gulp-order/lib/index.js

The gulp plugin `gulp-order` allows you to reorder a stream of files using the same syntax as of `gulp.src`.

// Generated by CoffeeScript 2.3.1
(function() {
  var Minimatch, path, sort, through;

  through = require("through");

  ({Minimatch} = require("minimatch"));

  path = require("path");

  sort = require("stable");

  module.exports = function(patterns = [], options = {}) {
    var files, matchers, onEnd, onFile, rank, relative;
    files = [];
    matchers = patterns.map(function(pattern) {
      if (pattern.indexOf("./") === 0) {
        throw new Error("Don't start patterns with `./` - they will never match. Just leave out `./`");
      }
      return Minimatch(pattern);
    });
    onFile = function(file) {
      return files.push(file);
    };
    relative = function(file) {
      if (options.base != null) {
        return path.relative(options.base, file.path);
      } else {
        return file.relative;
      }
    };
    rank = function(s) {
      var i, index, len, matcher;
      for (index = i = 0, len = matchers.length; i < len; index = ++i) {
        matcher = matchers[index];
        if (matcher.match(s)) {
          return index;
        }
      }
      return matchers.length;
    };
    onEnd = function() {
      sort.inplace(files, function(a, b) {
        var aIndex, bIndex;
        aIndex = rank(relative(a));
        bIndex = rank(relative(b));
        if (aIndex === bIndex) {
          return String(relative(a)).localeCompare(relative(b));
        } else {
          return aIndex - bIndex;
        }
      });
      files.forEach((file) => {
        return this.emit("data", file);
      });
      return this.emit("end");
    };
    return through(onFile, onEnd);
  };

}).call(this);