SOURCE CODE: Uize.Build.FileBuilders.CompressedCssFiles (view docs)

/*______________
|       ______  |   U I Z E    J A V A S C R I P T    F R A M E W O R K
|     /      /  |   ---------------------------------------------------
|    /    O /   |    MODULE : Uize.Build.FileBuilders.CompressedCssFiles Package
|   /    / /    |
|  /    / /  /| |    ONLINE : http://www.uize.com
| /____/ /__/_| | COPYRIGHT : (c)2013-2016 UIZE
|          /___ |   LICENSE : Available under MIT License or GNU General Public License
|_______________|             http://www.uize.com/license.html
*/

/* Module Meta Data
  type: Package
  importance: 1
  codeCompleteness: 100
  docCompleteness: 30
*/

/*?
  Introduction
    The =Uize.Build.FileBuilders.CompressedCssFiles= module defines a file builder for the compressed versions of the CSS files of a site.

    *DEVELOPERS:* `Chris van Rensburg`

    Functions defined in the file builder are called as instance methods on an instance of a subclass of the =Uize.Services.FileBuilderAdapter= class, so the functions can access instance methods implemented in this class.
*/

Uize.module ({
  name:'Uize.Build.FileBuilders.CompressedCssFiles',
  required:'Uize.Str.Has',
  builder:function () {
    'use strict';

    var
      _cssFileExtension = '.css',
      _compressedCssFileExtension = '.min' + _cssFileExtension
    ;
    return Uize.package ({
      description:'Compressed CSS files',
      urlMatcher:function (_urlParts) {
        return (
          _urlParts.fileType == 'css' &&
          this.isTempUrl (_urlParts.folderPath) &&
          Uize.Str.Has.hasSuffix (_urlParts.file,_compressedCssFileExtension)
        );
      },
      builderInputs:function (_urlParts) {
        return {
          cssFile:
            this.builtUrlFromTempUrl (_urlParts.pathname).slice (0,-_compressedCssFileExtension.length) +
            _cssFileExtension
        };
      },
      builder:function (_inputs) {
        return this.readFile ({path:_inputs.cssFile}).replace(/\/\*.*?\*\//g, '').replace(/[\s\n\r]+/g, ' ');
      }
    });
  }
});