vash.packer.js

/*
 * vash.packer.js - Javascript node compressor
 * http://github.com/G33kLabs/vash.packer.js
 */

/*global define: false*/

var htmlPacker = require('html-minifier').minify,
	jsParser = require("uglify-js").parser,
	jsPacker = require("uglify-js").uglify,
	cssPacker = require('uglifycss') ;

(function (exports) {
	if (typeof module !== "undefined" && typeof module.exports !== "undefined") {
		module.exports = exports;
	} else {
		window.packer = exports;
	}
}(function () {
  	var exports = {};

	/* Pack CSS content */
	exports.packCSS = function(content) {
		return cssPacker.processString(content) ;
	} ;

	/* Pack HTML content  */
	exports.packHTML = function(content) {
		return htmlPacker(content, { removeComments: true, collapseWhitespace: false, removeEmptyAttributes: true }) ;
	} ;

	/* Pack JS content */
	exports.packJS = function(content, itemPath) {

		/* Try to parse content */
		try {
			var ast = jsParser.parse(content); /* parse code and get the initial AST */
			ast = jsPacker.ast_mangle(ast); /* get a new AST with mangled names */
			ast = jsPacker.ast_squeeze(ast); /* get an AST with compression optimizations */
		} 

		/* Report error */
		catch(e) { 	
			
			/* Set a compile error flag */
			this.compileError = true ;

			/* Output error */
			console.log('-------------------------') ;
			if ( itemPath ) {
				console.log(" /* Path : "+itemPath+" */ ");
			}
			console.log(content.split("\n").slice(e.line-10, e.line-1).join("\n")) ;
			console.log(" /******** "+e.line+" >> "+e.message+" ********/") ;
			console.log((content.split("\n").slice(e.line-1, e.line).join("\n"))) ;
			console.log(" /***********************************************************/") ;
			console.log(content.split("\n").slice(e.line, e.line+10).join("\n")) ;
			
			/* Say something (designed for OSX) */
			try {
				require('child_process').exec('say -v Alex -r 200 "Houston ? Yeah a problem in code..."') ;	
			} catch(e) {}
		} 

		return jsPacker.gen_code(ast); // compressed code here
		
	} ;

  	return exports;
}()));