}

function normalizeUrlObject(url$$1) {
	// If url was parsed by url.parse or new URL:
	// - hostname will be set
	// - host will be hostname[:port]
	// - port will be set if it was explicit in the parsed string
	// Otherwise, url was from request options:
	// - hostname or host may be set
	// - host shall not have port encoded
	return {
		protocol: url$$1.protocol,
		auth: url$$1.auth,
		hostname: url$$1.hostname || url$$1.host || 'localhost',
		port: url$$1.port,
		pathname: url$$1.pathname,
		search: url$$1.search
	};
}

CacheableRequest.RequestError = class extends Error {
	constructor(err) {
		super(err.message);
		this.name = 'RequestError';
		Object.assign(this, err);
	}
};

CacheableRequest.CacheError = class extends Error {
	constructor(err) {
		super(err.message);
		this.name = 'CacheError';
		Object.assign(this, err);
	}
};

var src$3 = CacheableRequest;

const {Readable: Readable$3} = stream;

var toReadableStream = input => (
	new Readable$3({
		read() {
			this.push(input);
			this.push(null);
		}
	})
);

// Inspired by https://github.com/nodejs/node/blob/949e8851484c016c07f6cc9e5889f0f2e56baf2a/lib/_http_client.js#L706
var deferToConnect = (socket, method, ...args) => {
	let call;
	if (typeof method === 'function') {
		call = method;
	} else {
		call = () => socket[method](...args);
	}

	if (socket.writable && !socket.connecting) {
		call();
	} else {
		socket.once('connect', call);
	}
};

var source = request => {
	const timings = {
		start: Date.now(),
		socket: null,
		lookup: null,
		connect: null,
		upload: null,
		response: null,
		end: null,
		error: null,
		phases: {
			wait: null,
			dns: null,
			tcp: null,
			request: null,
			firstByte: null,
			download: null,
			total: null
		}
	};

	const handleError = origin => {
		const emit = origin.emit.bind(origin);
		origin.emit = (event, ...args) => {
			// Catches the `error` event
			if (event === 'error') {
				timings.error = Date.now();
				timings.phases.total = timings.error - timings.start;

				origin.emit = emit;
			}

			// Saves the original behavior
			return emit(event, ...args);
		};
	};

	let uploadFinished = false;
	const onUpload = () => {
		timings.upload = Date.now();
		timings.phases.request = timings.upload - timings.connect;
	};

	handleError(request);

	request.once('socket', socket => {
		timings.socket = Date.now();
		timings.phases.wait = timings.socket - timings.start;

		const lookupListener = () => {
			timings.lookup = Date.now();
			timings.phases.dns = timings.lookup - timings.socket;
		};

		socket.once('lookup', lookupListener);

		deferToConnect(socket, () => {
			timings.connect = Date.now();

			if (timings.lookup === null) {
				socket.removeListener('lookup', lookupListener);
				timings.lookup = timings.connect;
				timings.phases.dns = timings.lookup - timings.socket;
			}

			timings.phases.tcp = timings.connect - timings.lookup;

			if (uploadFinished && !timings.upload) {
				onUpload();
			}
		});
	});

	request.once('finish', () => {
		uploadFinished = true;

		if (timings.connect) {
			onUpload();
		}
	});

	request.once('response', response => {
		timings.response = Date.now();
		timings.phases.firstByte = timings.response - timings.upload;

		handleError(response);

		response.once('end', () => {
			timings.end = Date.now();
			timings.phases.download = timings.end - timings.response;
			timings.phases.total = timings.end - timings.start;
		});
	});

	return timings;
};

class TimeoutError$1 extends Error {
	constructor(threshold, event) {
		super(`Timeout awaiting '${event}' for ${threshold}ms`);
		this.name = 'TimeoutError';
		this.code = 'ETIMEDOUT';
		this.event = event;
	}
}

const reentry = Symbol('reentry');

const noop$5 = () => {};

var timedOut = (request, delays, options) => {
	/* istanbul ignore next: this makes sure timed-out isn't called twice */
	if (request[reentry]) {
		return;
	}

	request[reentry] = true;

	let stopNewTimeouts = false;

	const addTimeout = (delay, callback, ...args) => {
		// An error had been thrown before. Going further would result in uncaught errors.
		// See https://github.com/sindresorhus/got/issues/631#issuecomment-435675051
		if (stopNewTimeouts) {
			return noop$5;
		}

		// Event loop order is timers, poll, immediates.
		// The timed event may emit during the current tick poll phase, so
		// defer calling the handler until the poll phase completes.
		let immediate;
		const timeout = setTimeout(() => {
			immediate = setImmediate(callback, delay, ...args);
			/* istanbul ignore next: added in node v9.7.0 */
			if (immediate.unref) {
				immediate.unref();
			}
		}, delay);

		/* istanbul ignore next: in order to support electron renderer */
		if (timeout.unref) {
			timeout.unref();
		}

		const cancel = () => {
			clearTimeout(timeout);
			clearImmediate(immediate);
		};

		cancelers.push(cancel);

		return cancel;
	};

	const {host, hostname} = options;
	const timeoutHandler = (delay, event) => {
		request.emit('error', new TimeoutError$1(delay, event));
		request.once('error', () => {}); // Ignore the `socket hung up` error made by request.abort()

		request.abort();
	};

	const cancelers = [];
	const cancelTimeouts = () => {
		stopNewTimeouts = true;
		cancelers.forEach(cancelTimeout => cancelTimeout());
	};

	request.once('error', cancelTimeouts);
	request.once('response', response => {
		response.once('end', cancelTimeouts);
	});

	if (delays.request !== undefined) {
		addTimeout(delays.request, timeoutHandler, 'request');
	}

	if (delays.socket !== undefined) {
		request.setTimeout(delays.socket, () => {
			timeoutHandler(delays.socket, 'socket');
		});

		cancelers.push(() => request.setTimeout(0));
	}

	if (delays.lookup !== undefined && !request.socketPath && !net.isIP(hostname || host)) {
		request.once('socket', socket => {
			/* istanbul ignore next: hard to test */
			if (socket.connecting) {
				const cancelTimeout = addTimeout(delays.lookup, timeoutHandler, 'lookup');
				socket.once('lookup', cancelTimeout);
			}
		});
	}

	if (delays.connect !== undefined) {
		request.once('socket', socket => {
			/* istanbul ignore next: hard to test */
			if (socket.connecting) {
				const timeConnect = () => addTimeout(delays.connect, timeoutHandler, 'connect');

				if (request.socketPath || net.isIP(hostname || host)) {
					socket.once('connect', timeConnect());
				} else {
					socket.once('lookup', error => {
						if (error === null) {
							socket.once('connect', timeConnect());
						}
					});
				}
			}
		});
	}

	if (delays.secureConnect !== undefined && options.protocol === 'https:') {
		request.once('socket', socket => {
			/* istanbul ignore next: hard to test */
			if (socket.connecting) {
				socket.once('connect', () => {
					const cancelTimeout = addTimeout(delays.secureConnect, timeoutHandler, 'secureConnect');
					socket.once('secureConnect', cancelTimeout);
				});
			}
		});
	}

	if (delays.send !== undefined) {
		request.once('socket', socket => {
			const timeRequest = () => addTimeout(delays.send, timeoutHandler, 'send');
			/* istanbul ignore next: hard to test */
			if (socket.connecting) {
				socket.once('connect', () => {
					request.once('upload-complete', timeRequest());
				});
			} else {
				request.once('upload-complete', timeRequest());
			}
		});
	}

	if (delays.response !== undefined) {
		request.once('upload-complete', () => {
			const cancelTimeout = addTimeout(delays.response, timeoutHandler, 'response');
			request.once('response', cancelTimeout);
		});
	}
};

var TimeoutError_1 = TimeoutError$1;
timedOut.TimeoutError = TimeoutError_1;

var isFormData = body => dist.nodeStream(body) && dist.function(body.getBoundary);

var getBodySize = async options => {
	const {body} = options;

	if (options.headers['content-length']) {
		return Number(options.headers['content-length']);
	}

	if (!body && !options.stream) {
		return 0;
	}

	if (dist.string(body)) {
		return Buffer.byteLength(body);
	}

	if (isFormData(body)) {
		return util.promisify(body.getLength.bind(body))();
	}

	if (body instanceof fs.ReadStream) {
		const {size} = await util.promisify(fs.stat)(body.path);
		return size;
	}

	return null;
};

const PassThrough$4 = stream.PassThrough;



var decompressResponse = response => {
	// TODO: Use Array#includes when targeting Node.js 6
	if (['gzip', 'deflate'].indexOf(response.headers['content-encoding']) === -1) {
		return response;
	}

	const unzip = zlib.createUnzip();
	const stream$$1 = new PassThrough$4();

	mimicResponse(response, stream$$1);

	unzip.on('error', err => {
		if (err.code === 'Z_BUF_ERROR') {
			stream$$1.end();
			return;
		}

		stream$$1.emit('error', err);
	});

	response.pipe(unzip).pipe(stream$$1);

	return stream$$1;
};

const {Transform: Transform$3} = stream;

var progress = {
	download(response, emitter, downloadBodySize) {
		let downloaded = 0;

		return new Transform$3({
			transform(chunk, encoding, callback) {
				downloaded += chunk.length;

				const percent = downloadBodySize ? downloaded / downloadBodySize : 0;

				// Let `flush()` be responsible for emitting the last event
				if (percent < 1) {
					emitter.emit('downloadProgress', {
						percent,
						transferred: downloaded,
						total: downloadBodySize
					});
				}

				callback(null, chunk);
			},

			flush(callback) {
				emitter.emit('downloadProgress', {
					percent: 1,
					transferred: downloaded,
					total: downloadBodySize
				});

				callback();
			}
		});
	},

	upload(request, emitter, uploadBodySize) {
		const uploadEventFrequency = 150;
		let uploaded = 0;
		let progressInterval;

		emitter.emit('uploadProgress', {
			percent: 0,
			transferred: 0,
			total: uploadBodySize
		});

		request.once('error', () => {
			clearInterval(progressInterval);
		});

		request.once('response', () => {
			clearInterval(progressInterval);

			emitter.emit('uploadProgress', {
				percent: 1,
				transferred: uploaded,
				total: uploadBodySize
			});
		});

		request.once('socket', socket => {
			const onSocketConnect = () => {
				progressInterval = setInterval(() => {
					const lastUploaded = uploaded;
					/* istanbul ignore next: see #490 (occurs randomly!) */
					const headersSize = request._header ? Buffer.byteLength(request._header) : 0;
					uploaded = socket.bytesWritten - headersSize;

					// Don't emit events with unchanged progress and
					// prevent last event from being emitted, because
					// it's emitted when `response` is emitted
					if (uploaded === lastUploaded || uploaded === uploadBodySize) {
						return;
					}

					emitter.emit('uploadProgress', {
						percent: uploadBodySize ? uploaded / uploadBodySize : 0,
						transferred: uploaded,
						total: uploadBodySize
					});
				}, uploadEventFrequency);
			};

			/* istanbul ignore next: hard to test */
			if (socket.connecting) {
				socket.once('connect', onSocketConnect);
			} else if (socket.writable) {
				// The socket is being reused from pool,
				// so the connect event will not be emitted
				onSocketConnect();
			}
		});
	}
};

var getResponse = (response, options, emitter) => {
	const downloadBodySize = Number(response.headers['content-length']) || null;

	const progressStream = progress.download(response, emitter, downloadBodySize);

	mimicResponse(response, progressStream);

	const newResponse = options.decompress === true &&
		dist.function(decompressResponse) &&
		options.method !== 'HEAD' ? decompressResponse(progressStream) : progressStream;

	if (!options.decompress && ['gzip', 'deflate'].includes(response.headers['content-encoding'])) {
		options.encoding = null;
	}

	emitter.emit('response', newResponse);

	emitter.emit('downloadProgress', {
		percent: 0,
		transferred: 0,
		total: downloadBodySize
	});

	response.pipe(progressStream);
};

var urlToOptions = url$$1 => {
	const options = {
		protocol: url$$1.protocol,
		hostname: url$$1.hostname.startsWith('[') ? url$$1.hostname.slice(1, -1) : url$$1.hostname,
		hash: url$$1.hash,
		search: url$$1.search,
		pathname: url$$1.pathname,
		href: url$$1.href
	};

	if (dist.string(url$$1.port) && url$$1.port.length > 0) {
		options.port = Number(url$$1.port);
	}

	if (url$$1.username || url$$1.password) {
		options.auth = `${url$$1.username}:${url$$1.password}`;
	}

	options.path = dist.null(url$$1.search) ? url$$1.pathname : `${url$$1.pathname}${url$$1.search}`;

	return options;
};

const {URL: URL$1} = url; // TODO: Use the `URL` global when targeting Node.js 10




const urlLib = url;








const {CacheError: CacheError$1, UnsupportedProtocolError: UnsupportedProtocolError$1, MaxRedirectsError: MaxRedirectsError$1, RequestError: RequestError$1, TimeoutError: TimeoutError$2} = errors;


const getMethodRedirectCodes = new Set([300, 301, 302, 303, 304, 305, 307, 308]);
const allMethodRedirectCodes = new Set([300, 303, 307, 308]);

var requestAsEventEmitter = (options, input) => {
	const emitter = new events();
	const redirects = [];
	let currentRequest;
	let requestUrl;
	let redirectString;
	let uploadBodySize;
	let retryCount = 0;
	let shouldAbort = false;

	const setCookie = options.cookieJar ? util.promisify(options.cookieJar.setCookie.bind(options.cookieJar)) : null;
	const getCookieString = options.cookieJar ? util.promisify(options.cookieJar.getCookieString.bind(options.cookieJar)) : null;
	const agents = dist.object(options.agent) ? options.agent : null;

	const get = async options => {
		const currentUrl = redirectString || requestUrl;

		if (options.protocol !== 'http:' && options.protocol !== 'https:') {
			throw new UnsupportedProtocolError$1(options);
		}

		let fn;
		if (dist.function(options.request)) {
			fn = {request: options.request};
		} else {
			fn = options.protocol === 'https:' ? https : http;
		}

		if (agents) {
			const protocolName = options.protocol === 'https:' ? 'https' : 'http';
			options.agent = agents[protocolName] || options.agent;
		}

		/* istanbul ignore next: electron.net is broken */
		if (options.useElectronNet && process.versions.electron) {
			const r = ({x: commonjsRequire})['yx'.slice(1)]; // Trick webpack
			const electron = r('electron');
			fn = electron.net || electron.remote.net;
		}

		if (options.cookieJar) {
			const cookieString = await getCookieString(currentUrl, {});

			if (dist.nonEmptyString(cookieString)) {
				options.headers.cookie = cookieString;
			}
		}

		let timings;
		const handleResponse = async response => {
			try {
				/* istanbul ignore next: fixes https://github.com/electron/electron/blob/cbb460d47628a7a146adf4419ed48550a98b2923/lib/browser/api/net.js#L59-L65 */
				if (options.useElectronNet) {
					response = new Proxy(response, {
						get: (target, name) => {
							if (name === 'trailers' || name === 'rawTrailers') {
								return [];
							}

							const value = target[name];
							return dist.function(value) ? value.bind(target) : value;
						}
					});
				}

				const {statusCode} = response;
				response.url = currentUrl;
				response.requestUrl = requestUrl;
				response.retryCount = retryCount;
				response.timings = timings;
				response.redirectUrls = redirects;
				response.request = {
					gotOptions: options
				};

				const rawCookies = response.headers['set-cookie'];
				if (options.cookieJar && rawCookies) {
					await Promise.all(rawCookies.map(rawCookie => setCookie(rawCookie, response.url)));
				}

				if (options.followRedirect && 'location' in response.headers) {
					if (allMethodRedirectCodes.has(statusCode) || (getMethodRedirectCodes.has(statusCode) && (options.method === 'GET' || options.method === 'HEAD'))) {
						response.resume(); // We're being redirected, we don't care about the response.

						if (statusCode === 303) {
							// Server responded with "see other", indicating that the resource exists at another location,
							// and the client should request it from that location via GET or HEAD.
							options.method = 'GET';
						}

						if (redirects.length >= 10) {
							throw new MaxRedirectsError$1(statusCode, redirects, options);
						}

						// Handles invalid URLs. See https://github.com/sindresorhus/got/issues/604
						const redirectBuffer = Buffer.from(response.headers.location, 'binary').toString();
						const redirectURL = new URL$1(redirectBuffer, currentUrl);
						redirectString = redirectURL.toString();

						redirects.push(redirectString);

						const redirectOptions = {
							...options,
							...urlToOptions(redirectURL)
						};

						for (const hook of options.hooks.beforeRedirect) {
							// eslint-disable-next-line no-await-in-loop
							await hook(redirectOptions);
						}

						emitter.emit('redirect', response, redirectOptions);

						await get(redirectOptions);
						return;
					}
				}

				getResponse(response, options, emitter);
			} catch (error) {
				emitter.emit('error', error);
			}
		};

		const handleRequest = request => {
			if (shouldAbort) {
				request.once('error', () => {});
				request.abort();
				return;
			}

			currentRequest = request;

			request.once('error', error => {
				if (request.aborted) {
					return;
				}

				if (error instanceof timedOut.TimeoutError) {
					error = new TimeoutError$2(error, options);
				} else {
					error = new RequestError$1(error, options);
				}

				if (emitter.retry(error) === false) {
					emitter.emit('error', error);
				}
			});

			timings = source(request);

			progress.upload(request, emitter, uploadBodySize);

			if (options.gotTimeout) {
				timedOut(request, options.gotTimeout, options);
			}

			emitter.emit('request', request);

			const uploadComplete = () => {
				request.emit('upload-complete');
			};

			try {
				if (dist.nodeStream(options.body)) {
					options.body.once('end', uploadComplete);
					options.body.pipe(request);
					options.body = undefined;
				} else if (options.body) {
					request.end(options.body, uploadComplete);
				} else if (input && (options.method === 'POST' || options.method === 'PUT' || options.method === 'PATCH')) {
					input.once('end', uploadComplete);
					input.pipe(request);
				} else {
					request.end(uploadComplete);
				}
			} catch (error) {
				emitter.emit('error', new RequestError$1(error, options));
			}
		};

		if (options.cache) {
			const cacheableRequest = new src$3(fn.request, options.cache);
			const cacheRequest = cacheableRequest(options, handleResponse);

			cacheRequest.once('error', error => {
				if (error instanceof src$3.RequestError) {
					emitter.emit('error', new RequestError$1(error, options));
				} else {
					emitter.emit('error', new CacheError$1(error, options));
				}
			});

			cacheRequest.once('request', handleRequest);
		} else {
			// Catches errors thrown by calling fn.request(...)
			try {
				handleRequest(fn.request(options, handleResponse));
			} catch (error) {
				emitter.emit('error', new RequestError$1(error, options));
			}
		}
	};

	emitter.retry = error => {
		let backoff;

		try {
			backoff = options.retry.retries(++retryCount, error);
		} catch (error2) {
			emitter.emit('error', error2);
			return;
		}

		if (backoff) {
			const retry = async options => {
				try {
					for (const hook of options.hooks.beforeRetry) {
						// eslint-disable-next-line no-await-in-loop
						await hook(options, error, retryCount);
					}

					await get(options);
				} catch (error) {
					emitter.emit('error', error);
				}
			};

			setTimeout(retry, backoff, {...options, forceRefresh: true});
			return true;
		}

		return false;
	};

	emitter.abort = () => {
		if (currentRequest) {
			currentRequest.once('error', () => {});
			currentRequest.abort();
		} else {
			shouldAbort = true;
		}
	};

	setImmediate(async () => {
		try {
			// Convert buffer to stream to receive upload progress events (#322)
			const {body} = options;
			if (dist.buffer(body)) {
				options.body = toReadableStream(body);
				uploadBodySize = body.length;
			} else {
				uploadBodySize = await getBodySize(options);
			}

			if (dist.undefined(options.headers['content-length']) && dist.undefined(options.headers['transfer-encoding'])) {
				if ((uploadBodySize > 0 || options.method === 'PUT') && !dist.null(uploadBodySize)) {
					options.headers['content-length'] = uploadBodySize;
				}
			}

			for (const hook of options.hooks.beforeRequest) {
				// eslint-disable-next-line no-await-in-loop
				await hook(options);
			}

			requestUrl = options.href || (new URL$1(options.path, urlLib.format(options))).toString();

			await get(options);
		} catch (error) {
			emitter.emit('error', error);
		}
	});

	return emitter;
};

const {PassThrough: PassThrough$5} = stream;


const {HTTPError: HTTPError$1, ReadError: ReadError$1} = errors;

var asStream = options => {
	const input = new PassThrough$5();
	const output = new PassThrough$5();
	const proxy = duplexer3(input, output);
	const piped = new Set();
	let isFinished = false;

	options.retry.retries = () => 0;

	if (options.body) {
		proxy.write = () => {
			throw new Error('Got\'s stream is not writable when the `body` option is used');
		};
	}

	const emitter = requestAsEventEmitter(options, input);

	// Cancels the request
	proxy._destroy = emitter.abort;

	emitter.on('response', response => {
		const {statusCode} = response;

		response.on('error', error => {
			proxy.emit('error', new ReadError$1(error, options));
		});

		if (options.throwHttpErrors && statusCode !== 304 && (statusCode < 200 || statusCode > 299)) {
			proxy.emit('error', new HTTPError$1(response, options), null, response);
			return;
		}

		isFinished = true;

		response.pipe(output);

		for (const destination of piped) {
			if (destination.headersSent) {
				continue;
			}

			for (const [key, value] of Object.entries(response.headers)) {
				// Got gives *decompressed* data. Overriding `content-encoding` header would result in an error.
				// It's not possible to decompress already decompressed data, is it?
				const allowed = options.decompress ? key !== 'content-encoding' : true;
				if (allowed) {
					destination.setHeader(key, value);
				}
			}

			destination.statusCode = response.statusCode;
		}

		proxy.emit('response', response);
	});

	[
		'error',
		'request',
		'redirect',
		'uploadProgress',
		'downloadProgress'
	].forEach(event => emitter.on(event, (...args) => proxy.emit(event, ...args)));

	const pipe = proxy.pipe.bind(proxy);
	const unpipe = proxy.unpipe.bind(proxy);
	proxy.pipe = (destination, options) => {
		if (isFinished) {
			throw new Error('Failed to pipe. The response has been emitted already.');
		}

		const result = pipe(destination, options);

		if (Reflect.has(destination, 'setHeader')) {
			piped.add(destination);
		}

		return result;
	};
	proxy.unpipe = stream$$1 => {
		piped.delete(stream$$1);
		return unpipe(stream$$1);
	};

	return proxy;
};

var knownHookEvents = [
	'beforeRequest',
	'beforeRedirect',
	'beforeRetry',
	'afterResponse'
];

const {URL: URL$2} = url;



const merge = (target, ...sources) => {
	for (const source of sources) {
		for (const [key, sourceValue] of Object.entries(source)) {
			if (dist.undefined(sourceValue)) {
				continue;
			}

			const targetValue = target[key];
			if (dist.urlInstance(targetValue) && (dist.urlInstance(sourceValue) || dist.string(sourceValue))) {
				target[key] = new URL$2(sourceValue, targetValue);
			} else if (dist.plainObject(sourceValue)) {
				if (dist.plainObject(targetValue)) {
					target[key] = merge({}, targetValue, sourceValue);
				} else {
					target[key] = merge({}, sourceValue);
				}
			} else if (dist.array(sourceValue)) {
				target[key] = merge([], sourceValue);
			} else {
				target[key] = sourceValue;
			}
		}
	}

	return target;
};

const mergeOptions = (...sources) => {
	sources = sources.map(source => source || {});
	const merged = merge({}, ...sources);

	const hooks = {};
	for (const hook of knownHookEvents) {
		hooks[hook] = [];
	}

	for (const source of sources) {
		if (source.hooks) {
			for (const hook of knownHookEvents) {
				hooks[hook] = hooks[hook].concat(source.hooks[hook]);
			}
		}
	}

	merged.hooks = hooks;

	return merged;
};

const mergeInstances = (instances, methods) => {
	const handlers = instances.map(instance => instance.defaults.handler);
	const size = instances.length - 1;

	return {
		methods,
		options: mergeOptions(...instances.map(instance => instance.defaults.options)),
		handler: (options, next) => {
			let iteration = -1;
			const iterate = options => handlers[++iteration](options, iteration === size ? next : iterate);

			return iterate(options);
		}
	};
};

var merge_1 = merge;
var options = mergeOptions;
var instances = mergeInstances;
merge_1.options = options;
merge_1.instances = instances;

var prependHttp = (url$$1, opts) => {
	if (typeof url$$1 !== 'string') {
		throw new TypeError(`Expected \`url\` to be of type \`string\`, got \`${typeof url$$1}\``);
	}

	url$$1 = url$$1.trim();
	opts = Object.assign({https: false}, opts);

	if (/^\.*\/|^(?!localhost)\w+:/.test(url$$1)) {
		return url$$1;
	}

	return url$$1.replace(/^(?!(?:\w+:)?\/\/)/, opts.https ? 'https://' : 'http://');
};

var urlParseLax = (input, options) => {
	if (typeof input !== 'string') {
		throw new TypeError(`Expected \`url\` to be of type \`string\`, got \`${typeof input}\` instead.`);
	}

	const finalUrl = prependHttp(input, Object.assign({https: true}, options));
	return url.parse(finalUrl);
};

const {URL: URL$3, URLSearchParams} = url; // TODO: Use the `URL` global when targeting Node.js 10
const urlLib$1 = url;








const retryAfterStatusCodes = new Set([413, 429, 503]);

// `preNormalize` handles static things (lowercasing headers; normalizing baseUrl, timeout, retry)
// While `normalize` does `preNormalize` + handles things which need to be reworked when user changes them
const preNormalize = (options, defaults) => {
	if (dist.nullOrUndefined(options.headers)) {
		options.headers = {};
	} else {
		options.headers = lowercaseKeys(options.headers);
	}

	if (options.baseUrl && !options.baseUrl.toString().endsWith('/')) {
		options.baseUrl += '/';
	}

	if (options.stream) {
		options.json = false;
	}

	if (dist.nullOrUndefined(options.hooks)) {
		options.hooks = {};
	} else if (!dist.object(options.hooks)) {
		throw new TypeError(`Parameter \`hooks\` must be an object, not ${dist(options.hooks)}`);
	}

	for (const event of knownHookEvents) {
		if (dist.nullOrUndefined(options.hooks[event])) {
			if (defaults) {
				options.hooks[event] = [...defaults.hooks[event]];
			} else {
				options.hooks[event] = [];
			}
		}
	}

	if (dist.number(options.timeout)) {
		options.gotTimeout = {request: options.timeout};
	} else if (dist.object(options.timeout)) {
		options.gotTimeout = options.timeout;
	}
	delete options.timeout;

	const {retry} = options;
	options.retry = {
		retries: 0,
		methods: [],
		statusCodes: [],
		errorCodes: []
	};

	if (dist.nonEmptyObject(defaults) && retry !== false) {
		options.retry = {...defaults.retry};
	}

	if (retry !== false) {
		if (dist.number(retry)) {
			options.retry.retries = retry;
		} else {
			options.retry = {...options.retry, ...retry};
		}
	}

	if (options.gotTimeout) {
		options.retry.maxRetryAfter = Math.min(...[options.gotTimeout.request, options.gotTimeout.connection].filter(n => !dist.nullOrUndefined(n)));
	}

	if (dist.array(options.retry.methods)) {
		options.retry.methods = new Set(options.retry.methods.map(method => method.toUpperCase()));
	}

	if (dist.array(options.retry.statusCodes)) {
		options.retry.statusCodes = new Set(options.retry.statusCodes);
	}

	if (dist.array(options.retry.errorCodes)) {
		options.retry.errorCodes = new Set(options.retry.errorCodes);
	}

	return options;
};

const normalize = (url$$1, options, defaults) => {
	if (dist.plainObject(url$$1)) {
		options = {...url$$1, ...options};
		url$$1 = options.url || {};
		delete options.url;
	}

	if (defaults) {
		options = merge_1({}, defaults.options, options ? preNormalize(options, defaults.options) : {});
	} else {
		options = merge_1({}, preNormalize(options));
	}

	if (!dist.string(url$$1) && !dist.object(url$$1)) {
		throw new TypeError(`Parameter \`url\` must be a string or object, not ${dist(url$$1)}`);
	}

	if (dist.string(url$$1)) {
		if (options.baseUrl) {
			if (url$$1.toString().startsWith('/')) {
				url$$1 = url$$1.toString().slice(1);
			}

			url$$1 = urlToOptions(new URL$3(url$$1, options.baseUrl));
		} else {
			url$$1 = url$$1.replace(/^unix:/, 'http://$&');
			url$$1 = urlParseLax(url$$1);
		}
	} else if (dist(url$$1) === 'URL') {
		url$$1 = urlToOptions(url$$1);
	}

	// Override both null/undefined with default protocol
	options = merge_1({path: ''}, url$$1, {protocol: url$$1.protocol || 'https:'}, options);

	const {baseUrl} = options;
	Object.defineProperty(options, 'baseUrl', {
		set: () => {
			throw new Error('Failed to set baseUrl. Options are normalized already.');
		},
		get: () => baseUrl
	});

	const {query} = options;
	if (dist.nonEmptyString(query) || dist.nonEmptyObject(query) || query instanceof URLSearchParams) {
		if (!dist.string(query)) {
			options.query = (new URLSearchParams(query)).toString();
		}
		options.path = `${options.path.split('?')[0]}?${options.query}`;
		delete options.query;
	}

	if (options.hostname === 'unix') {
		const matches = /(.+?):(.+)/.exec(options.path);

		if (matches) {
			const [, socketPath, path$$1] = matches;
			options = {
				...options,
				socketPath,
				path: path$$1,
				host: null
			};
		}
	}

	const {headers} = options;
	for (const [key, value] of Object.entries(headers)) {
		if (dist.nullOrUndefined(value)) {
			delete headers[key];
		}
	}

	if (options.json && dist.undefined(headers.accept)) {
		headers.accept = 'application/json';
	}

	if (options.decompress && dist.undefined(headers['accept-encoding'])) {
		headers['accept-encoding'] = 'gzip, deflate';
	}

	const {body} = options;
	if (dist.nullOrUndefined(body)) {
		options.method = options.method ? options.method.toUpperCase() : 'GET';
	} else {
		const isObject = dist.object(body) && !dist.buffer(body) && !dist.nodeStream(body);
		if (!dist.nodeStream(body) && !dist.string(body) && !dist.buffer(body) && !(options.form || options.json)) {
			throw new TypeError('The `body` option must be a stream.Readable, string or Buffer');
		}

		if (options.json && !(isObject || dist.array(body))) {
			throw new TypeError('The `body` option must be an Object or Array when the `json` option is used');
		}

		if (options.form && !isObject) {
			throw new TypeError('The `body` option must be an Object when the `form` option is used');
		}

		if (isFormData(body)) {
			// Special case for https://github.com/form-data/form-data
			headers['content-type'] = headers['content-type'] || `multipart/form-data; boundary=${body.getBoundary()}`;
		} else if (options.form) {
			headers['content-type'] = headers['content-type'] || 'application/x-www-form-urlencoded';
			options.body = (new URLSearchParams(body)).toString();
		} else if (options.json) {
			headers['content-type'] = headers['content-type'] || 'application/json';
			options.body = JSON.stringify(body);
		}

		options.method = options.method ? options.method.toUpperCase() : 'POST';
	}

	if (!dist.function(options.retry.retries)) {
		const {retries} = options.retry;

		options.retry.retries = (iteration, error) => {
			if (iteration > retries) {
				return 0;
			}

			if ((!error || !options.retry.errorCodes.has(error.code)) && (!options.retry.methods.has(error.method) || !options.retry.statusCodes.has(error.statusCode))) {
				return 0;
			}

			if (Reflect.has(error, 'headers') && Reflect.has(error.headers, 'retry-after') && retryAfterStatusCodes.has(error.statusCode)) {
				let after = Number(error.headers['retry-after']);
				if (dist.nan(after)) {
					after = Date.parse(error.headers['retry-after']) - Date.now();
				} else {
					after *= 1000;
				}

				if (after > options.retry.maxRetryAfter) {
					return 0;
				}

				return after;
			}

			if (error.statusCode === 413) {
				return 0;
			}

			const noise = Math.random() * 100;
			return ((2 ** (iteration - 1)) * 1000) + noise;
		};
	}

	return options;
};

const reNormalize = options => normalize(urlLib$1.format(options), options);

var normalizeArguments = normalize;
var preNormalize_1 = preNormalize;
var reNormalize_1 = reNormalize;
normalizeArguments.preNormalize = preNormalize_1;
normalizeArguments.reNormalize = reNormalize_1;

const {HTTPError: HTTPError$2, ParseError: ParseError$1, ReadError: ReadError$2} = errors;
const {options: mergeOptions$1} = merge_1;
const {reNormalize: reNormalize$1} = normalizeArguments;

const asPromise = options => {
	const proxy = new events();

	const promise = new pCancelable((resolve, reject, onCancel) => {
		const emitter = requestAsEventEmitter(options);

		onCancel(emitter.abort);

		emitter.on('response', async response => {
			proxy.emit('response', response);

			const stream$$1 = dist.null(options.encoding) ? getStream_1.buffer(response) : getStream_1(response, options);

			let data;
			try {
				data = await stream$$1;
			} catch (error) {
				reject(new ReadError$2(error, options));
				return;
			}

			const limitStatusCode = options.followRedirect ? 299 : 399;

			response.body = data;

			try {
				for (const [index, hook] of Object.entries(options.hooks.afterResponse)) {
					// eslint-disable-next-line no-await-in-loop
					response = await hook(response, updatedOptions => {
						updatedOptions = reNormalize$1(mergeOptions$1(options, {
							...updatedOptions,
							retry: 0,
							throwHttpErrors: false
						}));

						// Remove any further hooks for that request, because we we'll call them anyway.
						// The loop continues. We don't want duplicates (asPromise recursion).
						updatedOptions.hooks.afterResponse = options.hooks.afterResponse.slice(0, index);

						return asPromise(updatedOptions);
					});
				}
			} catch (error) {
				reject(error);
				return;
			}

			const {statusCode} = response;

			if (options.json && response.body) {
				try {
					response.body = JSON.parse(response.body);
				} catch (error) {
					if (statusCode >= 200 && statusCode < 300) {
						const parseError = new ParseError$1(error, statusCode, options, data);
						Object.defineProperty(parseError, 'response', {value: response});
						reject(parseError);
						return;
					}
				}
			}

			if (statusCode !== 304 && (statusCode < 200 || statusCode > limitStatusCode)) {
				const error = new HTTPError$2(response, options);
				Object.defineProperty(error, 'response', {value: response});
				if (emitter.retry(error) === false) {
					if (options.throwHttpErrors) {
						reject(error);
						return;
					}

					resolve(response);
				}
				return;
			}

			resolve(response);
		});

		emitter.once('error', reject);
		[
			'request',
			'redirect',
			'uploadProgress',
			'downloadProgress'
		].forEach(event => emitter.on(event, (...args) => proxy.emit(event, ...args)));
	});

	promise.on = (name, fn) => {
		proxy.on(name, fn);
		return promise;
	};

	return promise;
};

var asPromise_1 = asPromise;

var deepFreeze = function deepFreeze(object) {
	for (const [key, value] of Object.entries(object)) {
		if (dist.plainObject(value) || dist.array(value)) {
			deepFreeze(object[key]);
		}
	}

	return Object.freeze(object);
};

const getPromiseOrStream = options => options.stream ? asStream(options) : asPromise_1(options);

const aliases = [
	'get',
	'post',
	'put',
	'patch',
	'head',
	'delete'
];

const create = defaults => {
	defaults = merge_1({}, defaults);
	normalizeArguments.preNormalize(defaults.options);

	if (!defaults.handler) {
		// This can't be getPromiseOrStream, because when merging
		// the chain would stop at this point and no further handlers would be called.
		defaults.handler = (options, next) => next(options);
	}

	function got(url$$1, options) {
		try {
			return defaults.handler(normalizeArguments(url$$1, options, defaults), getPromiseOrStream);
		} catch (error) {
			if (options && options.stream) {
				throw error;
			} else {
				return Promise.reject(error);
			}
		}
	}

	got.create = create;
	got.extend = options => {
		let mutableDefaults;
		if (options && Reflect.has(options, 'mutableDefaults')) {
			mutableDefaults = options.mutableDefaults;
			delete options.mutableDefaults;
		} else {
			mutableDefaults = defaults.mutableDefaults;
		}

		return create({
			options: merge_1.options(defaults.options, options),
			handler: defaults.handler,
			mutableDefaults
		});
	};

	got.mergeInstances = (...args) => create(merge_1.instances(args));

	got.stream = (url$$1, options) => got(url$$1, {...options, stream: true});

	for (const method of aliases) {
		got[method] = (url$$1, options) => got(url$$1, {...options, method});
		got.stream[method] = (url$$1, options) => got.stream(url$$1, {...options, method});
	}

	Object.assign(got, {...errors, mergeOptions: merge_1.options});
	Object.defineProperty(got, 'defaults', {
		value: defaults.mutableDefaults ? defaults : deepFreeze(defaults),
		writable: defaults.mutableDefaults,
		configurable: defaults.mutableDefaults,
		enumerable: true
	});

	return got;
};

var create_1 = create;

var pkg = getCjsExportFromNamespace(_package$3);

const defaults$1 = {
	options: {
		retry: {
			retries: 2,
			methods: [
				'GET',
				'PUT',
				'HEAD',
				'DELETE',
				'OPTIONS',
				'TRACE'
			],
			statusCodes: [
				408,
				413,
				429,
				500,
				502,
				503,
				504
			],
			errorCodes: [
				'ETIMEDOUT',
				'ECONNRESET',
				'EADDRINUSE',
				'ECONNREFUSED',
				'EPIPE',
				'ENOTFOUND',
				'ENETUNREACH',
				'EAI_AGAIN'
			]
		},
		headers: {
			'user-agent': `${pkg.name}/${pkg.version} (https://github.com/sindresorhus/got)`
		},
		hooks: {
			beforeRequest: [],
			beforeRedirect: [],
			beforeRetry: [],
			afterResponse: []
		},
		decompress: true,
		throwHttpErrors: true,
		followRedirect: true,
		stream: false,
		form: false,
		json: false,
		cache: false,
		useElectronNet: false
	},
	mutableDefaults: false
};

const got = create_1(defaults$1);

var source$1 = got;

var ghGot = createCommonjsModule(function (module) {


const getRateLimit = ({headers}) => ({
	limit: parseInt(headers['x-ratelimit-limit'], 10),
	remaining: parseInt(headers['x-ratelimit-remaining'], 10),
	reset: new Date(parseInt(headers['x-ratelimit-reset'], 10) * 1000)
});

const create = () => source$1.create({
	options: source$1.mergeOptions(source$1.defaults.options, {
		json: true,
		token: process.env.GITHUB_TOKEN,
		baseUrl: process.env.GITHUB_ENDPOINT || 'https://api.github.com',
		headers: {
			accept: 'application/vnd.github.v3+json',
			'user-agent': 'https://github.com/sindresorhus/gh-got'
		}
	}),

	methods: source$1.defaults.methods,

	handler: (options, next) => {
		if (options.token) {
			options.headers.authorization = options.headers.authorization || `token ${options.token}`;
		}

		if (options.stream) {
			return next(options);
		}

		// TODO: Use async/await here when Got supports the `handler` being an async function
		return next(options)
			.then(response => { // eslint-disable-line promise/prefer-await-to-then
				response.rateLimit = getRateLimit(response);
				return response;
			})
			.catch(error => {
				const {response} = error;

				if (response && response.body) {
					error.name = 'GitHubError';
					error.message = `${response.body.message} (${error.statusCode})`;
				}

				if (response) {
					error.rateLimit = getRateLimit(response);
				}

				throw error;
			});
	}
});

module.exports = create();

if (process.env.NODE_ENV === 'test') {
	module.exports.recreate = create;
}
});
var ghGot_1 = ghGot.recreate;

var pkg$1 = getCjsExportFromNamespace(_package$1);

const { promisify } = util;
const { extname } = path;
const debug = node('http');




const platform = os.platform();



const ua = `${pkg$1.name}/${pkg$1.version}`;
const client = ghGot.extend({
  headers: { 'user-agent': ua }
});

const castArray = arg => Array.isArray(arg) ? arg : [arg];
const isHttpError = err => err instanceof client.HTTPError;
const loadZip = promisify(yauzl.fromBuffer);

class InstallationError extends Error {}

var getDeno = {
  download,
  fetchRelease,
  listReleases,
  InstallationError
};

async function download(version = 'latest', os$$1 = platform) {
  const release = await fetchRelease(version);
  debug('found release: %j', release);
  debug('available artifacts: %j', Array.from(release.files.keys()));
  const filename = pkg$1.config.artifacts[os$$1];
  if (!filename || !release.files.has(filename)) {
    throw new InstallationError(`Unsupported platform: ${platform}`);
  }
  const type = extname(filename).replace(/^\./, '');
  const { size, downloadUrl: url$$1 } = release.files.get(filename);
  debug('downloading binary from: url=%s [type=%s, size=%i]', url$$1, type, size);
  let unarchiver;
  if (type === 'gz') unarchiver = zlib.createGunzip();
  else if (type === 'zip') unarchiver = createUnzip();
  else throw new InstallationError(`Unsupported file type: ${filename}`);
  let downloadedSize = 0;
  const downloadStream = client.stream(url$$1, { token: null });
  const outputStream = mississippi.pipe(downloadStream, unarchiver);
  downloadStream.on('data', buf => {
    downloadedSize += Buffer.byteLength(buf);
    outputStream.emit('download:progress', downloadedSize / size, downloadedSize, size);
  });
  const metadata = { filename, size, url: url$$1, version: release.tag };
  return Object.assign(outputStream, { metadata });
}

async function fetchRelease(version = 'latest') {
  debug('fetch single release: %s', version);
  try {
    const [release] = await listReleases(version);
    return release;
  } catch (reason) {
    if (!isHttpError(reason) || reason.statusCode !== 404) throw reason;
    const err = new InstallationError(`Release not found: ${version}`);
    err.reason = reason;
    throw err;
  }
}

async function listReleases(version) {
  const releases = [];
  let url$$1 = `/repos/${pkg$1.config.repo}/releases`;
  if (version === 'latest') url$$1 += '/latest';
  else if (version) url$$1 += `/tags/${version}`;
  let finished = false;
  await pDoWhilst(async () => {
    debug('fetch releases: url=%s', url$$1);
    const resp = await client.get(url$$1);
    const link = githubParseLink(resp.headers.link);
    debug('`Link` header: %j', link);
    if (link.next) url$$1 = link.next;
    else finished = true;
    releases.push(...castArray(resp.body).map(it => processRelease(it)));
  }, () => !finished);
  return releases;
}

function processRelease(release) {
  const files = new Map(release.assets.map(it => [
    it.name, {
      filename: it.name,
      size: it.size,
      downloadUrl: it.browser_download_url,
      ...getTimestamps(it)
    }
  ]));
  return {
    tag: release.tag_name,
    url: release.html_url,
    prerelase: release.prerelase,
    ...getTimestamps(release),
    files
  };
}

function getTimestamps({ created_at: createdAt, published_at: publishedAt }) {
  return { createdAt, publishedAt };
}

function createUnzip() {
  const debug = node('unzip');
  const writer = mississippi.through();
  const reader = mississippi.concat(async buf => {
    try {
      const zipfile = await loadZip(buf, { lazyEntries: true });
      const openReadStream = promisify(zipfile.openReadStream.bind(zipfile));
      zipfile.on('error', err => writer.emit('error', err));
      zipfile.on('entry', async entry => {
        debug('entry found: %s', entry.fileName);
        try {
          const stream$$1 = await openReadStream(entry);
          mississippi.pipe(stream$$1, writer);
        } catch (err) {
          writer.emit('error', err);
        }
      });
      zipfile.readEntry();
    } catch (err) {
      writer.emit('error', err);
    }
  });
  return mississippi.duplex(reader, writer);
}

const callbacks = new Set();
let called = false;

function exit(exit, signal) {
	if (called) {
		return;
	}

	called = true;

	for (const callback of callbacks) {
		callback();
	}

	if (exit === true) {
		process.exit(128 + signal); // eslint-disable-line unicorn/no-process-exit
	}
}

var exitHook = callback => {
	callbacks.add(callback);

	if (callbacks.size === 1) {
		process.once('exit', exit);
		process.once('SIGINT', exit.bind(null, true, 2));
		process.once('SIGTERM', exit.bind(null, true, 15));

		// PM2 Cluster shutdown message. Caught to support async handlers with pm2, needed because
		// explicitly calling process.exit() doesn't trigger the beforeExit event, and the exit
		// event cannot support async handlers, since the event loop is never called after it.
		process.on('message', message => {
			if (message === 'shutdown') {
				exit(true, -128);
			}
		});
	}
};

// These tables borrowed from `ansi`

var prefix = '\x1b[';

var up = function up (num) {
  return prefix + (num || '') + 'A'
};

var down = function down (num) {
  return prefix + (num || '') + 'B'
};

var forward = function forward (num) {
  return prefix + (num || '') + 'C'
};

var back = function back (num) {
  return prefix + (num || '') + 'D'
};

var nextLine = function nextLine (num) {
  return prefix + (num || '') + 'E'
};

var previousLine = function previousLine (num) {
  return prefix + (num || '') + 'F'
};

var horizontalAbsolute = function horizontalAbsolute (num) {
  if (num == null) throw new Error('horizontalAboslute requires a column to position to')
  return prefix + num + 'G'
};

var eraseData = function eraseData () {
  return prefix + 'J'
};

var eraseLine = function eraseLine () {
  return prefix + 'K'
};

var goto_1 = function (x, y) {
  return prefix + y + ';' + x + 'H'
};

var gotoSOL = function () {
  return '\r'
};

var beep = function () {
  return '\x07'
};

var hideCursor = function hideCursor () {
  return prefix + '?25l'
};

var showCursor = function showCursor () {
  return prefix + '?25h'
};

var colors = {
  reset: 0,
// styles
  bold: 1,
  italic: 3,
  underline: 4,
  inverse: 7,
// resets
  stopBold: 22,
  stopItalic: 23,
  stopUnderline: 24,
  stopInverse: 27,
// colors
  white: 37,
  black: 30,
  blue: 34,
  cyan: 36,
  green: 32,
  magenta: 35,
  red: 31,
  yellow: 33,
  bgWhite: 47,
  bgBlack: 40,
  bgBlue: 44,
  bgCyan: 46,
  bgGreen: 42,
  bgMagenta: 45,
  bgRed: 41,
  bgYellow: 43,

  grey: 90,
  brightBlack: 90,
  brightRed: 91,
  brightGreen: 92,
  brightYellow: 93,
  brightBlue: 94,
  brightMagenta: 95,
  brightCyan: 96,
  brightWhite: 97,

  bgGrey: 100,
  bgBrightBlack: 100,
  bgBrightRed: 101,
  bgBrightGreen: 102,
  bgBrightYellow: 103,
  bgBrightBlue: 104,
  bgBrightMagenta: 105,
  bgBrightCyan: 106,
  bgBrightWhite: 107
};

var color = function color (colorWith) {
  if (arguments.length !== 1 || !Array.isArray(colorWith)) {
    colorWith = Array.prototype.slice.call(arguments);
  }
  return prefix + colorWith.map(colorNameToCode).join(';') + 'm'
};

function colorNameToCode (color) {
  if (colors[color] != null) return colors[color]
  throw new Error('Unknown color or style name: ' + color)
}

var consoleControlStrings = {
	up: up,
	down: down,
	forward: forward,
	back: back,
	nextLine: nextLine,
	previousLine: previousLine,
	horizontalAbsolute: horizontalAbsolute,
	eraseData: eraseData,
	eraseLine: eraseLine,
	goto: goto_1,
	gotoSOL: gotoSOL,
	beep: beep,
	hideCursor: hideCursor,
	showCursor: showCursor,
	color: color
};

var ansiRegex = () => {
	const pattern = [
		'[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[a-zA-Z\\d]*)*)?\\u0007)',
		'(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PRZcf-ntqry=><~]))'
	].join('|');

	return new RegExp(pattern, 'g');
};

var stripAnsi = input => typeof input === 'string' ? input.replace(ansiRegex(), '') : input;

/* eslint-disable yoda */
var isFullwidthCodePoint = x => {
	if (Number.isNaN(x)) {
		return false;
	}

	// code points are derived from:
	// http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt
	if (
		x >= 0x1100 && (
			x <= 0x115f ||  // Hangul Jamo
			x === 0x2329 || // LEFT-POINTING ANGLE BRACKET
			x === 0x232a || // RIGHT-POINTING ANGLE BRACKET
			// CJK Radicals Supplement .. Enclosed CJK Letters and Months
			(0x2e80 <= x && x <= 0x3247 && x !== 0x303f) ||
			// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
			(0x3250 <= x && x <= 0x4dbf) ||
			// CJK Unified Ideographs .. Yi Radicals
			(0x4e00 <= x && x <= 0xa4c6) ||
			// Hangul Jamo Extended-A
			(0xa960 <= x && x <= 0xa97c) ||
			// Hangul Syllables
			(0xac00 <= x && x <= 0xd7a3) ||
			// CJK Compatibility Ideographs
			(0xf900 <= x && x <= 0xfaff) ||
			// Vertical Forms
			(0xfe10 <= x && x <= 0xfe19) ||
			// CJK Compatibility Forms .. Small Form Variants
			(0xfe30 <= x && x <= 0xfe6b) ||
			// Halfwidth and Fullwidth Forms
			(0xff01 <= x && x <= 0xff60) ||
			(0xffe0 <= x && x <= 0xffe6) ||
			// Kana Supplement
			(0x1b000 <= x && x <= 0x1b001) ||
			// Enclosed Ideographic Supplement
			(0x1f200 <= x && x <= 0x1f251) ||
			// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
			(0x20000 <= x && x <= 0x3fffd)
		)
	) {
		return true;
	}

	return false;
};

var stringWidth = str => {
	if (typeof str !== 'string' || str.length === 0) {
		return 0;
	}

	str = stripAnsi(str);

	let width = 0;

	for (let i = 0; i < str.length; i++) {
		const code = str.codePointAt(i);

		// Ignore control characters
		if (code <= 0x1F || (code >= 0x7F && code <= 0x9F)) {
			continue;
		}

		// Ignore combining characters
		if (code >= 0x300 && code <= 0x36F) {
			continue;
		}

		// Surrogates
		if (code > 0xFFFF) {
			i++;
		}

		width += isFullwidthCodePoint(code) ? 2 : 1;
	}

	return width;
};

var center = alignCenter;
var left = alignLeft;
var right = alignRight;

// lodash's way of generating pad characters.

function createPadding (width) {
  var result = '';
  var string = ' ';
  var n = width;
  do {
    if (n % 2) {
      result += string;
    }
    n = Math.floor(n / 2);
    string += string;
  } while (n);

  return result;
}

function alignLeft (str, width) {
  var trimmed = str.trimRight();
  if (trimmed.length === 0 && str.length >= width) return str
  var padding = '';
  var strWidth = stringWidth(trimmed);

  if (strWidth < width) {
    padding = createPadding(width - strWidth);
  }

  return trimmed + padding
}

function alignRight (str, width) {
  var trimmed = str.trimLeft();
  if (trimmed.length === 0 && str.length >= width) return str
  var padding = '';
  var strWidth = stringWidth(trimmed);

  if (strWidth < width) {
    padding = createPadding(width - strWidth);
  }

  return padding + trimmed
}

function alignCenter (str, width) {
  var trimmed = str.trim();
  if (trimmed.length === 0 && str.length >= width) return str
  var padLeft = '';
  var padRight = '';
  var strWidth = stringWidth(trimmed);

  if (strWidth < width) {
    var padLeftBy = parseInt((width - strWidth) / 2, 10); 
    padLeft = createPadding(padLeftBy);
    padRight = createPadding(width - (strWidth + padLeftBy));
  }

  return padLeft + trimmed + padRight
}

var align = {
	center: center,
	left: left,
	right: right
};

var aproba = createCommonjsModule(function (module) {

function isArguments (thingy) {
  return thingy != null && typeof thingy === 'object' && thingy.hasOwnProperty('callee')
}

var types = {
  '*': {label: 'any', check: function () { return true }},
  A: {label: 'array', check: function (thingy) { return Array.isArray(thingy) || isArguments(thingy) }},
  S: {label: 'string', check: function (thingy) { return typeof thingy === 'string' }},
  N: {label: 'number', check: function (thingy) { return typeof thingy === 'number' }},
  F: {label: 'function', check: function (thingy) { return typeof thingy === 'function' }},
  O: {label: 'object', check: function (thingy) { return typeof thingy === 'object' && thingy != null && !types.A.check(thingy) && !types.E.check(thingy) }},
  B: {label: 'boolean', check: function (thingy) { return typeof thingy === 'boolean' }},
  E: {label: 'error', check: function (thingy) { return thingy instanceof Error }},
  Z: {label: 'null', check: function (thingy) { return thingy == null }}
};

function addSchema (schema, arity) {
  var group = arity[schema.length] = arity[schema.length] || [];
  if (group.indexOf(schema) === -1) group.push(schema);
}

var validate = module.exports = function (rawSchemas, args) {
  if (arguments.length !== 2) throw wrongNumberOfArgs(['SA'], arguments.length)
  if (!rawSchemas) throw missingRequiredArg(0, 'rawSchemas')
  if (!args) throw missingRequiredArg(1, 'args')
  if (!types.S.check(rawSchemas)) throw invalidType(0, ['string'], rawSchemas)
  if (!types.A.check(args)) throw invalidType(1, ['array'], args)
  var schemas = rawSchemas.split('|');
  var arity = {};

  schemas.forEach(function (schema) {
    for (var ii = 0; ii < schema.length; ++ii) {
      var type = schema[ii];
      if (!types[type]) throw unknownType(ii, type)
    }
    if (/E.*E/.test(schema)) throw moreThanOneError(schema)
    addSchema(schema, arity);
    if (/E/.test(schema)) {
      addSchema(schema.replace(/E.*$/, 'E'), arity);
      addSchema(schema.replace(/E/, 'Z'), arity);
      if (schema.length === 1) addSchema('', arity);
    }
  });
  var matching = arity[args.length];
  if (!matching) {
    throw wrongNumberOfArgs(Object.keys(arity), args.length)
  }
  for (var ii = 0; ii < args.length; ++ii) {
    var newMatching = matching.filter(function (schema) {
      var type = schema[ii];
      var typeCheck = types[type].check;
      return typeCheck(args[ii])
    });
    if (!newMatching.length) {
      var labels = matching.map(function (schema) {
        return types[schema[ii]].label
      }).filter(function (schema) { return schema != null });
      throw invalidType(ii, labels, args[ii])
    }
    matching = newMatching;
  }
};

function missingRequiredArg (num) {
  return newException('EMISSINGARG', 'Missing required argument #' + (num + 1))
}

function unknownType (num, type) {
  return newException('EUNKNOWNTYPE', 'Unknown type ' + type + ' in argument #' + (num + 1))
}

function invalidType (num, expectedTypes, value) {
  var valueType;
  Object.keys(types).forEach(function (typeCode) {
    if (types[typeCode].check(value)) valueType = types[typeCode].label;
  });
  return newException('EINVALIDTYPE', 'Argument #' + (num + 1) + ': Expected ' +
    englishList(expectedTypes) + ' but got ' + valueType)
}

function englishList (list) {
  return list.join(', ').replace(/, ([^,]+)$/, ' or $1')
}

function wrongNumberOfArgs (expected, got) {
  var english = englishList(expected);
  var args = expected.every(function (ex) { return ex.length === 1 })
    ? 'argument'
    : 'arguments';
  return newException('EWRONGARGCOUNT', 'Expected ' + english + ' ' + args + ' but got ' + got)
}

function moreThanOneError (schema) {
  return newException('ETOOMANYERRORTYPES',
    'Only one error type per argument signature is allowed, more than one found in "' + schema + '"')
}

function newException (code, msg) {
  var e = new Error(msg);
  e.code = code;
  if (Error.captureStackTrace) Error.captureStackTrace(e, validate);
  return e
}
});

/*
object-assign
(c) Sindre Sorhus
@license MIT
*/
/* eslint-disable no-unused-vars */
var getOwnPropertySymbols = Object.getOwnPropertySymbols;
var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
var propIsEnumerable = Object.prototype.propertyIsEnumerable;

function toObject(val) {
	if (val === null || val === undefined) {
		throw new TypeError('Object.assign cannot be called with null or undefined');
	}

	return Object(val);
}

function shouldUseNative() {
	try {
		if (!Object.assign) {
			return false;
		}

		// Detect buggy property enumeration order in older V8 versions.

		// https://bugs.chromium.org/p/v8/issues/detail?id=4118
		var test1 = new String('abc');  // eslint-disable-line no-new-wrappers
		test1[5] = 'de';
		if (Object.getOwnPropertyNames(test1)[0] === '5') {
			return false;
		}

		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
		var test2 = {};
		for (var i = 0; i < 10; i++) {
			test2['_' + String.fromCharCode(i)] = i;
		}
		var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
			return test2[n];
		});
		if (order2.join('') !== '0123456789') {
			return false;
		}

		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
		var test3 = {};
		'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
			test3[letter] = letter;
		});
		if (Object.keys(Object.assign({}, test3)).join('') !==
				'abcdefghijklmnopqrst') {
			return false;
		}

		return true;
	} catch (err) {
		// We don't expect any of the above to throw, but better to be safe.
		return false;
	}
}

var objectAssign = shouldUseNative() ? Object.assign : function (target, source) {
	var from;
	var to = toObject(target);
	var symbols;

	for (var s = 1; s < arguments.length; s++) {
		from = Object(arguments[s]);

		for (var key in from) {
			if (hasOwnProperty$1.call(from, key)) {
				to[key] = from[key];
			}
		}

		if (getOwnPropertySymbols) {
			symbols = getOwnPropertySymbols(from);
			for (var i = 0; i < symbols.length; i++) {
				if (propIsEnumerable.call(from, symbols[i])) {
					to[symbols[i]] = from[symbols[i]];
				}
			}
		}
	}

	return to;
};

var ansiRegex$1 = function () {
	return /[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-PRZcf-nqry=><]/g;
};

var ansiRegex$2 = ansiRegex$1();

var stripAnsi$1 = function (str) {
	return typeof str === 'string' ? str.replace(ansiRegex$2, '') : str;
};

/* eslint-disable babel/new-cap, xo/throw-new-error */
var codePointAt = function (str, pos) {
	if (str === null || str === undefined) {
		throw TypeError();
	}

	str = String(str);

	var size = str.length;
	var i = pos ? Number(pos) : 0;

	if (Number.isNaN(i)) {
		i = 0;
	}

	if (i < 0 || i >= size) {
		return undefined;
	}

	var first = str.charCodeAt(i);

	if (first >= 0xD800 && first <= 0xDBFF && size > i + 1) {
		var second = str.charCodeAt(i + 1);

		if (second >= 0xDC00 && second <= 0xDFFF) {
			return ((first - 0xD800) * 0x400) + second - 0xDC00 + 0x10000;
		}
	}

	return first;
};

var numberIsNan = Number.isNaN || function (x) {
	return x !== x;
};

var isFullwidthCodePoint$1 = function (x) {
	if (numberIsNan(x)) {
		return false;
	}

	// https://github.com/nodejs/io.js/blob/cff7300a578be1b10001f2d967aaedc88aee6402/lib/readline.js#L1369

	// code points are derived from:
	// http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt
	if (x >= 0x1100 && (
		x <= 0x115f ||  // Hangul Jamo
		0x2329 === x || // LEFT-POINTING ANGLE BRACKET
		0x232a === x || // RIGHT-POINTING ANGLE BRACKET
		// CJK Radicals Supplement .. Enclosed CJK Letters and Months
		(0x2e80 <= x && x <= 0x3247 && x !== 0x303f) ||
		// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
		0x3250 <= x && x <= 0x4dbf ||
		// CJK Unified Ideographs .. Yi Radicals
		0x4e00 <= x && x <= 0xa4c6 ||
		// Hangul Jamo Extended-A
		0xa960 <= x && x <= 0xa97c ||
		// Hangul Syllables
		0xac00 <= x && x <= 0xd7a3 ||
		// CJK Compatibility Ideographs
		0xf900 <= x && x <= 0xfaff ||
		// Vertical Forms
		0xfe10 <= x && x <= 0xfe19 ||
		// CJK Compatibility Forms .. Small Form Variants
		0xfe30 <= x && x <= 0xfe6b ||
		// Halfwidth and Fullwidth Forms
		0xff01 <= x && x <= 0xff60 ||
		0xffe0 <= x && x <= 0xffe6 ||
		// Kana Supplement
		0x1b000 <= x && x <= 0x1b001 ||
		// Enclosed Ideographic Supplement
		0x1f200 <= x && x <= 0x1f251 ||
		// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
		0x20000 <= x && x <= 0x3fffd)) {
		return true;
	}

	return false;
};

// https://github.com/nodejs/io.js/blob/cff7300a578be1b10001f2d967aaedc88aee6402/lib/readline.js#L1345
var stringWidth$1 = function (str) {
	if (typeof str !== 'string' || str.length === 0) {
		return 0;
	}

	var width = 0;

	str = stripAnsi$1(str);

	for (var i = 0; i < str.length; i++) {
		var code = codePointAt(str, i);

		// ignore control characters
		if (code <= 0x1f || (code >= 0x7f && code <= 0x9f)) {
			continue;
		}

		// surrogates
		if (code >= 0x10000) {
			i++;
		}

		if (isFullwidthCodePoint$1(code)) {
			width += 2;
		} else {
			width++;
		}
	}

	return width;
};

var wideTruncate_1 = wideTruncate;

function wideTruncate (str, target) {
  if (stringWidth$1(str) === 0) return str
  if (target <= 0) return ''
  if (stringWidth$1(str) <= target) return str

  // We compute the number of bytes of ansi sequences here and add
  // that to our initial truncation to ensure that we don't slice one
  // that we want to keep in half.
  var noAnsi = stripAnsi$1(str);
  var ansiSize = str.length + noAnsi.length;
  var truncated = str.slice(0, target + ansiSize);

  // we have to shrink the result to account for our ansi sequence buffer
  // (if an ansi sequence was truncated) and double width characters.
  while (stringWidth$1(truncated) > target) {
    truncated = truncated.slice(0, -1);
  }
  return truncated
}

var error = createCommonjsModule(function (module, exports) {


var User = exports.User = function User (msg) {
  var err = new Error(msg);
  Error.captureStackTrace(err, User);
  err.code = 'EGAUGE';
  return err
};

exports.MissingTemplateValue = function MissingTemplateValue (item, values) {
  var err = new User(util.format('Missing template value "%s"', item.type));
  Error.captureStackTrace(err, MissingTemplateValue);
  err.template = item;
  err.values = values;
  return err
};

exports.Internal = function Internal (msg) {
  var err = new Error(msg);
  Error.captureStackTrace(err, Internal);
  err.code = 'EGAUGEINTERNAL';
  return err
};
});
var error_1 = error.User;
var error_2 = error.MissingTemplateValue;
var error_3 = error.Internal;

var templateItem = TemplateItem;

function isPercent (num) {
  if (typeof num !== 'string') return false
  return num.slice(-1) === '%'
}

function percent (num) {
  return Number(num.slice(0, -1)) / 100
}

function TemplateItem (values, outputLength) {
  this.overallOutputLength = outputLength;
  this.finished = false;
  this.type = null;
  this.value = null;
  this.length = null;
  this.maxLength = null;
  this.minLength = null;
  this.kerning = null;
  this.align = 'left';
  this.padLeft = 0;
  this.padRight = 0;
  this.index = null;
  this.first = null;
  this.last = null;
  if (typeof values === 'string') {
    this.value = values;
  } else {
    for (var prop in values) this[prop] = values[prop];
  }
  // Realize percents
  if (isPercent(this.length)) {
    this.length = Math.round(this.overallOutputLength * percent(this.length));
  }
  if (isPercent(this.minLength)) {
    this.minLength = Math.round(this.overallOutputLength * percent(this.minLength));
  }
  if (isPercent(this.maxLength)) {
    this.maxLength = Math.round(this.overallOutputLength * percent(this.maxLength));
  }
  return this
}

TemplateItem.prototype = {};

TemplateItem.prototype.getBaseLength = function () {
  var length = this.length;
  if (length == null && typeof this.value === 'string' && this.maxLength == null && this.minLength == null) {
    length = stringWidth$1(this.value);
  }
  return length
};

TemplateItem.prototype.getLength = function () {
  var length = this.getBaseLength();
  if (length == null) return null
  return length + this.padLeft + this.padRight
};

TemplateItem.prototype.getMaxLength = function () {
  if (this.maxLength == null) return null
  return this.maxLength + this.padLeft + this.padRight
};

TemplateItem.prototype.getMinLength = function () {
  if (this.minLength == null) return null
  return this.minLength + this.padLeft + this.padRight
};

var renderTemplate_1 = createCommonjsModule(function (module) {







function renderValueWithValues (values) {
  return function (item) {
    return renderValue(item, values)
  }
}

var renderTemplate = module.exports = function (width, template, values) {
  var items = prepareItems(width, template, values);
  var rendered = items.map(renderValueWithValues(values)).join('');
  return align.left(wideTruncate_1(rendered, width), width)
};

function preType (item) {
  var cappedTypeName = item.type[0].toUpperCase() + item.type.slice(1);
  return 'pre' + cappedTypeName
}

function postType (item) {
  var cappedTypeName = item.type[0].toUpperCase() + item.type.slice(1);
  return 'post' + cappedTypeName
}

function hasPreOrPost (item, values) {
  if (!item.type) return
  return values[preType(item)] || values[postType(item)]
}

function generatePreAndPost (baseItem, parentValues) {
  var item = objectAssign({}, baseItem);
  var values = Object.create(parentValues);
  var template = [];
  var pre = preType(item);
  var post = postType(item);
  if (values[pre]) {
    template.push({value: values[pre]});
    values[pre] = null;
  }
  item.minLength = null;
  item.length = null;
  item.maxLength = null;
  template.push(item);
  values[item.type] = values[item.type];
  if (values[post]) {
    template.push({value: values[post]});
    values[post] = null;
  }
  return function ($1, $2, length) {
    return renderTemplate(length, template, values)
  }
}

function prepareItems (width, template, values) {
  function cloneAndObjectify (item, index, arr) {
    var cloned = new templateItem(item, width);
    var type = cloned.type;
    if (cloned.value == null) {
      if (!(type in values)) {
        if (cloned.default == null) {
          throw new error.MissingTemplateValue(cloned, values)
        } else {
          cloned.value = cloned.default;
        }
      } else {
        cloned.value = values[type];
      }
    }
    if (cloned.value == null || cloned.value === '') return null
    cloned.index = index;
    cloned.first = index === 0;
    cloned.last = index === arr.length - 1;
    if (hasPreOrPost(cloned, values)) cloned.value = generatePreAndPost(cloned, values);
    return cloned
  }

  var output = template.map(cloneAndObjectify).filter(function (item) { return item != null });
  var remainingSpace = width;
  var variableCount = output.length;

  function consumeSpace (length) {
    if (length > remainingSpace) length = remainingSpace;
    remainingSpace -= length;
  }

  function finishSizing (item, length) {
    if (item.finished) throw new error.Internal('Tried to finish template item that was already finished')
    if (length === Infinity) throw new error.Internal('Length of template item cannot be infinity')
    if (length != null) item.length = length;
    item.minLength = null;
    item.maxLength = null;
    --variableCount;
    item.finished = true;
    if (item.length == null) item.length = item.getBaseLength();
    if (item.length == null) throw new error.Internal('Finished template items must have a length')
    consumeSpace(item.getLength());
  }

  output.forEach(function (item) {
    if (!item.kerning) return
    var prevPadRight = item.first ? 0 : output[item.index - 1].padRight;
    if (!item.first && prevPadRight < item.kerning) item.padLeft = item.kerning - prevPadRight;
    if (!item.last) item.padRight = item.kerning;
  });

  // Finish any that have a fixed (literal or intuited) length
  output.forEach(function (item) {
    if (item.getBaseLength() == null) return
    finishSizing(item);
  });

  var resized = 0;
  var resizing;
  var hunkSize;
  do {
    resizing = false;
    hunkSize = Math.round(remainingSpace / variableCount);
    output.forEach(function (item) {
      if (item.finished) return
      if (!item.maxLength) return
      if (item.getMaxLength() < hunkSize) {
        finishSizing(item, item.maxLength);
        resizing = true;
      }
    });
  } while (resizing && resized++ < output.length)
  if (resizing) throw new error.Internal('Resize loop iterated too many times while determining maxLength')

  resized = 0;
  do {
    resizing = false;
    hunkSize = Math.round(remainingSpace / variableCount);
    output.forEach(function (item) {
      if (item.finished) return
      if (!item.minLength) return
      if (item.getMinLength() >= hunkSize) {
        finishSizing(item, item.minLength);
        resizing = true;
      }
    });
  } while (resizing && resized++ < output.length)
  if (resizing) throw new error.Internal('Resize loop iterated too many times while determining minLength')

  hunkSize = Math.round(remainingSpace / variableCount);
  output.forEach(function (item) {
    if (item.finished) return
    finishSizing(item, hunkSize);
  });

  return output
}

function renderFunction (item, values, length) {
  aproba('OON', arguments);
  if (item.type) {
    return item.value(values, values[item.type + 'Theme'] || {}, length)
  } else {
    return item.value(values, {}, length)
  }
}

function renderValue (item, values) {
  var length = item.getBaseLength();
  var value = typeof item.value === 'function' ? renderFunction(item, values, length) : item.value;
  if (value == null || value === '') return ''
  var alignWith = align[item.align] || align.left;
  var leftPadding = item.padLeft ? align.left('', item.padLeft) : '';
  var rightPadding = item.padRight ? align.right('', item.padRight) : '';
  var truncated = wideTruncate_1(String(value), length);
  var aligned = alignWith(truncated, length);
  return leftPadding + aligned + rightPadding
}
});

var plumbing = createCommonjsModule(function (module) {




var Plumbing = module.exports = function (theme, template, width) {
  if (!width) width = 80;
  aproba('OAN', [theme, template, width]);
  this.showing = false;
  this.theme = theme;
  this.width = width;
  this.template = template;
};
Plumbing.prototype = {};

Plumbing.prototype.setTheme = function (theme) {
  aproba('O', [theme]);
  this.theme = theme;
};

Plumbing.prototype.setTemplate = function (template) {
  aproba('A', [template]);
  this.template = template;
};

Plumbing.prototype.setWidth = function (width) {
  aproba('N', [width]);
  this.width = width;
};

Plumbing.prototype.hide = function () {
  return consoleControlStrings.gotoSOL() + consoleControlStrings.eraseLine()
};

Plumbing.prototype.hideCursor = consoleControlStrings.hideCursor;

Plumbing.prototype.showCursor = consoleControlStrings.showCursor;

Plumbing.prototype.show = function (status) {
  var values = Object.create(this.theme);
  for (var key in status) {
    values[key] = status[key];
  }

  return renderTemplate_1(this.width, this.template, values).trim() +
         consoleControlStrings.color('reset') +
         consoleControlStrings.eraseLine() + consoleControlStrings.gotoSOL()
};
});

var hasUnicode_1 = createCommonjsModule(function (module) {


var hasUnicode = module.exports = function () {
  // Recent Win32 platforms (>XP) CAN support unicode in the console but
  // don't have to, and in non-english locales often use traditional local
  // code pages. There's no way, short of windows system calls or execing
  // the chcp command line program to figure this out. As such, we default
  // this to false and encourage your users to override it via config if
  // appropriate.
  if (os.type() == "Windows_NT") { return false }

  var isUTF8 = /UTF-?8$/i;
  var ctype = process.env.LC_ALL || process.env.LC_CTYPE || process.env.LANG;
  return isUTF8.test(ctype)
};
});

var hasColor = isWin32() || isColorTerm();

function isWin32 () {
  return process.platform === 'win32'
}

function isColorTerm () {
  var termHasColor = /^screen|^xterm|^vt100|color|ansi|cygwin|linux/i;
  return !!process.env.COLORTERM || termHasColor.test(process.env.TERM)
}

var signals = createCommonjsModule(function (module) {
// This is not the set of all possible signals.
//
// It IS, however, the set of all signals that trigger
// an exit on either Linux or BSD systems.  Linux is a
// superset of the signal names supported on BSD, and
// the unknown signals just fail to register, so we can
// catch that easily enough.
//
// Don't bother with SIGKILL.  It's uncatchable, which
// means that we can't fire any callbacks anyway.
//
// If a user does happen to register a handler on a non-
// fatal signal like SIGWINCH or something, and then
// exit, it'll end up firing `process.emit('exit')`, so
// the handler will be fired anyway.
//
// SIGBUS, SIGFPE, SIGSEGV and SIGILL, when not raised
// artificially, inherently leave the process in a
// state from which it is not safe to try and enter JS
// listeners.
module.exports = [
  'SIGABRT',
  'SIGALRM',
  'SIGHUP',
  'SIGINT',
  'SIGTERM'
];

if (process.platform !== 'win32') {
  module.exports.push(
    'SIGVTALRM',
    'SIGXCPU',
    'SIGXFSZ',
    'SIGUSR2',
    'SIGTRAP',
    'SIGSYS',
    'SIGQUIT',
    'SIGIOT'
    // should detect profiler and enable/disable accordingly.
    // see #21
    // 'SIGPROF'
  );
}

if (process.platform === 'linux') {
  module.exports.push(
    'SIGIO',
    'SIGPOLL',
    'SIGPWR',
    'SIGSTKFLT',
    'SIGUNUSED'
  );
}
});

// Note: since nyc uses this module to output coverage, any lines
// that are in the direct sync flow of nyc's outputCoverage are
// ignored, since we can never get coverage for them.

var signals$1 = signals;

var EE = events;
/* istanbul ignore if */
if (typeof EE !== 'function') {
  EE = EE.EventEmitter;
}

var emitter;
if (process.__signal_exit_emitter__) {
  emitter = process.__signal_exit_emitter__;
} else {
  emitter = process.__signal_exit_emitter__ = new EE();
  emitter.count = 0;
  emitter.emitted = {};
}

// Because this emitter is a global, we have to check to see if a
// previous version of this library failed to enable infinite listeners.
// I know what you're about to say.  But literally everything about
// signal-exit is a compromise with evil.  Get used to it.
if (!emitter.infinite) {
  emitter.setMaxListeners(Infinity);
  emitter.infinite = true;
}

var signalExit = function (cb, opts) {
  assert.equal(typeof cb, 'function', 'a callback must be provided for exit handler');

  if (loaded === false) {
    load();
  }

  var ev = 'exit';
  if (opts && opts.alwaysLast) {
    ev = 'afterexit';
  }

  var remove = function () {
    emitter.removeListener(ev, cb);
    if (emitter.listeners('exit').length === 0 &&
        emitter.listeners('afterexit').length === 0) {
      unload();
    }
  };
  emitter.on(ev, cb);

  return remove
};

var unload_1 = unload;
function unload () {
  if (!loaded) {
    return
  }
  loaded = false;

  signals$1.forEach(function (sig) {
    try {
      process.removeListener(sig, sigListeners[sig]);
    } catch (er) {}
  });
  process.emit = originalProcessEmit;
  process.reallyExit = originalProcessReallyExit;
  emitter.count -= 1;
}

function emit (event, code, signal) {
  if (emitter.emitted[event]) {
    return
  }
  emitter.emitted[event] = true;
  emitter.emit(event, code, signal);
}

// { <signal>: <listener fn>, ... }
var sigListeners = {};
signals$1.forEach(function (sig) {
  sigListeners[sig] = function listener () {
    // If there are no other listeners, an exit is coming!
    // Simplest way: remove us and then re-send the signal.
    // We know that this will kill the process, so we can
    // safely emit now.
    var listeners = process.listeners(sig);
    if (listeners.length === emitter.count) {
      unload();
      emit('exit', null, sig);
      /* istanbul ignore next */
      emit('afterexit', null, sig);
      /* istanbul ignore next */
      process.kill(process.pid, sig);
    }
  };
});

var signals_1 = function () {
  return signals$1
};

var load_1 = load;

var loaded = false;

function load () {
  if (loaded) {
    return
  }
  loaded = true;

  // This is the number of onSignalExit's that are in play.
  // It's important so that we can count the correct number of
  // listeners on signals, and don't wait for the other one to
  // handle it instead of us.
  emitter.count += 1;

  signals$1 = signals$1.filter(function (sig) {
    try {
      process.on(sig, sigListeners[sig]);
      return true
    } catch (er) {
      return false
    }
  });

  process.emit = processEmit;
  process.reallyExit = processReallyExit;
}

var originalProcessReallyExit = process.reallyExit;
function processReallyExit (code) {
  process.exitCode = code || 0;
  emit('exit', process.exitCode, null);
  /* istanbul ignore next */
  emit('afterexit', process.exitCode, null);
  /* istanbul ignore next */
  originalProcessReallyExit.call(process, process.exitCode);
}

var originalProcessEmit = process.emit;
function processEmit (ev, arg) {
  if (ev === 'exit') {
    if (arg !== undefined) {
      process.exitCode = arg;
    }
    var ret = originalProcessEmit.apply(this, arguments);
    emit('exit', process.exitCode, null);
    /* istanbul ignore next */
    emit('afterexit', process.exitCode, null);
    return ret
  } else {
    return originalProcessEmit.apply(this, arguments)
  }
}
signalExit.unload = unload_1;
signalExit.signals = signals_1;
signalExit.load = load_1;

var spin = function spin (spinstr, spun) {
  return spinstr[spun % spinstr.length]
};

var progressBar = function (theme, width, completed) {
  aproba('ONN', [theme, width, completed]);
  if (completed < 0) completed = 0;
  if (completed > 1) completed = 1;
  if (width <= 0) return ''
  var sofar = Math.round(width * completed);
  var rest = width - sofar;
  var template = [
    {type: 'complete', value: repeat(theme.complete, sofar), length: sofar},
    {type: 'remaining', value: repeat(theme.remaining, rest), length: rest}
  ];
  return renderTemplate_1(width, template, theme)
};

// lodash's way of repeating
function repeat (string, width) {
  var result = '';
  var n = width;
  do {
    if (n % 2) {
      result += string;
    }
    n = Math.floor(n / 2);
    /*eslint no-self-assign: 0*/
    string += string;
  } while (n && stringWidth$1(result) < width)

  return wideTruncate_1(result, width)
}

var baseTheme = {
  activityIndicator: function (values, theme, width) {
    if (values.spun == null) return
    return spin(theme, values.spun)
  },
  progressbar: function (values, theme, width) {
    if (values.completed == null) return
    return progressBar(theme, width, values.completed)
  }
};

var themeSet = function () {
  return ThemeSetProto.newThemeSet()
};

var ThemeSetProto = {};

ThemeSetProto.baseTheme = baseTheme;

ThemeSetProto.newTheme = function (parent, theme) {
  if (!theme) {
    theme = parent;
    parent = this.baseTheme;
  }
  return objectAssign({}, parent, theme)
};

ThemeSetProto.getThemeNames = function () {
  return Object.keys(this.themes)
};

ThemeSetProto.addTheme = function (name, parent, theme) {
  this.themes[name] = this.newTheme(parent, theme);
};

ThemeSetProto.addToAllThemes = function (theme) {
  var themes = this.themes;
  Object.keys(themes).forEach(function (name) {
    objectAssign(themes[name], theme);
  });
  objectAssign(this.baseTheme, theme);
};

ThemeSetProto.getTheme = function (name) {
  if (!this.themes[name]) throw this.newMissingThemeError(name)
  return this.themes[name]
};

ThemeSetProto.setDefault = function (opts, name) {
  if (name == null) {
    name = opts;
    opts = {};
  }
  var platform = opts.platform == null ? 'fallback' : opts.platform;
  var hasUnicode = !!opts.hasUnicode;
  var hasColor = !!opts.hasColor;
  if (!this.defaults[platform]) this.defaults[platform] = {true: {}, false: {}};
  this.defaults[platform][hasUnicode][hasColor] = name;
};

ThemeSetProto.getDefault = function (opts) {
  if (!opts) opts = {};
  var platformName = opts.platform || process.platform;
  var platform = this.defaults[platformName] || this.defaults.fallback;
  var hasUnicode = !!opts.hasUnicode;
  var hasColor = !!opts.hasColor;
  if (!platform) throw this.newMissingDefaultThemeError(platformName, hasUnicode, hasColor)
  if (!platform[hasUnicode][hasColor]) {
    if (hasUnicode && hasColor && platform[!hasUnicode][hasColor]) {
      hasUnicode = false;
    } else if (hasUnicode && hasColor && platform[hasUnicode][!hasColor]) {
      hasColor = false;
    } else if (hasUnicode && hasColor && platform[!hasUnicode][!hasColor]) {
      hasUnicode = false;
      hasColor = false;
    } else if (hasUnicode && !hasColor && platform[!hasUnicode][hasColor]) {
      hasUnicode = false;
    } else if (!hasUnicode && hasColor && platform[hasUnicode][!hasColor]) {
      hasColor = false;
    } else if (platform === this.defaults.fallback) {
      throw this.newMissingDefaultThemeError(platformName, hasUnicode, hasColor)
    }
  }
  if (platform[hasUnicode][hasColor]) {
    return this.getTheme(platform[hasUnicode][hasColor])
  } else {
    return this.getDefault(objectAssign({}, opts, {platform: 'fallback'}))
  }
};

ThemeSetProto.newMissingThemeError = function newMissingThemeError (name) {
  var err = new Error('Could not find a gauge theme named "' + name + '"');
  Error.captureStackTrace.call(err, newMissingThemeError);
  err.theme = name;
  err.code = 'EMISSINGTHEME';
  return err
};

ThemeSetProto.newMissingDefaultThemeError = function newMissingDefaultThemeError (platformName, hasUnicode, hasColor) {
  var err = new Error(
    'Could not find a gauge theme for your platform/unicode/color use combo:\n' +
    '    platform = ' + platformName + '\n' +
    '    hasUnicode = ' + hasUnicode + '\n' +
    '    hasColor = ' + hasColor);
  Error.captureStackTrace.call(err, newMissingDefaultThemeError);
  err.platform = platformName;
  err.hasUnicode = hasUnicode;
  err.hasColor = hasColor;
  err.code = 'EMISSINGTHEME';
  return err
};

ThemeSetProto.newThemeSet = function () {
  var themeset = function (opts) {
    return themeset.getDefault(opts)
  };
  return objectAssign(themeset, ThemeSetProto, {
    themes: objectAssign({}, this.themes),
    baseTheme: objectAssign({}, this.baseTheme),
    defaults: JSON.parse(JSON.stringify(this.defaults || {}))
  })
};

var themes_1 = createCommonjsModule(function (module) {



var themes = module.exports = new themeSet();

themes.addTheme('ASCII', {
  preProgressbar: '[',
  postProgressbar: ']',
  progressbarTheme: {
    complete: '#',
    remaining: '.'
  },
  activityIndicatorTheme: '-\\|/',
  preSubsection: '>'
});

themes.addTheme('colorASCII', themes.getTheme('ASCII'), {
  progressbarTheme: {
    preComplete: consoleControlStrings.color('inverse'),
    complete: ' ',
    postComplete: consoleControlStrings.color('stopInverse'),
    preRemaining: consoleControlStrings.color('brightBlack'),
    remaining: '.',
    postRemaining: consoleControlStrings.color('reset')
  }
});

themes.addTheme('brailleSpinner', {
  preProgressbar: '⸨',
  postProgressbar: '⸩',
  progressbarTheme: {
    complete: '░',
    remaining: '⠂'
  },
  activityIndicatorTheme: '⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏',
  preSubsection: '>'
});

themes.addTheme('colorBrailleSpinner', themes.getTheme('brailleSpinner'), {
  progressbarTheme: {
    preComplete: consoleControlStrings.color('inverse'),
    complete: ' ',
    postComplete: consoleControlStrings.color('stopInverse'),
    preRemaining: consoleControlStrings.color('brightBlack'),
    remaining: '░',
    postRemaining: consoleControlStrings.color('reset')
  }
});

themes.setDefault({}, 'ASCII');
themes.setDefault({hasColor: true}, 'colorASCII');
themes.setDefault({platform: 'darwin', hasUnicode: true}, 'brailleSpinner');
themes.setDefault({platform: 'darwin', hasUnicode: true, hasColor: true}, 'colorBrailleSpinner');
});

// this exists so we can replace it during testing
var setInterval_1 = setInterval;

// this exists so we can replace it during testing
var process_1 = process;

var setImmediate_1 = createCommonjsModule(function (module) {

try {
  module.exports = setImmediate;
} catch (ex) {
  module.exports = process_1.nextTick;
}
});

var gauge = Gauge;

function callWith (obj, method) {
  return function () {
    return method.call(obj)
  }
}

function Gauge (arg1, arg2) {
  var options, writeTo;
  if (arg1 && arg1.write) {
    writeTo = arg1;
    options = arg2 || {};
  } else if (arg2 && arg2.write) {
    writeTo = arg2;
    options = arg1 || {};
  } else {
    writeTo = process_1.stderr;
    options = arg1 || arg2 || {};
  }

  this._status = {
    spun: 0,
    section: '',
    subsection: ''
  };
  this._paused = false; // are we paused for back pressure?
  this._disabled = true; // are all progress bar updates disabled?
  this._showing = false; // do we WANT the progress bar on screen
  this._onScreen = false; // IS the progress bar on screen
  this._needsRedraw = false; // should we print something at next tick?
  this._hideCursor = options.hideCursor == null ? true : options.hideCursor;
  this._fixedFramerate = options.fixedFramerate == null
    ? !(/^v0\.8\./.test(process_1.version))
    : options.fixedFramerate;
  this._lastUpdateAt = null;
  this._updateInterval = options.updateInterval == null ? 50 : options.updateInterval;

  this._themes = options.themes || themes_1;
  this._theme = options.theme;
  var theme = this._computeTheme(options.theme);
  var template = options.template || [
    {type: 'progressbar', length: 20},
    {type: 'activityIndicator', kerning: 1, length: 1},
    {type: 'section', kerning: 1, default: ''},
    {type: 'subsection', kerning: 1, default: ''}
  ];
  this.setWriteTo(writeTo, options.tty);
  var PlumbingClass = options.Plumbing || plumbing;
  this._gauge = new PlumbingClass(theme, template, this.getWidth());

  this._$$doRedraw = callWith(this, this._doRedraw);
  this._$$handleSizeChange = callWith(this, this._handleSizeChange);

  this._cleanupOnExit = options.cleanupOnExit == null || options.cleanupOnExit;
  this._removeOnExit = null;

  if (options.enabled || (options.enabled == null && this._tty && this._tty.isTTY)) {
    this.enable();
  } else {
    this.disable();
  }
}
Gauge.prototype = {};

Gauge.prototype.isEnabled = function () {
  return !this._disabled
};

Gauge.prototype.setTemplate = function (template) {
  this._gauge.setTemplate(template);
  if (this._showing) this._requestRedraw();
};

Gauge.prototype._computeTheme = function (theme) {
  if (!theme) theme = {};
  if (typeof theme === 'string') {
    theme = this._themes.getTheme(theme);
  } else if (theme && (Object.keys(theme).length === 0 || theme.hasUnicode != null || theme.hasColor != null)) {
    var useUnicode = theme.hasUnicode == null ? hasUnicode_1() : theme.hasUnicode;
    var useColor = theme.hasColor == null ? hasColor : theme.hasColor;
    theme = this._themes.getDefault({hasUnicode: useUnicode, hasColor: useColor, platform: theme.platform});
  }
  return theme
};

Gauge.prototype.setThemeset = function (themes) {
  this._themes = themes;
  this.setTheme(this._theme);
};

Gauge.prototype.setTheme = function (theme) {
  this._gauge.setTheme(this._computeTheme(theme));
  if (this._showing) this._requestRedraw();
  this._theme = theme;
};

Gauge.prototype._requestRedraw = function () {
  this._needsRedraw = true;
  if (!this._fixedFramerate) this._doRedraw();
};

Gauge.prototype.getWidth = function () {
  return ((this._tty && this._tty.columns) || 80) - 1
};

Gauge.prototype.setWriteTo = function (writeTo, tty$$1) {
  var enabled = !this._disabled;
  if (enabled) this.disable();
  this._writeTo = writeTo;
  this._tty = tty$$1 ||
    (writeTo === process_1.stderr && process_1.stdout.isTTY && process_1.stdout) ||
    (writeTo.isTTY && writeTo) ||
    this._tty;
  if (this._gauge) this._gauge.setWidth(this.getWidth());
  if (enabled) this.enable();
};

Gauge.prototype.enable = function () {
  if (!this._disabled) return
  this._disabled = false;
  if (this._tty) this._enableEvents();
  if (this._showing) this.show();
};

Gauge.prototype.disable = function () {
  if (this._disabled) return
  if (this._showing) {
    this._lastUpdateAt = null;
    this._showing = false;
    this._doRedraw();
    this._showing = true;
  }
  this._disabled = true;
  if (this._tty) this._disableEvents();
};

Gauge.prototype._enableEvents = function () {
  if (this._cleanupOnExit) {
    this._removeOnExit = signalExit(callWith(this, this.disable));
  }
  this._tty.on('resize', this._$$handleSizeChange);
  if (this._fixedFramerate) {
    this.redrawTracker = setInterval_1(this._$$doRedraw, this._updateInterval);
    if (this.redrawTracker.unref) this.redrawTracker.unref();
  }
};

Gauge.prototype._disableEvents = function () {
  this._tty.removeListener('resize', this._$$handleSizeChange);
  if (this._fixedFramerate) clearInterval(this.redrawTracker);
  if (this._removeOnExit) this._removeOnExit();
};

Gauge.prototype.hide = function (cb) {
  if (this._disabled) return cb && process_1.nextTick(cb)
  if (!this._showing) return cb && process_1.nextTick(cb)
  this._showing = false;
  this._doRedraw();
  cb && setImmediate_1(cb);
};

Gauge.prototype.show = function (section, completed) {
  this._showing = true;
  if (typeof section === 'string') {
    this._status.section = section;
  } else if (typeof section === 'object') {
    var sectionKeys = Object.keys(section);
    for (var ii = 0; ii < sectionKeys.length; ++ii) {
      var key = sectionKeys[ii];
      this._status[key] = section[key];
    }
  }
  if (completed != null) this._status.completed = completed;
  if (this._disabled) return
  this._requestRedraw();
};

Gauge.prototype.pulse = function (subsection) {
  this._status.subsection = subsection || '';
  this._status.spun ++;
  if (this._disabled) return
  if (!this._showing) return
  this._requestRedraw();
};

Gauge.prototype._handleSizeChange = function () {
  this._gauge.setWidth(this._tty.columns - 1);
  this._requestRedraw();
};

Gauge.prototype._doRedraw = function () {
  if (this._disabled || this._paused) return
  if (!this._fixedFramerate) {
    var now = Date.now();
    if (this._lastUpdateAt && now - this._lastUpdateAt < this._updateInterval) return
    this._lastUpdateAt = now;
  }
  if (!this._showing && this._onScreen) {
    this._onScreen = false;
    var result = this._gauge.hide();
    if (this._hideCursor) {
      result += this._gauge.showCursor();
    }
    return this._writeTo.write(result)
  }
  if (!this._showing && !this._onScreen) return
  if (this._showing && !this._onScreen) {
    this._onScreen = true;
    this._needsRedraw = true;
    if (this._hideCursor) {
      this._writeTo.write(this._gauge.hideCursor());
    }
  }
  if (!this._needsRedraw) return
  if (!this._writeTo.write(this._gauge.show(this._status))) {
    this._paused = true;
    this._writeTo.on('drain', callWith(this, function () {
      this._paused = false;
      this._doRedraw();
    }));
  }
};

const { FORCE_COLOR, NODE_DISABLE_COLORS, TERM } = process.env;

const $ = {
	enabled: !NODE_DISABLE_COLORS && TERM !== 'dumb' && FORCE_COLOR !== '0'
};

const CODES = {
	// modifiers
	reset: code(0, 0),
	bold: code(1, 22),
	dim: code(2, 22),
	italic: code(3, 23),
	underline: code(4, 24),
	inverse: code(7, 27),
	hidden: code(8, 28),
	strikethrough: code(9, 29),

	// colors
	black: code(30, 39),
	red: code(31, 39),
	green: code(32, 39),
	yellow: code(33, 39),
	blue: code(34, 39),
	magenta: code(35, 39),
	cyan: code(36, 39),
	white: code(37, 39),
	gray: code(90, 39),

	// background colors
	bgBlack: code(40, 49),
	bgRed: code(41, 49),
	bgGreen: code(42, 49),
	bgYellow: code(43, 49),
	bgBlue: code(44, 49),
	bgMagenta: code(45, 49),
	bgCyan: code(46, 49),
	bgWhite: code(47, 49)
};

function code(open, close) {
	return {
		open: `\x1b[${open}m`,
		close: `\x1b[${close}m`,
		rgx: new RegExp(`\\x1b\\[${close}m`, 'g')
	};
}

function run(arr, str) {
	let i=0, tmp={};
	for (; i < arr.length;) {
		tmp = Reflect.get(CODES, arr[i++]);
		str = tmp.open + str.replace(tmp.rgx, tmp.open) + tmp.close;
	}
	return str;
}

function chain(keys) {
	let ctx = { keys };

	ctx.reset = $.reset.bind(ctx);
	ctx.bold = $.bold.bind(ctx);
	ctx.dim = $.dim.bind(ctx);
	ctx.italic = $.italic.bind(ctx);
	ctx.underline = $.underline.bind(ctx);
	ctx.inverse = $.inverse.bind(ctx);
	ctx.hidden = $.hidden.bind(ctx);
	ctx.strikethrough = $.strikethrough.bind(ctx);

	ctx.black = $.black.bind(ctx);
	ctx.red = $.red.bind(ctx);
	ctx.green = $.green.bind(ctx);
	ctx.yellow = $.yellow.bind(ctx);
	ctx.blue = $.blue.bind(ctx);
	ctx.magenta = $.magenta.bind(ctx);
	ctx.cyan = $.cyan.bind(ctx);
	ctx.white = $.white.bind(ctx);
	ctx.gray = $.gray.bind(ctx);

	ctx.bgBlack = $.bgBlack.bind(ctx);
	ctx.bgRed = $.bgRed.bind(ctx);
	ctx.bgGreen = $.bgGreen.bind(ctx);
	ctx.bgYellow = $.bgYellow.bind(ctx);
	ctx.bgBlue = $.bgBlue.bind(ctx);
	ctx.bgMagenta = $.bgMagenta.bind(ctx);
	ctx.bgCyan = $.bgCyan.bind(ctx);
	ctx.bgWhite = $.bgWhite.bind(ctx);

	return ctx;
}

function init(key) {
	return function (txt) {
		let isChain = !!this.keys;
		if (isChain) this.keys.includes(key) || this.keys.push(key);
		if (txt !== void 0) return $.enabled ? run(isChain ? this.keys : [key], txt+'') : txt+'';
		return isChain ? this : chain([key]);
	};
}

for (let key in CODES) {
	Object.defineProperty($, key, {
		value: init(key),
		enumerable: true,
		writable: false
	});
}

var kleur = $;

const processFn = (fn, opts) => function () {
	const P = opts.promiseModule;
	const args = new Array(arguments.length);

	for (let i = 0; i < arguments.length; i++) {
		args[i] = arguments[i];
	}

	return new P((resolve, reject) => {
		if (opts.errorFirst) {
			args.push(function (err, result) {
				if (opts.multiArgs) {
					const results = new Array(arguments.length - 1);

					for (let i = 1; i < arguments.length; i++) {
						results[i - 1] = arguments[i];
					}

					if (err) {
						results.unshift(err);
						reject(results);
					} else {
						resolve(results);
					}
				} else if (err) {
					reject(err);
				} else {
					resolve(result);
				}
			});
		} else {
			args.push(function (result) {
				if (opts.multiArgs) {
					const results = new Array(arguments.length - 1);

					for (let i = 0; i < arguments.length; i++) {
						results[i] = arguments[i];
					}

					resolve(results);
				} else {
					resolve(result);
				}
			});
		}

		fn.apply(this, args);
	});
};

var pify = (obj, opts) => {
	opts = Object.assign({
		exclude: [/.+(Sync|Stream)$/],
		errorFirst: true,
		promiseModule: Promise
	}, opts);

	const filter = key => {
		const match = pattern => typeof pattern === 'string' ? key === pattern : pattern.test(key);
		return opts.include ? opts.include.some(match) : !opts.exclude.some(match);
	};

	let ret;
	if (typeof obj === 'function') {
		ret = function () {
			if (opts.excludeMain) {
				return obj.apply(this, arguments);
			}

			return processFn(obj, opts).apply(this, arguments);
		};
	} else {
		ret = Object.create(Object.getPrototypeOf(obj));
	}

	for (const key in obj) { // eslint-disable-line guard-for-in
		const x = obj[key];
		ret[key] = typeof x === 'function' && filter(key) ? processFn(x, opts) : x;
	}

	return ret;
};

const defaults$2 = {
	mode: 0o777 & (~process.umask()),
	fs
};

// https://github.com/nodejs/node/issues/8987
// https://github.com/libuv/libuv/pull/1088
const checkPath = pth => {
	if (process.platform === 'win32') {
		const pathHasInvalidWinCharacters = /[<>:"|?*]/.test(pth.replace(path.parse(pth).root, ''));

		if (pathHasInvalidWinCharacters) {
			const err = new Error(`Path contains invalid characters: ${pth}`);
			err.code = 'EINVAL';
			throw err;
		}
	}
};

var makeDir = (input, opts) => Promise.resolve().then(() => {
	checkPath(input);
	opts = Object.assign({}, defaults$2, opts);

	const mkdir = pify(opts.fs.mkdir);
	const stat = pify(opts.fs.stat);

	const make = pth => {
		return mkdir(pth, opts.mode)
			.then(() => pth)
			.catch(err => {
				if (err.code === 'ENOENT') {
					if (err.message.includes('null bytes') || path.dirname(pth) === pth) {
						throw err;
					}

					return make(path.dirname(pth)).then(() => make(pth));
				}

				return stat(pth)
					.then(stats => stats.isDirectory() ? pth : Promise.reject())
					.catch(() => {
						throw err;
					});
			});
	};

	return make(path.resolve(input));
});

var sync = (input, opts) => {
	checkPath(input);
	opts = Object.assign({}, defaults$2, opts);

	const make = pth => {
		try {
			opts.fs.mkdirSync(pth, opts.mode);
		} catch (err) {
			if (err.code === 'ENOENT') {
				if (err.message.includes('null bytes') || path.dirname(pth) === pth) {
					throw err;
				}

				make(path.dirname(pth));
				return make(pth);
			}

			try {
				if (!opts.fs.statSync(pth).isDirectory()) {
					throw new Error('The path is not a directory');
				}
			} catch (_) {
				throw err;
			}
		}

		return pth;
	};

	return make(path.resolve(input));
};
makeDir.sync = sync;

const UNITS = [
	'B',
	'kB',
	'MB',
	'GB',
	'TB',
	'PB',
	'EB',
	'ZB',
	'YB'
];

/*
Formats the given number using `Number#toLocaleString`.
- If locale is a string, the value is expected to be a locale-key (for example: `de`).
- If locale is true, the system default locale is used for translation.
- If no value for locale is specified, the number is returned unmodified.
*/
const toLocaleString = (number, locale) => {
	let result = number;
	if (typeof locale === 'string') {
		result = number.toLocaleString(locale);
	} else if (locale === true) {
		result = number.toLocaleString();
	}

	return result;
};

var prettyBytes = (number, options) => {
	if (!Number.isFinite(number)) {
		throw new TypeError(`Expected a finite number, got ${typeof number}: ${number}`);
	}

	options = Object.assign({}, options);

	if (options.signed && number === 0) {
		return ' 0 B';
	}

	const isNegative = number < 0;
	const prefix = isNegative ? '-' : (options.signed ? '+' : '');

	if (isNegative) {
		number = -number;
	}

	if (number < 1) {
		const numberString = toLocaleString(number, options.locale);
		return prefix + numberString + ' B';
	}

	const exponent = Math.min(Math.floor(Math.log10(number) / 3), UNITS.length - 1);
	number = Number((number / Math.pow(1000, exponent)).toPrecision(3));
	const numberString = toLocaleString(number, options.locale);

	const unit = UNITS[exponent];

	return prefix + numberString + ' ' + unit;
};

var semver = createCommonjsModule(function (module, exports) {
exports = module.exports = SemVer;

// The debug function is excluded entirely from the minified version.
/* nomin */ var debug;
/* nomin */ if (typeof process === 'object' &&
    /* nomin */ process.env &&
    /* nomin */ process.env.NODE_DEBUG &&
    /* nomin */ /\bsemver\b/i.test(process.env.NODE_DEBUG))
  /* nomin */ debug = function() {
    /* nomin */ var args = Array.prototype.slice.call(arguments, 0);
    /* nomin */ args.unshift('SEMVER');
    /* nomin */ console.log.apply(console, args);
    /* nomin */ };
/* nomin */ else
  /* nomin */ debug = function() {};

// Note: this is the semver.org version of the spec that it implements
// Not necessarily the package version of this code.
exports.SEMVER_SPEC_VERSION = '2.0.0';

var MAX_LENGTH = 256;
var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;

// Max safe segment length for coercion.
var MAX_SAFE_COMPONENT_LENGTH = 16;

// The actual regexps go on exports.re
var re = exports.re = [];
var src = exports.src = [];
var R = 0;

// The following Regular Expressions can be used for tokenizing,
// validating, and parsing SemVer version strings.

// ## Numeric Identifier
// A single `0`, or a non-zero digit followed by zero or more digits.

var NUMERICIDENTIFIER = R++;
src[NUMERICIDENTIFIER] = '0|[1-9]\\d*';
var NUMERICIDENTIFIERLOOSE = R++;
src[NUMERICIDENTIFIERLOOSE] = '[0-9]+';


// ## Non-numeric Identifier
// Zero or more digits, followed by a letter or hyphen, and then zero or
// more letters, digits, or hyphens.

var NONNUMERICIDENTIFIER = R++;
src[NONNUMERICIDENTIFIER] = '\\d*[a-zA-Z-][a-zA-Z0-9-]*';


// ## Main Version
// Three dot-separated numeric identifiers.

var MAINVERSION = R++;
src[MAINVERSION] = '(' + src[NUMERICIDENTIFIER] + ')\\.' +
                   '(' + src[NUMERICIDENTIFIER] + ')\\.' +
                   '(' + src[NUMERICIDENTIFIER] + ')';

var MAINVERSIONLOOSE = R++;
src[MAINVERSIONLOOSE] = '(' + src[NUMERICIDENTIFIERLOOSE] + ')\\.' +
                        '(' + src[NUMERICIDENTIFIERLOOSE] + ')\\.' +
                        '(' + src[NUMERICIDENTIFIERLOOSE] + ')';

// ## Pre-release Version Identifier
// A numeric identifier, or a non-numeric identifier.

var PRERELEASEIDENTIFIER = R++;
src[PRERELEASEIDENTIFIER] = '(?:' + src[NUMERICIDENTIFIER] +
                            '|' + src[NONNUMERICIDENTIFIER] + ')';

var PRERELEASEIDENTIFIERLOOSE = R++;
src[PRERELEASEIDENTIFIERLOOSE] = '(?:' + src[NUMERICIDENTIFIERLOOSE] +
                                 '|' + src[NONNUMERICIDENTIFIER] + ')';


// ## Pre-release Version
// Hyphen, followed by one or more dot-separated pre-release version
// identifiers.

var PRERELEASE = R++;
src[PRERELEASE] = '(?:-(' + src[PRERELEASEIDENTIFIER] +
                  '(?:\\.' + src[PRERELEASEIDENTIFIER] + ')*))';

var PRERELEASELOOSE = R++;
src[PRERELEASELOOSE] = '(?:-?(' + src[PRERELEASEIDENTIFIERLOOSE] +
                       '(?:\\.' + src[PRERELEASEIDENTIFIERLOOSE] + ')*))';

// ## Build Metadata Identifier
// Any combination of digits, letters, or hyphens.

var BUILDIDENTIFIER = R++;
src[BUILDIDENTIFIER] = '[0-9A-Za-z-]+';

// ## Build Metadata
// Plus sign, followed by one or more period-separated build metadata
// identifiers.

var BUILD = R++;
src[BUILD] = '(?:\\+(' + src[BUILDIDENTIFIER] +
             '(?:\\.' + src[BUILDIDENTIFIER] + ')*))';


// ## Full Version String
// A main version, followed optionally by a pre-release version and
// build metadata.

// Note that the only major, minor, patch, and pre-release sections of
// the version string are capturing groups.  The build metadata is not a
// capturing group, because it should not ever be used in version
// comparison.

var FULL = R++;
var FULLPLAIN = 'v?' + src[MAINVERSION] +
                src[PRERELEASE] + '?' +
                src[BUILD] + '?';

src[FULL] = '^' + FULLPLAIN + '$';

// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
// common in the npm registry.
var LOOSEPLAIN = '[v=\\s]*' + src[MAINVERSIONLOOSE] +
                 src[PRERELEASELOOSE] + '?' +
                 src[BUILD] + '?';

var LOOSE = R++;
src[LOOSE] = '^' + LOOSEPLAIN + '$';

var GTLT = R++;
src[GTLT] = '((?:<|>)?=?)';

// Something like "2.*" or "1.2.x".
// Note that "x.x" is a valid xRange identifer, meaning "any version"
// Only the first item is strictly required.
var XRANGEIDENTIFIERLOOSE = R++;
src[XRANGEIDENTIFIERLOOSE] = src[NUMERICIDENTIFIERLOOSE] + '|x|X|\\*';
var XRANGEIDENTIFIER = R++;
src[XRANGEIDENTIFIER] = src[NUMERICIDENTIFIER] + '|x|X|\\*';

var XRANGEPLAIN = R++;
src[XRANGEPLAIN] = '[v=\\s]*(' + src[XRANGEIDENTIFIER] + ')' +
                   '(?:\\.(' + src[XRANGEIDENTIFIER] + ')' +
                   '(?:\\.(' + src[XRANGEIDENTIFIER] + ')' +
                   '(?:' + src[PRERELEASE] + ')?' +
                   src[BUILD] + '?' +
                   ')?)?';

var XRANGEPLAINLOOSE = R++;
src[XRANGEPLAINLOOSE] = '[v=\\s]*(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
                        '(?:\\.(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
                        '(?:\\.(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
                        '(?:' + src[PRERELEASELOOSE] + ')?' +
                        src[BUILD] + '?' +
                        ')?)?';

var XRANGE = R++;
src[XRANGE] = '^' + src[GTLT] + '\\s*' + src[XRANGEPLAIN] + '$';
var XRANGELOOSE = R++;
src[XRANGELOOSE] = '^' + src[GTLT] + '\\s*' + src[XRANGEPLAINLOOSE] + '$';

// Coercion.
// Extract anything that could conceivably be a part of a valid semver
var COERCE = R++;
src[COERCE] = '(?:^|[^\\d])' +
              '(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '})' +
              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
              '(?:$|[^\\d])';

// Tilde ranges.
// Meaning is "reasonably at or greater than"
var LONETILDE = R++;
src[LONETILDE] = '(?:~>?)';

var TILDETRIM = R++;
src[TILDETRIM] = '(\\s*)' + src[LONETILDE] + '\\s+';
re[TILDETRIM] = new RegExp(src[TILDETRIM], 'g');
var tildeTrimReplace = '$1~';

var TILDE = R++;
src[TILDE] = '^' + src[LONETILDE] + src[XRANGEPLAIN] + '$';
var TILDELOOSE = R++;
src[TILDELOOSE] = '^' + src[LONETILDE] + src[XRANGEPLAINLOOSE] + '$';

// Caret ranges.
// Meaning is "at least and backwards compatible with"
var LONECARET = R++;
src[LONECARET] = '(?:\\^)';

var CARETTRIM = R++;
src[CARETTRIM] = '(\\s*)' + src[LONECARET] + '\\s+';
re[CARETTRIM] = new RegExp(src[CARETTRIM], 'g');
var caretTrimReplace = '$1^';

var CARET = R++;
src[CARET] = '^' + src[LONECARET] + src[XRANGEPLAIN] + '$';
var CARETLOOSE = R++;
src[CARETLOOSE] = '^' + src[LONECARET] + src[XRANGEPLAINLOOSE] + '$';

// A simple gt/lt/eq thing, or just "" to indicate "any version"
var COMPARATORLOOSE = R++;
src[COMPARATORLOOSE] = '^' + src[GTLT] + '\\s*(' + LOOSEPLAIN + ')$|^$';
var COMPARATOR = R++;
src[COMPARATOR] = '^' + src[GTLT] + '\\s*(' + FULLPLAIN + ')$|^$';


// An expression to strip any whitespace between the gtlt and the thing
// it modifies, so that `> 1.2.3` ==> `>1.2.3`
var COMPARATORTRIM = R++;
src[COMPARATORTRIM] = '(\\s*)' + src[GTLT] +
                      '\\s*(' + LOOSEPLAIN + '|' + src[XRANGEPLAIN] + ')';

// this one has to use the /g flag
re[COMPARATORTRIM] = new RegExp(src[COMPARATORTRIM], 'g');
var comparatorTrimReplace = '$1$2$3';


// Something like `1.2.3 - 1.2.4`
// Note that these all use the loose form, because they'll be
// checked against either the strict or loose comparator form
// later.
var HYPHENRANGE = R++;
src[HYPHENRANGE] = '^\\s*(' + src[XRANGEPLAIN] + ')' +
                   '\\s+-\\s+' +
                   '(' + src[XRANGEPLAIN] + ')' +
                   '\\s*$';

var HYPHENRANGELOOSE = R++;
src[HYPHENRANGELOOSE] = '^\\s*(' + src[XRANGEPLAINLOOSE] + ')' +
                        '\\s+-\\s+' +
                        '(' + src[XRANGEPLAINLOOSE] + ')' +
                        '\\s*$';

// Star ranges basically just allow anything at all.
var STAR = R++;
src[STAR] = '(<|>)?=?\\s*\\*';

// Compile to actual regexp objects.
// All are flag-free, unless they were created above with a flag.
for (var i = 0; i < R; i++) {
  debug(i, src[i]);
  if (!re[i])
    re[i] = new RegExp(src[i]);
}

exports.parse = parse;
function parse(version, options) {
  if (!options || typeof options !== 'object')
    options = { loose: !!options, includePrerelease: false };

  if (version instanceof SemVer)
    return version;

  if (typeof version !== 'string')
    return null;

  if (version.length > MAX_LENGTH)
    return null;

  var r = options.loose ? re[LOOSE] : re[FULL];
  if (!r.test(version))
    return null;

  try {
    return new SemVer(version, options);
  } catch (er) {
    return null;
  }
}

exports.valid = valid;
function valid(version, options) {
  var v = parse(version, options);
  return v ? v.version : null;
}


exports.clean = clean;
function clean(version, options) {
  var s = parse(version.trim().replace(/^[=v]+/, ''), options);
  return s ? s.version : null;
}

exports.SemVer = SemVer;

function SemVer(version, options) {
  if (!options || typeof options !== 'object')
    options = { loose: !!options, includePrerelease: false };
  if (version instanceof SemVer) {
    if (version.loose === options.loose)
      return version;
    else
      version = version.version;
  } else if (typeof version !== 'string') {
    throw new TypeError('Invalid Version: ' + version);
  }

  if (version.length > MAX_LENGTH)
    throw new TypeError('version is longer than ' + MAX_LENGTH + ' characters')

  if (!(this instanceof SemVer))
    return new SemVer(version, options);

  debug('SemVer', version, options);
  this.options = options;
  this.loose = !!options.loose;

  var m = version.trim().match(options.loose ? re[LOOSE] : re[FULL]);

  if (!m)
    throw new TypeError('Invalid Version: ' + version);

  this.raw = version;

  // these are actually numbers
  this.major = +m[1];
  this.minor = +m[2];
  this.patch = +m[3];

  if (this.major > MAX_SAFE_INTEGER || this.major < 0)
    throw new TypeError('Invalid major version')

  if (this.minor > MAX_SAFE_INTEGER || this.minor < 0)
    throw new TypeError('Invalid minor version')

  if (this.patch > MAX_SAFE_INTEGER || this.patch < 0)
    throw new TypeError('Invalid patch version')

  // numberify any prerelease numeric ids
  if (!m[4])
    this.prerelease = [];
  else
    this.prerelease = m[4].split('.').map(function(id) {
      if (/^[0-9]+$/.test(id)) {
        var num = +id;
        if (num >= 0 && num < MAX_SAFE_INTEGER)
          return num;
      }
      return id;
    });

  this.build = m[5] ? m[5].split('.') : [];
  this.format();
}

SemVer.prototype.format = function() {
  this.version = this.major + '.' + this.minor + '.' + this.patch;
  if (this.prerelease.length)
    this.version += '-' + this.prerelease.join('.');
  return this.version;
};

SemVer.prototype.toString = function() {
  return this.version;
};

SemVer.prototype.compare = function(other) {
  debug('SemVer.compare', this.version, this.options, other);
  if (!(other instanceof SemVer))
    other = new SemVer(other, this.options);

  return this.compareMain(other) || this.comparePre(other);
};

SemVer.prototype.compareMain = function(other) {
  if (!(other instanceof SemVer))
    other = new SemVer(other, this.options);

  return compareIdentifiers(this.major, other.major) ||
         compareIdentifiers(this.minor, other.minor) ||
         compareIdentifiers(this.patch, other.patch);
};

SemVer.prototype.comparePre = function(other) {
  if (!(other instanceof SemVer))
    other = new SemVer(other, this.options);

  // NOT having a prerelease is > having one
  if (this.prerelease.length && !other.prerelease.length)
    return -1;
  else if (!this.prerelease.length && other.prerelease.length)
    return 1;
  else if (!this.prerelease.length && !other.prerelease.length)
    return 0;

  var i = 0;
  do {
    var a = this.prerelease[i];
    var b = other.prerelease[i];
    debug('prerelease compare', i, a, b);
    if (a === undefined && b === undefined)
      return 0;
    else if (b === undefined)
      return 1;
    else if (a === undefined)
      return -1;
    else if (a === b)
      continue;
    else
      return compareIdentifiers(a, b);
  } while (++i);
};

// preminor will bump the version up to the next minor release, and immediately
// down to pre-release. premajor and prepatch work the same way.
SemVer.prototype.inc = function(release, identifier) {
  switch (release) {
    case 'premajor':
      this.prerelease.length = 0;
      this.patch = 0;
      this.minor = 0;
      this.major++;
      this.inc('pre', identifier);
      break;
    case 'preminor':
      this.prerelease.length = 0;
      this.patch = 0;
      this.minor++;
      this.inc('pre', identifier);
      break;
    case 'prepatch':
      // If this is already a prerelease, it will bump to the next version
      // drop any prereleases that might already exist, since they are not
      // relevant at this point.
      this.prerelease.length = 0;
      this.inc('patch', identifier);
      this.inc('pre', identifier);
      break;
    // If the input is a non-prerelease version, this acts the same as
    // prepatch.
    case 'prerelease':
      if (this.prerelease.length === 0)
        this.inc('patch', identifier);
      this.inc('pre', identifier);
      break;

    case 'major':
      // If this is a pre-major version, bump up to the same major version.
      // Otherwise increment major.
      // 1.0.0-5 bumps to 1.0.0
      // 1.1.0 bumps to 2.0.0
      if (this.minor !== 0 || this.patch !== 0 || this.prerelease.length === 0)
        this.major++;
      this.minor = 0;
      this.patch = 0;
      this.prerelease = [];
      break;
    case 'minor':
      // If this is a pre-minor version, bump up to the same minor version.
      // Otherwise increment minor.
      // 1.2.0-5 bumps to 1.2.0
      // 1.2.1 bumps to 1.3.0
      if (this.patch !== 0 || this.prerelease.length === 0)
        this.minor++;
      this.patch = 0;
      this.prerelease = [];
      break;
    case 'patch':
      // If this is not a pre-release version, it will increment the patch.
      // If it is a pre-release it will bump up to the same patch version.
      // 1.2.0-5 patches to 1.2.0
      // 1.2.0 patches to 1.2.1
      if (this.prerelease.length === 0)
        this.patch++;
      this.prerelease = [];
      break;
    // This probably shouldn't be used publicly.
    // 1.0.0 "pre" would become 1.0.0-0 which is the wrong direction.
    case 'pre':
      if (this.prerelease.length === 0)
        this.prerelease = [0];
      else {
        var i = this.prerelease.length;
        while (--i >= 0) {
          if (typeof this.prerelease[i] === 'number') {
            this.prerelease[i]++;
            i = -2;
          }
        }
        if (i === -1) // didn't increment anything
          this.prerelease.push(0);
      }
      if (identifier) {
        // 1.2.0-beta.1 bumps to 1.2.0-beta.2,
        // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
        if (this.prerelease[0] === identifier) {
          if (isNaN(this.prerelease[1]))
            this.prerelease = [identifier, 0];
        } else
          this.prerelease = [identifier, 0];
      }
      break;

    default:
      throw new Error('invalid increment argument: ' + release);
  }
  this.format();
  this.raw = this.version;
  return this;
};

exports.inc = inc;
function inc(version, release, loose, identifier) {
  if (typeof(loose) === 'string') {
    identifier = loose;
    loose = undefined;
  }

  try {
    return new SemVer(version, loose).inc(release, identifier).version;
  } catch (er) {
    return null;
  }
}

exports.diff = diff;
function diff(version1, version2) {
  if (eq(version1, version2)) {
    return null;
  } else {
    var v1 = parse(version1);
    var v2 = parse(version2);
    if (v1.prerelease.length || v2.prerelease.length) {
      for (var key in v1) {
        if (key === 'major' || key === 'minor' || key === 'patch') {
          if (v1[key] !== v2[key]) {
            return 'pre'+key;
          }
        }
      }
      return 'prerelease';
    }
    for (var key in v1) {
      if (key === 'major' || key === 'minor' || key === 'patch') {
        if (v1[key] !== v2[key]) {
          return key;
        }
      }
    }
  }
}

exports.compareIdentifiers = compareIdentifiers;

var numeric = /^[0-9]+$/;
function compareIdentifiers(a, b) {
  var anum = numeric.test(a);
  var bnum = numeric.test(b);

  if (anum && bnum) {
    a = +a;
    b = +b;
  }

  return (anum && !bnum) ? -1 :
         (bnum && !anum) ? 1 :
         a < b ? -1 :
         a > b ? 1 :
         0;
}

exports.rcompareIdentifiers = rcompareIdentifiers;
function rcompareIdentifiers(a, b) {
  return compareIdentifiers(b, a);
}

exports.major = major;
function major(a, loose) {
  return new SemVer(a, loose).major;
}

exports.minor = minor;
function minor(a, loose) {
  return new SemVer(a, loose).minor;
}

exports.patch = patch;
function patch(a, loose) {
  return new SemVer(a, loose).patch;
}

exports.compare = compare;
function compare(a, b, loose) {
  return new SemVer(a, loose).compare(new SemVer(b, loose));
}

exports.compareLoose = compareLoose;
function compareLoose(a, b) {
  return compare(a, b, true);
}

exports.rcompare = rcompare;
function rcompare(a, b, loose) {
  return compare(b, a, loose);
}

exports.sort = sort;
function sort(list, loose) {
  return list.sort(function(a, b) {
    return exports.compare(a, b, loose);
  });
}

exports.rsort = rsort;
function rsort(list, loose) {
  return list.sort(function(a, b) {
    return exports.rcompare(a, b, loose);
  });
}

exports.gt = gt;
function gt(a, b, loose) {
  return compare(a, b, loose) > 0;
}

exports.lt = lt;
function lt(a, b, loose) {
  return compare(a, b, loose) < 0;
}

exports.eq = eq;
function eq(a, b, loose) {
  return compare(a, b, loose) === 0;
}

exports.neq = neq;
function neq(a, b, loose) {
  return compare(a, b, loose) !== 0;
}

exports.gte = gte;
function gte(a, b, loose) {
  return compare(a, b, loose) >= 0;
}

exports.lte = lte;
function lte(a, b, loose) {
  return compare(a, b, loose) <= 0;
}

exports.cmp = cmp;
function cmp(a, op, b, loose) {
  var ret;
  switch (op) {
    case '===':
      if (typeof a === 'object') a = a.version;
      if (typeof b === 'object') b = b.version;
      ret = a === b;
      break;
    case '!==':
      if (typeof a === 'object') a = a.version;
      if (typeof b === 'object') b = b.version;
      ret = a !== b;
      break;
    case '': case '=': case '==': ret = eq(a, b, loose); break;
    case '!=': ret = neq(a, b, loose); break;
    case '>': ret = gt(a, b, loose); break;
    case '>=': ret = gte(a, b, loose); break;
    case '<': ret = lt(a, b, loose); break;
    case '<=': ret = lte(a, b, loose); break;
    default: throw new TypeError('Invalid operator: ' + op);
  }
  return ret;
}

exports.Comparator = Comparator;
function Comparator(comp, options) {
  if (!options || typeof options !== 'object')
    options = { loose: !!options, includePrerelease: false };

  if (comp instanceof Comparator) {
    if (comp.loose === !!options.loose)
      return comp;
    else
      comp = comp.value;
  }

  if (!(this instanceof Comparator))
    return new Comparator(comp, options);

  debug('comparator', comp, options);
  this.options = options;
  this.loose = !!options.loose;
  this.parse(comp);

  if (this.semver === ANY)
    this.value = '';
  else
    this.value = this.operator + this.semver.version;

  debug('comp', this);
}

var ANY = {};
Comparator.prototype.parse = function(comp) {
  var r = this.options.loose ? re[COMPARATORLOOSE] : re[COMPARATOR];
  var m = comp.match(r);

  if (!m)
    throw new TypeError('Invalid comparator: ' + comp);

  this.operator = m[1];
  if (this.operator === '=')
    this.operator = '';

  // if it literally is just '>' or '' then allow anything.
  if (!m[2])
    this.semver = ANY;
  else
    this.semver = new SemVer(m[2], this.options.loose);
};

Comparator.prototype.toString = function() {
  return this.value;
};

Comparator.prototype.test = function(version) {
  debug('Comparator.test', version, this.options.loose);

  if (this.semver === ANY)
    return true;

  if (typeof version === 'string')
    version = new SemVer(version, this.options);

  return cmp(version, this.operator, this.semver, this.options);
};

Comparator.prototype.intersects = function(comp, options) {
  if (!(comp instanceof Comparator)) {
    throw new TypeError('a Comparator is required');
  }

  if (!options || typeof options !== 'object')
    options = { loose: !!options, includePrerelease: false };

  var rangeTmp;

  if (this.operator === '') {
    rangeTmp = new Range(comp.value, options);
    return satisfies(this.value, rangeTmp, options);
  } else if (comp.operator === '') {
    rangeTmp = new Range(this.value, options);
    return satisfies(comp.semver, rangeTmp, options);
  }

  var sameDirectionIncreasing =
    (this.operator === '>=' || this.operator === '>') &&
    (comp.operator === '>=' || comp.operator === '>');
  var sameDirectionDecreasing =
    (this.operator === '<=' || this.operator === '<') &&
    (comp.operator === '<=' || comp.operator === '<');
  var sameSemVer = this.semver.version === comp.semver.version;
  var differentDirectionsInclusive =
    (this.operator === '>=' || this.operator === '<=') &&
    (comp.operator === '>=' || comp.operator === '<=');
  var oppositeDirectionsLessThan =
    cmp(this.semver, '<', comp.semver, options) &&
    ((this.operator === '>=' || this.operator === '>') &&
    (comp.operator === '<=' || comp.operator === '<'));
  var oppositeDirectionsGreaterThan =
    cmp(this.semver, '>', comp.semver, options) &&
    ((this.operator === '<=' || this.operator === '<') &&
    (comp.operator === '>=' || comp.operator === '>'));

  return sameDirectionIncreasing || sameDirectionDecreasing ||
    (sameSemVer && differentDirectionsInclusive) ||
    oppositeDirectionsLessThan || oppositeDirectionsGreaterThan;
};


exports.Range = Range;
function Range(range, options) {
  if (!options || typeof options !== 'object')
    options = { loose: !!options, includePrerelease: false };

  if (range instanceof Range) {
    if (range.loose === !!options.loose &&
        range.includePrerelease === !!options.includePrerelease) {
      return range;
    } else {
      return new Range(range.raw, options);
    }
  }

  if (range instanceof Comparator) {
    return new Range(range.value, options);
  }

  if (!(this instanceof Range))
    return new Range(range, options);

  this.options = options;
  this.loose = !!options.loose;
  this.includePrerelease = !!options.includePrerelease;

  // First, split based on boolean or ||
  this.raw = range;
  this.set = range.split(/\s*\|\|\s*/).map(function(range) {
    return this.parseRange(range.trim());
  }, this).filter(function(c) {
    // throw out any that are not relevant for whatever reason
    return c.length;
  });

  if (!this.set.length) {
    throw new TypeError('Invalid SemVer Range: ' + range);
  }

  this.format();
}

Range.prototype.format = function() {
  this.range = this.set.map(function(comps) {
    return comps.join(' ').trim();
  }).join('||').trim();
  return this.range;
};

Range.prototype.toString = function() {
  return this.range;
};

Range.prototype.parseRange = function(range) {
  var loose = this.options.loose;
  range = range.trim();
  // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
  var hr = loose ? re[HYPHENRANGELOOSE] : re[HYPHENRANGE];
  range = range.replace(hr, hyphenReplace);
  debug('hyphen replace', range);
  // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
  range = range.replace(re[COMPARATORTRIM], comparatorTrimReplace);
  debug('comparator trim', range, re[COMPARATORTRIM]);

  // `~ 1.2.3` => `~1.2.3`
  range = range.replace(re[TILDETRIM], tildeTrimReplace);

  // `^ 1.2.3` => `^1.2.3`
  range = range.replace(re[CARETTRIM], caretTrimReplace);

  // normalize spaces
  range = range.split(/\s+/).join(' ');

  // At this point, the range is completely trimmed and
  // ready to be split into comparators.

  var compRe = loose ? re[COMPARATORLOOSE] : re[COMPARATOR];
  var set = range.split(' ').map(function(comp) {
    return parseComparator(comp, this.options);
  }, this).join(' ').split(/\s+/);
  if (this.options.loose) {
    // in loose mode, throw out any that are not valid comparators
    set = set.filter(function(comp) {
      return !!comp.match(compRe);
    });
  }
  set = set.map(function(comp) {
    return new Comparator(comp, this.options);
  }, this);

  return set;
};

Range.prototype.intersects = function(range, options) {
  if (!(range instanceof Range)) {
    throw new TypeError('a Range is required');
  }

  return this.set.some(function(thisComparators) {
    return thisComparators.every(function(thisComparator) {
      return range.set.some(function(rangeComparators) {
        return rangeComparators.every(function(rangeComparator) {
          return thisComparator.intersects(rangeComparator, options);
        });
      });
    });
  });
};

// Mostly just for testing and legacy API reasons
exports.toComparators = toComparators;
function toComparators(range, options) {
  return new Range(range, options).set.map(function(comp) {
    return comp.map(function(c) {
      return c.value;
    }).join(' ').trim().split(' ');
  });
}

// comprised of xranges, tildes, stars, and gtlt's at this point.
// already replaced the hyphen ranges
// turn into a set of JUST comparators.
function parseComparator(comp, options) {
  debug('comp', comp, options);
  comp = replaceCarets(comp, options);
  debug('caret', comp);
  comp = replaceTildes(comp, options);
  debug('tildes', comp);
  comp = replaceXRanges(comp, options);
  debug('xrange', comp);
  comp = replaceStars(comp, options);
  debug('stars', comp);
  return comp;
}

function isX(id) {
  return !id || id.toLowerCase() === 'x' || id === '*';
}

// ~, ~> --> * (any, kinda silly)
// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0
// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0
// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0
// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0
// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0
function replaceTildes(comp, options) {
  return comp.trim().split(/\s+/).map(function(comp) {
    return replaceTilde(comp, options);
  }).join(' ');
}

function replaceTilde(comp, options) {
  if (!options || typeof options !== 'object')
    options = { loose: !!options, includePrerelease: false };
  var r = options.loose ? re[TILDELOOSE] : re[TILDE];
  return comp.replace(r, function(_, M, m, p, pr) {
    debug('tilde', comp, _, M, m, p, pr);
    var ret;

    if (isX(M))
      ret = '';
    else if (isX(m))
      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0';
    else if (isX(p))
      // ~1.2 == >=1.2.0 <1.3.0
      ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0';
    else if (pr) {
      debug('replaceTilde pr', pr);
      if (pr.charAt(0) !== '-')
        pr = '-' + pr;
      ret = '>=' + M + '.' + m + '.' + p + pr +
            ' <' + M + '.' + (+m + 1) + '.0';
    } else
      // ~1.2.3 == >=1.2.3 <1.3.0
      ret = '>=' + M + '.' + m + '.' + p +
            ' <' + M + '.' + (+m + 1) + '.0';

    debug('tilde return', ret);
    return ret;
  });
}

// ^ --> * (any, kinda silly)
// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0
// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0
// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0
// ^1.2.3 --> >=1.2.3 <2.0.0
// ^1.2.0 --> >=1.2.0 <2.0.0
function replaceCarets(comp, options) {
  return comp.trim().split(/\s+/).map(function(comp) {
    return replaceCaret(comp, options);
  }).join(' ');
}

function replaceCaret(comp, options) {
  debug('caret', comp, options);
  if (!options || typeof options !== 'object')
    options = { loose: !!options, includePrerelease: false };
  var r = options.loose ? re[CARETLOOSE] : re[CARET];
  return comp.replace(r, function(_, M, m, p, pr) {
    debug('caret', comp, _, M, m, p, pr);
    var ret;

    if (isX(M))
      ret = '';
    else if (isX(m))
      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0';
    else if (isX(p)) {
      if (M === '0')
        ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0';
      else
        ret = '>=' + M + '.' + m + '.0 <' + (+M + 1) + '.0.0';
    } else if (pr) {
      debug('replaceCaret pr', pr);
      if (pr.charAt(0) !== '-')
        pr = '-' + pr;
      if (M === '0') {
        if (m === '0')
          ret = '>=' + M + '.' + m + '.' + p + pr +
                ' <' + M + '.' + m + '.' + (+p + 1);
        else
          ret = '>=' + M + '.' + m + '.' + p + pr +
                ' <' + M + '.' + (+m + 1) + '.0';
      } else
        ret = '>=' + M + '.' + m + '.' + p + pr +
              ' <' + (+M + 1) + '.0.0';
    } else {
      debug('no pr');
      if (M === '0') {
        if (m === '0')
          ret = '>=' + M + '.' + m + '.' + p +
                ' <' + M + '.' + m + '.' + (+p + 1);
        else
          ret = '>=' + M + '.' + m + '.' + p +
                ' <' + M + '.' + (+m + 1) + '.0';
      } else
        ret = '>=' + M + '.' + m + '.' + p +
              ' <' + (+M + 1) + '.0.0';
    }

    debug('caret return', ret);
    return ret;
  });
}

function replaceXRanges(comp, options) {
  debug('replaceXRanges', comp, options);
  return comp.split(/\s+/).map(function(comp) {
    return replaceXRange(comp, options);
  }).join(' ');
}

function replaceXRange(comp, options) {
  comp = comp.trim();
  if (!options || typeof options !== 'object')
    options = { loose: !!options, includePrerelease: false };
  var r = options.loose ? re[XRANGELOOSE] : re[XRANGE];
  return comp.replace(r, function(ret, gtlt, M, m, p, pr) {
    debug('xRange', comp, ret, gtlt, M, m, p, pr);
    var xM = isX(M);
    var xm = xM || isX(m);
    var xp = xm || isX(p);
    var anyX = xp;

    if (gtlt === '=' && anyX)
      gtlt = '';

    if (xM) {
      if (gtlt === '>' || gtlt === '<') {
        // nothing is allowed
        ret = '<0.0.0';
      } else {
        // nothing is forbidden
        ret = '*';
      }
    } else if (gtlt && anyX) {
      // replace X with 0
      if (xm)
        m = 0;
      if (xp)
        p = 0;

      if (gtlt === '>') {
        // >1 => >=2.0.0
        // >1.2 => >=1.3.0
        // >1.2.3 => >= 1.2.4
        gtlt = '>=';
        if (xm) {
          M = +M + 1;
          m = 0;
          p = 0;
        } else if (xp) {
          m = +m + 1;
          p = 0;
        }
      } else if (gtlt === '<=') {
        // <=0.7.x is actually <0.8.0, since any 0.7.x should
        // pass.  Similarly, <=7.x is actually <8.0.0, etc.
        gtlt = '<';
        if (xm)
          M = +M + 1;
        else
          m = +m + 1;
      }

      ret = gtlt + M + '.' + m + '.' + p;
    } else if (xm) {
      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0';
    } else if (xp) {
      ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0';
    }

    debug('xRange return', ret);

    return ret;
  });
}

// Because * is AND-ed with everything else in the comparator,
// and '' means "any version", just remove the *s entirely.
function replaceStars(comp, options) {
  debug('replaceStars', comp, options);
  // Looseness is ignored here.  star is always as loose as it gets!
  return comp.trim().replace(re[STAR], '');
}

// This function is passed to string.replace(re[HYPHENRANGE])
// M, m, patch, prerelease, build
// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
// 1.2.3 - 3.4 => >=1.2.0 <3.5.0 Any 3.4.x will do
// 1.2 - 3.4 => >=1.2.0 <3.5.0
function hyphenReplace($0,
                       from, fM, fm, fp, fpr, fb,
                       to, tM, tm, tp, tpr, tb) {

  if (isX(fM))
    from = '';
  else if (isX(fm))
    from = '>=' + fM + '.0.0';
  else if (isX(fp))
    from = '>=' + fM + '.' + fm + '.0';
  else
    from = '>=' + from;

  if (isX(tM))
    to = '';
  else if (isX(tm))
    to = '<' + (+tM + 1) + '.0.0';
  else if (isX(tp))
    to = '<' + tM + '.' + (+tm + 1) + '.0';
  else if (tpr)
    to = '<=' + tM + '.' + tm + '.' + tp + '-' + tpr;
  else
    to = '<=' + to;

  return (from + ' ' + to).trim();
}


// if ANY of the sets match ALL of its comparators, then pass
Range.prototype.test = function(version) {
  if (!version)
    return false;

  if (typeof version === 'string')
    version = new SemVer(version, this.options);

  for (var i = 0; i < this.set.length; i++) {
    if (testSet(this.set[i], version, this.options))
      return true;
  }
  return false;
};

function testSet(set, version, options) {
  for (var i = 0; i < set.length; i++) {
    if (!set[i].test(version))
      return false;
  }

  if (!options)
    options = {};

  if (version.prerelease.length && !options.includePrerelease) {
    // Find the set of versions that are allowed to have prereleases
    // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
    // That should allow `1.2.3-pr.2` to pass.
    // However, `1.2.4-alpha.notready` should NOT be allowed,
    // even though it's within the range set by the comparators.
    for (var i = 0; i < set.length; i++) {
      debug(set[i].semver);
      if (set[i].semver === ANY)
        continue;

      if (set[i].semver.prerelease.length > 0) {
        var allowed = set[i].semver;
        if (allowed.major === version.major &&
            allowed.minor === version.minor &&
            allowed.patch === version.patch)
          return true;
      }
    }

    // Version has a -pre, but it's not one of the ones we like.
    return false;
  }

  return true;
}

exports.satisfies = satisfies;
function satisfies(version, range, options) {
  try {
    range = new Range(range, options);
  } catch (er) {
    return false;
  }
  return range.test(version);
}

exports.maxSatisfying = maxSatisfying;
function maxSatisfying(versions, range, options) {
  var max = null;
  var maxSV = null;
  try {
    var rangeObj = new Range(range, options);
  } catch (er) {
    return null;
  }
  versions.forEach(function (v) {
    if (rangeObj.test(v)) { // satisfies(v, range, options)
      if (!max || maxSV.compare(v) === -1) { // compare(max, v, true)
        max = v;
        maxSV = new SemVer(max, options);
      }
    }
  });
  return max;
}

exports.minSatisfying = minSatisfying;
function minSatisfying(versions, range, options) {
  var min = null;
  var minSV = null;
  try {
    var rangeObj = new Range(range, options);
  } catch (er) {
    return null;
  }
  versions.forEach(function (v) {
    if (rangeObj.test(v)) { // satisfies(v, range, options)
      if (!min || minSV.compare(v) === 1) { // compare(min, v, true)
        min = v;
        minSV = new SemVer(min, options);
      }
    }
  });
  return min;
}

exports.validRange = validRange;
function validRange(range, options) {
  try {
    // Return '*' instead of '' so that truthiness works.
    // This will throw if it's invalid anyway
    return new Range(range, options).range || '*';
  } catch (er) {
    return null;
  }
}

// Determine if version is less than all the versions possible in the range
exports.ltr = ltr;
function ltr(version, range, options) {
  return outside(version, range, '<', options);
}

// Determine if version is greater than all the versions possible in the range.
exports.gtr = gtr;
function gtr(version, range, options) {
  return outside(version, range, '>', options);
}

exports.outside = outside;
function outside(version, range, hilo, options) {
  version = new SemVer(version, options);
  range = new Range(range, options);

  var gtfn, ltefn, ltfn, comp, ecomp;
  switch (hilo) {
    case '>':
      gtfn = gt;
      ltefn = lte;
      ltfn = lt;
      comp = '>';
      ecomp = '>=';
      break;
    case '<':
      gtfn = lt;
      ltefn = gte;
      ltfn = gt;
      comp = '<';
      ecomp = '<=';
      break;
    default:
      throw new TypeError('Must provide a hilo val of "<" or ">"');
  }

  // If it satisifes the range it is not outside
  if (satisfies(version, range, options)) {
    return false;
  }

  // From now on, variable terms are as if we're in "gtr" mode.
  // but note that everything is flipped for the "ltr" function.

  for (var i = 0; i < range.set.length; ++i) {
    var comparators = range.set[i];

    var high = null;
    var low = null;

    comparators.forEach(function(comparator) {
      if (comparator.semver === ANY) {
        comparator = new Comparator('>=0.0.0');
      }
      high = high || comparator;
      low = low || comparator;
      if (gtfn(comparator.semver, high.semver, options)) {
        high = comparator;
      } else if (ltfn(comparator.semver, low.semver, options)) {
        low = comparator;
      }
    });

    // If the edge version comparator has a operator then our version
    // isn't outside it
    if (high.operator === comp || high.operator === ecomp) {
      return false;
    }

    // If the lowest version comparator has an operator and our version
    // is less than it then it isn't higher than the range
    if ((!low.operator || low.operator === comp) &&
        ltefn(version, low.semver)) {
      return false;
    } else if (low.operator === ecomp && ltfn(version, low.semver)) {
      return false;
    }
  }
  return true;
}

exports.prerelease = prerelease;
function prerelease(version, options) {
  var parsed = parse(version, options);
  return (parsed && parsed.prerelease.length) ? parsed.prerelease : null;
}

exports.intersects = intersects;
function intersects(r1, r2, options) {
  r1 = new Range(r1, options);
  r2 = new Range(r2, options);
  return r1.intersects(r2)
}

exports.coerce = coerce;
function coerce(version) {
  if (version instanceof SemVer)
    return version;

  if (typeof version !== 'string')
    return null;

  var match = version.match(re[COERCE]);

  if (match == null)
    return null;

  return parse((match[1] || '0') + '.' + (match[2] || '0') + '.' + (match[3] || '0')); 
}
});
var semver_1 = semver.SEMVER_SPEC_VERSION;
var semver_2 = semver.re;
var semver_3 = semver.src;
var semver_4 = semver.parse;
var semver_5 = semver.valid;
var semver_6 = semver.clean;
var semver_7 = semver.SemVer;
var semver_8 = semver.inc;
var semver_9 = semver.diff;
var semver_10 = semver.compareIdentifiers;
var semver_11 = semver.rcompareIdentifiers;
var semver_12 = semver.major;
var semver_13 = semver.minor;
var semver_14 = semver.patch;
var semver_15 = semver.compare;
var semver_16 = semver.compareLoose;
var semver_17 = semver.rcompare;
var semver_18 = semver.sort;
var semver_19 = semver.rsort;
var semver_20 = semver.gt;
var semver_21 = semver.lt;
var semver_22 = semver.eq;
var semver_23 = semver.neq;
var semver_24 = semver.gte;
var semver_25 = semver.lte;
var semver_26 = semver.cmp;
var semver_27 = semver.Comparator;
var semver_28 = semver.Range;
var semver_29 = semver.toComparators;
var semver_30 = semver.satisfies;
var semver_31 = semver.maxSatisfying;
var semver_32 = semver.minSatisfying;
var semver_33 = semver.validRange;
var semver_34 = semver.ltr;
var semver_35 = semver.gtr;
var semver_36 = semver.outside;
var semver_37 = semver.prerelease;
var semver_38 = semver.intersects;
var semver_39 = semver.coerce;

var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;

var escapeStringRegexp = function (str) {
	if (typeof str !== 'string') {
		throw new TypeError('Expected a string');
	}

	return str.replace(matchOperatorsRe, '\\$&');
};

var colorName = {
	"aliceblue": [240, 248, 255],
	"antiquewhite": [250, 235, 215],
	"aqua": [0, 255, 255],
	"aquamarine": [127, 255, 212],
	"azure": [240, 255, 255],
	"beige": [245, 245, 220],
	"bisque": [255, 228, 196],
	"black": [0, 0, 0],
	"blanchedalmond": [255, 235, 205],
	"blue": [0, 0, 255],
	"blueviolet": [138, 43, 226],
	"brown": [165, 42, 42],
	"burlywood": [222, 184, 135],
	"cadetblue": [95, 158, 160],
	"chartreuse": [127, 255, 0],
	"chocolate": [210, 105, 30],
	"coral": [255, 127, 80],
	"cornflowerblue": [100, 149, 237],
	"cornsilk": [255, 248, 220],
	"crimson": [220, 20, 60],
	"cyan": [0, 255, 255],
	"darkblue": [0, 0, 139],
	"darkcyan": [0, 139, 139],
	"darkgoldenrod": [184, 134, 11],
	"darkgray": [169, 169, 169],
	"darkgreen": [0, 100, 0],
	"darkgrey": [169, 169, 169],
	"darkkhaki": [189, 183, 107],
	"darkmagenta": [139, 0, 139],
	"darkolivegreen": [85, 107, 47],
	"darkorange": [255, 140, 0],
	"darkorchid": [153, 50, 204],
	"darkred": [139, 0, 0],
	"darksalmon": [233, 150, 122],
	"darkseagreen": [143, 188, 143],
	"darkslateblue": [72, 61, 139],
	"darkslategray": [47, 79, 79],
	"darkslategrey": [47, 79, 79],
	"darkturquoise": [0, 206, 209],
	"darkviolet": [148, 0, 211],
	"deeppink": [255, 20, 147],
	"deepskyblue": [0, 191, 255],
	"dimgray": [105, 105, 105],
	"dimgrey": [105, 105, 105],
	"dodgerblue": [30, 144, 255],
	"firebrick": [178, 34, 34],
	"floralwhite": [255, 250, 240],
	"forestgreen": [34, 139, 34],
	"fuchsia": [255, 0, 255],
	"gainsboro": [220, 220, 220],
	"ghostwhite": [248, 248, 255],
	"gold": [255, 215, 0],
	"goldenrod": [218, 165, 32],
	"gray": [128, 128, 128],
	"green": [0, 128, 0],
	"greenyellow": [173, 255, 47],
	"grey": [128, 128, 128],
	"honeydew": [240, 255, 240],
	"hotpink": [255, 105, 180],
	"indianred": [205, 92, 92],
	"indigo": [75, 0, 130],
	"ivory": [255, 255, 240],
	"khaki": [240, 230, 140],
	"lavender": [230, 230, 250],
	"lavenderblush": [255, 240, 245],
	"lawngreen": [124, 252, 0],
	"lemonchiffon": [255, 250, 205],
	"lightblue": [173, 216, 230],
	"lightcoral": [240, 128, 128],
	"lightcyan": [224, 255, 255],
	"lightgoldenrodyellow": [250, 250, 210],
	"lightgray": [211, 211, 211],
	"lightgreen": [144, 238, 144],
	"lightgrey": [211, 211, 211],
	"lightpink": [255, 182, 193],
	"lightsalmon": [255, 160, 122],
	"lightseagreen": [32, 178, 170],
	"lightskyblue": [135, 206, 250],
	"lightslategray": [119, 136, 153],
	"lightslategrey": [119, 136, 153],
	"lightsteelblue": [176, 196, 222],
	"lightyellow": [255, 255, 224],
	"lime": [0, 255, 0],
	"limegreen": [50, 205, 50],
	"linen": [250, 240, 230],
	"magenta": [255, 0, 255],
	"maroon": [128, 0, 0],
	"mediumaquamarine": [102, 205, 170],
	"mediumblue": [0, 0, 205],
	"mediumorchid": [186, 85, 211],
	"mediumpurple": [147, 112, 219],
	"mediumseagreen": [60, 179, 113],
	"mediumslateblue": [123, 104, 238],
	"mediumspringgreen": [0, 250, 154],
	"mediumturquoise": [72, 209, 204],
	"mediumvioletred": [199, 21, 133],
	"midnightblue": [25, 25, 112],
	"mintcream": [245, 255, 250],
	"mistyrose": [255, 228, 225],
	"moccasin": [255, 228, 181],
	"navajowhite": [255, 222, 173],
	"navy": [0, 0, 128],
	"oldlace": [253, 245, 230],
	"olive": [128, 128, 0],
	"olivedrab": [107, 142, 35],
	"orange": [255, 165, 0],
	"orangered": [255, 69, 0],
	"orchid": [218, 112, 214],
	"palegoldenrod": [238, 232, 170],
	"palegreen": [152, 251, 152],
	"paleturquoise": [175, 238, 238],
	"palevioletred": [219, 112, 147],
	"papayawhip": [255, 239, 213],
	"peachpuff": [255, 218, 185],
	"peru": [205, 133, 63],
	"pink": [255, 192, 203],
	"plum": [221, 160, 221],
	"powderblue": [176, 224, 230],
	"purple": [128, 0, 128],
	"rebeccapurple": [102, 51, 153],
	"red": [255, 0, 0],
	"rosybrown": [188, 143, 143],
	"royalblue": [65, 105, 225],
	"saddlebrown": [139, 69, 19],
	"salmon": [250, 128, 114],
	"sandybrown": [244, 164, 96],
	"seagreen": [46, 139, 87],
	"seashell": [255, 245, 238],
	"sienna": [160, 82, 45],
	"silver": [192, 192, 192],
	"skyblue": [135, 206, 235],
	"slateblue": [106, 90, 205],
	"slategray": [112, 128, 144],
	"slategrey": [112, 128, 144],
	"snow": [255, 250, 250],
	"springgreen": [0, 255, 127],
	"steelblue": [70, 130, 180],
	"tan": [210, 180, 140],
	"teal": [0, 128, 128],
	"thistle": [216, 191, 216],
	"tomato": [255, 99, 71],
	"turquoise": [64, 224, 208],
	"violet": [238, 130, 238],
	"wheat": [245, 222, 179],
	"white": [255, 255, 255],
	"whitesmoke": [245, 245, 245],
	"yellow": [255, 255, 0],
	"yellowgreen": [154, 205, 50]
};

var conversions = createCommonjsModule(function (module) {
/* MIT license */


// NOTE: conversions should only return primitive values (i.e. arrays, or
//       values that give correct `typeof` results).
//       do not use box values types (i.e. Number(), String(), etc.)

var reverseKeywords = {};
for (var key in colorName) {
	if (colorName.hasOwnProperty(key)) {
		reverseKeywords[colorName[key]] = key;
	}
}

var convert = module.exports = {
	rgb: {channels: 3, labels: 'rgb'},
	hsl: {channels: 3, labels: 'hsl'},
	hsv: {channels: 3, labels: 'hsv'},
	hwb: {channels: 3, labels: 'hwb'},
	cmyk: {channels: 4, labels: 'cmyk'},
	xyz: {channels: 3, labels: 'xyz'},
	lab: {channels: 3, labels: 'lab'},
	lch: {channels: 3, labels: 'lch'},
	hex: {channels: 1, labels: ['hex']},
	keyword: {channels: 1, labels: ['keyword']},
	ansi16: {channels: 1, labels: ['ansi16']},
	ansi256: {channels: 1, labels: ['ansi256']},
	hcg: {channels: 3, labels: ['h', 'c', 'g']},
	apple: {channels: 3, labels: ['r16', 'g16', 'b16']},
	gray: {channels: 1, labels: ['gray']}
};

// hide .channels and .labels properties
for (var model in convert) {
	if (convert.hasOwnProperty(model)) {
		if (!('channels' in convert[model])) {
			throw new Error('missing channels property: ' + model);
		}

		if (!('labels' in convert[model])) {
			throw new Error('missing channel labels property: ' + model);
		}

		if (convert[model].labels.length !== convert[model].channels) {
			throw new Error('channel and label counts mismatch: ' + model);
		}

		var channels = convert[model].channels;
		var labels = convert[model].labels;
		delete convert[model].channels;
		delete convert[model].labels;
		Object.defineProperty(convert[model], 'channels', {value: channels});
		Object.defineProperty(convert[model], 'labels', {value: labels});
	}
}

convert.rgb.hsl = function (rgb) {
	var r = rgb[0] / 255;
	var g = rgb[1] / 255;
	var b = rgb[2] / 255;
	var min = Math.min(r, g, b);
	var max = Math.max(r, g, b);
	var delta = max - min;
	var h;
	var s;
	var l;

	if (max === min) {
		h = 0;
	} else if (r === max) {
		h = (g - b) / delta;
	} else if (g === max) {
		h = 2 + (b - r) / delta;
	} else if (b === max) {
		h = 4 + (r - g) / delta;
	}

	h = Math.min(h * 60, 360);

	if (h < 0) {
		h += 360;
	}

	l = (min + max) / 2;

	if (max === min) {
		s = 0;
	} else if (l <= 0.5) {
		s = delta / (max + min);
	} else {
		s = delta / (2 - max - min);
	}

	return [h, s * 100, l * 100];
};

convert.rgb.hsv = function (rgb) {
	var rdif;
	var gdif;
	var bdif;
	var h;
	var s;

	var r = rgb[0] / 255;
	var g = rgb[1] / 255;
	var b = rgb[2] / 255;
	var v = Math.max(r, g, b);
	var diff = v - Math.min(r, g, b);
	var diffc = function (c) {
		return (v - c) / 6 / diff + 1 / 2;
	};

	if (diff === 0) {
		h = s = 0;
	} else {
		s = diff / v;
		rdif = diffc(r);
		gdif = diffc(g);
		bdif = diffc(b);

		if (r === v) {
			h = bdif - gdif;
		} else if (g === v) {
			h = (1 / 3) + rdif - bdif;
		} else if (b === v) {
			h = (2 / 3) + gdif - rdif;
		}
		if (h < 0) {
			h += 1;
		} else if (h > 1) {
			h -= 1;
		}
	}

	return [
		h * 360,
		s * 100,
		v * 100
	];
};

convert.rgb.hwb = function (rgb) {
	var r = rgb[0];
	var g = rgb[1];
	var b = rgb[2];
	var h = convert.rgb.hsl(rgb)[0];
	var w = 1 / 255 * Math.min(r, Math.min(g, b));

	b = 1 - 1 / 255 * Math.max(r, Math.max(g, b));

	return [h, w * 100, b * 100];
};

convert.rgb.cmyk = function (rgb) {
	var r = rgb[0] / 255;
	var g = rgb[1] / 255;
	var b = rgb[2] / 255;
	var c;
	var m;
	var y;
	var k;

	k = Math.min(1 - r, 1 - g, 1 - b);
	c = (1 - r - k) / (1 - k) || 0;
	m = (1 - g - k) / (1 - k) || 0;
	y = (1 - b - k) / (1 - k) || 0;

	return [c * 100, m * 100, y * 100, k * 100];
};

/**
 * See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance
 * */
function comparativeDistance(x, y) {
	return (
		Math.pow(x[0] - y[0], 2) +
		Math.pow(x[1] - y[1], 2) +
		Math.pow(x[2] - y[2], 2)
	);
}

convert.rgb.keyword = function (rgb) {
	var reversed = reverseKeywords[rgb];
	if (reversed) {
		return reversed;
	}

	var currentClosestDistance = Infinity;
	var currentClosestKeyword;

	for (var keyword in colorName) {
		if (colorName.hasOwnProperty(keyword)) {
			var value = colorName[keyword];

			// Compute comparative distance
			var distance = comparativeDistance(rgb, value);

			// Check if its less, if so set as closest
			if (distance < currentClosestDistance) {
				currentClosestDistance = distance;
				currentClosestKeyword = keyword;
			}
		}
	}

	return currentClosestKeyword;
};

convert.keyword.rgb = function (keyword) {
	return colorName[keyword];
};

convert.rgb.xyz = function (rgb) {
	var r = rgb[0] / 255;
	var g = rgb[1] / 255;
	var b = rgb[2] / 255;

	// assume sRGB
	r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);
	g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);
	b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);

	var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
	var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
	var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);

	return [x * 100, y * 100, z * 100];
};

convert.rgb.lab = function (rgb) {
	var xyz = convert.rgb.xyz(rgb);
	var x = xyz[0];
	var y = xyz[1];
	var z = xyz[2];
	var l;
	var a;
	var b;

	x /= 95.047;
	y /= 100;
	z /= 108.883;

	x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
	y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
	z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);

	l = (116 * y) - 16;
	a = 500 * (x - y);
	b = 200 * (y - z);

	return [l, a, b];
};

convert.hsl.rgb = function (hsl) {
	var h = hsl[0] / 360;
	var s = hsl[1] / 100;
	var l = hsl[2] / 100;
	var t1;
	var t2;
	var t3;
	var rgb;
	var val;

	if (s === 0) {
		val = l * 255;
		return [val, val, val];
	}

	if (l < 0.5) {
		t2 = l * (1 + s);
	} else {
		t2 = l + s - l * s;
	}

	t1 = 2 * l - t2;

	rgb = [0, 0, 0];
	for (var i = 0; i < 3; i++) {
		t3 = h + 1 / 3 * -(i - 1);
		if (t3 < 0) {
			t3++;
		}
		if (t3 > 1) {
			t3--;
		}

		if (6 * t3 < 1) {
			val = t1 + (t2 - t1) * 6 * t3;
		} else if (2 * t3 < 1) {
			val = t2;
		} else if (3 * t3 < 2) {
			val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
		} else {
			val = t1;
		}

		rgb[i] = val * 255;
	}

	return rgb;
};

convert.hsl.hsv = function (hsl) {
	var h = hsl[0];
	var s = hsl[1] / 100;
	var l = hsl[2] / 100;
	var smin = s;
	var lmin = Math.max(l, 0.01);
	var sv;
	var v;

	l *= 2;
	s *= (l <= 1) ? l : 2 - l;
	smin *= lmin <= 1 ? lmin : 2 - lmin;
	v = (l + s) / 2;
	sv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s);

	return [h, sv * 100, v * 100];
};

convert.hsv.rgb = function (hsv) {
	var h = hsv[0] / 60;
	var s = hsv[1] / 100;
	var v = hsv[2] / 100;
	var hi = Math.floor(h) % 6;

	var f = h - Math.floor(h);
	var p = 255 * v * (1 - s);
	var q = 255 * v * (1 - (s * f));
	var t = 255 * v * (1 - (s * (1 - f)));
	v *= 255;

	switch (hi) {
		case 0:
			return [v, t, p];
		case 1:
			return [q, v, p];
		case 2:
			return [p, v, t];
		case 3:
			return [p, q, v];
		case 4:
			return [t, p, v];
		case 5:
			return [v, p, q];
	}
};

convert.hsv.hsl = function (hsv) {
	var h = hsv[0];
	var s = hsv[1] / 100;
	var v = hsv[2] / 100;
	var vmin = Math.max(v, 0.01);
	var lmin;
	var sl;
	var l;

	l = (2 - s) * v;
	lmin = (2 - s) * vmin;
	sl = s * vmin;
	sl /= (lmin <= 1) ? lmin : 2 - lmin;
	sl = sl || 0;
	l /= 2;

	return [h, sl * 100, l * 100];
};

// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
convert.hwb.rgb = function (hwb) {
	var h = hwb[0] / 360;
	var wh = hwb[1] / 100;
	var bl = hwb[2] / 100;
	var ratio = wh + bl;
	var i;
	var v;
	var f;
	var n;

	// wh + bl cant be > 1
	if (ratio > 1) {
		wh /= ratio;
		bl /= ratio;
	}

	i = Math.floor(6 * h);
	v = 1 - bl;
	f = 6 * h - i;

	if ((i & 0x01) !== 0) {
		f = 1 - f;
	}

	n = wh + f * (v - wh); // linear interpolation

	var r;
	var g;
	var b;
	switch (i) {
		default:
		case 6:
		case 0: r = v; g = n; b = wh; break;
		case 1: r = n; g = v; b = wh; break;
		case 2: r = wh; g = v; b = n; break;
		case 3: r = wh; g = n; b = v; break;
		case 4: r = n; g = wh; b = v; break;
		case 5: r = v; g = wh; b = n; break;
	}

	return [r * 255, g * 255, b * 255];
};

convert.cmyk.rgb = function (cmyk) {
	var c = cmyk[0] / 100;
	var m = cmyk[1] / 100;
	var y = cmyk[2] / 100;
	var k = cmyk[3] / 100;
	var r;
	var g;
	var b;

	r = 1 - Math.min(1, c * (1 - k) + k);
	g = 1 - Math.min(1, m * (1 - k) + k);
	b = 1 - Math.min(1, y * (1 - k) + k);

	return [r * 255, g * 255, b * 255];
};

convert.xyz.rgb = function (xyz) {
	var x = xyz[0] / 100;
	var y = xyz[1] / 100;
	var z = xyz[2] / 100;
	var r;
	var g;
	var b;

	r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
	g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
	b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);

	// assume sRGB
	r = r > 0.0031308
		? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)
		: r * 12.92;

	g = g > 0.0031308
		? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)
		: g * 12.92;

	b = b > 0.0031308
		? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)
		: b * 12.92;

	r = Math.min(Math.max(0, r), 1);
	g = Math.min(Math.max(0, g), 1);
	b = Math.min(Math.max(0, b), 1);

	return [r * 255, g * 255, b * 255];
};

convert.xyz.lab = function (xyz) {
	var x = xyz[0];
	var y = xyz[1];
	var z = xyz[2];
	var l;
	var a;
	var b;

	x /= 95.047;
	y /= 100;
	z /= 108.883;

	x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
	y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
	z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);

	l = (116 * y) - 16;
	a = 500 * (x - y);
	b = 200 * (y - z);

	return [l, a, b];
};

convert.lab.xyz = function (lab) {
	var l = lab[0];
	var a = lab[1];
	var b = lab[2];
	var x;
	var y;
	var z;

	y = (l + 16) / 116;
	x = a / 500 + y;
	z = y - b / 200;

	var y2 = Math.pow(y, 3);
	var x2 = Math.pow(x, 3);
	var z2 = Math.pow(z, 3);
	y = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787;
	x = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787;
	z = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787;

	x *= 95.047;
	y *= 100;
	z *= 108.883;

	return [x, y, z];
};

convert.lab.lch = function (lab) {
	var l = lab[0];
	var a = lab[1];
	var b = lab[2];
	var hr;
	var h;
	var c;

	hr = Math.atan2(b, a);
	h = hr * 360 / 2 / Math.PI;

	if (h < 0) {
		h += 360;
	}

	c = Math.sqrt(a * a + b * b);

	return [l, c, h];
};

convert.lch.lab = function (lch) {
	var l = lch[0];
	var c = lch[1];
	var h = lch[2];
	var a;
	var b;
	var hr;

	hr = h / 360 * 2 * Math.PI;
	a = c * Math.cos(hr);
	b = c * Math.sin(hr);

	return [l, a, b];
};

convert.rgb.ansi16 = function (args) {
	var r = args[0];
	var g = args[1];
	var b = args[2];
	var value = 1 in arguments ? arguments[1] : convert.rgb.hsv(args)[2]; // hsv -> ansi16 optimization

	value = Math.round(value / 50);

	if (value === 0) {
		return 30;
	}

	var ansi = 30
		+ ((Math.round(b / 255) << 2)
		| (Math.round(g / 255) << 1)
		| Math.round(r / 255));

	if (value === 2) {
		ansi += 60;
	}

	return ansi;
};

convert.hsv.ansi16 = function (args) {
	// optimization here; we already know the value and don't need to get
	// it converted for us.
	return convert.rgb.ansi16(convert.hsv.rgb(args), args[2]);
};

convert.rgb.ansi256 = function (args) {
	var r = args[0];
	var g = args[1];
	var b = args[2];

	// we use the extended greyscale palette here, with the exception of
	// black and white. normal palette only has 4 greyscale shades.
	if (r === g && g === b) {
		if (r < 8) {
			return 16;
		}

		if (r > 248) {
			return 231;
		}

		return Math.round(((r - 8) / 247) * 24) + 232;
	}

	var ansi = 16
		+ (36 * Math.round(r / 255 * 5))
		+ (6 * Math.round(g / 255 * 5))
		+ Math.round(b / 255 * 5);

	return ansi;
};

convert.ansi16.rgb = function (args) {
	var color = args % 10;

	// handle greyscale
	if (color === 0 || color === 7) {
		if (args > 50) {
			color += 3.5;
		}

		color = color / 10.5 * 255;

		return [color, color, color];
	}

	var mult = (~~(args > 50) + 1) * 0.5;
	var r = ((color & 1) * mult) * 255;
	var g = (((color >> 1) & 1) * mult) * 255;
	var b = (((color >> 2) & 1) * mult) * 255;

	return [r, g, b];
};

convert.ansi256.rgb = function (args) {
	// handle greyscale
	if (args >= 232) {
		var c = (args - 232) * 10 + 8;
		return [c, c, c];
	}

	args -= 16;

	var rem;
	var r = Math.floor(args / 36) / 5 * 255;
	var g = Math.floor((rem = args % 36) / 6) / 5 * 255;
	var b = (rem % 6) / 5 * 255;

	return [r, g, b];
};

convert.rgb.hex = function (args) {
	var integer = ((Math.round(args[0]) & 0xFF) << 16)
		+ ((Math.round(args[1]) & 0xFF) << 8)
		+ (Math.round(args[2]) & 0xFF);

	var string = integer.toString(16).toUpperCase();
	return '000000'.substring(string.length) + string;
};

convert.hex.rgb = function (args) {
	var match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);
	if (!match) {
		return [0, 0, 0];
	}

	var colorString = match[0];

	if (match[0].length === 3) {
		colorString = colorString.split('').map(function (char) {
			return char + char;
		}).join('');
	}

	var integer = parseInt(colorString, 16);
	var r = (integer >> 16) & 0xFF;
	var g = (integer >> 8) & 0xFF;
	var b = integer & 0xFF;

	return [r, g, b];
};

convert.rgb.hcg = function (rgb) {
	var r = rgb[0] / 255;
	var g = rgb[1] / 255;
	var b = rgb[2] / 255;
	var max = Math.max(Math.max(r, g), b);
	var min = Math.min(Math.min(r, g), b);
	var chroma = (max - min);
	var grayscale;
	var hue;

	if (chroma < 1) {
		grayscale = min / (1 - chroma);
	} else {
		grayscale = 0;
	}

	if (chroma <= 0) {
		hue = 0;
	} else
	if (max === r) {
		hue = ((g - b) / chroma) % 6;
	} else
	if (max === g) {
		hue = 2 + (b - r) / chroma;
	} else {
		hue = 4 + (r - g) / chroma + 4;
	}

	hue /= 6;
	hue %= 1;

	return [hue * 360, chroma * 100, grayscale * 100];
};

convert.hsl.hcg = function (hsl) {
	var s = hsl[1] / 100;
	var l = hsl[2] / 100;
	var c = 1;
	var f = 0;

	if (l < 0.5) {
		c = 2.0 * s * l;
	} else {
		c = 2.0 * s * (1.0 - l);
	}

	if (c < 1.0) {
		f = (l - 0.5 * c) / (1.0 - c);
	}

	return [hsl[0], c * 100, f * 100];
};

convert.hsv.hcg = function (hsv) {
	var s = hsv[1] / 100;
	var v = hsv[2] / 100;

	var c = s * v;
	var f = 0;

	if (c < 1.0) {
		f = (v - c) / (1 - c);
	}

	return [hsv[0], c * 100, f * 100];
};

convert.hcg.rgb = function (hcg) {
	var h = hcg[0] / 360;
	var c = hcg[1] / 100;
	var g = hcg[2] / 100;

	if (c === 0.0) {
		return [g * 255, g * 255, g * 255];
	}

	var pure = [0, 0, 0];
	var hi = (h % 1) * 6;
	var v = hi % 1;
	var w = 1 - v;
	var mg = 0;

	switch (Math.floor(hi)) {
		case 0:
			pure[0] = 1; pure[1] = v; pure[2] = 0; break;
		case 1:
			pure[0] = w; pure[1] = 1; pure[2] = 0; break;
		case 2:
			pure[0] = 0; pure[1] = 1; pure[2] = v; break;
		case 3:
			pure[0] = 0; pure[1] = w; pure[2] = 1; break;
		case 4:
			pure[0] = v; pure[1] = 0; pure[2] = 1; break;
		default:
			pure[0] = 1; pure[1] = 0; pure[2] = w;
	}

	mg = (1.0 - c) * g;

	return [
		(c * pure[0] + mg) * 255,
		(c * pure[1] + mg) * 255,
		(c * pure[2] + mg) * 255
	];
};

convert.hcg.hsv = function (hcg) {
	var c = hcg[1] / 100;
	var g = hcg[2] / 100;

	var v = c + g * (1.0 - c);
	var f = 0;

	if (v > 0.0) {
		f = c / v;
	}

	return [hcg[0], f * 100, v * 100];
};

convert.hcg.hsl = function (hcg) {
	var c = hcg[1] / 100;
	var g = hcg[2] / 100;

	var l = g * (1.0 - c) + 0.5 * c;
	var s = 0;

	if (l > 0.0 && l < 0.5) {
		s = c / (2 * l);
	} else
	if (l >= 0.5 && l < 1.0) {
		s = c / (2 * (1 - l));
	}

	return [hcg[0], s * 100, l * 100];
};

convert.hcg.hwb = function (hcg) {
	var c = hcg[1] / 100;
	var g = hcg[2] / 100;
	var v = c + g * (1.0 - c);
	return [hcg[0], (v - c) * 100, (1 - v) * 100];
};

convert.hwb.hcg = function (hwb) {
	var w = hwb[1] / 100;
	var b = hwb[2] / 100;
	var v = 1 - b;
	var c = v - w;
	var g = 0;

	if (c < 1) {
		g = (v - c) / (1 - c);
	}

	return [hwb[0], c * 100, g * 100];
};

convert.apple.rgb = function (apple) {
	return [(apple[0] / 65535) * 255, (apple[1] / 65535) * 255, (apple[2] / 65535) * 255];
};

convert.rgb.apple = function (rgb) {
	return [(rgb[0] / 255) * 65535, (rgb[1] / 255) * 65535, (rgb[2] / 255) * 65535];
};

convert.gray.rgb = function (args) {
	return [args[0] / 100 * 255, args[0] / 100 * 255, args[0] / 100 * 255];
};

convert.gray.hsl = convert.gray.hsv = function (args) {
	return [0, 0, args[0]];
};

convert.gray.hwb = function (gray) {
	return [0, 100, gray[0]];
};

convert.gray.cmyk = function (gray) {
	return [0, 0, 0, gray[0]];
};

convert.gray.lab = function (gray) {
	return [gray[0], 0, 0];
};

convert.gray.hex = function (gray) {
	var val = Math.round(gray[0] / 100 * 255) & 0xFF;
	var integer = (val << 16) + (val << 8) + val;

	var string = integer.toString(16).toUpperCase();
	return '000000'.substring(string.length) + string;
};

convert.rgb.gray = function (rgb) {
	var val = (rgb[0] + rgb[1] + rgb[2]) / 3;
	return [val / 255 * 100];
};
});
var conversions_1 = conversions.rgb;
var conversions_2 = conversions.hsl;
var conversions_3 = conversions.hsv;
var conversions_4 = conversions.hwb;
var conversions_5 = conversions.cmyk;
var conversions_6 = conversions.xyz;
var conversions_7 = conversions.lab;
var conversions_8 = conversions.lch;
var conversions_9 = conversions.hex;
var conversions_10 = conversions.keyword;
var conversions_11 = conversions.ansi16;
var conversions_12 = conversions.ansi256;
var conversions_13 = conversions.hcg;
var conversions_14 = conversions.apple;
var conversions_15 = conversions.gray;

/*
	this function routes a model to all other models.

	all functions that are routed have a property `.conversion` attached
	to the returned synthetic function. This property is an array
	of strings, each with the steps in between the 'from' and 'to'
	color models (inclusive).

	conversions that are not possible simply are not included.
*/

function buildGraph() {
	var graph = {};
	// https://jsperf.com/object-keys-vs-for-in-with-closure/3
	var models = Object.keys(conversions);

	for (var len = models.length, i = 0; i < len; i++) {
		graph[models[i]] = {
			// http://jsperf.com/1-vs-infinity
			// micro-opt, but this is simple.
			distance: -1,
			parent: null
		};
	}

	return graph;
}

// https://en.wikipedia.org/wiki/Breadth-first_search
function deriveBFS(fromModel) {
	var graph = buildGraph();
	var queue = [fromModel]; // unshift -> queue -> pop

	graph[fromModel].distance = 0;

	while (queue.length) {
		var current = queue.pop();
		var adjacents = Object.keys(conversions[current]);

		for (var len = adjacents.length, i = 0; i < len; i++) {
			var adjacent = adjacents[i];
			var node = graph[adjacent];

			if (node.distance === -1) {
				node.distance = graph[current].distance + 1;
				node.parent = current;
				queue.unshift(adjacent);
			}
		}
	}

	return graph;
}

function link(from, to) {
	return function (args) {
		return to(from(args));
	};
}

function wrapConversion(toModel, graph) {
	var path$$1 = [graph[toModel].parent, toModel];
	var fn = conversions[graph[toModel].parent][toModel];

	var cur = graph[toModel].parent;
	while (graph[cur].parent) {
		path$$1.unshift(graph[cur].parent);
		fn = link(conversions[graph[cur].parent][cur], fn);
		cur = graph[cur].parent;
	}

	fn.conversion = path$$1;
	return fn;
}

var route = function (fromModel) {
	var graph = deriveBFS(fromModel);
	var conversion = {};

	var models = Object.keys(graph);
	for (var len = models.length, i = 0; i < len; i++) {
		var toModel = models[i];
		var node = graph[toModel];

		if (node.parent === null) {
			// no possible conversion, or this node is the source model.
			continue;
		}

		conversion[toModel] = wrapConversion(toModel, graph);
	}

	return conversion;
};

var convert = {};

var models = Object.keys(conversions);

function wrapRaw(fn) {
	var wrappedFn = function (args) {
		if (args === undefined || args === null) {
			return args;
		}

		if (arguments.length > 1) {
			args = Array.prototype.slice.call(arguments);
		}

		return fn(args);
	};

	// preserve .conversion property if there is one
	if ('conversion' in fn) {
		wrappedFn.conversion = fn.conversion;
	}

	return wrappedFn;
}

function wrapRounded(fn) {
	var wrappedFn = function (args) {
		if (args === undefined || args === null) {
			return args;
		}

		if (arguments.length > 1) {
			args = Array.prototype.slice.call(arguments);
		}

		var result = fn(args);

		// we're assuming the result is an array here.
		// see notice in conversions.js; don't use box types
		// in conversion functions.
		if (typeof result === 'object') {
			for (var len = result.length, i = 0; i < len; i++) {
				result[i] = Math.round(result[i]);
			}
		}

		return result;
	};

	// preserve .conversion property if there is one
	if ('conversion' in fn) {
		wrappedFn.conversion = fn.conversion;
	}

	return wrappedFn;
}

models.forEach(function (fromModel) {
	convert[fromModel] = {};

	Object.defineProperty(convert[fromModel], 'channels', {value: conversions[fromModel].channels});
	Object.defineProperty(convert[fromModel], 'labels', {value: conversions[fromModel].labels});

	var routes = route(fromModel);
	var routeModels = Object.keys(routes);

	routeModels.forEach(function (toModel) {
		var fn = routes[toModel];

		convert[fromModel][toModel] = wrapRounded(fn);
		convert[fromModel][toModel].raw = wrapRaw(fn);
	});
});

var colorConvert = convert;

var ansiStyles = createCommonjsModule(function (module) {


const wrapAnsi16 = (fn, offset) => function () {
	const code = fn.apply(colorConvert, arguments);
	return `\u001B[${code + offset}m`;
};

const wrapAnsi256 = (fn, offset) => function () {
	const code = fn.apply(colorConvert, arguments);
	return `\u001B[${38 + offset};5;${code}m`;
};

const wrapAnsi16m = (fn, offset) => function () {
	const rgb = fn.apply(colorConvert, arguments);
	return `\u001B[${38 + offset};2;${rgb[0]};${rgb[1]};${rgb[2]}m`;
};

function assembleStyles() {
	const codes = new Map();
	const styles = {
		modifier: {
			reset: [0, 0],
			// 21 isn't widely supported and 22 does the same thing
			bold: [1, 22],
			dim: [2, 22],
			italic: [3, 23],
			underline: [4, 24],
			inverse: [7, 27],
			hidden: [8, 28],
			strikethrough: [9, 29]
		},
		color: {
			black: [30, 39],
			red: [31, 39],
			green: [32, 39],
			yellow: [33, 39],
			blue: [34, 39],
			magenta: [35, 39],
			cyan: [36, 39],
			white: [37, 39],
			gray: [90, 39],

			// Bright color
			redBright: [91, 39],
			greenBright: [92, 39],
			yellowBright: [93, 39],
			blueBright: [94, 39],
			magentaBright: [95, 39],
			cyanBright: [96, 39],
			whiteBright: [97, 39]
		},
		bgColor: {
			bgBlack: [40, 49],
			bgRed: [41, 49],
			bgGreen: [42, 49],
			bgYellow: [43, 49],
			bgBlue: [44, 49],
			bgMagenta: [45, 49],
			bgCyan: [46, 49],
			bgWhite: [47, 49],

			// Bright color
			bgBlackBright: [100, 49],
			bgRedBright: [101, 49],
			bgGreenBright: [102, 49],
			bgYellowBright: [103, 49],
			bgBlueBright: [104, 49],
			bgMagentaBright: [105, 49],
			bgCyanBright: [106, 49],
			bgWhiteBright: [107, 49]
		}
	};

	// Fix humans
	styles.color.grey = styles.color.gray;

	for (const groupName of Object.keys(styles)) {
		const group = styles[groupName];

		for (const styleName of Object.keys(group)) {
			const style = group[styleName];

			styles[styleName] = {
				open: `\u001B[${style[0]}m`,
				close: `\u001B[${style[1]}m`
			};

			group[styleName] = styles[styleName];

			codes.set(style[0], style[1]);
		}

		Object.defineProperty(styles, groupName, {
			value: group,
			enumerable: false
		});

		Object.defineProperty(styles, 'codes', {
			value: codes,
			enumerable: false
		});
	}

	const ansi2ansi = n => n;
	const rgb2rgb = (r, g, b) => [r, g, b];

	styles.color.close = '\u001B[39m';
	styles.bgColor.close = '\u001B[49m';

	styles.color.ansi = {
		ansi: wrapAnsi16(ansi2ansi, 0)
	};
	styles.color.ansi256 = {
		ansi256: wrapAnsi256(ansi2ansi, 0)
	};
	styles.color.ansi16m = {
		rgb: wrapAnsi16m(rgb2rgb, 0)
	};

	styles.bgColor.ansi = {
		ansi: wrapAnsi16(ansi2ansi, 10)
	};
	styles.bgColor.ansi256 = {
		ansi256: wrapAnsi256(ansi2ansi, 10)
	};
	styles.bgColor.ansi16m = {
		rgb: wrapAnsi16m(rgb2rgb, 10)
	};

	for (let key of Object.keys(colorConvert)) {
		if (typeof colorConvert[key] !== 'object') {
			continue;
		}

		const suite = colorConvert[key];

		if (key === 'ansi16') {
			key = 'ansi';
		}

		if ('ansi16' in suite) {
			styles.color.ansi[key] = wrapAnsi16(suite.ansi16, 0);
			styles.bgColor.ansi[key] = wrapAnsi16(suite.ansi16, 10);
		}

		if ('ansi256' in suite) {
			styles.color.ansi256[key] = wrapAnsi256(suite.ansi256, 0);
			styles.bgColor.ansi256[key] = wrapAnsi256(suite.ansi256, 10);
		}

		if ('rgb' in suite) {
			styles.color.ansi16m[key] = wrapAnsi16m(suite.rgb, 0);
			styles.bgColor.ansi16m[key] = wrapAnsi16m(suite.rgb, 10);
		}
	}

	return styles;
}

// Make the export immutable
Object.defineProperty(module, 'exports', {
	enumerable: true,
	get: assembleStyles
});
});

const TEMPLATE_REGEX = /(?:\\(u[a-f\d]{4}|x[a-f\d]{2}|.))|(?:\{(~)?(\w+(?:\([^)]*\))?(?:\.\w+(?:\([^)]*\))?)*)(?:[ \t]|(?=\r?\n)))|(\})|((?:.|[\r\n\f])+?)/gi;
const STYLE_REGEX = /(?:^|\.)(\w+)(?:\(([^)]*)\))?/g;
const STRING_REGEX = /^(['"])((?:\\.|(?!\1)[^\\])*)\1$/;
const ESCAPE_REGEX = /\\(u[a-f\d]{4}|x[a-f\d]{2}|.)|([^\\])/gi;

const ESCAPES = new Map([
	['n', '\n'],
	['r', '\r'],
	['t', '\t'],
	['b', '\b'],
	['f', '\f'],
	['v', '\v'],
	['0', '\0'],
	['\\', '\\'],
	['e', '\u001B'],
	['a', '\u0007']
]);

function unescape(c) {
	if ((c[0] === 'u' && c.length === 5) || (c[0] === 'x' && c.length === 3)) {
		return String.fromCharCode(parseInt(c.slice(1), 16));
	}

	return ESCAPES.get(c) || c;
}

function parseArguments(name, args) {
	const results = [];
	const chunks = args.trim().split(/\s*,\s*/g);
	let matches;

	for (const chunk of chunks) {
		if (!isNaN(chunk)) {
			results.push(Number(chunk));
		} else if ((matches = chunk.match(STRING_REGEX))) {
			results.push(matches[2].replace(ESCAPE_REGEX, (m, escape, chr) => escape ? unescape(escape) : chr));
		} else {
			throw new Error(`Invalid Chalk template style argument: ${chunk} (in style '${name}')`);
		}
	}

	return results;
}

function parseStyle(style) {
	STYLE_REGEX.lastIndex = 0;

	const results = [];
	let matches;

	while ((matches = STYLE_REGEX.exec(style)) !== null) {
		const name = matches[1];

		if (matches[2]) {
			const args = parseArguments(name, matches[2]);
			results.push([name].concat(args));
		} else {
			results.push([name]);
		}
	}

	return results;
}

function buildStyle(chalk, styles) {
	const enabled = {};

	for (const layer of styles) {
		for (const style of layer.styles) {
			enabled[style[0]] = layer.inverse ? null : style.slice(1);
		}
	}

	let current = chalk;
	for (const styleName of Object.keys(enabled)) {
		if (Array.isArray(enabled[styleName])) {
			if (!(styleName in current)) {
				throw new Error(`Unknown Chalk style: ${styleName}`);
			}

			if (enabled[styleName].length > 0) {
				current = current[styleName].apply(current, enabled[styleName]);
			} else {
				current = current[styleName];
			}
		}
	}

	return current;
}

var templates = (chalk, tmp) => {
	const styles = [];
	const chunks = [];
	let chunk = [];

	// eslint-disable-next-line max-params
	tmp.replace(TEMPLATE_REGEX, (m, escapeChar, inverse, style, close, chr) => {
		if (escapeChar) {
			chunk.push(unescape(escapeChar));
		} else if (style) {
			const str = chunk.join('');
			chunk = [];
			chunks.push(styles.length === 0 ? str : buildStyle(chalk, styles)(str));
			styles.push({inverse, styles: parseStyle(style)});
		} else if (close) {
			if (styles.length === 0) {
				throw new Error('Found extraneous } in Chalk template literal');
			}

			chunks.push(buildStyle(chalk, styles)(chunk.join('')));
			chunk = [];
			styles.pop();
		} else {
			chunk.push(chr);
		}
	});

	chunks.push(chunk.join(''));

	if (styles.length > 0) {
		const errMsg = `Chalk template literal is missing ${styles.length} closing bracket${styles.length === 1 ? '' : 's'} (\`}\`)`;
		throw new Error(errMsg);
	}

	return chunks.join('');
};

var chalk = createCommonjsModule(function (module) {


const stdoutColor = supportsColor_1.stdout;



const isSimpleWindowsTerm = process.platform === 'win32' && !(process.env.TERM || '').toLowerCase().startsWith('xterm');

// `supportsColor.level` → `ansiStyles.color[name]` mapping
const levelMapping = ['ansi', 'ansi', 'ansi256', 'ansi16m'];

// `color-convert` models to exclude from the Chalk API due to conflicts and such
const skipModels = new Set(['gray']);

const styles = Object.create(null);

function applyOptions(obj, options) {
	options = options || {};

	// Detect level if not set manually
	const scLevel = stdoutColor ? stdoutColor.level : 0;
	obj.level = options.level === undefined ? scLevel : options.level;
	obj.enabled = 'enabled' in options ? options.enabled : obj.level > 0;
}

function Chalk(options) {
	// We check for this.template here since calling `chalk.constructor()`
	// by itself will have a `this` of a previously constructed chalk object
	if (!this || !(this instanceof Chalk) || this.template) {
		const chalk = {};
		applyOptions(chalk, options);

		chalk.template = function () {
			const args = [].slice.call(arguments);
			return chalkTag.apply(null, [chalk.template].concat(args));
		};

		Object.setPrototypeOf(chalk, Chalk.prototype);
		Object.setPrototypeOf(chalk.template, chalk);

		chalk.template.constructor = Chalk;

		return chalk.template;
	}

	applyOptions(this, options);
}

// Use bright blue on Windows as the normal blue color is illegible
if (isSimpleWindowsTerm) {
	ansiStyles.blue.open = '\u001B[94m';
}

for (const key of Object.keys(ansiStyles)) {
	ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');

	styles[key] = {
		get() {
			const codes = ansiStyles[key];
			return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, key);
		}
	};
}

styles.visible = {
	get() {
		return build.call(this, this._styles || [], true, 'visible');
	}
};

ansiStyles.color.closeRe = new RegExp(escapeStringRegexp(ansiStyles.color.close), 'g');
for (const model of Object.keys(ansiStyles.color.ansi)) {
	if (skipModels.has(model)) {
		continue;
	}

	styles[model] = {
		get() {
			const level = this.level;
			return function () {
				const open = ansiStyles.color[levelMapping[level]][model].apply(null, arguments);
				const codes = {
					open,
					close: ansiStyles.color.close,
					closeRe: ansiStyles.color.closeRe
				};
				return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, model);
			};
		}
	};
}

ansiStyles.bgColor.closeRe = new RegExp(escapeStringRegexp(ansiStyles.bgColor.close), 'g');
for (const model of Object.keys(ansiStyles.bgColor.ansi)) {
	if (skipModels.has(model)) {
		continue;
	}

	const bgModel = 'bg' + model[0].toUpperCase() + model.slice(1);
	styles[bgModel] = {
		get() {
			const level = this.level;
			return function () {
				const open = ansiStyles.bgColor[levelMapping[level]][model].apply(null, arguments);
				const codes = {
					open,
					close: ansiStyles.bgColor.close,
					closeRe: ansiStyles.bgColor.closeRe
				};
				return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, model);
			};
		}
	};
}

const proto = Object.defineProperties(() => {}, styles);

function build(_styles, _empty, key) {
	const builder = function () {
		return applyStyle.apply(builder, arguments);
	};

	builder._styles = _styles;
	builder._empty = _empty;

	const self = this;

	Object.defineProperty(builder, 'level', {
		enumerable: true,
		get() {
			return self.level;
		},
		set(level) {
			self.level = level;
		}
	});

	Object.defineProperty(builder, 'enabled', {
		enumerable: true,
		get() {
			return self.enabled;
		},
		set(enabled) {
			self.enabled = enabled;
		}
	});

	// See below for fix regarding invisible grey/dim combination on Windows
	builder.hasGrey = this.hasGrey || key === 'gray' || key === 'grey';

	// `__proto__` is used because we must return a function, but there is
	// no way to create a function with a different prototype
	builder.__proto__ = proto; // eslint-disable-line no-proto

	return builder;
}

function applyStyle() {
	// Support varags, but simply cast to string in case there's only one arg
	const args = arguments;
	const argsLen = args.length;
	let str = String(arguments[0]);

	if (argsLen === 0) {
		return '';
	}

	if (argsLen > 1) {
		// Don't slice `arguments`, it prevents V8 optimizations
		for (let a = 1; a < argsLen; a++) {
			str += ' ' + args[a];
		}
	}

	if (!this.enabled || this.level <= 0 || !str) {
		return this._empty ? '' : str;
	}

	// Turns out that on Windows dimmed gray text becomes invisible in cmd.exe,
	// see https://github.com/chalk/chalk/issues/58
	// If we're on Windows and we're dealing with a gray color, temporarily make 'dim' a noop.
	const originalDim = ansiStyles.dim.open;
	if (isSimpleWindowsTerm && this.hasGrey) {
		ansiStyles.dim.open = '';
	}

	for (const code of this._styles.slice().reverse()) {
		// Replace any instances already present with a re-opening code
		// otherwise only the part of the string until said closing code
		// will be colored, and the rest will simply be 'plain'.
		str = code.open + str.replace(code.closeRe, code.open) + code.close;

		// Close the styling before a linebreak and reopen
		// after next line to fix a bleed issue on macOS
		// https://github.com/chalk/chalk/pull/92
		str = str.replace(/\r?\n/g, `${code.close}$&${code.open}`);
	}

	// Reset the original `dim` if we changed it to work around the Windows dimmed gray issue
	ansiStyles.dim.open = originalDim;

	return str;
}

function chalkTag(chalk, strings) {
	if (!Array.isArray(strings)) {
		// If chalk() was called by itself or with a string,
		// return the string itself as a string.
		return [].slice.call(arguments, 1).join(' ');
	}

	const args = [].slice.call(arguments, 2);
	const parts = [strings.raw[0]];

	for (let i = 1; i < strings.length; i++) {
		parts.push(String(args[i - 1]).replace(/[{}\\]/g, '\\$&'));
		parts.push(String(strings.raw[i]));
	}

	return templates(chalk, parts.join(''));
}

Object.defineProperties(Chalk.prototype, styles);

module.exports = Chalk(); // eslint-disable-line new-cap
module.exports.supportsColor = stdoutColor;
module.exports.default = module.exports; // For TypeScript
});
var chalk_1 = chalk.supportsColor;

var mimicFn = (to, from) => {
	// TODO: use `Reflect.ownKeys()` when targeting Node.js 6
	for (const prop of Object.getOwnPropertyNames(from).concat(Object.getOwnPropertySymbols(from))) {
		Object.defineProperty(to, prop, Object.getOwnPropertyDescriptor(from, prop));
	}

	return to;
};

var onetime = (fn, opts) => {
	// TODO: Remove this in v3
	if (opts === true) {
		throw new TypeError('The second argument is now an options object');
	}

	if (typeof fn !== 'function') {
		throw new TypeError('Expected a function');
	}

	opts = opts || {};

	let ret;
	let called = false;
	const fnName = fn.displayName || fn.name || '<anonymous>';

	const onetime = function () {
		if (called) {
			if (opts.throw === true) {
				throw new Error(`Function \`${fnName}\` can only be called once`);
			}

			return ret;
		}

		called = true;
		ret = fn.apply(this, arguments);
		fn = null;

		return ret;
	};

	mimicFn(onetime, fn);

	return onetime;
};

var restoreCursor = onetime(() => {
	signalExit(() => {
		process.stderr.write('\u001b[?25h');
	}, {alwaysLast: true});
});

var cliCursor = createCommonjsModule(function (module, exports) {


let hidden = false;

exports.show = stream$$1 => {
	const s = stream$$1 || process.stderr;

	if (!s.isTTY) {
		return;
	}

	hidden = false;
	s.write('\u001b[?25h');
};

exports.hide = stream$$1 => {
	const s = stream$$1 || process.stderr;

	if (!s.isTTY) {
		return;
	}

	restoreCursor();
	hidden = true;
	s.write('\u001b[?25l');
};

exports.toggle = (force, stream$$1) => {
	if (force !== undefined) {
		hidden = force;
	}

	if (hidden) {
		exports.show(stream$$1);
	} else {
		exports.hide(stream$$1);
	}
};
});
var cliCursor_1 = cliCursor.show;
var cliCursor_2 = cliCursor.hide;
var cliCursor_3 = cliCursor.toggle;

var dots = {
	interval: 80,
	frames: [
		"⠋",
		"⠙",
		"⠹",
		"⠸",
		"⠼",
		"⠴",
		"⠦",
		"⠧",
		"⠇",
		"⠏"
	]
};
var dots2 = {
	interval: 80,
	frames: [
		"⣾",
		"⣽",
		"⣻",
		"⢿",
		"⡿",
		"⣟",
		"⣯",
		"⣷"
	]
};
var dots3 = {
	interval: 80,
	frames: [
		"⠋",
		"⠙",
		"⠚",
		"⠞",
		"⠖",
		"⠦",
		"⠴",
		"⠲",
		"⠳",
		"⠓"
	]
};
var dots4 = {
	interval: 80,
	frames: [
		"⠄",
		"⠆",
		"⠇",
		"⠋",
		"⠙",
		"⠸",
		"⠰",
		"⠠",
		"⠰",
		"⠸",
		"⠙",
		"⠋",
		"⠇",
		"⠆"
	]
};
var dots5 = {
	interval: 80,
	frames: [
		"⠋",
		"⠙",
		"⠚",
		"⠒",
		"⠂",
		"⠂",
		"⠒",
		"⠲",
		"⠴",
		"⠦",
		"⠖",
		"⠒",
		"⠐",
		"⠐",
		"⠒",
		"⠓",
		"⠋"
	]
};
var dots6 = {
	interval: 80,
	frames: [
		"⠁",
		"⠉",
		"⠙",
		"⠚",
		"⠒",
		"⠂",
		"⠂",
		"⠒",
		"⠲",
		"⠴",
		"⠤",
		"⠄",
		"⠄",
		"⠤",
		"⠴",
		"⠲",
		"⠒",
		"⠂",
		"⠂",
		"⠒",
		"⠚",
		"⠙",
		"⠉",
		"⠁"
	]
};
var dots7 = {
	interval: 80,
	frames: [
		"⠈",
		"⠉",
		"⠋",
		"⠓",
		"⠒",
		"⠐",
		"⠐",
		"⠒",
		"⠖",
		"⠦",
		"⠤",
		"⠠",
		"⠠",
		"⠤",
		"⠦",
		"⠖",
		"⠒",
		"⠐",
		"⠐",
		"⠒",
		"⠓",
		"⠋",
		"⠉",
		"⠈"
	]
};
var dots8 = {
	interval: 80,
	frames: [
		"⠁",
		"⠁",
		"⠉",
		"⠙",
		"⠚",
		"⠒",
		"⠂",
		"⠂",
		"⠒",
		"⠲",
		"⠴",
		"⠤",
		"⠄",
		"⠄",
		"⠤",
		"⠠",
		"⠠",
		"⠤",
		"⠦",
		"⠖",
		"⠒",
		"⠐",
		"⠐",
		"⠒",
		"⠓",
		"⠋",
		"⠉",
		"⠈",
		"⠈"
	]
};
var dots9 = {
	interval: 80,
	frames: [
		"⢹",
		"⢺",
		"⢼",
		"⣸",
		"⣇",
		"⡧",
		"⡗",
		"⡏"
	]
};
var dots10 = {
	interval: 80,
	frames: [
		"⢄",
		"⢂",
		"⢁",
		"⡁",
		"⡈",
		"⡐",
		"⡠"
	]
};
var dots11 = {
	interval: 100,
	frames: [
		"⠁",
		"⠂",
		"⠄",
		"⡀",
		"⢀",
		"⠠",
		"⠐",
		"⠈"
	]
};
var dots12 = {
	interval: 80,
	frames: [
		"⢀⠀",
		"⡀⠀",
		"⠄⠀",
		"⢂⠀",
		"⡂⠀",
		"⠅⠀",
		"⢃⠀",
		"⡃⠀",
		"⠍⠀",
		"⢋⠀",
		"⡋⠀",
		"⠍⠁",
		"⢋⠁",
		"⡋⠁",
		"⠍⠉",
		"⠋⠉",
		"⠋⠉",
		"⠉⠙",
		"⠉⠙",
		"⠉⠩",
		"⠈⢙",
		"⠈⡙",
		"⢈⠩",
		"⡀⢙",
		"⠄⡙",
		"⢂⠩",
		"⡂⢘",
		"⠅⡘",
		"⢃⠨",
		"⡃⢐",
		"⠍⡐",
		"⢋⠠",
		"⡋⢀",
		"⠍⡁",
		"⢋⠁",
		"⡋⠁",
		"⠍⠉",
		"⠋⠉",
		"⠋⠉",
		"⠉⠙",
		"⠉⠙",
		"⠉⠩",
		"⠈⢙",
		"⠈⡙",
		"⠈⠩",
		"⠀⢙",
		"⠀⡙",
		"⠀⠩",
		"⠀⢘",
		"⠀⡘",
		"⠀⠨",
		"⠀⢐",
		"⠀⡐",
		"⠀⠠",
		"⠀⢀",
		"⠀⡀"
	]
};
var line = {
	interval: 130,
	frames: [
		"-",
		"\\",
		"|",
		"/"
	]
};
var line2 = {
	interval: 100,
	frames: [
		"⠂",
		"-",
		"–",
		"—",
		"–",
		"-"
	]
};
var pipe$3 = {
	interval: 100,
	frames: [
		"┤",
		"┘",
		"┴",
		"└",
		"├",
		"┌",
		"┬",
		"┐"
	]
};
var simpleDots = {
	interval: 400,
	frames: [
		".  ",
		".. ",
		"...",
		"   "
	]
};
var simpleDotsScrolling = {
	interval: 200,
	frames: [
		".  ",
		".. ",
		"...",
		" ..",
		"  .",
		"   "
	]
};
var star = {
	interval: 70,
	frames: [
		"✶",
		"✸",
		"✹",
		"✺",
		"✹",
		"✷"
	]
};
var star2 = {
	interval: 80,
	frames: [
		"+",
		"x",
		"*"
	]
};
var flip = {
	interval: 70,
	frames: [
		"_",
		"_",
		"_",
		"-",
		"`",
		"`",
		"'",
		"´",
		"-",
		"_",
		"_",
		"_"
	]
};
var hamburger = {
	interval: 100,
	frames: [
		"☱",
		"☲",
		"☴"
	]
};
var growVertical = {
	interval: 120,
	frames: [
		"▁",
		"▃",
		"▄",
		"▅",
		"▆",
		"▇",
		"▆",
		"▅",
		"▄",
		"▃"
	]
};
var growHorizontal = {
	interval: 120,
	frames: [
		"▏",
		"▎",
		"▍",
		"▌",
		"▋",
		"▊",
		"▉",
		"▊",
		"▋",
		"▌",
		"▍",
		"▎"
	]
};
var balloon = {
	interval: 140,
	frames: [
		" ",
		".",
		"o",
		"O",
		"@",
		"*",
		" "
	]
};
var balloon2 = {
	interval: 120,
	frames: [
		".",
		"o",
		"O",
		"°",
		"O",
		"o",
		"."
	]
};
var noise = {
	interval: 100,
	frames: [
		"▓",
		"▒",
		"░"
	]
};
var bounce = {
	interval: 120,
	frames: [
		"⠁",
		"⠂",
		"⠄",
		"⠂"
	]
};
var boxBounce = {
	interval: 120,
	frames: [
		"▖",
		"▘",
		"▝",
		"▗"
	]
};
var boxBounce2 = {
	interval: 100,
	frames: [
		"▌",
		"▀",
		"▐",
		"▄"
	]
};
var triangle = {
	interval: 50,
	frames: [
		"◢",
		"◣",
		"◤",
		"◥"
	]
};
var arc = {
	interval: 100,
	frames: [
		"◜",
		"◠",
		"◝",
		"◞",
		"◡",
		"◟"
	]
};
var circle = {
	interval: 120,
	frames: [
		"◡",
		"⊙",
		"◠"
	]
};
var squareCorners = {
	interval: 180,
	frames: [
		"◰",
		"◳",
		"◲",
		"◱"
	]
};
var circleQuarters = {
	interval: 120,
	frames: [
		"◴",
		"◷",
		"◶",
		"◵"
	]
};
var circleHalves = {
	interval: 50,
	frames: [
		"◐",
		"◓",
		"◑",
		"◒"
	]
};
var squish = {
	interval: 100,
	frames: [
		"╫",
		"╪"
	]
};
var toggle = {
	interval: 250,
	frames: [
		"⊶",
		"⊷"
	]
};
var toggle2 = {
	interval: 80,
	frames: [
		"▫",
		"▪"
	]
};
var toggle3 = {
	interval: 120,
	frames: [
		"□",
		"■"
	]
};
var toggle4 = {
	interval: 100,
	frames: [
		"■",
		"□",
		"▪",
		"▫"
	]
};
var toggle5 = {
	interval: 100,
	frames: [
		"▮",
		"▯"
	]
};
var toggle6 = {
	interval: 300,
	frames: [
		"ဝ",
		"၀"
	]
};
var toggle7 = {
	interval: 80,
	frames: [
		"⦾",
		"⦿"
	]
};
var toggle8 = {
	interval: 100,
	frames: [
		"◍",
		"◌"
	]
};
var toggle9 = {
	interval: 100,
	frames: [
		"◉",
		"◎"
	]
};
var toggle10 = {
	interval: 100,
	frames: [
		"㊂",
		"㊀",
		"㊁"
	]
};
var toggle11 = {
	interval: 50,
	frames: [
		"⧇",
		"⧆"
	]
};
var toggle12 = {
	interval: 120,
	frames: [
		"☗",
		"☖"
	]
};
var toggle13 = {
	interval: 80,
	frames: [
		"=",
		"*",
		"-"
	]
};
var arrow = {
	interval: 100,
	frames: [
		"←",
		"↖",
		"↑",
		"↗",
		"→",
		"↘",
		"↓",
		"↙"
	]
};
var arrow2 = {
	interval: 80,
	frames: [
		"⬆️ ",
		"↗️ ",
		"➡️ ",
		"↘️ ",
		"⬇️ ",
		"↙️ ",
		"⬅️ ",
		"↖️ "
	]
};
var arrow3 = {
	interval: 120,
	frames: [
		"▹▹▹▹▹",
		"▸▹▹▹▹",
		"▹▸▹▹▹",
		"▹▹▸▹▹",
		"▹▹▹▸▹",
		"▹▹▹▹▸"
	]
};
var bouncingBar = {
	interval: 80,
	frames: [
		"[    ]",
		"[=   ]",
		"[==  ]",
		"[=== ]",
		"[ ===]",
		"[  ==]",
		"[   =]",
		"[    ]",
		"[   =]",
		"[  ==]",
		"[ ===]",
		"[====]",
		"[=== ]",
		"[==  ]",
		"[=   ]"
	]
};
var bouncingBall = {
	interval: 80,
	frames: [
		"( ●    )",
		"(  ●   )",
		"(   ●  )",
		"(    ● )",
		"(     ●)",
		"(    ● )",
		"(   ●  )",
		"(  ●   )",
		"( ●    )",
		"(●     )"
	]
};
var smiley = {
	interval: 200,
	frames: [
		"😄 ",
		"😝 "
	]
};
var monkey = {
	interval: 300,
	frames: [
		"🙈 ",
		"🙈 ",
		"🙉 ",
		"🙊 "
	]
};
var hearts = {
	interval: 100,
	frames: [
		"💛 ",
		"💙 ",
		"💜 ",
		"💚 ",
		"❤️ "
	]
};
var clock = {
	interval: 100,
	frames: [
		"🕛 ",
		"🕐 ",
		"🕑 ",
		"🕒 ",
		"🕓 ",
		"🕔 ",
		"🕕 ",
		"🕖 ",
		"🕗 ",
		"🕘 ",
		"🕙 ",
		"🕚 "
	]
};
var earth = {
	interval: 180,
	frames: [
		"🌍 ",
		"🌎 ",
		"🌏 "
	]
};
var moon = {
	interval: 80,
	frames: [
		"🌑 ",
		"🌒 ",
		"🌓 ",
		"🌔 ",
		"🌕 ",
		"🌖 ",
		"🌗 ",
		"🌘 "
	]
};
var runner = {
	interval: 140,
	frames: [
		"🚶 ",
		"🏃 "
	]
};
var pong = {
	interval: 80,
	frames: [
		"▐⠂       ▌",
		"▐⠈       ▌",
		"▐ ⠂      ▌",
		"▐ ⠠      ▌",
		"▐  ⡀     ▌",
		"▐  ⠠     ▌",
		"▐   ⠂    ▌",
		"▐   ⠈    ▌",
		"▐    ⠂   ▌",
		"▐    ⠠   ▌",
		"▐     ⡀  ▌",
		"▐     ⠠  ▌",
		"▐      ⠂ ▌",
		"▐      ⠈ ▌",
		"▐       ⠂▌",
		"▐       ⠠▌",
		"▐       ⡀▌",
		"▐      ⠠ ▌",
		"▐      ⠂ ▌",
		"▐     ⠈  ▌",
		"▐     ⠂  ▌",
		"▐    ⠠   ▌",
		"▐    ⡀   ▌",
		"▐   ⠠    ▌",
		"▐   ⠂    ▌",
		"▐  ⠈     ▌",
		"▐  ⠂     ▌",
		"▐ ⠠      ▌",
		"▐ ⡀      ▌",
		"▐⠠       ▌"
	]
};
var shark = {
	interval: 120,
	frames: [
		"▐|\\____________▌",
		"▐_|\\___________▌",
		"▐__|\\__________▌",
		"▐___|\\_________▌",
		"▐____|\\________▌",
		"▐_____|\\_______▌",
		"▐______|\\______▌",
		"▐_______|\\_____▌",
		"▐________|\\____▌",
		"▐_________|\\___▌",
		"▐__________|\\__▌",
		"▐___________|\\_▌",
		"▐____________|\\▌",
		"▐____________/|▌",
		"▐___________/|_▌",
		"▐__________/|__▌",
		"▐_________/|___▌",
		"▐________/|____▌",
		"▐_______/|_____▌",
		"▐______/|______▌",
		"▐_____/|_______▌",
		"▐____/|________▌",
		"▐___/|_________▌",
		"▐__/|__________▌",
		"▐_/|___________▌",
		"▐/|____________▌"
	]
};
var dqpb = {
	interval: 100,
	frames: [
		"d",
		"q",
		"p",
		"b"
	]
};
var weather = {
	interval: 100,
	frames: [
		"☀️ ",
		"☀️ ",
		"☀️ ",
		"🌤 ",
		"⛅️ ",
		"🌥 ",
		"☁️ ",
		"🌧 ",
		"🌨 ",
		"🌧 ",
		"🌨 ",
		"🌧 ",
		"🌨 ",
		"⛈ ",
		"🌨 ",
		"🌧 ",
		"🌨 ",
		"☁️ ",
		"🌥 ",
		"⛅️ ",
		"🌤 ",
		"☀️ ",
		"☀️ "
	]
};
var christmas = {
	interval: 400,
	frames: [
		"🌲",
		"🎄"
	]
};
var grenade = {
	interval: 80,
	frames: [
		"،   ",
		"′   ",
		" ´ ",
		" ‾ ",
		"  ⸌",
		"  ⸊",
		"  |",
		"  ⁎",
		"  ⁕",
		" ෴ ",
		"  ⁓",
		"   ",
		"   ",
		"   "
	]
};
var point = {
	interval: 125,
	frames: [
		"∙∙∙",
		"●∙∙",
		"∙●∙",
		"∙∙●",
		"∙∙∙"
	]
};
var layer = {
	interval: 150,
	frames: [
		"-",
		"=",
		"≡"
	]
};
var spinners = {
	dots: dots,
	dots2: dots2,
	dots3: dots3,
	dots4: dots4,
	dots5: dots5,
	dots6: dots6,
	dots7: dots7,
	dots8: dots8,
	dots9: dots9,
	dots10: dots10,
	dots11: dots11,
	dots12: dots12,
	line: line,
	line2: line2,
	pipe: pipe$3,
	simpleDots: simpleDots,
	simpleDotsScrolling: simpleDotsScrolling,
	star: star,
	star2: star2,
	flip: flip,
	hamburger: hamburger,
	growVertical: growVertical,
	growHorizontal: growHorizontal,
	balloon: balloon,
	balloon2: balloon2,
	noise: noise,
	bounce: bounce,
	boxBounce: boxBounce,
	boxBounce2: boxBounce2,
	triangle: triangle,
	arc: arc,
	circle: circle,
	squareCorners: squareCorners,
	circleQuarters: circleQuarters,
	circleHalves: circleHalves,
	squish: squish,
	toggle: toggle,
	toggle2: toggle2,
	toggle3: toggle3,
	toggle4: toggle4,
	toggle5: toggle5,
	toggle6: toggle6,
	toggle7: toggle7,
	toggle8: toggle8,
	toggle9: toggle9,
	toggle10: toggle10,
	toggle11: toggle11,
	toggle12: toggle12,
	toggle13: toggle13,
	arrow: arrow,
	arrow2: arrow2,
	arrow3: arrow3,
	bouncingBar: bouncingBar,
	bouncingBall: bouncingBall,
	smiley: smiley,
	monkey: monkey,
	hearts: hearts,
	clock: clock,
	earth: earth,
	moon: moon,
	runner: runner,
	pong: pong,
	shark: shark,
	dqpb: dqpb,
	weather: weather,
	christmas: christmas,
	grenade: grenade,
	point: point,
	layer: layer
};

var spinners$1 = /*#__PURE__*/Object.freeze({
	dots: dots,
	dots2: dots2,
	dots3: dots3,
	dots4: dots4,
	dots5: dots5,
	dots6: dots6,
	dots7: dots7,
	dots8: dots8,
	dots9: dots9,
	dots10: dots10,
	dots11: dots11,
	dots12: dots12,
	line: line,
	line2: line2,
	pipe: pipe$3,
	simpleDots: simpleDots,
	simpleDotsScrolling: simpleDotsScrolling,
	star: star,
	star2: star2,
	flip: flip,
	hamburger: hamburger,
	growVertical: growVertical,
	growHorizontal: growHorizontal,
	balloon: balloon,
	balloon2: balloon2,
	noise: noise,
	bounce: bounce,
	boxBounce: boxBounce,
	boxBounce2: boxBounce2,
	triangle: triangle,
	arc: arc,
	circle: circle,
	squareCorners: squareCorners,
	circleQuarters: circleQuarters,
	circleHalves: circleHalves,
	squish: squish,
	toggle: toggle,
	toggle2: toggle2,
	toggle3: toggle3,
	toggle4: toggle4,
	toggle5: toggle5,
	toggle6: toggle6,
	toggle7: toggle7,
	toggle8: toggle8,
	toggle9: toggle9,
	toggle10: toggle10,
	toggle11: toggle11,
	toggle12: toggle12,
	toggle13: toggle13,
	arrow: arrow,
	arrow2: arrow2,
	arrow3: arrow3,
	bouncingBar: bouncingBar,
	bouncingBall: bouncingBall,
	smiley: smiley,
	monkey: monkey,
	hearts: hearts,
	clock: clock,
	earth: earth,
	moon: moon,
	runner: runner,
	pong: pong,
	shark: shark,
	dqpb: dqpb,
	weather: weather,
	christmas: christmas,
	grenade: grenade,
	point: point,
	layer: layer,
	default: spinners
});

var require$$0 = getCjsExportFromNamespace(spinners$1);

var cliSpinners = require$$0;

const isSupported = process.platform !== 'win32' || process.env.CI || process.env.TERM === 'xterm-256color';

const main$1 = {
	info: chalk.blue('ℹ'),
	success: chalk.green('✔'),
	warning: chalk.yellow('⚠'),
	error: chalk.red('✖')
};

const fallbacks = {
	info: chalk.blue('i'),
	success: chalk.green('√'),
	warning: chalk.yellow('‼'),
	error: chalk.red('×')
};

var logSymbols = isSupported ? main$1 : fallbacks;

var clone_1 = createCommonjsModule(function (module) {
var clone = (function() {

/**
 * Clones (copies) an Object using deep copying.
 *
 * This function supports circular references by default, but if you are certain
 * there are no circular references in your object, you can save some CPU time
 * by calling clone(obj, false).
 *
 * Caution: if `circular` is false and `parent` contains circular references,
 * your program may enter an infinite loop and crash.
 *
 * @param `parent` - the object to be cloned
 * @param `circular` - set to true if the object to be cloned may contain
 *    circular references. (optional - true by default)
 * @param `depth` - set to a number if the object is only to be cloned to
 *    a particular depth. (optional - defaults to Infinity)
 * @param `prototype` - sets the prototype to be used when cloning an object.
 *    (optional - defaults to parent prototype).
*/
function clone(parent, circular, depth, prototype) {
  var filter;
  if (typeof circular === 'object') {
    depth = circular.depth;
    prototype = circular.prototype;
    filter = circular.filter;
    circular = circular.circular;
  }
  // maintain two arrays for circular references, where corresponding parents
  // and children have the same index
  var allParents = [];
  var allChildren = [];

  var useBuffer = typeof Buffer != 'undefined';

  if (typeof circular == 'undefined')
    circular = true;

  if (typeof depth == 'undefined')
    depth = Infinity;

  // recurse this function so we don't reset allParents and allChildren
  function _clone(parent, depth) {
    // cloning null always returns null
    if (parent === null)
      return null;

    if (depth == 0)
      return parent;

    var child;
    var proto;
    if (typeof parent != 'object') {
      return parent;
    }

    if (clone.__isArray(parent)) {
      child = [];
    } else if (clone.__isRegExp(parent)) {
      child = new RegExp(parent.source, __getRegExpFlags(parent));
      if (parent.lastIndex) child.lastIndex = parent.lastIndex;
    } else if (clone.__isDate(parent)) {
      child = new Date(parent.getTime());
    } else if (useBuffer && Buffer.isBuffer(parent)) {
      if (Buffer.allocUnsafe) {
        // Node.js >= 4.5.0
        child = Buffer.allocUnsafe(parent.length);
      } else {
        // Older Node.js versions
        child = new Buffer(parent.length);
      }
      parent.copy(child);
      return child;
    } else {
      if (typeof prototype == 'undefined') {
        proto = Object.getPrototypeOf(parent);
        child = Object.create(proto);
      }
      else {
        child = Object.create(prototype);
        proto = prototype;
      }
    }

    if (circular) {
      var index = allParents.indexOf(parent);

      if (index != -1) {
        return allChildren[index];
      }
      allParents.push(parent);
      allChildren.push(child);
    }

    for (var i in parent) {
      var attrs;
      if (proto) {
        attrs = Object.getOwnPropertyDescriptor(proto, i);
      }

      if (attrs && attrs.set == null) {
        continue;
      }
      child[i] = _clone(parent[i], depth - 1);
    }

    return child;
  }

  return _clone(parent, depth);
}

/**
 * Simple flat clone using prototype, accepts only objects, usefull for property
 * override on FLAT configuration object (no nested props).
 *
 * USE WITH CAUTION! This may not behave as you wish if you do not know how this
 * works.
 */
clone.clonePrototype = function clonePrototype(parent) {
  if (parent === null)
    return null;

  var c = function () {};
  c.prototype = parent;
  return new c();
};

// private utility functions

function __objToStr(o) {
  return Object.prototype.toString.call(o);
}clone.__objToStr = __objToStr;

function __isDate(o) {
  return typeof o === 'object' && __objToStr(o) === '[object Date]';
}clone.__isDate = __isDate;

function __isArray(o) {
  return typeof o === 'object' && __objToStr(o) === '[object Array]';
}clone.__isArray = __isArray;

function __isRegExp(o) {
  return typeof o === 'object' && __objToStr(o) === '[object RegExp]';
}clone.__isRegExp = __isRegExp;

function __getRegExpFlags(re) {
  var flags = '';
  if (re.global) flags += 'g';
  if (re.ignoreCase) flags += 'i';
  if (re.multiline) flags += 'm';
  return flags;
}clone.__getRegExpFlags = __getRegExpFlags;

return clone;
})();

if (module.exports) {
  module.exports = clone;
}
});

var defaults$3 = function(options, defaults) {
  options = options || {};

  Object.keys(defaults).forEach(function(key) {
    if (typeof options[key] === 'undefined') {
      options[key] = clone_1(defaults[key]);
    }
  });

  return options;
};

var combining = [
    [ 0x0300, 0x036F ], [ 0x0483, 0x0486 ], [ 0x0488, 0x0489 ],
    [ 0x0591, 0x05BD ], [ 0x05BF, 0x05BF ], [ 0x05C1, 0x05C2 ],
    [ 0x05C4, 0x05C5 ], [ 0x05C7, 0x05C7 ], [ 0x0600, 0x0603 ],
    [ 0x0610, 0x0615 ], [ 0x064B, 0x065E ], [ 0x0670, 0x0670 ],
    [ 0x06D6, 0x06E4 ], [ 0x06E7, 0x06E8 ], [ 0x06EA, 0x06ED ],
    [ 0x070F, 0x070F ], [ 0x0711, 0x0711 ], [ 0x0730, 0x074A ],
    [ 0x07A6, 0x07B0 ], [ 0x07EB, 0x07F3 ], [ 0x0901, 0x0902 ],
    [ 0x093C, 0x093C ], [ 0x0941, 0x0948 ], [ 0x094D, 0x094D ],
    [ 0x0951, 0x0954 ], [ 0x0962, 0x0963 ], [ 0x0981, 0x0981 ],
    [ 0x09BC, 0x09BC ], [ 0x09C1, 0x09C4 ], [ 0x09CD, 0x09CD ],
    [ 0x09E2, 0x09E3 ], [ 0x0A01, 0x0A02 ], [ 0x0A3C, 0x0A3C ],
    [ 0x0A41, 0x0A42 ], [ 0x0A47, 0x0A48 ], [ 0x0A4B, 0x0A4D ],
    [ 0x0A70, 0x0A71 ], [ 0x0A81, 0x0A82 ], [ 0x0ABC, 0x0ABC ],
    [ 0x0AC1, 0x0AC5 ], [ 0x0AC7, 0x0AC8 ], [ 0x0ACD, 0x0ACD ],
    [ 0x0AE2, 0x0AE3 ], [ 0x0B01, 0x0B01 ], [ 0x0B3C, 0x0B3C ],
    [ 0x0B3F, 0x0B3F ], [ 0x0B41, 0x0B43 ], [ 0x0B4D, 0x0B4D ],
    [ 0x0B56, 0x0B56 ], [ 0x0B82, 0x0B82 ], [ 0x0BC0, 0x0BC0 ],
    [ 0x0BCD, 0x0BCD ], [ 0x0C3E, 0x0C40 ], [ 0x0C46, 0x0C48 ],
    [ 0x0C4A, 0x0C4D ], [ 0x0C55, 0x0C56 ], [ 0x0CBC, 0x0CBC ],
    [ 0x0CBF, 0x0CBF ], [ 0x0CC6, 0x0CC6 ], [ 0x0CCC, 0x0CCD ],
    [ 0x0CE2, 0x0CE3 ], [ 0x0D41, 0x0D43 ], [ 0x0D4D, 0x0D4D ],
    [ 0x0DCA, 0x0DCA ], [ 0x0DD2, 0x0DD4 ], [ 0x0DD6, 0x0DD6 ],
    [ 0x0E31, 0x0E31 ], [ 0x0E34, 0x0E3A ], [ 0x0E47, 0x0E4E ],
    [ 0x0EB1, 0x0EB1 ], [ 0x0EB4, 0x0EB9 ], [ 0x0EBB, 0x0EBC ],
    [ 0x0EC8, 0x0ECD ], [ 0x0F18, 0x0F19 ], [ 0x0F35, 0x0F35 ],
    [ 0x0F37, 0x0F37 ], [ 0x0F39, 0x0F39 ], [ 0x0F71, 0x0F7E ],
    [ 0x0F80, 0x0F84 ], [ 0x0F86, 0x0F87 ], [ 0x0F90, 0x0F97 ],
    [ 0x0F99, 0x0FBC ], [ 0x0FC6, 0x0FC6 ], [ 0x102D, 0x1030 ],
    [ 0x1032, 0x1032 ], [ 0x1036, 0x1037 ], [ 0x1039, 0x1039 ],
    [ 0x1058, 0x1059 ], [ 0x1160, 0x11FF ], [ 0x135F, 0x135F ],
    [ 0x1712, 0x1714 ], [ 0x1732, 0x1734 ], [ 0x1752, 0x1753 ],
    [ 0x1772, 0x1773 ], [ 0x17B4, 0x17B5 ], [ 0x17B7, 0x17BD ],
    [ 0x17C6, 0x17C6 ], [ 0x17C9, 0x17D3 ], [ 0x17DD, 0x17DD ],
    [ 0x180B, 0x180D ], [ 0x18A9, 0x18A9 ], [ 0x1920, 0x1922 ],
    [ 0x1927, 0x1928 ], [ 0x1932, 0x1932 ], [ 0x1939, 0x193B ],
    [ 0x1A17, 0x1A18 ], [ 0x1B00, 0x1B03 ], [ 0x1B34, 0x1B34 ],
    [ 0x1B36, 0x1B3A ], [ 0x1B3C, 0x1B3C ], [ 0x1B42, 0x1B42 ],
    [ 0x1B6B, 0x1B73 ], [ 0x1DC0, 0x1DCA ], [ 0x1DFE, 0x1DFF ],
    [ 0x200B, 0x200F ], [ 0x202A, 0x202E ], [ 0x2060, 0x2063 ],
    [ 0x206A, 0x206F ], [ 0x20D0, 0x20EF ], [ 0x302A, 0x302F ],
    [ 0x3099, 0x309A ], [ 0xA806, 0xA806 ], [ 0xA80B, 0xA80B ],
    [ 0xA825, 0xA826 ], [ 0xFB1E, 0xFB1E ], [ 0xFE00, 0xFE0F ],
    [ 0xFE20, 0xFE23 ], [ 0xFEFF, 0xFEFF ], [ 0xFFF9, 0xFFFB ],
    [ 0x10A01, 0x10A03 ], [ 0x10A05, 0x10A06 ], [ 0x10A0C, 0x10A0F ],
    [ 0x10A38, 0x10A3A ], [ 0x10A3F, 0x10A3F ], [ 0x1D167, 0x1D169 ],
    [ 0x1D173, 0x1D182 ], [ 0x1D185, 0x1D18B ], [ 0x1D1AA, 0x1D1AD ],
    [ 0x1D242, 0x1D244 ], [ 0xE0001, 0xE0001 ], [ 0xE0020, 0xE007F ],
    [ 0xE0100, 0xE01EF ]
];

var DEFAULTS = {
  nul: 0,
  control: 0
};

var wcwidth_1 = function wcwidth(str) {
  return wcswidth(str, DEFAULTS)
};

var config$1 = function(opts) {
  opts = defaults$3(opts || {}, DEFAULTS);
  return function wcwidth(str) {
    return wcswidth(str, opts)
  }
};

/*
 *  The following functions define the column width of an ISO 10646
 *  character as follows:
 *  - The null character (U+0000) has a column width of 0.
 *  - Other C0/C1 control characters and DEL will lead to a return value
 *    of -1.
 *  - Non-spacing and enclosing combining characters (general category
 *    code Mn or Me in the
 *    Unicode database) have a column width of 0.
 *  - SOFT HYPHEN (U+00AD) has a column width of 1.
 *  - Other format characters (general category code Cf in the Unicode
 *    database) and ZERO WIDTH
 *    SPACE (U+200B) have a column width of 0.
 *  - Hangul Jamo medial vowels and final consonants (U+1160-U+11FF)
 *    have a column width of 0.
 *  - Spacing characters in the East Asian Wide (W) or East Asian
 *    Full-width (F) category as
 *    defined in Unicode Technical Report #11 have a column width of 2.
 *  - All remaining characters (including all printable ISO 8859-1 and
 *    WGL4 characters, Unicode control characters, etc.) have a column
 *    width of 1.
 *  This implementation assumes that characters are encoded in ISO 10646.
*/

function wcswidth(str, opts) {
  if (typeof str !== 'string') return wcwidth(str, opts)

  var s = 0;
  for (var i = 0; i < str.length; i++) {
    var n = wcwidth(str.charCodeAt(i), opts);
    if (n < 0) return -1
    s += n;
  }

  return s
}

function wcwidth(ucs, opts) {
  // test for 8-bit control characters
  if (ucs === 0) return opts.nul
  if (ucs < 32 || (ucs >= 0x7f && ucs < 0xa0)) return opts.control

  // binary search in table of non-spacing characters
  if (bisearch(ucs)) return 0

  // if we arrive here, ucs is not a combining or C0/C1 control character
  return 1 +
      (ucs >= 0x1100 &&
       (ucs <= 0x115f ||                       // Hangul Jamo init. consonants
        ucs == 0x2329 || ucs == 0x232a ||
        (ucs >= 0x2e80 && ucs <= 0xa4cf &&
         ucs != 0x303f) ||                     // CJK ... Yi
        (ucs >= 0xac00 && ucs <= 0xd7a3) ||    // Hangul Syllables
        (ucs >= 0xf900 && ucs <= 0xfaff) ||    // CJK Compatibility Ideographs
        (ucs >= 0xfe10 && ucs <= 0xfe19) ||    // Vertical forms
        (ucs >= 0xfe30 && ucs <= 0xfe6f) ||    // CJK Compatibility Forms
        (ucs >= 0xff00 && ucs <= 0xff60) ||    // Fullwidth Forms
        (ucs >= 0xffe0 && ucs <= 0xffe6) ||
        (ucs >= 0x20000 && ucs <= 0x2fffd) ||
        (ucs >= 0x30000 && ucs <= 0x3fffd)));
}

function bisearch(ucs) {
  var min = 0;
  var max = combining.length - 1;
  var mid;

  if (ucs < combining[0][0] || ucs > combining[max][1]) return false

  while (max >= min) {
    mid = Math.floor((min + max) / 2);
    if (ucs > combining[mid][1]) min = mid + 1;
    else if (ucs < combining[mid][0]) max = mid - 1;
    else return true
  }

  return false
}
wcwidth_1.config = config$1;

const TEXT = Symbol('text');

class Ora {
	constructor(options) {
		if (typeof options === 'string') {
			options = {
				text: options
			};
		}

		this.options = Object.assign({
			text: '',
			color: 'cyan',
			stream: process.stderr
		}, options);

		const sp = this.options.spinner;
		this.spinner = typeof sp === 'object' ? sp : (process.platform === 'win32' ? cliSpinners.line : (cliSpinners[sp] || cliSpinners.dots)); // eslint-disable-line no-nested-ternary

		if (this.spinner.frames === undefined) {
			throw new Error('Spinner must define `frames`');
		}

		this.color = this.options.color;
		this.hideCursor = this.options.hideCursor !== false;
		this.interval = this.options.interval || this.spinner.interval || 100;
		this.stream = this.options.stream;
		this.id = null;
		this.frameIndex = 0;
		this.isEnabled = typeof this.options.isEnabled === 'boolean' ? this.options.isEnabled : ((this.stream && this.stream.isTTY) && !process.env.CI);

		// Set *after* `this.stream`
		this.text = this.options.text;
		this.linesToClear = 0;
	}

	get text() {
		return this[TEXT];
	}

	get isSpinning() {
		return this.id !== null;
	}

	set text(value) {
		this[TEXT] = value;
		const columns = this.stream.columns || 80;
		this.lineCount = stripAnsi('--' + value).split('\n').reduce((count, line) => {
			return count + Math.max(1, Math.ceil(wcwidth_1(line) / columns));
		}, 0);
	}

	frame() {
		const {frames} = this.spinner;
		let frame = frames[this.frameIndex];

		if (this.color) {
			frame = chalk[this.color](frame);
		}

		this.frameIndex = ++this.frameIndex % frames.length;

		return frame + ' ' + this.text;
	}

	clear() {
		if (!this.isEnabled || !this.stream.isTTY) {
			return this;
		}

		for (let i = 0; i < this.linesToClear; i++) {
			if (i > 0) {
				this.stream.moveCursor(0, -1);
			}
			this.stream.clearLine();
			this.stream.cursorTo(0);
		}
		this.linesToClear = 0;

		return this;
	}

	render() {
		this.clear();
		this.stream.write(this.frame());
		this.linesToClear = this.lineCount;

		return this;
	}

	start(text) {
		if (text) {
			this.text = text;
		}

		if (!this.isEnabled) {
			this.stream.write(`- ${this.text}\n`);
			return this;
		}

		if (this.isSpinning) {
			return this;
		}

		if (this.hideCursor) {
			cliCursor.hide(this.stream);
		}

		this.render();
		this.id = setInterval(this.render.bind(this), this.interval);

		return this;
	}

	stop() {
		if (!this.isEnabled) {
			return this;
		}

		clearInterval(this.id);
		this.id = null;
		this.frameIndex = 0;
		this.clear();
		if (this.hideCursor) {
			cliCursor.show(this.stream);
		}

		return this;
	}

	succeed(text) {
		return this.stopAndPersist({symbol: logSymbols.success, text});
	}

	fail(text) {
		return this.stopAndPersist({symbol: logSymbols.error, text});
	}

	warn(text) {
		return this.stopAndPersist({symbol: logSymbols.warning, text});
	}

	info(text) {
		return this.stopAndPersist({symbol: logSymbols.info, text});
	}

	stopAndPersist(options = {}) {
		this.stop();
		this.stream.write(`${options.symbol || ' '} ${options.text || this.text}\n`);

		return this;
	}
}

var ora = function (opts) {
	return new Ora(opts);
};

var promise = (action, options) => {
	if (typeof action.then !== 'function') {
		throw new TypeError('Parameter `action` must be a Promise');
	}

	const spinner = new Ora(options);
	spinner.start();

	action.then(
		() => {
			spinner.succeed();
		},
		() => {
			spinner.fail();
		}
	);

	return spinner;
};
ora.promise = promise;

var toString$1 = Object.prototype.toString;

var isPlainObj = function (x) {
	var prototype;
	return toString$1.call(x) === '[object Object]' && (prototype = Object.getPrototypeOf(x), prototype === null || prototype === Object.getPrototypeOf({}));
};

var arrify = function (val) {
	if (val === null || val === undefined) {
		return [];
	}

	return Array.isArray(val) ? val : [val];
};

const push = (obj, prop, value) => {
	if (!obj[prop]) {
		obj[prop] = [];
	}

	obj[prop].push(value);
};

const insert = (obj, prop, key, value) => {
	if (!obj[prop]) {
		obj[prop] = {};
	}

	obj[prop][key] = value;
};

const passthroughOptions = ['stopEarly', 'unknown', '--'];

var minimistOptions = options => {
	options = options || {};

	const result = {};

	passthroughOptions.forEach(key => {
		if (options[key]) {
			result[key] = options[key];
		}
	});

	Object.keys(options).forEach(key => {
		let value = options[key];

		if (key === 'arguments') {
			key = '_';
		}

		// If short form is used
		// convert it to long form
		// e.g. { 'name': 'string' }
		if (typeof value === 'string') {
			value = {type: value};
		}

		if (isPlainObj(value)) {
			const props = value;

			if (props.type) {
				const type = props.type;

				if (type === 'string') {
					push(result, 'string', key);
				}

				if (type === 'boolean') {
					push(result, 'boolean', key);
				}
			}

			const aliases = arrify(props.alias);

			aliases.forEach(alias => {
				insert(result, 'alias', alias, key);
			});

			if ({}.hasOwnProperty.call(props, 'default')) {
				insert(result, 'default', key, props.default);
			}
		}
	});

	return result;
};

var minimist = function (args, opts) {
    if (!opts) opts = {};
    
    var flags = { bools : {}, strings : {}, unknownFn: null };

    if (typeof opts['unknown'] === 'function') {
        flags.unknownFn = opts['unknown'];
    }

    if (typeof opts['boolean'] === 'boolean' && opts['boolean']) {
      flags.allBools = true;
    } else {
      [].concat(opts['boolean']).filter(Boolean).forEach(function (key) {
          flags.bools[key] = true;
      });
    }
    
    var aliases = {};
    Object.keys(opts.alias || {}).forEach(function (key) {
        aliases[key] = [].concat(opts.alias[key]);
        aliases[key].forEach(function (x) {
            aliases[x] = [key].concat(aliases[key].filter(function (y) {
                return x !== y;
            }));
        });
    });

    [].concat(opts.string).filter(Boolean).forEach(function (key) {
        flags.strings[key] = true;
        if (aliases[key]) {
            flags.strings[aliases[key]] = true;
        }
     });

    var defaults = opts['default'] || {};
    
    var argv = { _ : [] };
    Object.keys(flags.bools).forEach(function (key) {
        setArg(key, defaults[key] === undefined ? false : defaults[key]);
    });
    
    var notFlags = [];

    if (args.indexOf('--') !== -1) {
        notFlags = args.slice(args.indexOf('--')+1);
        args = args.slice(0, args.indexOf('--'));
    }

    function argDefined(key, arg) {
        return (flags.allBools && /^--[^=]+$/.test(arg)) ||
            flags.strings[key] || flags.bools[key] || aliases[key];
    }

    function setArg (key, val, arg) {
        if (arg && flags.unknownFn && !argDefined(key, arg)) {
            if (flags.unknownFn(arg) === false) return;
        }

        var value = !flags.strings[key] && isNumber(val)
            ? Number(val) : val
        ;
        setKey(argv, key.split('.'), value);
        
        (aliases[key] || []).forEach(function (x) {
            setKey(argv, x.split('.'), value);
        });
    }

    function setKey (obj, keys, value) {
        var o = obj;
        keys.slice(0,-1).forEach(function (key) {
            if (o[key] === undefined) o[key] = {};
            o = o[key];
        });

        var key = keys[keys.length - 1];
        if (o[key] === undefined || flags.bools[key] || typeof o[key] === 'boolean') {
            o[key] = value;
        }
        else if (Array.isArray(o[key])) {
            o[key].push(value);
        }
        else {
            o[key] = [ o[key], value ];
        }
    }
    
    function aliasIsBoolean(key) {
      return aliases[key].some(function (x) {
          return flags.bools[x];
      });
    }

    for (var i = 0; i < args.length; i++) {
        var arg = args[i];
        
        if (/^--.+=/.test(arg)) {
            // Using [\s\S] instead of . because js doesn't support the
            // 'dotall' regex modifier. See:
            // http://stackoverflow.com/a/1068308/13216
            var m = arg.match(/^--([^=]+)=([\s\S]*)$/);
            var key = m[1];
            var value = m[2];
            if (flags.bools[key]) {
                value = value !== 'false';
            }
            setArg(key, value, arg);
        }
        else if (/^--no-.+/.test(arg)) {
            var key = arg.match(/^--no-(.+)/)[1];
            setArg(key, false, arg);
        }
        else if (/^--.+/.test(arg)) {
            var key = arg.match(/^--(.+)/)[1];
            var next = args[i + 1];
            if (next !== undefined && !/^-/.test(next)
            && !flags.bools[key]
            && !flags.allBools
            && (aliases[key] ? !aliasIsBoolean(key) : true)) {
                setArg(key, next, arg);
                i++;
            }
            else if (/^(true|false)$/.test(next)) {
                setArg(key, next === 'true', arg);
                i++;
            }
            else {
                setArg(key, flags.strings[key] ? '' : true, arg);
            }
        }
        else if (/^-[^-]+/.test(arg)) {
            var letters = arg.slice(1,-1).split('');
            
            var broken = false;
            for (var j = 0; j < letters.length; j++) {
                var next = arg.slice(j+2);
                
                if (next === '-') {
                    setArg(letters[j], next, arg);
                    continue;
                }
                
                if (/[A-Za-z]/.test(letters[j]) && /=/.test(next)) {
                    setArg(letters[j], next.split('=')[1], arg);
                    broken = true;
                    break;
                }
                
                if (/[A-Za-z]/.test(letters[j])
                && /-?\d+(\.\d*)?(e-?\d+)?$/.test(next)) {
                    setArg(letters[j], next, arg);
                    broken = true;
                    break;
                }
                
                if (letters[j+1] && letters[j+1].match(/\W/)) {
                    setArg(letters[j], arg.slice(j+2), arg);
                    broken = true;
                    break;
                }
                else {
                    setArg(letters[j], flags.strings[letters[j]] ? '' : true, arg);
                }
            }
            
            var key = arg.slice(-1)[0];
            if (!broken && key !== '-') {
                if (args[i+1] && !/^(-|--)[^-]/.test(args[i+1])
                && !flags.bools[key]
                && (aliases[key] ? !aliasIsBoolean(key) : true)) {
                    setArg(key, args[i+1], arg);
                    i++;
                }
                else if (args[i+1] && /true|false/.test(args[i+1])) {
                    setArg(key, args[i+1] === 'true', arg);
                    i++;
                }
                else {
                    setArg(key, flags.strings[key] ? '' : true, arg);
                }
            }
        }
        else {
            if (!flags.unknownFn || flags.unknownFn(arg) !== false) {
                argv._.push(
                    flags.strings['_'] || !isNumber(arg) ? arg : Number(arg)
                );
            }
            if (opts.stopEarly) {
                argv._.push.apply(argv._, args.slice(i + 1));
                break;
            }
        }
    }
    
    Object.keys(defaults).forEach(function (key) {
        if (!hasKey(argv, key.split('.'))) {
            setKey(argv, key.split('.'), defaults[key]);
            
            (aliases[key] || []).forEach(function (x) {
                setKey(argv, x.split('.'), defaults[key]);
            });
        }
    });
    
    if (opts['--']) {
        argv['--'] = new Array();
        notFlags.forEach(function(key) {
            argv['--'].push(key);
        });
    }
    else {
        notFlags.forEach(function(key) {
            argv._.push(key);
        });
    }

    return argv;
};

function hasKey (obj, keys) {
    var o = obj;
    keys.slice(0,-1).forEach(function (key) {
        o = (o[key] || {});
    });

    var key = keys[keys.length - 1];
    return key in o;
}

function isNumber (x) {
    if (typeof x === 'number') return true;
    if (/^0x[0-9a-f]+$/i.test(x)) return true;
    return /^[-+]?(?:\d+(?:\.\d*)?|\.\d+)(e[-+]?\d+)?$/.test(x);
}

const { promisify: promisify$1 } = util;
const { createWriteStream, renameSync, unlinkSync } = fs;
const { download: download$1, listReleases: listReleases$1, InstallationError: InstallationError$1 } = getDeno;
const debug$1 = node('cli');










const spinner = ora();

kleur.enabled = Boolean(process.stdout.isTTY);

// NOTE: Copied from bili (by @egoist): https://git.io/fxupU
const supportsEmoji = process.platform !== 'win32' ||
                      process.env.TERM === 'xterm-256color';

const isWindows = () => /^win/i.test(os.platform());
const formatDate = str => str.split('T')[0];
const formatError = msg => msg.replace(/^\w*Error:\s+/, match => kleur.red().bold(match));
const pipe$4 = promisify$1(mississippi.pipe);

const options$1 = minimistOptions({
  help: { type: 'boolean', alias: 'h' },
  version: { type: 'boolean', alias: 'v' },
  'list-releases': { type: 'boolean', alias: 'l' }
});
options$1.unknown = option => fail(`Error: Unknown option \`${option}\``, -1);
const argv = minimist(process.argv.slice(2), options$1);

const help = `
  ${kleur.bold(pkg$1.name)} v${pkg$1.version}

  Usage:
    $ ${pkg$1.name} [version]  # install specified version, defaults to latest

  Options:
    -l, --list-releases  List deno releases
    -h, --help           Show help
    -v, --version        Show version number

  Homepage:     ${kleur.green(pkg$1.homepage)}
  Report issue: ${kleur.green(pkg$1.bugs.url)}
`;

program(argv._, argv).catch(err => {
  spinner.stop().clear();
  console.error(formatError(err.stack));
});

async function program([input], flags) {
  if (flags.version) return console.log(pkg$1.version);
  if (flags.help) return console.log(help);
  input = input && `${input}`;
  if (flags['list-releases']) {
    const range = semver.validRange(input) || '*';
    debug$1('list releases inside range=`%s`', range);
    return printReleases(range);
  }
  let version = semver.valid(semver.coerce(input));
  if (input && !version) {
    fail('Error: Invalid version provided.', 2);
  }
  version = version ? `v${version}` : 'latest';
  debug$1('install version `%s`', version);
  try {
    await install(version);
  } catch (err) {
    if (!(err instanceof InstallationError$1)) throw err;
    fail(`Error: ${err.message}`);
  }
}

async function install(version) {
  const gauge$$1 = new gauge();
  spinner.start(`Querying ${kleur.bold(pkg$1.config.repo)} for version: ${kleur.cyan(version)}...`);

  const dest = await makeDir(path.join(os.homedir(), '/.deno/bin/'));
  const stream$$1 = await download$1(version);
  stream$$1.on('download:progress', (value, downloaded, total) => {
    const stats = `${prettyBytes(downloaded)}/${kleur.bold(prettyBytes(total))}`;
    gauge$$1.show(stats, value);
    gauge$$1.pulse();
  });
  exitHook(() => {
    try {
      unlinkSync(`${binary}.download`);
    } catch (err) {
      if (err.code !== 'ENOENT') throw err;
    }
  });

  version = stream$$1.metadata.version.replace(/^v/, '');
  spinner.text = `Downloading ${kleur.bold().cyan(`deno@${version}`)} from ${kleur.gray(stream$$1.metadata.url)}`;
  spinner.stopAndPersist({ symbol: supportsEmoji && '📦 ' });

  const binary = path.join(dest, isWindows() ? 'deno.exe' : 'deno');
  await pipe$4(stream$$1, createWriteStream(`${binary}.download`, { mode: pkg$1.config.umask }));
  gauge$$1.hide();
  clearSpinner(spinner);

  renameSync(`${binary}.download`, binary);
  spinner.succeed(`${kleur.bold().cyan(`deno@${version}`)} is successfully installed!`);
}

async function printReleases(range) {
  spinner.start(`Querying ${kleur.bold(pkg$1.config.repo)} for available releases...`);
  const releases = await listReleases$1();
  if (!releases || releases.length <= 0) {
    fail('Error: No releases found.', 3);
  }
  const matches = releases.reduce((acc, it) => {
    const version = semver.coerce(it.tag);
    if (!semver.satisfies(version, range)) return acc;
    acc.push([it.tag.padEnd(10), kleur.gray(formatDate(it.publishedAt))].join(''));
    return acc;
  }, []);
  if (matches.length <= 0) {
    fail('Error: There are no releases satisfying given range.', 4);
  }
  spinner.stop().clear();
  console.log(matches.join('\n'));
}

function fail(message, code = 1) {
  message = formatError(message);
  if (spinner.isSpinning) spinner.fail(message);
  else console.error(message);
  process.exit(code);
}

function clearSpinner(spinner) {
  let line = 0;
  while (line < spinner.lineCount) {
    spinner.stream.moveCursor(0, -1);
    spinner.stream.clearLine();
    spinner.stream.cursorTo(0);
    line += 1;
  }
}

var cli = {

};

module.exports = cli;
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