Added compress option to node-js tech

techs/node-js.js

@@ -1,5 +1,6 @@
 var EOL = require('os').EOL,
  browserify = require('browserify'),
+ minify = require('uglify-js').minify,
  promisify = require('vow-node').promisify;
 
 /**
@@ -21,6 +22,9 @@ var EOL = require('os').EOL,
  * in the assembly.
  * @param {Boolean} [options.devMode=true] Drops cache for `require` of source modules.
  * @param {Boolean} [options.bundled=false] Builds CommonJS files in one file.
+ * @param {Boolean} [options.compress=false] Minifies and compress JS code.
+ * Works if `bundled` option is enabled.
+
  *
  * @example
  * // Code in a file system before build:
@@ -58,6 +62,7 @@ module.exports = require('enb/lib/build-flow').create()
  .useFileList(['vanilla.js', 'node.js'])
  .defineOption('devMode', true)
  .defineOption('bundled', false)
+ .defineOption('compress', false)
  .builder(function (sourceFiles) {
  var node = this.node,
  dropRequireCacheFunc = [
@@ -94,8 +99,14 @@ module.exports = require('enb/lib/build-flow').create()
 
  return bundle()
  .then(function (buf) {
- return buf.toString('utf-8');
- });
+ var str = buf.toString('utf-8');
+
+ if (this._compress) {
+ return minify(str, { fromString: true }).code;
+ }
+
+ return str;
+ }, this);
  }
 
  return [

test/techs/node-js.test.js

@@ -55,6 +55,40 @@ describe('node-js', function () {
  });
  });
 
+ describe('compress', function () {
+ var reference = [
+ '!function r(n,e,o){function t(f,i){if(!e[f]){if(!n[f]){' +
+ 'var c="function"==typeof require&&require;if(!i&&c)return c(f,!0);if(u)return u(f,!0);' +
+ 'var a=new Error("Cannot find module \'"+f+"\'");' +
+ 'throw a.code="MODULE_NOT_FOUND",a}var p=e[f]={exports:{}};n[f][0].call(p.exports,function(r){' +
+ 'var e=n[f][1][r];return t(e?e:r)},p,p.exports,r,n,e,o)}return e[f].exports}' +
+ 'for(var u="function"==typeof require&&require,f=0;f<o.length;f++)t(o[f]);return t}' +
+ '({1:[function(r,n,e){},{}],2:[function(r,n,e){foo&&bar()},{}]},{},[1,2]);'
+ ].join(''),
+ scheme = {
+ blocks: {
+ 'block0.vanilla.js': 'var b = function () {};',
+ 'block1.node.js': 'if (foo) { bar(); }'
+ }
+ };
+
+ it('must compress files', function () {
+ return build(scheme, { compress: true, bundled: true })
+ .spread(function (content) {
+ content.should.be.equal(reference);
+ });
+ });
+
+ it('must not compress if files is not bundled', function () {
+ var reference = 'var b=function(){};foo&&bar();';
+
+ return build(scheme, { compress: true })
+ .spread(function (content) {
+ content.should.not.be.equal(reference);
+ });
+ });
+ });
+
  describe('devMode', function () {
  var scheme = {
  blocks: {
@@ -214,5 +248,5 @@ function build(scheme, options) {
 
  bundle.provideTechData('?.files', fileList);
 
- return bundle.runTech(NodeJsTech, options);
+ return bundle.runTechAndGetContent(NodeJsTech, options);
 }