preconstruct/cli/dist/preconstruct.cjs.dev.js

'use strict';

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

var meow = _interopDefault(require('meow'));
var _defineProperty = _interopDefault(require('@babel/runtime/helpers/defineProperty'));
var is = _interopDefault(require('sarcastic'));
var globby = _interopDefault(require('globby'));
var fs = require('fs-extra');
var path = _interopDefault(require('path'));
var util = _interopDefault(require('util'));
var _objectSpread = _interopDefault(require('@babel/runtime/helpers/objectSpread'));
var inquirer = _interopDefault(require('inquirer'));
var pLimit = _interopDefault(require('p-limit'));
var DataLoader = _interopDefault(require('dataloader'));
var chalk = _interopDefault(require('chalk'));
var resolveFrom = _interopDefault(require('resolve-from'));
var packlist = _interopDefault(require('npm-packlist'));
var equal = _interopDefault(require('fast-deep-equal'));
var resolve = _interopDefault(require('resolve'));
var resolve$1 = _interopDefault(require('rollup-plugin-node-resolve'));
var alias = _interopDefault(require('rollup-plugin-alias'));
var cjs = _interopDefault(require('rollup-plugin-commonjs'));
var replace = _interopDefault(require('rollup-plugin-replace'));
var builtInModules = _interopDefault(require('builtin-modules'));
var rollup$1 = require('rollup');
var fs$1 = require('fs');
var json = _interopDefault(require('rollup-plugin-json'));
var _objectWithoutProperties = _interopDefault(require('@babel/runtime/helpers/objectWithoutProperties'));
var babel = require('@babel/core');
var rollupPluginutils = require('rollup-pluginutils');
var Worker = _interopDefault(require('jest-worker'));
var initHasher = _interopDefault(require('xxhash-wasm'));
var QuickLRU = _interopDefault(require('quick-lru'));
var codeFrame = require('@babel/code-frame');
var installPackages = _interopDefault(require('install-packages'));
var ms = _interopDefault(require('ms'));

let EXTENSIONS = [".js", ".jsx", ".ts", ".tsx"];
let PKG_JSON_CONFIG_FIELD = "preconstruct";

let itemsByPath = {};
class Item {
  constructor(filePath, contents) {
    _defineProperty(this, "_contents", void 0);

    _defineProperty(this, "_stringifiedSavedJson", void 0);

    _defineProperty(this, "path", void 0);

    _defineProperty(this, "directory", void 0);

    _defineProperty(this, "json", void 0);

    _defineProperty(this, "_config", void 0);

    this.json = is(JSON.parse(contents), is.object);
    this._stringifiedSavedJson = JSON.stringify(this.json, null, 2);
    this._contents = contents;
    this.path = filePath;
    this.directory = path.dirname(filePath);
    this._config = this.json[PKG_JSON_CONFIG_FIELD] || {};

    if (itemsByPath[this.path] === undefined) {
      itemsByPath[this.path] = new Set();
    }

    itemsByPath[this.path].add(this);
  }

  updater(json) {
    this.json = json;
  }

  async refresh() {
    let contents = await fs.readFile(this.path, "utf-8");
    let json = is(JSON.parse(contents), is.object);

    for (let item of itemsByPath[this.path]) {
      item.updater(json);
    }
  }

  async save() {
    if (Object.keys(this._config).length) {
      this.json[PKG_JSON_CONFIG_FIELD] = this._config;
    } else {
      delete this.json[PKG_JSON_CONFIG_FIELD];
    }

    let stringified = JSON.stringify(this.json, null, 2);

    if (stringified !== this._stringifiedSavedJson) {
      await fs.writeFile(this.path, JSON.stringify(this.json, null, 2) + "\n");
      this._config = this.json[PKG_JSON_CONFIG_FIELD] || {};

      for (let item of itemsByPath[this.path]) {
        item.updater(this.json);
      }

      this._stringifiedSavedJson = stringified;
      return true;
    }

    return false;
  }

}

class FatalError extends Error {
  constructor(message, scope) {
    super(message);

    _defineProperty(this, "scope", void 0);

    this.scope = scope;
  }

}
class UnexpectedBuildError extends FatalError {
  constructor(error, pkgName) {
    super(`${util.format("", error).trim()}`, pkgName);
  }

}
class FixableError extends FatalError {}

let limit = pLimit(1); // there might be a simpler solution to this than using dataloader but it works so ¯\_(ツ)_/¯

let prefix = `🎁 ${chalk.green("?")}`;
function createPromptConfirmLoader(message) {
  let loader = new DataLoader(pkgs => limit(() => (async () => {
    if (pkgs.length === 1) {
      let {
        confirm
      } = await inquirer.prompt([{
        type: "confirm",
        name: "confirm",
        message,
        prefix: prefix + " " + pkgs[0].name
      }]);
      return [confirm];
    }

    let {
      answers
    } = await inquirer.prompt([{
      type: "checkbox",
      name: "answers",
      message,
      choices: pkgs.map(pkg => ({
        name: pkg.name,
        checked: true
      })),
      prefix
    }]);
    return pkgs.map(pkg => {
      return answers.includes(pkg.name);
    });
  })(), {
    cache: false
  }));
  return pkg => loader.load(pkg);
}
let promptConfirm = async message => {
  let {
    confirm
  } = await inquirer.prompt([{
    type: "confirm",
    name: "confirm",
    message,
    prefix: prefix
  }]);
  return confirm;
};

let doPromptInput = async (message, pkg, defaultAnswer) => {
  let {
    input
  } = await inquirer.prompt([{
    type: "input",
    name: "input",
    message,
    prefix: prefix + " " + pkg.name,
    default: defaultAnswer
  }]);
  return input;
};

let promptInput = (message, pkg, defaultAnswer) => limit(() => doPromptInput(message, pkg, defaultAnswer));

function format(args, messageType, scope) {
  let prefix = {
    error: chalk.red("error"),
    success: chalk.green("success"),
    info: chalk.cyan("info")
  }[messageType];
  let fullPrefix = "🎁 " + prefix + (scope === undefined ? "" : " " + chalk.cyan(scope));
  return fullPrefix + util.format("", ...args).split("\n").join("\n" + fullPrefix + " ");
}
function error(message, scope) {
  console.error(format([message], "error", scope));
}
function success(message, scope) {
  console.log(format([message], "success", scope));
}
function info(message, scope) {
  console.log(format([message], "info", scope));
}

async function validateIncludedFiles(pkg) {
  try {
    await Promise.all(pkg.entrypoints.map(async entrypoint => {
      let filename = path.join(entrypoint.directory, "dist", "preconstruct-test-file");
      await fs.ensureFile(filename);
      return fs.writeFile(filename, "test content");
    }));
    let result = await packlist({
      path: pkg.directory
    }); // check that we're including the package.json and main file
    // TODO: add Flow and TS check and if they're ignored, don't write them

    let messages = [];
    pkg.entrypoints.forEach(entrypoint => {
      let pkgJsonPath = path.relative(pkg.directory, path.resolve(entrypoint.directory, "package.json"));
      let distFilePath = path.relative(pkg.directory, path.resolve(entrypoint.directory, "dist", "preconstruct-test-file"));
      let entrypointName = path.relative(pkg.directory, entrypoint.directory);

      if (!result.includes(pkgJsonPath)) {
        messages.push(`the entrypoint ${chalk.cyan(entrypointName)} isn't included in the published files for this package, please add it to the files field in the package's package.json`);
      } else if (!result.includes(distFilePath)) {
        messages.push(`the dist directory ${entrypointName === "" ? "" : `for entrypoint ${chalk.cyan(entrypointName)} `}isn't included in the published files for this package, please add it to the files field in the package's package.json`);
      }
    });

    if (messages.length) {
      throw new FatalError(messages.join("\n"), pkg.name);
    }
  } finally {
    await Promise.all(pkg.entrypoints.map(entrypoint => fs.remove(path.join(entrypoint.directory, "dist", "preconstruct-test-file"))));
  }
}

let unsafeRequire = require;
let askGlobalLimit = pLimit(1);
class Project extends Item {
  constructor(...args) {
    super(...args);

    _defineProperty(this, "packages", void 0);
  }

  get configPackages() {
    return is(this._config.packages, is.default(is.arrayOf(is.string), ["."]));
  } // probably gonna be irrelevant later but i want it for now


  get isBolt() {
    // we only want to return true when there is bolt config
    // AND no yarn workspaces config
    // because emotion has a bolt config and yarn workspaces
    // and if you have both, you probably want workspaces
    let hasBolt = !!this.json.bolt;
    let hasYarnWorkspaces = !!this.json.workspaces;
    return hasBolt && !hasYarnWorkspaces;
  }

  static async create(directory) {
    let filePath = path.join(directory, "package.json");
    let contents = await fs.readFile(filePath, "utf-8");
    let project = new Project(filePath, contents);
    project.packages = await project._packages();
    return project;
  }

  get name() {
    return is(this.json.name, is.string);
  }

  set name(name) {
    this.json.name = name;
  }

  async _packages() {
    // suport bolt later probably
    // maybe lerna too though probably not
    if (!this._config.packages && this.json.workspaces) {
      let _workspaces;

      if (Array.isArray(this.json.workspaces)) {
        _workspaces = this.json.workspaces;
      } else if (Array.isArray(this.json.workspaces.packages)) {
        _workspaces = this.json.workspaces.packages;
      }

      let workspaces = is(_workspaces, is.arrayOf(is.string));
      let packages = await promptInput("what packages should preconstruct build?", this, workspaces.join(","));
      this._config.packages = packages.split(",");
      await this.save();
    }

    try {
      let filenames = await globby(this.configPackages, {
        cwd: this.directory,
        onlyDirectories: true,
        absolute: true,
        expandDirectories: false
      });
      let dirsWithoutPkgJson = [];
      let lastErr;
      let packages = await Promise.all(filenames.map(async x => {
        try {
          let pkg = await Package.create(x);
          pkg.project = this;
          return pkg;
        } catch (err) {
          if (err.code === "ENOENT" && err.path === path.join(x, "package.json")) {
            lastErr = err;
            dirsWithoutPkgJson.push(x);
            return undefined;
          }

          throw err;
        }
      }));

      if (dirsWithoutPkgJson.length) {
        error("there are some package directories that do not have package.jsons\nthis is often caused by switching branches.\n\n" + dirsWithoutPkgJson.join("\n") + "\n");

        if (!(await promptConfirm("would you like preconstruct to delete these directories automatically?"))) {
          throw lastErr;
        }

        await Promise.all(dirsWithoutPkgJson.map(dir => fs.remove(dir)));
        return this._packages();
      }

      await Promise.all(packages.map(pkg => validateIncludedFiles(pkg)));
      return packages;
    } catch (error) {
      if (error instanceof is.AssertionError) {
        return [];
      }

      throw error;
    }
  }

  global(pkg) {
    if (this._config.globals !== undefined && this._config.globals[pkg]) {
      return this._config.globals[pkg];
    } else {
      try {
        let pkgJson = unsafeRequire(resolveFrom(this.directory, path.join(pkg, "package.json")));

        if (pkgJson && pkgJson[PKG_JSON_CONFIG_FIELD] && pkgJson[PKG_JSON_CONFIG_FIELD].umdName) {
          return pkgJson[PKG_JSON_CONFIG_FIELD].umdName;
        }
      } catch (err) {
        if (err.code !== "MODULE_NOT_FOUND") {
          throw err;
        }
      }

      throw askGlobalLimit(() => (async () => {
        // if while we were waiting, that global was added, return
        if (this._config.globals !== undefined && this._config.globals[pkg]) {
          return;
        }

        let response = await promptInput(`What should the umdName of ${pkg} be?`, this);

        this._addGlobal(pkg, response);

        await this.save();
      })());
    }
  }

  _addGlobal(pkg, name) {
    if (!this._config.globals) {
      this._config.globals = {};
    }

    this._config.globals[pkg] = name;
  }

}

let errors = {
  noSource: source => `no source file was provided, please create a file at ${source} or specify a custom source file with the ${PKG_JSON_CONFIG_FIELD} source option`,
  deniedWriteMainField: "changing the main field is required to build",
  invalidModuleField: "module field is invalid",
  invalidMainField: "main field is invalid",
  invalidUmdMainField: "umd:main field is invalid",
  invalidBrowserField: "browser field is invalid",
  invalidReactNativeField: "react-native field is invalid",
  umdNameNotSpecified: `the umd:main field is specified but a umdName option is not specified. please add it to the ${PKG_JSON_CONFIG_FIELD} field in your package.json`,
  deniedWriteBrowserField: "building browser bundles for modules that include typeof" + " window or typeof" + " document is currently required",
  noEntrypointPkgJson: "There is a missing package.json for an entrypoint",
  noEntrypoints: "packages must have at least one entrypoint, this package has no entrypoints"
};
let confirms = {
  writeMainField: createPromptConfirmLoader("preconstruct is going to change the main field in your package.json, are you okay with that?"),
  writeModuleField: createPromptConfirmLoader("would you like to generate module builds? this will write to the module field in your package.json"),
  fixModuleField: createPromptConfirmLoader("would you like to fix the module field?"),
  fixUmdBuild: createPromptConfirmLoader("would you like to fix the umd field?"),
  shouldInstallObjectAssign: createPromptConfirmLoader("Object.assign is polyfilled with object-assign to reduce bundle size when used with react. would you like to install object-assign automatically?"),
  shouldInstallBabelRuntime: createPromptConfirmLoader("Babel helpers (functions inserted by babel transforms) should be imported from a @babel/runtime package (which has to be in your dependencies) to reduce bundle size. would you like to install @babel/runtime automatically?"),
  addBrowserField: createPromptConfirmLoader("typeof" + " window or typeof" + " document is used in this package. would you like build seperate browser builds for better browser bundle sizes?"),
  fixBrowserField: createPromptConfirmLoader("would you like to fix the browser build?"),
  createEntrypointPkgJson: createPromptConfirmLoader("A package.json file does not exist for this entrypoint, would you like to create one automatically?")
};
let inputs = {
  getUmdName: "what should the name used for UMD bundles be?"
};
let infos = {
  validMainField: "main field is valid",
  validModuleField: "module field is valid",
  validUmdMainField: "umd:main field is valid",
  validEntrypoint: "a valid entry point exists.",
  validBrowserField: "browser field is valid",
  validReactNativeField: "react-native field is valid",
  validPackageEntrypoints: "package entrypoints are valid"
};
let successes = {
  validProject: "project is valid!",
  startedWatching: "started watching!"
};

function getNameForDist(name) {
  return name.replace(/.*\//, "");
}
function getValidStringFieldContentForBuildType(type, pkgName) {
  let safeName = getNameForDist(pkgName);

  switch (type) {
    case "main":
      {
        return `dist/${safeName}.cjs.js`;
      }

    case "module":
      {
        return `dist/${safeName}.esm.js`;
      }

    case "umd:main":
      {
        return `dist/${safeName}.umd.min.js`;
      }
  }

  throw new Error(`unknown string build type: ${type}. this is likely a bug in preconstruct.`);
}
function getValidObjectFieldContentForBuildType(type, pkgName, hasModuleBuild) {
  let safeName = getNameForDist(pkgName);

  switch (type) {
    case "browser":
      {
        let obj = {
          [`./dist/${safeName}.cjs.js`]: `./dist/${safeName}.browser.cjs.js`
        };

        if (hasModuleBuild) {
          obj[`./dist/${safeName}.esm.js`] = `./dist/${safeName}.browser.esm.js`;
        }

        return obj;
      }

    case "react-native":
      {
        let obj = {
          [`./dist/${safeName}.cjs.js`]: `./dist/${safeName}.native.cjs.js`
        };

        if (hasModuleBuild) {
          obj[`./dist/${safeName}.esm.js`] = `./dist/${safeName}.native.esm.js`;
        }

        return obj;
      }
  }

  throw new Error(`unknown object build type: ${type}. this is likely a bug in preconstruct.`);
}
function flowTemplate(hasDefaultExport, relativePath) {
  return `// @flow
export * from "${relativePath}";${hasDefaultExport ? `\nexport { default } from "${relativePath}";` : ""}\n`;
}
function tsTemplate(hasDefaultExport, relativePath) {
  return `export * from "${relativePath}";${hasDefaultExport ? `\nexport { default } from "${relativePath}";` : ""}\n`;
}

/*:: 
import { Package } from "./package";
*/

let camelToPkgJsonField = {
  main: "main",
  module: "module",
  umdMain: "umd:main",
  browser: "browser",
  reactNative: "react-native"
};
async function fixPackage(pkg) {
  if (pkg.entrypoints.length === 0) {
    throw new FatalError(errors.noEntrypoints, pkg.name);
  }

  let fields = {
    main: true,
    module: pkg.entrypoints.some(x => x.module),
    umdMain: pkg.entrypoints.some(x => x.umdMain),
    browser: pkg.entrypoints.some(x => x.browser),
    reactNative: pkg.entrypoints.some(x => x.reactNative)
  };
  Object.keys(fields).filter(x => fields[x]).forEach(field => {
    pkg.setFieldOnEntrypoints(field);
  });
  return (await Promise.all(pkg.entrypoints.map(x => x.save()))).some(x => x);
}
let unsafeRequire$1 = require;
function validatePackage(pkg) {
  if (pkg.entrypoints.length === 0) {
    throw new FatalError(errors.noEntrypoints, pkg.name);
  }

  let fields = {
    // main is intentionally not here, since it's always required
    // it will be validated in validateEntrypoint and the case
    // which this function validates will never happen
    module: !!pkg.entrypoints[0].module,
    umdMain: !!pkg.entrypoints[0].umdMain,
    browser: !!pkg.entrypoints[0].browser,
    reactNative: !!pkg.entrypoints[0].reactNative
  };
  pkg.entrypoints.forEach(entrypoint => {
    Object.keys(fields).forEach(field => {
      if ( // $FlowFixMe
      entrypoint[field] && !fields[field]) {
        throw new FixableError(`${pkg.entrypoints[0].name} has a ${camelToPkgJsonField[field]} build but ${entrypoint.name} does not have a ${camelToPkgJsonField[field]} build. Entrypoints in a package must either all have a particular build type or all not have a particular build type.`, pkg.name);
      }

      if ( // $FlowFixMe
      !entrypoint[field] && fields[field]) {
        throw new FixableError(`${entrypoint.name} has a ${camelToPkgJsonField[field]} build but ${pkg.entrypoints[0].name} does not have a ${camelToPkgJsonField[field]} build. Entrypoints in a package must either all have a particular build type or all not have a particular build type.`, pkg.name);
      }
    });
  }); // TODO: do this well

  if (fields.umdMain) {
    // this is a sorta naive check
    // but it's handling the most common case
    // i don't think it's worth implementing this well at this exact moment
    // because i'm guessing doing it well would cause more problems than it would solve
    // this will likely change in the future
    let sortaAllDeps = new Set([...(pkg.peerDependencies ? Object.keys(pkg.peerDependencies) : []), ...(pkg.dependencies ? Object.keys(pkg.dependencies) : [])]);

    for (let depName in pkg.dependencies) {
      let depPkgJson = unsafeRequire$1(resolveFrom(pkg.directory, depName + "/package.json"));

      if (depPkgJson.peerDependencies) {
        for (let pkgName in depPkgJson.peerDependencies) {
          if (!sortaAllDeps.has(pkgName)) {
            throw new FatalError(`the package ${chalk.blue(pkg.name)} depends on ${chalk.blue(depName)} which has a peerDependency on ${chalk.blue(pkgName)} but ${chalk.blue(pkgName)} is not specified in the dependencies or peerDependencies of ${chalk.blue(pkg.name)}. please add ${chalk.blue(pkgName)} to the dependencies or peerDependencies of ${chalk.blue(pkg.name)}`, pkg.name);
          }
        }
      }
    }
  }
}

// just does validation
// used in build and watch

function validateEntrypointSource(entrypoint) {
  try {
    if (!entrypoint.source.startsWith(entrypoint.package.directory)) {
      throw new FatalError(`entrypoint source files must be inside their respective package directory but this entrypoint has specified its source file as ${entrypoint.configSource}`, entrypoint.name);
    }
  } catch (e) {
    if (e.code === "MODULE_NOT_FOUND") {
      throw new FatalError(errors.noSource(entrypoint.configSource), entrypoint.name);
    }

    throw e;
  }
}
function isMainFieldValid(entrypoint) {
  return entrypoint.main === getValidStringFieldContentForBuildType("main", entrypoint.package.name);
}
function isModuleFieldValid(entrypoint) {
  return entrypoint.module === getValidStringFieldContentForBuildType("module", entrypoint.package.name);
}
function isUmdMainFieldValid(entrypoint) {
  return entrypoint.umdMain === getValidStringFieldContentForBuildType("umd:main", entrypoint.package.name);
}
function isBrowserFieldValid(entrypoint) {
  return equal(entrypoint.browser, getValidObjectFieldContentForBuildType("browser", entrypoint.package.name, entrypoint.module !== null));
}
function isReactNativeFieldValid(entrypoint) {
  return equal(entrypoint.reactNative, getValidObjectFieldContentForBuildType("react-native", entrypoint.package.name, entrypoint.module !== null));
}
function isUmdNameSpecified(entrypoint) {
  return typeof entrypoint._config.umdName === "string";
}
function validateEntrypoint(entrypoint, log) {
  validateEntrypointSource(entrypoint);

  if (log) {
    info(infos.validEntrypoint, entrypoint.name);
  }

  if (!isMainFieldValid(entrypoint)) {
    throw new FixableError(errors.invalidMainField, entrypoint.name);
  }

  if (log) {
    info(infos.validMainField, entrypoint.name);
  }

  if (entrypoint.module !== null) {
    if (isModuleFieldValid(entrypoint)) {
      if (log) {
        info(infos.validModuleField, entrypoint.name);
      }
    } else {
      throw new FixableError(errors.invalidModuleField, entrypoint.name);
    }
  }

  if (entrypoint.umdMain !== null) {
    if (isUmdMainFieldValid(entrypoint)) {
      if (isUmdNameSpecified(entrypoint)) {
        if (log) {
          info(infos.validUmdMainField, entrypoint.name);
        }
      } else {
        throw new FixableError(errors.umdNameNotSpecified, entrypoint.name);
      }
    } else {
      throw new FixableError(errors.invalidUmdMainField, entrypoint.name);
    }
  }

  if (entrypoint.browser !== null) {
    if (typeof entrypoint.browser === "string" || !isBrowserFieldValid(entrypoint)) {
      throw new FixableError(errors.invalidBrowserField, entrypoint.name);
    } else if (log) {
      info(infos.validBrowserField, entrypoint.name);
    }
  }

  if (entrypoint.reactNative !== null) {
    if (typeof entrypoint.reactNative === "string" || !isReactNativeFieldValid(entrypoint)) {
      throw new FixableError(errors.invalidReactNativeField, entrypoint.name);
    } else if (log) {
      info(infos.validReactNativeField, entrypoint.name);
    }
  }
}
async function validate(directory) {
  let project = await Project.create(directory);

  for (let pkg of project.packages) {
    validatePackage(pkg);

    for (let entrypoint of pkg.entrypoints) {
      validateEntrypoint(entrypoint, true);
    }

    info(infos.validPackageEntrypoints, pkg.name);
  }

  success(successes.validProject);
}

let fields = ["version", "description", "main", "module", "umd:main", "browser", "react-native"];

function setFieldInOrder(obj, field, value) {
  if (field in obj) {
    return _objectSpread({}, obj, {
      [field]: value
    });
  }

  let fieldIndex = fields.indexOf(field);
  let idealField = fields.slice(0, fieldIndex).reverse().find(key => {
    return key in obj;
  });

  if (idealField === undefined) {
    return _objectSpread({}, obj, {
      [field]: value
    });
  }

  let newObj = {};

  for (let key in obj) {
    newObj[key] = obj[key];

    if (key === idealField) {
      newObj[field] = value;
    }
  }

  return newObj;
}
/*::
import { Package } from './package'
*/


class Entrypoint extends Item {
  constructor(filePath, contents, pkg) {
    super(filePath, contents);

    _defineProperty(this, "package", void 0);

    _defineProperty(this, "_strict", void 0);

    this.package = pkg;
  }

  get name() {
    return path.join(this.package.name, path.relative(this.package.directory, this.directory));
  }

  get main() {
    return is(this.json.main, is.maybe(is.string));
  }

  set main(path) {
    this.json = setFieldInOrder(this.json, "main", path);
  }

  get module() {
    return is(this.json.module, is.maybe(is.string));
  }

  set module(path) {
    this.json = setFieldInOrder(this.json, "module", path);
  }

  get browser() {
    return is(this.json.browser, is.maybe(is.either(is.string, is.objectOf(is.string))));
  }

  set browser(option) {
    this.json = setFieldInOrder(this.json, "browser", option);
  }

  get reactNative() {
    return is(this.json["react-native"], is.maybe(is.either(is.string, is.objectOf(is.string))));
  }

  set reactNative(option) {
    this.json = setFieldInOrder(this.json, "react-native", option);
  }

  get umdMain() {
    return is(this.json["umd:main"], is.maybe(is.string));
  }

  set umdMain(path) {
    this.json = setFieldInOrder(this.json, "umd:main", path);
  }

  get configSource() {
    return is(this._config.source, is.default(is.string, "src/index"));
  }

  get source() {
    return resolve.sync(path.join(this.directory, this.configSource), {
      extensions: EXTENSIONS
    });
  }

  get umdName() {
    return is(this._config.umdName, is.maybe(is.string));
  }

  set umdName(umdName) {
    if (umdName === null) {
      delete this._config.umdName;
    } else {
      this._config.umdName = umdName;
    }
  }

  strict() {
    if (!this._strict) {
      validatePackage(this.package);
      validateEntrypoint(this, false);
      this._strict = new StrictEntrypoint(this.path, this._contents, this.package);
    }

    return this._strict;
  }

}
class StrictEntrypoint extends Entrypoint {
  get main() {
    return is(this.json.main, is.string);
  }

  set main(path) {
    this.json = setFieldInOrder(this.json, "main", path);
  }

  get browser() {
    return is(this.json.browser, is.maybe(is.objectOf(is.string)));
  }

  set browser(option) {
    this.json = setFieldInOrder(this.json, "browser", option);
  }

  get reactNative() {
    return is(this.json["react-native"], is.maybe(is.objectOf(is.string)));
  }

  set reactNative(option) {
    this.json = setFieldInOrder(this.json, "react-native", option);
  }

  updater(json) {
    super.updater(json);
    validatePackage(this.package);
    validateEntrypoint(this, false);
  }

  strict() {
    return this;
  }

}

/*::
import {Project} from './project'
*/

class Package extends Item {
  constructor(...args) {
    super(...args);

    _defineProperty(this, "project", void 0);

    _defineProperty(this, "entrypoints", void 0);
  }

  get configEntrypoints() {
    return is(this._config.entrypoints, is.default(is.arrayOf(is.string), ["."]));
  }

  static async create(directory) {
    let filePath = path.join(directory, "package.json");
    let contents = await fs.readFile(filePath, "utf-8");
    let pkg = new Package(filePath, contents);
    let entrypointDirectories = await globby(pkg.configEntrypoints, {
      cwd: pkg.directory,
      onlyDirectories: true,
      absolute: true,
      expandDirectories: false
    });
    pkg.entrypoints = await Promise.all(entrypointDirectories.map(async directory => {
      let filename = path.join(directory, "package.json");
      let contents = null;

      try {
        contents = await fs.readFile(filename, "utf-8");
      } catch (e) {
        if (e.code !== "ENOENT") {
          throw e;
        }
      }

      return {
        filename,
        contents
      };
    })).then(descriptors => {
      let getPlainEntrypointContent = () => {
        let plainEntrypointObj = {
          main: getValidStringFieldContentForBuildType("main", pkg.name)
        };

        for (let descriptor of descriptors) {
          if (descriptor.contents !== null) {
            let parsed = JSON.parse(descriptor.contents);

            for (let field of ["module", "umd:main"]) {
              if (parsed[field] !== undefined) {
                plainEntrypointObj[field] = getValidStringFieldContentForBuildType(field, pkg.name);
              }
            }

            for (let field of ["browser", "react-native"]) {
              if (parsed[field] !== undefined) {
                plainEntrypointObj[field] = getValidObjectFieldContentForBuildType(field, pkg.name, plainEntrypointObj.module !== undefined);
              }
            }
          }
        }

        let plainEntrypointContents = JSON.stringify(plainEntrypointObj);

        getPlainEntrypointContent = () => plainEntrypointContents;

        return plainEntrypointContents;
      };

      return Promise.all(descriptors.map(async ({
        filename,
        contents
      }) => {
        if (contents === null) {
          let shouldCreateEntrypointPkgJson = await confirms.createEntrypointPkgJson({
            name: path.join(pkg.name, path.relative(pkg.directory, directory))
          });

          if (!shouldCreateEntrypointPkgJson) {
            throw new FatalError(errors.noEntrypointPkgJson, path.join(pkg.name, path.relative(pkg.directory, directory)));
          }

          contents = getPlainEntrypointContent();
          await fs.writeFile(filename, contents);
        }

        return new Entrypoint(filename, contents, pkg);
      }));
    });
    return pkg;
  }

  setFieldOnEntrypoints(field) {
    this.entrypoints.forEach(entrypoint => {
      switch (field) {
        case "main":
          {
            entrypoint.main = getValidStringFieldContentForBuildType("main", this.name);
            break;
          }

        case "module":
          {
            entrypoint.module = getValidStringFieldContentForBuildType("module", this.name);
            break;
          }

        case "browser":
          {
            entrypoint.browser = getValidObjectFieldContentForBuildType("browser", this.name, entrypoint.module !== null);
            break;
          }

        case "umdMain":
          {
            entrypoint.umdMain = getValidStringFieldContentForBuildType("umd:main", this.name);
            break;
          }

        case "reactNative":
          {
            entrypoint.reactNative = getValidObjectFieldContentForBuildType("react-native", this.name, entrypoint.module !== null);
            break;
          }
      }
    });
  }

  get name() {
    return is(this.json.name, is.string);
  }

  set name(name) {
    this.json.name = name;
  }

  get dependencies() {
    return is(this.json.dependencies, is.maybe(is.objectOf(is.string)));
  }

  get peerDependencies() {
    return is(this.json.peerDependencies, is.maybe(is.objectOf(is.string)));
  }

}

async function doInit(pkg) {
  pkg.entrypoints.forEach(entrypoint => {
    validateEntrypointSource(entrypoint);
  });

  if (pkg.entrypoints.every(entrypoint => isMainFieldValid(entrypoint))) {
    info(infos.validMainField, pkg.name);
  } else {
    let canWriteMainField = await confirms.writeMainField(pkg);

    if (!canWriteMainField) {
      throw new FatalError(errors.deniedWriteMainField, pkg.name);
    }

    pkg.setFieldOnEntrypoints("main");
  }

  let allEntrypointsAreMissingAModuleField = pkg.entrypoints.every(entrypoint => entrypoint.module === null);
  let someEntrypointsAreNotValid = pkg.entrypoints.some(entrypoint => !isModuleFieldValid(entrypoint));

  if (allEntrypointsAreMissingAModuleField || someEntrypointsAreNotValid) {
    let canWriteModuleField = await confirms.writeModuleField(pkg);

    if (canWriteModuleField) {
      pkg.setFieldOnEntrypoints("module");
    } else if (!allEntrypointsAreMissingAModuleField) {
      throw new FixableError(errors.invalidModuleField, pkg.name);
    }
  } else {
    info(infos.validModuleField, pkg.name);
  }

  let someEntrypointsHaveAMaybeInvalidUmdBuild = pkg.entrypoints.some(entrypoint => entrypoint.umdMain !== null);
  let someUmdMainFieldsAreInvalid = pkg.entrypoints.some(entrypoint => !isUmdMainFieldValid(entrypoint));
  let someUmdNamesAreNotSpecified = pkg.entrypoints.some(entrypoint => !isUmdNameSpecified(entrypoint));

  if (someEntrypointsHaveAMaybeInvalidUmdBuild && (someUmdMainFieldsAreInvalid || someUmdNamesAreNotSpecified)) {
    let shouldWriteUMDBuilds = await confirms.fixUmdBuild(pkg);

    if (shouldWriteUMDBuilds) {
      pkg.setFieldOnEntrypoints("umdMain");

      for (let entrypoint of pkg.entrypoints) {
        let umdName = await promptInput(inputs.getUmdName, entrypoint);
        entrypoint.umdName = umdName;
      }
    } else {
      throw new FixableError(errors.invalidUmdMainField, pkg.name);
    }
  }

  let someEntrypointsHaveABrowserField = pkg.entrypoints.some(entrypoint => entrypoint.browser !== null);
  let someEntrypointsHaveAnInvalidBrowserField = pkg.entrypoints.some(entrypoint => !isBrowserFieldValid(entrypoint));

  if (someEntrypointsHaveABrowserField && someEntrypointsHaveAnInvalidBrowserField) {
    let shouldFixBrowserField = await confirms.fixBrowserField(pkg);

    if (shouldFixBrowserField) {
      pkg.setFieldOnEntrypoints("browser");
    } else {
      throw new FixableError(errors.invalidBrowserField, pkg.name);
    }
  }

  await Promise.all(pkg.entrypoints.map(x => x.save()));
}

async function init(directory) {
  let project = await Project.create(directory);
  await Promise.all(project.packages.map(doInit));
  success("initialised project!");
}

const pattern = /require\((["'])@babel\/runtime\/helpers\/esm\/(\w+)["']\)/g;
function rewriteCjsRuntimeHelpers() {
  return {
    name: "rewrite-cjs-runtime-helpers",

    renderChunk(code, chunkInfo, {
      format
    }) {
      if (format !== "cjs") {
        return null;
      }

      return code.replace(pattern, (_, quote, path) => {
        return `require(${quote}@babel/runtime/helpers/${path}${quote})`;
      });
    }

  };
}

function getDevPath(cjsPath) {
  return cjsPath.replace(/\.js$/, ".dev.js");
}
function getProdPath(cjsPath) {
  return cjsPath.replace(/\.js$/, ".prod.js");
}

function flowAndNodeDevProdEntry(pkg) {
  return {
    name: "flow-and-prod-dev-entry",

    async resolveId(source, importer) {
      let resolved = await this.resolve(source, importer, {
        skipSelf: true
      });

      if (resolved.id.startsWith("\0") || resolved.id.startsWith(pkg.directory)) {
        return resolved;
      }

      throw new FatalError(`all relative imports in a package should only import modules inside of their package directory but "${path.relative(pkg.directory, importer)}" is importing "${source}"`, pkg.name);
    },

    // eslint-disable-next-line no-unused-vars
    async generateBundle(opts, bundle, something) {
      for (const n in bundle) {
        const file = bundle[n]; // $FlowFixMe

        let facadeModuleId = file.facadeModuleId;

        if (file.isAsset || !file.isEntry || facadeModuleId == null) {
          continue;
        }

        let mainFieldPath = file.fileName.replace(/\.prod\.js$/, ".js");
        let relativeToSource = path.relative(path.dirname(path.join(opts.dir, file.fileName)), facadeModuleId);
        let isEntrySourceTypeScript = /\.tsx?$/.test(facadeModuleId);

        if (!isEntrySourceTypeScript) {
          let flowMode = false;
          let source = await fs.readFile(facadeModuleId, "utf8");

          if (source.includes("@flow")) {
            flowMode = file.exports.includes("default") ? "all" : "named";
          }

          if (flowMode !== false) {
            let flowFileSource = flowTemplate(flowMode === "all", relativeToSource);
            let flowFileName = mainFieldPath + ".flow";
            bundle[flowFileName] = {
              fileName: flowFileName,
              isAsset: true,
              source: flowFileSource
            };
          }
        }

        let mainEntrySource = `'use strict';

if (${// tricking static analysis is fun...
        "process" + ".env.NODE_ENV"} === "production") {
  module.exports = require("./${path.basename(getProdPath(mainFieldPath))}");
} else {
  module.exports = require("./${path.basename(getDevPath(mainFieldPath))}");
}\n`;
        bundle[mainFieldPath] = {
          fileName: mainFieldPath,
          isAsset: true,
          source: mainEntrySource
        };
      }
    }

  };
}

function normalize(fileName) {
  return fileName.split("\\").join("/");
}
let createLanguageServiceHostClass = typescript => class LanguageServiceHost {
  constructor(parsedConfig, transformers) {
    this.parsedConfig = parsedConfig;
    this.transformers = transformers;
    this.cwd = process.cwd();
    this.snapshots = {};
    this.versions = {};
    this.fileNames = new Set(parsedConfig.fileNames);
  }

  reset() {
    this.snapshots = {};
    this.versions = {};
  }

  setLanguageService(service) {
    this.service = service;
  }

  getProjectVersion() {
    return 1;
  }

  setSnapshot(fileName, data) {
    fileName = normalize(fileName);
    const snapshot = typescript.ScriptSnapshot.fromString(data);
    this.snapshots[fileName] = snapshot;
    this.versions[fileName] = (this.versions[fileName] || 0) + 1;
    this.fileNames.add(fileName);
    return snapshot;
  }

  getScriptSnapshot(fileName) {
    fileName = normalize(fileName);
    if (this.snapshots[fileName]) return this.snapshots[fileName];

    if (fs$1.existsSync(fileName)) {
      this.snapshots[fileName] = typescript.ScriptSnapshot.fromString(typescript.sys.readFile(fileName));
      this.versions[fileName] = (this.versions[fileName] || 0) + 1;
      return this.snapshots[fileName];
    }

    return undefined;
  }

  getCurrentDirectory() {
    return this.cwd;
  }

  getScriptVersion(fileName) {
    fileName = normalize(fileName);
    return (this.versions[fileName] || 0).toString();
  }

  getScriptFileNames() {
    return Array.from(this.fileNames.values());
  }

  getCompilationSettings() {
    return this.parsedConfig.options;
  }

  getDefaultLibFileName(opts) {
    return typescript.getDefaultLibFilePath(opts);
  }

  useCaseSensitiveFileNames() {
    return typescript.sys.useCaseSensitiveFileNames;
  }

  readDirectory(path, extensions, exclude, include) {
    return typescript.sys.readDirectory(path, extensions, exclude, include);
  }

  readFile(path, encoding) {
    return typescript.sys.readFile(path, encoding);
  }

  fileExists(path) {
    return typescript.sys.fileExists(path);
  }

  getTypeRootsVersion() {
    return 0;
  }

  directoryExists(directoryName) {
    return typescript.sys.directoryExists(directoryName);
  }

  getDirectories(directoryName) {
    return typescript.sys.getDirectories(directoryName);
  }

  getCustomTransformers() {
    return undefined;
  }

};

let unsafeRequire$2 = require;

let weakMemoize = function (func) {
  // $FlowFixMe flow doesn't include all non-primitive types as allowed for weakmaps
  let cache = new WeakMap();
  return arg => {
    if (cache.has(arg)) {
      // $FlowFixMe
      return cache.get(arg);
    }

    let ret = func(arg);
    cache.set(arg, ret);
    return ret;
  };
};

function memoize(fn) {
  const cache = {};
  return arg => {
    if (cache[arg] === undefined) cache[arg] = fn(arg);
    return cache[arg];
  };
}

let getService = weakMemoize(typescript => memoize(async configFileName => {
  let configFileContents = await fs.readFile(configFileName, "utf8");
  const result = typescript.parseConfigFileTextToJson(configFileName, configFileContents);
  let thing = typescript.parseJsonConfigFileContent(result, typescript.sys, process.cwd(), undefined, configFileName);
  let LanguageServiceHostClass = createLanguageServiceHostClass(typescript);
  let servicesHost = new LanguageServiceHostClass(thing, []);
  let service = typescript.createLanguageService(servicesHost, typescript.createDocumentRegistry());
  servicesHost.setLanguageService(service);
  return {
    service,
    options: thing.options
  };
}));
async function createDeclarationCreator(dirname) {
  let typescript;

  try {
    typescript = unsafeRequire$2(resolveFrom(dirname, "typescript"));
  } catch (err) {
    if (err.code === "MODULE_NOT_FOUND") {
      throw new Error("an entrypoint source file ends with the .ts or .tsx extension but the typescript module could not be resolved from the project directory, please install it.");
    }

    throw err;
  }

  let configFileName = typescript.findConfigFile(dirname, typescript.sys.fileExists);

  if (!configFileName) {
    throw new Error("an entrypoint source file ends with the .ts extension but no TypeScript config exists, please create one.");
  }

  let {
    service,
    options
  } = await getService(typescript)(configFileName);
  let moduleResolutionCache = typescript.createModuleResolutionCache(dirname, x => x, options);
  return {
    getDeps: entrypoints => {
      let program = service.getProgram();

      if (!program) {
        throw new Error("This is an internal error, please open an issue if you see this: program not found");
      }

      let resolvedEntrypointPaths = entrypoints.map(x => {
        let {
          resolvedModule
        } = typescript.resolveModuleName(path.join(path.dirname(x), path.basename(x, path.extname(x))), dirname, options, typescript.sys, moduleResolutionCache);

        if (!resolvedModule) {
          throw new Error("This is an internal error, please open an issue if you see this: ts could not resolve module");
        }

        return resolvedModule.resolvedFileName;
      });
      let allDeps = new Set(resolvedEntrypointPaths);

      function searchDeps(deps) {
        for (let dep of deps) {
          let sourceFile = program.getSourceFile(dep);

          if (!sourceFile) {
            throw new Error("This is an internal error, please open an issue if you see this: source file not found");
          }

          let internalDeps = new Set();

          for (let _ref of sourceFile.imports) {
            let {
              text
            } = _ref;
            let {
              resolvedModule
            } = typescript.resolveModuleName(text, dep, options, typescript.sys, moduleResolutionCache);

            if (resolvedModule) {
              if (!allDeps.has(resolvedModule.resolvedFileName) && !resolvedModule.isExternalLibraryImport && resolvedModule.resolvedFileName.includes(dirname)) {
                internalDeps.add(resolvedModule.resolvedFileName);
                allDeps.add(resolvedModule.resolvedFileName);
              }
            }
          }

          searchDeps(internalDeps);
        }
      }

      searchDeps(new Set(resolvedEntrypointPaths));
      return allDeps;
    },
    getDeclarationFile: async filename => {
      if (filename.endsWith(".d.ts")) {
        return {
          name: filename.replace(dirname, path.join(dirname, "dist", "declarations")),
          content: await fs.readFile(filename, "utf8")
        };
      }

      let output = service.getEmitOutput(filename, true);
      return {
        name: output.outputFiles[0].name.replace(dirname, path.join(dirname, "dist", "declarations")),
        content: output.outputFiles[0].text
      };
    }
  };
}

let isTsPath = source => /\.tsx?/.test(source);

function typescriptDeclarations(pkg) {
  if (!pkg.entrypoints.some(({
    source
  }) => isTsPath(source))) {
    return {
      name: "typescript-declarations"
    };
  }

  return {
    name: "typescript-declarations",

    // eslint-disable-next-line no-unused-vars
    async generateBundle(opts, bundle, something) {
      let creator = await createDeclarationCreator(pkg.directory);
      let srcFilenameToDtsFilenameMap = new Map();
      let deps = creator.getDeps(pkg.entrypoints.map(x => x.source));
      await Promise.all([...deps].map(async dep => {
        let {
          name,
          content
        } = await creator.getDeclarationFile(dep);
        srcFilenameToDtsFilenameMap.set(dep, name);
        bundle[name] = {
          fileName: name,
          isAsset: true,
          source: content
        };
      }));

      for (const n in bundle) {
        const file = bundle[n]; // $FlowFixMe

        let facadeModuleId = file.facadeModuleId;

        if (file.isAsset || !file.isEntry || facadeModuleId == null) {
          continue;
        }

        let dtsFilename = srcFilenameToDtsFilenameMap.get(facadeModuleId);

        if (!dtsFilename) {
          throw new FatalError(`no .d.ts file was found for the entrypoint at ${facadeModuleId}`, pkg.name);
        }

        let mainFieldPath = file.fileName.replace(/\.prod\.js$/, "");
        let relativeToSource = path.relative(path.dirname(path.join(opts.dir, file.fileName)), dtsFilename.replace(/\.d\.ts$/, ""));

        if (!relativeToSource.startsWith(".")) {
          relativeToSource = `./${relativeToSource}`;
        }

        let tsFileSource = tsTemplate(file.exports.includes("default"), relativeToSource);
        let tsFileName = mainFieldPath + ".d.ts";
        bundle[tsFileName] = {
          fileName: tsFileName,
          isAsset: true,
          source: tsFileSource
        };
      }
    }

  };
}

let shouldUseWorker = process.env.DISABLE_PRECONSTRUCT_WORKER !== "true";
let worker;
let unsafeRequire$3 = require;
function createWorker() {
  if (shouldUseWorker) {
    worker = new Worker(require.resolve("preconstruct/worker"));
  } else {
    worker = unsafeRequire$3("preconstruct/worker");
  }
}
function destroyWorker() {
  if (worker !== undefined && shouldUseWorker) {
    worker.end();
    worker = undefined;
  }
}
function getWorker() {
  if (worker === undefined) {
    throw new Error("worker not defined");
  }

  return worker;
}

const regExpCharactersRegExp = /[\\^$.*+?()[\]{}|]/g;

const escapeRegExpCharacters = str => str.replace(regExpCharactersRegExp, "\\$&");

const unpackOptions = (_ref = {}) => {
  let {
    extensions = babel.DEFAULT_EXTENSIONS,
    // rollup uses sourcemap, babel uses sourceMaps
    // just normalize them here so people don't have to worry about it
    sourcemap = true,
    sourcemaps = true,
    sourceMap = true,
    sourceMaps = true
  } = _ref,
      rest = _objectWithoutProperties(_ref, ["extensions", "sourcemap", "sourcemaps", "sourceMap", "sourceMaps"]);

  return _objectSpread({
    extensions,
    plugins: [],
    sourceMaps: sourcemap && sourcemaps && sourceMap && sourceMaps
  }, rest, {
    caller: _objectSpread({
      name: "rollup-plugin-babel",
      supportsStaticESM: true,
      supportsDynamicImport: true
    }, rest.caller)
  });
};

const lru = new QuickLRU({
  maxSize: 1000
});
let hasher;
let hasherPromise = initHasher().then(({
  h64
}) => {
  hasher = h64;
});

let rollupPluginBabel = pluginOptions => {
  const _unpackOptions = unpackOptions(pluginOptions),
        {
    exclude,
    extensions,
    include
  } = _unpackOptions,
        babelOptions = _objectWithoutProperties(_unpackOptions, ["exclude", "extensions", "include"]);

  const extensionRegExp = new RegExp(`(${extensions.map(escapeRegExpCharacters).join("|")})$`);
  const includeExcludeFilter = rollupPluginutils.createFilter(include, exclude);

  const filter = id => extensionRegExp.test(id) && includeExcludeFilter(id);

  return {
    name: "babel",

    transform(code, filename) {
      if (!filter(filename)) return Promise.resolve(null);
      let hash = hasher(filename);

      if (lru.has(hash)) {
        let cachedResult = lru.get(hash);

        if (code === cachedResult.code) {
          return cachedResult.promise;
        }
      }

      let options = JSON.stringify(_objectSpread({}, babelOptions, {
        filename
      }));
      let promise = getWorker().transformBabel(code, options);
      lru.set(hash, {
        code,
        promise
      });
      return promise;
    }

  };
};

function terser(userOptions = {}) {
  if (userOptions.sourceMap != null) {
    throw Error("sourceMap option is removed, use sourcemap instead");
  }

  return {
    name: "terser",

    renderChunk(code, chunk, outputOptions) {
      // TODO rewrite with object spread after node6 drop
      const normalizedOptions = _objectSpread({}, userOptions, {
        sourceMap: userOptions.sourcemap !== false,
        module: outputOptions.format === "es" || outputOptions.format === "esm"
      });

      if (normalizedOptions.hasOwnProperty("sourcemap")) {
        delete normalizedOptions["sourcemap"];
      }

      const result = getWorker().transformTerser(code, JSON.stringify(normalizedOptions)).catch(error => {
        const {
          message,
          line,
          col: column
        } = error;
        console.error(codeFrame.codeFrameColumns(code, {
          start: {
            line,
            column
          }
        }, {
          message
        }));
        throw error;
      });
      return result;
    }

  };
}

const makeExternalPredicate = externalArr => {
  if (externalArr.length === 0) {
    return () => false;
  }

  const pattern = new RegExp(`^(${externalArr.join("|")})($|/)`);
  return id => pattern.test(id);
};

let rollup = rollup$1.rollup;
function toUnsafeRollupConfig(config) {
  return config;
}
let getRollupConfig = (pkg, entrypoints, aliases, type) => {
  let external = [];

  if (pkg.peerDependencies) {
    external.push(...Object.keys(pkg.peerDependencies));
  }

  if (pkg.dependencies && type !== "umd") {
    external.push(...Object.keys(pkg.dependencies));
  }

  if (type === "node-dev" || type === "node-prod") {
    external.push(...builtInModules);
  }

  let rollupAliases = {};
  Object.keys(aliases).forEach(key => {
    try {
      rollupAliases[key] = resolveFrom(pkg.directory, aliases[key]);
    } catch (err) {
      if (err.code !== "MODULE_NOT_FOUND") {
        throw err;
      }
    }
  });
  let input = {};
  entrypoints.forEach(entrypoint => {
    input[path.relative(pkg.directory, path.join(entrypoint.directory, "dist", getNameForDist(pkg.name)))] = entrypoint.strict().source;
  });
  const config = {
    input,
    external: makeExternalPredicate(external),
    onwarn: warning => {
      switch (warning.code) {
        case "EMPTY_BUNDLE":
        case "CIRCULAR_DEPENDENCY":
        case "UNUSED_EXTERNAL_IMPORT":
          {
            break;
          }

        case "UNRESOLVED_IMPORT":
          {
            if (/^@babel\/runtime\/helpers\//.test(warning.source)) {
              throw (async () => {
                let shouldInstallBabelRuntime = await confirms.shouldInstallBabelRuntime(pkg);

                if (shouldInstallBabelRuntime) {
                  await limit(() => installPackages({
                    packages: ["@babel/runtime"],
                    cwd: pkg.directory,
                    installPeers: false,
                    packageManager: pkg.project.isBolt ? "bolt" : undefined
                  }));
                  await pkg.refresh();
                } else {
                  throw new FatalError(`@babel/runtime should be in dependencies of ${pkg.name}`, pkg.name);
                }
              })();
            }

            if (!warning.source.startsWith(".")) {
              throw new FatalError(`"${warning.source}" is imported by "${path.relative(pkg.directory, warning.importer)}" but it is not specified in dependencies or peerDependencies`, pkg.name);
            }
          }

        default:
          {
            throw new FatalError(`There was an error compiling ${pkg.name}: ${chalk.red(warning.toString())}`, pkg.name);
          }
      }
    },
    plugins: [type === "node-prod" && flowAndNodeDevProdEntry(pkg), type === "node-prod" && typescriptDeclarations(pkg), rollupPluginBabel({
      cwd: pkg.project.directory,
      plugins: [[require.resolve("@babel/plugin-transform-runtime"), {
        useESModules: true
      }]],
      extensions: EXTENSIONS
    }), type === "umd" && cjs({
      include: ["**/node_modules/**", "node_modules/**"]
    }), (type === "browser" || type === "umd") && replace({
      ["typeof " + "document"]: JSON.stringify("object"),
      ["typeof " + "window"]: JSON.stringify("object")
    }), rewriteCjsRuntimeHelpers(), json({
      namedExports: false
    }), type === "umd" && alias(rollupAliases), resolve$1({
      extensions: EXTENSIONS,
      customResolveOptions: {
        moduleDirectory: type === "umd" ? "node_modules" : []
      }
    }), (type === "umd" || type === "node-prod") && replace({
      // tricking static analysis is fun...
      ["process" + ".env.NODE_ENV"]: '"production"'
    }), type === "umd" && terser(), type === "node-prod" && terser({
      mangle: false,
      output: {
        beautify: true,
        indent_level: 2
      }
    })].filter(Boolean)
  };
  return config;
};

function getAliases(project, getKey = x => x) {
  let aliases = {};
  project.packages.forEach(pkg => {
    pkg.entrypoints.map(x => x.strict()).forEach(entrypoint => {
      aliases[getKey(entrypoint.name)] = path.join(pkg.name, path.relative(entrypoint.directory, entrypoint.source));
    });
  });
  return aliases;
}

function getGlobals(pkg) {
  let stuff = [];

  if (pkg.peerDependencies) {
    stuff.push(...Object.keys(pkg.peerDependencies));
  }

  if (pkg.dependencies) {
    stuff.push(...Object.keys(pkg.dependencies));
  }

  if (stuff.length === 0) {
    return {};
  }

  let peerDeps = pkg.peerDependencies ? Object.keys(pkg.peerDependencies) : [];
  return peerDeps.reduce((obj, pkgName) => {
    obj[pkgName] = pkg.project.global(pkgName);
    return obj;
  }, {});
}

function getRollupConfigs(pkg, aliases) {
  let configs = [];
  let strictEntrypoints = pkg.entrypoints.map(x => x.strict());
  let hasModuleField = strictEntrypoints[0].module !== null;
  configs.push({
    config: getRollupConfig(pkg, strictEntrypoints, aliases, "node-dev"),
    outputs: [{
      format: "cjs",
      entryFileNames: "[name].cjs.dev.js",
      chunkFileNames: "dist/[name]-[hash].cjs.dev.js",
      dir: pkg.directory,
      exports: "named"
    }, ...(hasModuleField ? [{
      format: "es",
      entryFileNames: "[name].esm.js",
      chunkFileNames: "dist/[name]-[hash].esm.js",
      dir: pkg.directory
    }] : [])]
  });
  configs.push({
    config: getRollupConfig(pkg, strictEntrypoints, aliases, "node-prod"),
    outputs: [{
      format: "cjs",
      entryFileNames: "[name].cjs.prod.js",
      chunkFileNames: "dist/[name]-[hash].cjs.prod.js",
      dir: pkg.directory,
      exports: "named"
    }]
  }); // umd builds are a bit special
  // we don't guarantee that shared modules are shared across umd builds
  // this is just like dependencies, they're bundled into the umd build

  if (strictEntrypoints[0].umdMain !== null) pkg.entrypoints.map(x => x.strict()).forEach(entrypoint => {
    let umdName = is(entrypoint._config.umdName, is.string);
    is(entrypoint.umdMain, is.string);
    configs.push({
      config: getRollupConfig(pkg, [entrypoint], aliases, "umd"),
      outputs: [{
        format: "umd",
        sourcemap: true,
        entryFileNames: "[name].umd.min.js",
        name: umdName,
        dir: pkg.directory,
        globals: getGlobals(pkg)
      }]
    });
  });
  let hasBrowserField = strictEntrypoints[0].browser !== null;

  if (hasBrowserField) {
    configs.push({
      config: getRollupConfig(pkg, strictEntrypoints, aliases, "browser"),
      outputs: [{
        format: "cjs",
        entryFileNames: "[name].browser.cjs.js",
        chunkFileNames: "dist/[name]-[hash].browser.cjs.js",
        dir: pkg.directory,
        exports: "named"
      }, ...(hasModuleField ? [{
        format: "es",
        entryFileNames: "[name].browser.esm.js",
        chunkFileNames: "dist/[name]-[hash].browser.esm.js",
        dir: pkg.directory
      }] : [])]
    });
  }

  if (strictEntrypoints[0].reactNative !== null) {
    configs.push({
      config: getRollupConfig(pkg, strictEntrypoints, aliases, "react-native"),
      outputs: [{
        format: "cjs",
        entryFileNames: "[name].native.cjs.js",
        chunkFileNames: "dist/[name]-[hash].native.cjs.js",
        dir: pkg.directory,
        exports: "named"
      }, ...(hasModuleField ? [{
        format: "es",
        entryFileNames: "[name].native.esm.js",
        chunkFileNames: "dist/[name]-[hash].native.esm.js",
        dir: pkg.directory
      }] : [])]
    });
  }

  return configs;
}

let browserPattern = /typeof\s+(window|document)/;

async function buildPackage(pkg, aliases) {
  let configs = getRollupConfigs(pkg, aliases);
  await Promise.all([fs.remove(path.join(pkg.directory, "dist")), ...pkg.entrypoints.map(entrypoint => {
    return fs.remove(path.join(entrypoint.directory, "dist"));
  })]); // TODO: Fix all this stuff to work with multiple entrypoints

  let hasCheckedBrowser = pkg.entrypoints[0].browser !== null;
  await Promise.all(configs.map(async ({
    config,
    outputs
  }) => {
    // $FlowFixMe this is not a problem with flow, i did something wrong but it's not worth fixing right now
    let bundle = await rollup(config);
    let result = await Promise.all(outputs.map(outputConfig => {
      return bundle.write(outputConfig);
    }));
    const nodeDevOutput = result[0].output;

    if (!hasCheckedBrowser) {
      let allCode = nodeDevOutput.map(({
        code
      }) => code).join("\n");
      hasCheckedBrowser = true;

      if (browserPattern.test(allCode)) {
        throw (async () => {
          let shouldAddBrowserField = await confirms.addBrowserField(pkg);

          if (shouldAddBrowserField) {
            pkg.setFieldOnEntrypoints("browser");
            await Promise.all(pkg.entrypoints.map(x => x.save()));
          } else {
            throw new FatalError(errors.deniedWriteBrowserField, pkg.name);
          }
        })();
      }
    }
  }));
}

async function retryableBuild(pkg, aliases) {
  try {
    await buildPackage(pkg, aliases);
  } catch (err) {
    if (err instanceof Promise) {
      await err;
      await retryableBuild(pkg, aliases);
      return;
    }

    if (err instanceof FatalError) {
      throw err;
    }

    throw new UnexpectedBuildError(err, pkg.name);
  }
}

async function build(directory) {
  // do more stuff with checking whether the repo is using yarn workspaces or bolt
  try {
    createWorker();
    await hasherPromise;
    let project = await Project.create(directory);
    info("building bundles!");
    let aliases = getAliases(project);
    await Promise.all(project.packages.map(pkg => retryableBuild(pkg, aliases)));
    success("built bundles!");
  } finally {
    destroyWorker();
  }
}

function relativePath(id) {
  return path.relative(process.cwd(), id);
}

async function watchPackage(pkg, aliases) {
  const _configs = getRollupConfigs(pkg, aliases);

  await fs.remove(path.join(pkg.directory, "dist"));

  let configs = _configs.map(config => {
    return _objectSpread({}, toUnsafeRollupConfig(config.config), {
      output: config.outputs
    });
  });

  const watcher = rollup$1.watch(configs);
  let reject;
  let errPromise = new Promise((resolve, _reject) => {
    reject = _reject;
  });
  let startResolve;
  let startPromise = new Promise(resolve => {
    startResolve = resolve;
  });
  watcher.on("event", event => {
    // https://github.com/rollup/rollup/blob/aed954e4e6e8beabd47268916ff0955fbb20682d/bin/src/run/watch.ts#L71-L115
    switch (event.code) {
      case "FATAL":
        {
          reject(event.error);
          break;
        }

      case "ERROR":
        {
          reject(event.error);
          break;
        }

      case "START":
        startResolve();
        break;

      case "BUNDLE_START":
        {
          info(chalk.cyan(`bundles ${chalk.bold(typeof event.input === "string" ? relativePath(event.input) : Array.isArray(event.input) ? event.input.map(relativePath).join(", ") : Object.values(event.input) // $FlowFixMe
          .map(relativePath).join(", "))} → ${chalk.bold(event.output.map(relativePath).join(", "))}...`), pkg.name);
          break;
        }

      case "BUNDLE_END":
        {
          info(chalk.green(`created ${chalk.bold(event.output.map(relativePath).join(", "))} in ${chalk.bold(ms(event.duration))}`), pkg.name);
          break;
        }

      case "END":
        {
          info("waiting for changes...", pkg.name);
        }
    }
  });
  return {
    error: errPromise,
    start: startPromise
  };
}

async function retryableWatch(pkg, aliases, getPromises, depth) {
  try {
    let {
      error,
      start
    } = await watchPackage(pkg, aliases);

    if (depth === 0) {
      getPromises({
        start
      });
    }

    await error;
  } catch (err) {
    if (err instanceof Promise) {
      await err;
      await retryableWatch(pkg, aliases, getPromises, depth + 1);
      return;
    }

    throw err;
  }
}

async function build$1(directory) {
  createWorker();
  let project = await Project.create(directory); // do more stuff with checking whether the repo is using yarn workspaces or bolt

  let aliases = getAliases(project);
  let startCount = 0;
  await Promise.all(project.packages.map(pkg => retryableWatch(pkg, aliases, async ({
    start
  }) => {
    await start;
    startCount++;

    if (startCount === project.packages.length) {
      success(successes.startedWatching);
    }
  }, 0)));
}

async function fixEntrypoint(entrypoint) {
  validateEntrypointSource(entrypoint);

  if (entrypoint.umdMain !== null && !isUmdNameSpecified(entrypoint)) {
    let umdName = await promptInput(inputs.getUmdName, entrypoint);
    entrypoint.umdName = umdName;
    await entrypoint.save();
    return true;
  }

  return false;
}

async function fix(directory) {
  let {
    packages
  } = await Project.create(directory);
  let didModify = (await Promise.all(packages.map(async pkg => {
    let didModifyInPkgFix = await fixPackage(pkg);
    let didModifyInEntrypointsFix = (await Promise.all(pkg.entrypoints.map(fixEntrypoint))).some(x => x);
    return didModifyInPkgFix || didModifyInEntrypointsFix;
  }))).some(x => x);
  success(didModify ? "fixed project!" : "project already valid!");
}

let tsExtensionPattern = /tsx?$/;

function cjsOnlyReexportTemplate(pathToSource) {
  return `// 👋 hey!!
// you might be reading this and seeing .esm in the filename
// and being confused why there is commonjs below this filename
// DON'T WORRY!
// this is intentional
// it's only commonjs with \`preconstruct dev\`
// when you run \`preconstruct build\`, it will be ESM
// why is it commonjs?
// we need to re-export every export from the source file
// but we can't do that with ESM without knowing what the exports are (because default exports aren't included in export/import *)
// and they could change after running \`preconstruct dev\` so we can't look at the file without forcing people to
// run preconstruct dev again which wouldn't be ideal
// this solution could change but for now, it's working

module.exports = require(${JSON.stringify(pathToSource)})
`;
}

async function getTypeSystem(entrypoint) {
  let content = await fs.readFile(entrypoint.source, "utf8");

  if (tsExtensionPattern.test(entrypoint.source)) {
    return ["typescript", content];
  } // TODO: maybe we should write the flow symlink even if there isn't an 
  // comment so that if someone adds an  comment they don't have to run preconstruct dev again


  if (content.includes("@flow")) {
    return ["flow", content];
  }

  return [null, content];
}

async function writeFlowFile(typeSystemPromise, entrypoint) {
  let [typeSystem, content] = await typeSystemPromise;
  if (typeSystem === null) return;
  let cjsDistPath = path.join(entrypoint.directory, entrypoint.main);

  if (typeSystem === "flow") {
    await fs.symlink(entrypoint.source, cjsDistPath + ".flow");
  }

  if (typeSystem === "typescript") {
    let ast = await babel.parseAsync(content, {
      filename: entrypoint.source,
      sourceType: "module",
      cwd: entrypoint.package.project.directory
    });
    let hasDefaultExport = false;

    for (let statement of ast.program.body) {
      if (statement.type === "ExportDefaultDeclaration" || statement.type === "ExportNamedDeclaration" && statement.specifiers.some(specifier => specifier.type === "ExportSpecifier" && specifier.exported.name === "default")) {
        hasDefaultExport = true;
        break;
      }
    }

    await fs.writeFile(cjsDistPath + ".ts", tsTemplate(hasDefaultExport, path.relative(path.dirname(cjsDistPath), entrypoint.source).replace(/\.tsx?$/, "")));
  }
}

async function dev(projectDir) {
  let project = await Project.create(projectDir);
  project.packages.forEach(({
    entrypoints
  }) => entrypoints.forEach(x => x.strict()));
  info("project is valid!");
  let promises = [];
  await Promise.all(project.packages.map(pkg => {
    return Promise.all(pkg.entrypoints.map(async _entrypoint => {
      let entrypoint = _entrypoint.strict();

      let typeSystemPromise = getTypeSystem(entrypoint);
      await fs.remove(path.join(entrypoint.directory, "dist"));
      await fs.ensureDir(path.join(entrypoint.directory, "dist"));
      let promises = [writeFlowFile(typeSystemPromise, entrypoint), fs.writeFile(path.join(entrypoint.directory, entrypoint.main), `"use strict";

let unregister = require(${JSON.stringify(require.resolve("@preconstruct/hook"))}).___internalHook(${JSON.stringify(project.directory)});

module.exports = require(${JSON.stringify(entrypoint.source)});

unregister();
`)];

      if (entrypoint.module) {
        promises.push(fs.writeFile(path.join(entrypoint.directory, entrypoint.module), cjsOnlyReexportTemplate(entrypoint.source)));
      }

      let browserField = entrypoint.browser;

      if (browserField) {
        for (let key of Object.keys(browserField)) {
          promises.push(fs.writeFile(path.join(entrypoint.directory, browserField[key]), cjsOnlyReexportTemplate(entrypoint.source)));
        }
      }

      let rnField = entrypoint.reactNative;

      if (rnField) {
        for (let key of Object.keys(rnField)) {
          promises.push(fs.writeFile(path.join(entrypoint.directory, rnField[key]), cjsOnlyReexportTemplate(entrypoint.source)));
        }
      }

      return Promise.all(promises);
    }));
  }));
  await Promise.all(promises);
  success("created links!");
}

// $FlowFixMe

process["e" + "nv"].NODE_ENV = "production";
let {
  input
} = meow(`
Usage
  $ preconstruct [command]
Commands
  init         initialise a project
  build        build the project
  watch        start a watch process to build the project
  validate     validate the project
  fix          infer as much information as possible and fix the project
  dev          create links so entrypoints can be imported

`, {});
let errors$1 = {
  commandNotFound: "Command not found"
};

class CommandNotFoundError extends Error {}

(async () => {
  if (input.length === 1) {
    switch (input[0]) {
      case "init":
        {
          await init(process.cwd());
          return;
        }

      case "validate":
        {
          await validate(process.cwd());
          return;
        }

      case "build":
        {
          await build(process.cwd());
          return;
        }

      case "watch":
        {
          await build$1(process.cwd());
          return;
        }

      case "fix":
        {
          await fix(process.cwd());
          return;
        }

      case "dev":
        {
          await dev(process.cwd());
          return;
        }

      default:
        {
          throw new CommandNotFoundError();
        }
    }
  } else {
    throw new CommandNotFoundError();
  }
})().catch(err => {
  if (err instanceof FixableError) {
    error(err.message, err.scope);
    info("The above error can be fixed automatically by running preconstruct fix", err.item);
  } else if (err instanceof FatalError) {
    error(err.message, err.scope);
  } else if (err instanceof CommandNotFoundError) {
    error(errors$1.commandNotFound);
  } else if (err instanceof UnexpectedBuildError) {
    error(err, err.scope);
  } else {
    error(err);
  }

  process.exit(1);
});