1 // This file is part of Moodle - http://moodle.org/
3 // Moodle is free software: you can redistribute it and/or modify
4 // it under the terms of the GNU General Public License as published by
5 // the Free Software Foundation, either version 3 of the License, or
6 // (at your option) any later version.
8 // Moodle is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 // GNU General Public License for more details.
13 // You should have received a copy of the GNU General Public License
14 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
15 /* jshint node: true, browser: false */
19 * @copyright 2014 Andrew Nicols
20 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
27 module.exports = function(grunt) {
28 var path = require('path'),
30 cwd = process.env.PWD || process.cwd(),
31 async = require('async'),
32 DOMParser = require('xmldom').DOMParser,
33 xpath = require('xpath');
35 // Windows users can't run grunt in a subdirectory, so allow them to set
36 // the root by passing --root=path/to/dir.
37 if (grunt.option('root')) {
38 var root = grunt.option('root');
39 if (grunt.file.exists(__dirname, root)) {
40 cwd = path.join(__dirname, root);
41 grunt.log.ok('Setting root to ' + cwd);
43 grunt.fail.fatal('Setting root to ' + root + ' failed - path does not exist');
47 var inAMD = path.basename(cwd) == 'amd';
49 // Globbing pattern for matching all AMD JS source files.
50 var amdSrc = [inAMD ? cwd + '/src/*.js' : '**/amd/src/*.js'];
53 * Function to generate the destination for the uglify task
54 * (e.g. build/file.min.js). This function will be passed to
55 * the rename property of files array when building dynamically:
56 * http://gruntjs.com/configuring-tasks#building-the-files-object-dynamically
58 * @param {String} destPath the current destination
59 * @param {String} srcPath the matched src path
60 * @return {String} The rewritten destination path.
62 var uglifyRename = function(destPath, srcPath) {
63 destPath = srcPath.replace('src', 'build');
64 destPath = destPath.replace('.js', '.min.js');
65 destPath = path.resolve(cwd, destPath);
70 * Find thirdpartylibs.xml and generate an array of paths contained within
71 * them (used to generate ignore files and so on).
73 * @return {array} The list of thirdparty paths.
75 var getThirdPartyPathsFromXML = function() {
76 var thirdpartyfiles = grunt.file.expand('*/**/thirdpartylibs.xml');
77 var libs = ['node_modules/', 'vendor/'];
79 thirdpartyfiles.forEach(function(file) {
80 var dirname = path.dirname(file);
82 var doc = new DOMParser().parseFromString(grunt.file.read(file));
83 var nodes = xpath.select("/libraries/library/location/text()", doc);
85 nodes.forEach(function(node) {
86 var lib = path.join(dirname, node.toString());
87 if (grunt.file.isDir(lib)) {
88 // Ensure trailing slash on dirs.
89 lib = lib.replace(/\/?$/, '/');
92 // Look for duplicate paths before adding to array.
93 if (libs.indexOf(lib) === -1) {
102 // Project configuration.
105 // Even though warnings dont stop the build we don't display warnings by default because
106 // at this moment we've got too many core warnings.
107 options: {quiet: !grunt.option('show-lint-warnings')},
110 // Check AMD with some slightly stricter rules.
112 'no-unused-vars': 'error',
113 'no-implicit-globals': 'error'
116 // Check YUI module source files.
118 src: ['**/yui/src/**/*.js', '!*/**/yui/src/*/meta/*.js'],
120 // Disable some rules which we can't safely define for YUI rollups.
123 'no-unused-vars': 'off',
124 'no-unused-expressions': 'off'
136 options: {report: 'none'}
142 "theme/bootstrapbase/style/moodle.css": "theme/bootstrapbase/less/moodle.less",
143 "theme/bootstrapbase/style/editor.css": "theme/bootstrapbase/less/editor.less",
152 nospawn: true // We need not to spawn so config can be changed dynamically.
155 files: ['**/amd/src/**/*.js'],
159 files: ["theme/bootstrapbase/less/**/*.less"],
163 files: ['**/yui/src/**/*.js'],
179 // TODO: MDL-55165 -Enable these rules once we make output-changing changes to less.
180 "declaration-block-no-ignored-properties": null,
181 "value-keyword-case": null,
182 "declaration-block-no-duplicate-properties": null,
183 "declaration-block-no-shorthand-property-overrides": null,
184 "selector-type-no-unknown": null,
185 "length-zero-no-unit": null,
186 "color-hex-case": null,
187 "color-hex-length": null
191 src: ['theme/**/*.less']
197 * Generate ignore files (utilising thirdpartylibs.xml data)
199 tasks.ignorefiles = function() {
200 // An array of paths to third party directories.
201 var thirdPartyPaths = getThirdPartyPathsFromXML();
202 // Generate .eslintignore.
203 var eslintIgnores = ['# Generated by "grunt ignorefiles"', '*/**/yui/src/*/meta/', '*/**/build/'].concat(thirdPartyPaths);
204 grunt.file.write('.eslintignore', eslintIgnores.join('\n'));
205 // Generate .stylelintignore.
206 var stylelintIgnores = ['# Generated by "grunt ignorefiles"', 'theme/bootstrapbase/style/'].concat(thirdPartyPaths);
207 grunt.file.write('.stylelintignore', stylelintIgnores.join('\n'));
211 * Shifter task. Is configured with a path to a specific file or a directory,
212 * in the case of a specific file it will work out the right module to be built.
214 * Note that this task runs the invidiaul shifter jobs async (becase it spawns
215 * so be careful to to call done().
217 tasks.shifter = function() {
218 var done = this.async(),
219 options = grunt.config('shifter.options');
221 // Run the shifter processes one at a time to avoid confusing output.
222 async.eachSeries(options.paths, function(src, filedone) {
224 args.push(path.normalize(__dirname + '/node_modules/shifter/bin/shifter'));
226 // Always ignore the node_modules directory.
227 args.push('--excludes', 'node_modules');
229 // Determine the most appropriate options to run with based upon the current location.
230 if (grunt.file.isMatch('**/yui/**/*.js', src)) {
231 // When passed a JS file, build our containing module (this happen with
233 grunt.log.debug('Shifter passed a specific JS file');
234 src = path.dirname(path.dirname(src));
235 options.recursive = false;
236 } else if (grunt.file.isMatch('**/yui/src', src)) {
237 // When in a src directory --walk all modules.
238 grunt.log.debug('In a src directory');
240 options.recursive = false;
241 } else if (grunt.file.isMatch('**/yui/src/*', src)) {
242 // When in module, only build our module.
243 grunt.log.debug('In a module directory');
244 options.recursive = false;
245 } else if (grunt.file.isMatch('**/yui/src/*/js', src)) {
246 // When in module src, only build our module.
247 grunt.log.debug('In a source directory');
248 src = path.dirname(src);
249 options.recursive = false;
252 if (grunt.option('watch')) {
253 grunt.fail.fatal('The --watch option has been removed, please use `grunt watch` instead');
256 // Add the stderr option if appropriate
257 if (grunt.option('verbose')) {
258 args.push('--lint-stderr');
261 if (grunt.option('no-color')) {
262 args.push('--color=false');
265 var execShifter = function() {
267 grunt.log.ok("Running shifter on " + src);
271 opts: {cwd: src, stdio: 'inherit', env: process.env}
272 }, function(error, result, code) {
274 grunt.fail.fatal('Shifter failed with code: ' + code);
276 grunt.log.ok('Shifter build complete.');
282 // Actually run shifter.
283 if (!options.recursive) {
286 // Check that there are yui modules otherwise shifter ends with exit code 1.
287 if (grunt.file.expand({cwd: src}, '**/yui/src/**/*.js').length > 0) {
288 args.push('--recursive');
291 grunt.log.ok('No YUI modules to build.');
298 tasks.startup = function() {
299 // Are we in a YUI directory?
300 if (path.basename(path.resolve(cwd, '../../')) == 'yui') {
301 grunt.task.run('yui');
302 // Are we in an AMD directory?
304 grunt.task.run('amd');
307 grunt.task.run('css');
308 grunt.task.run('js');
312 // On watch, we dynamically modify config to build only affected files. This
313 // method is slightly complicated to deal with multiple changed files at once (copied
314 // from the grunt-contrib-watch readme).
315 var changedFiles = Object.create(null);
316 var onChange = grunt.util._.debounce(function() {
317 var files = Object.keys(changedFiles);
318 grunt.config('eslint.amd.src', files);
319 grunt.config('eslint.yui.src', files);
320 grunt.config('uglify.amd.files', [{expand: true, src: files, rename: uglifyRename}]);
321 grunt.config('shifter.options.paths', files);
322 grunt.config('stylelint.less.src', files);
323 changedFiles = Object.create(null);
326 grunt.event.on('watch', function(action, filepath) {
327 changedFiles[filepath] = action;
331 // Register NPM tasks.
332 grunt.loadNpmTasks('grunt-contrib-uglify');
333 grunt.loadNpmTasks('grunt-contrib-less');
334 grunt.loadNpmTasks('grunt-contrib-watch');
335 grunt.loadNpmTasks('grunt-eslint');
336 grunt.loadNpmTasks('grunt-stylelint');
338 // Register JS tasks.
339 grunt.registerTask('shifter', 'Run Shifter against the current directory', tasks.shifter);
340 grunt.registerTask('ignorefiles', 'Generate ignore files for linters', tasks.ignorefiles);
341 grunt.registerTask('yui', ['eslint:yui', 'shifter']);
342 grunt.registerTask('amd', ['eslint:amd', 'uglify']);
343 grunt.registerTask('js', ['amd', 'yui']);
345 // Register CSS taks.
346 grunt.registerTask('css', ['stylelint:less', 'less:bootstrapbase']);
348 // Register the startup task.
349 grunt.registerTask('startup', 'Run the correct tasks for the current directory', tasks.startup);
351 // Register the default task.
352 grunt.registerTask('default', ['startup']);