asset-rack/compiled/util.js

// Generated by CoffeeScript 1.4.0
(function() {
  var Buffer, EventEmitter, async, fs, pathutil, _,
    __hasProp = {}.hasOwnProperty,
    __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };

  EventEmitter = require('events').EventEmitter;

  Buffer = require('buffer').Buffer;

  _ = require('underscore');

  fs = require('fs');

  pathutil = require('path');

  async = require('async');

  exports.BufferStream = (function(_super) {

    __extends(BufferStream, _super);

    function BufferStream(buffer) {
      this.data = new Buffer(buffer);
      BufferStream.__super__.constructor.call(this);
    }

    BufferStream.prototype.pipe = function(destination) {
      destination.write(this.data);
      destination.end();
      this.emit('close');
      return this.emit('end');
    };

    BufferStream.prototype.pause = function() {};

    BufferStream.prototype.resume = function() {};

    BufferStream.prototype.destroy = function() {};

    BufferStream.prototype.readable = true;

    return BufferStream;

  })(EventEmitter);

  exports.extend = function(object) {
    var Asset, key, value;
    Asset = (function(_super) {

      __extends(Asset, _super);

      function Asset() {
        return Asset.__super__.constructor.apply(this, arguments);
      }

      return Asset;

    })(this);
    for (key in object) {
      value = object[key];
      Asset.prototype[key] = value;
    }
    return Asset;
  };

  exports.walk = function(root, options, iterator, cb) {
    var filter, ignoreFolders, readdir;
    if (_.isFunction(options)) {
      cb = iterator;
      iterator = options;
      options = {};
    }
    if (cb == null) {
      cb = function() {};
    }
    ignoreFolders = options.ignoreFolders || false;
    filter = options.filter || function() {
      return true;
    };
    if (_.isString(filter)) {
      filter = (function(ext) {
        ext = ext[0] === '.' ? ext : '.' + ext;
        return function(file) {
          return file.ext === ext;
        };
      })(filter);
    }
    readdir = function(dir, cb) {
      return fs.readdir(dir, function(err, files) {
        var iter;
        if (err != null) {
          return cb(err);
        }
        iter = function(file, done) {
          var path;
          path = pathutil.join(dir, file);
          return fs.stat(path, function(err, stats) {
            var fobj, skip;
            if (err != null) {
              return done(err);
            }
            fobj = {
              name: pathutil.basename(file),
              namenoext: pathutil.basename(file, pathutil.extname(file)),
              relpath: pathutil.relative(root, path),
              path: path,
              ext: pathutil.extname(file),
              stats: stats
            };
            skip = (ignoreFolders && stats.isDirectory()) || !filter(fobj);
            if (stats.isDirectory()) {
              return readdir(path, function(err) {
                if (err != null) {
                  return done(err);
                }
                if (skip) {
                  return done();
                } else {
                  return iterator(fobj, done);
                }
              });
            } else {
              if (skip) {
                return done();
              } else {
                return iterator(fobj, done);
              }
            }
          });
        };
        return async.forEach(files, iter, cb);
      });
    };
    return readdir(root, cb);
  };

}).call(this);