diff --git a/.travis.yml b/.travis.yml new file mode 100644 index 0000000..2f36afd --- /dev/null +++ b/.travis.yml @@ -0,0 +1,4 @@ +language: node_js + +node_js: + - stable diff --git a/README.md b/README.md index 72af860..3aac813 100644 --- a/README.md +++ b/README.md @@ -1,5 +1,7 @@ # closure-compiler-js + + Check, compile, transpile, optimize and compress JavaScript with Closure Compiler in JS. This repo tracks issues related to the publication to npmjs.org and associated plugins. @@ -8,13 +10,14 @@ Any bugs not related to the plugins themselves should be reported to the [main r Unlike other packages, this allows Closure Compiler to run entirely in JS. *Java is not required.* -This is an experimental release - meaning some features are not available and performance may not be on-par with the Java implementation. [Details Here](#transpilation) +This is an experimental release - meaning some features are not available and performance may not be on-par with the Java implementation - [details here](#transpilation). ## Usage First, install the latest version: ```bash +yarn add google-closure-compiler-js # or npm install --save google-closure-compiler-js ``` @@ -132,9 +135,10 @@ gulp.task('script', function() { ### Languages The Closure Compiler supports the following languages: -- `ECMASCRIPT3`, `ECMASCRIPT5` and `ECMASCRIPT5_STRICT` for input and output; -- `ECMASCRIPT6` and `ECMASCRIPT6_STRICT` for input only; -- `ECMASCRIPT6_TYPED` (experimental) for both. +- `ECMASCRIPT3`, `ECMASCRIPT5` and `ECMASCRIPT5_STRICT` +- `ECMASCRIPT6` and `ECMASCRIPT6_STRICT` +- `ECMASCRIPT6_TYPED` (experimental) +- `ECMASCRIPT_2017` (experimental) ### Source Code @@ -143,7 +147,11 @@ Unless you're using Gulp's or Webpack's plugins, you'll need to specify code via - Using `path` you can construct a virtual filesystem for use with ES6 or CommonJS imports — although for CommonJS you'll have to set `processCommonJsModules: true`. ## Transpilation -The JavaScript version of the Closure-Compiler is transpiled by GWT from the Java source. For more details on the differences in behavior see the [super sourced files](https://github.com/google/closure-compiler/tree/master/src/com/google/javascript/jscomp/gwt/super) in the main repo. +The JavaScript version of the Closure-Compiler is transpiled by GWT from the Java source. +For more details on the differences in behavior see the [super sourced files][1] in the main +repository. + +[1]: https://github.com/google/closure-compiler/tree/master/src/com/google/javascript/jscomp/gwt/super ## Version History diff --git a/build.js b/build_compiler.js similarity index 82% rename from build.js rename to build_compiler.js index f40f953..7b374ef 100755 --- a/build.js +++ b/build_compiler.js @@ -15,6 +15,10 @@ * limitations under the License. */ +/** + * @fileoverview Builds the Closure Compiler using Maven. + */ + 'use strict'; const spawn = require('child_process').spawnSync; @@ -23,20 +27,21 @@ const ncp = require('ncp'); const moduleName = 'com.google.javascript:closure-compiler-gwt'; const compilerBuild = spawn('mvn', ['-DskipTests', '-pl', moduleName], { cwd: './closure-compiler', - stdio: 'inherit' + stdio: 'inherit', }); if (compilerBuild.status !== 0) { throw new Error('compiler build failed'); } +const pathsToCopy = ['contrib']; const targetPath = './closure-compiler/target/closure-compiler-gwt-1.0-SNAPSHOT/jscomp/jscomp.js'; -ncp(targetPath, './jscomp.js', err => { +ncp(targetPath, './jscomp.js', (err) => { if (err) { throw new Error(err); } - ['contrib'].forEach(name => { - ncp('./closure-compiler/' + name, './' + name, function(err) { + pathsToCopy.forEach((p) => { + ncp('./closure-compiler/' + p, './' + p, function(err) { if (err) { throw new Error(err); } diff --git a/package-lock.json b/package-lock.json index ab8f2c5..7df7e9f 100644 --- a/package-lock.json +++ b/package-lock.json @@ -1,107 +1,494 @@ { "name": "google-closure-compiler-js", - "version": "20170626.0.0", + "version": "20170910.0.1", 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"cloneable-readable": "1.0.0", + "remove-trailing-separator": "1.1.0", + "replace-ext": "1.0.0" + } + }, + "webpack-core": { + "version": "0.6.9", + "resolved": "https://registry.npmjs.org/webpack-core/-/webpack-core-0.6.9.tgz", + "integrity": "sha1-/FcViMhVjad76e+23r3Fo7FyvcI=", + "requires": { + "source-list-map": "0.1.8", + "source-map": "0.4.4" + } + }, + "xtend": { + "version": "4.0.1", + "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz", + "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=" + } + } +} diff --git a/samples/src/index.js b/samples/src/index.js index 5754301..c63cd17 100644 --- a/samples/src/index.js +++ b/samples/src/index.js @@ -20,7 +20,7 @@ 'use strict'; -const helperModule = require('./helper'); +const helperModule = require('./helper.js'); let authors = 'The Closure Compiler Authors'; console.info(`I'm a test module by ${authors}.`); diff --git a/test/mocha.opts b/test/mocha.opts new file mode 100644 index 0000000..ad55f37 --- /dev/null +++ b/test/mocha.opts @@ -0,0 +1,2 @@ +--ui tdd +--timeout 30000 diff --git a/test/simple.js b/test/simple.js old mode 100755 new mode 100644 index bc007a3..721b734 --- a/test/simple.js +++ b/test/simple.js @@ -1,6 +1,5 @@ -#!/usr/bin/env node /* - * Copyright 2016 The Closure Compiler Authors. + * Copyright 2017 The Closure Compiler Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -15,30 +14,76 @@ * limitations under the License. */ -/** - * @fileoverview Simple sanity check to run after jscomp.js has been built. - */ +const compile = require('../compile.js'); +const assert = require('chai').assert; + +suite('closure', () => { + function assertCompileOk(out, expected, opt_message) { + assert.sameOrderedMembers(out.warnings, [], 'expected zero warnings'); + assert.sameOrderedMembers(out.errors, [], 'expected zero errors'); + assert.equal(out.compiledCode, expected, opt_message); + } + + test('simple', () => { + const flags = { + jsCode: [{src: 'const x = 1 + 2;'}], + warningLevel: 'VERBOSE', + }; + const out = compile(flags); + assertCompileOk(out, 'var x=3;') + }); -'use strict'; + test('advanced', () => { + const flags = { + jsCode: [{ + src: 'var x = 1;\nif (x)\nconsole.info(1);', + path: 'foo.js', + }], + warningLevel: 'VERBOSE', + }; -const compile = require('../index.js').compile; + flags.compilationLevel = 'ADVANCED'; + const advanced = compile(flags); -const flags = { - jsCode: [{src: 'const x = 1 + 2;'}], - warningLevel: 'VERBOSE', -}; -const out = compile(flags); + flags.compilationLevel = 'SIMPLE'; + const simple = compile(flags); -const expected = 'var x=3;'; -if (out.compiledCode !== expected) { - console.error(`expected: "${expected}", was: "${out.compiledCode}"`); - throw new Error('test failed'); -} + assert.isBelow(advanced.compiledCode.length, simple.compiledCode.length, + 'advanced code should be smaller'); + assertCompileOk(advanced, 'console.info(1);', 'advanced code was incorrect'); + assertCompileOk(simple, 'var x=1;console.info(1);', 'simple code was incorrect'); + }); -if (out.warnings.length || out.errors.length) { - console.error(`expected zero warnings/errors, got: ${out.warnings} ${out.errors}`); - throw new Error('test failed'); -} + test('require()', () => { + const flags = { + jsCode: [{ + src: 'module.exports = () => { console.info(`Hello!`); };', + path: 'src/hello.js', + }, { + src: '\'use strict\';\nconst x = require(\'./hello.js\');\nx();', + path: 'src/index.js', + }], + processCommonJsModules: true, + compilationLevel: 'ADVANCED', + warningLevel: 'VERBOSE', + }; + const out = compile(flags); + assertCompileOk(out, 'console.info("Hello!");'); + }); -console.info('Ok! 👍'); + test('ES7 out', () => { + const flags = { + jsCode: [{ + src: 'console.log(`foo`)', + path: 'foo.js', + }], + languageIn: 'ECMASCRIPT_2017', + languageOut: 'ECMASCRIPT_2017', + compilationLevel: 'ADVANCED', + warningLevel: 'VERBOSE', + }; + const out = compile(flags); + assertCompileOk(out, '\'use strict\';console.log("foo");') + }); +});