// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/* jshint node: true, browser: false */
/* eslint-env node */
/**
* @copyright 2014 Andrew Nicols
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* Grunt configuration
*/
module.exports = function(grunt) {
var path = require('path'),
tasks = {},
cwd = process.env.PWD || process.cwd(),
async = require('async'),
DOMParser = require('xmldom').DOMParser,
xpath = require('xpath'),
semver = require('semver');
// Verify the node version is new enough.
var expected = semver.validRange(grunt.file.readJSON('package.json').engines.node);
var actual = semver.valid(process.version);
if (!semver.satisfies(actual, expected)) {
grunt.fail.fatal('Node version too old. Require ' + expected + ', version installed: ' + actual);
}
// Windows users can't run grunt in a subdirectory, so allow them to set
// the root by passing --root=path/to/dir.
if (grunt.option('root')) {
var root = grunt.option('root');
if (grunt.file.exists(__dirname, root)) {
cwd = path.join(__dirname, root);
grunt.log.ok('Setting root to ' + cwd);
} else {
grunt.fail.fatal('Setting root to ' + root + ' failed - path does not exist');
}
}
var inAMD = path.basename(cwd) == 'amd';
// Globbing pattern for matching all AMD JS source files.
var amdSrc = [inAMD ? cwd + '/src/*.js' : '**/amd/src/*.js'];
/**
* Function to generate the destination for the uglify task
* (e.g. build/file.min.js). This function will be passed to
* the rename property of files array when building dynamically:
* http://gruntjs.com/configuring-tasks#building-the-files-object-dynamically
*
* @param {String} destPath the current destination
* @param {String} srcPath the matched src path
* @return {String} The rewritten destination path.
*/
var uglifyRename = function(destPath, srcPath) {
destPath = srcPath.replace('src', 'build');
destPath = destPath.replace('.js', '.min.js');
destPath = path.resolve(cwd, destPath);
return destPath;
};
/**
* Find thirdpartylibs.xml and generate an array of paths contained within
* them (used to generate ignore files and so on).
*
* @return {array} The list of thirdparty paths.
*/
var getThirdPartyPathsFromXML = function() {
var thirdpartyfiles = grunt.file.expand('*/**/thirdpartylibs.xml');
var libs = ['node_modules/', 'vendor/'];
thirdpartyfiles.forEach(function(file) {
var dirname = path.dirname(file);
var doc = new DOMParser().parseFromString(grunt.file.read(file));
var nodes = xpath.select("/libraries/library/location/text()", doc);
nodes.forEach(function(node) {
var lib = path.join(dirname, node.toString());
if (grunt.file.isDir(lib)) {
// Ensure trailing slash on dirs.
lib = lib.replace(/\/?$/, '/');
}
// Look for duplicate paths before adding to array.
if (libs.indexOf(lib) === -1) {
libs.push(lib);
}
});
});
return libs;
};
// Project configuration.
grunt.initConfig({
eslint: {
// Even though warnings dont stop the build we don't display warnings by default because
// at this moment we've got too many core warnings.
options: {quiet: !grunt.option('show-lint-warnings')},
amd: {src: amdSrc},
// Check YUI module source files.
yui: {src: ['**/yui/src/**/*.js', '!*/**/yui/src/*/meta/*.js']}
},
uglify: {
amd: {
files: [{
expand: true,
src: amdSrc,
rename: uglifyRename
}],
options: {report: 'none'}
}
},
less: {
bootstrapbase: {
files: {
"theme/bootstrapbase/style/moodle.css": "theme/bootstrapbase/less/moodle.less",
"theme/bootstrapbase/style/editor.css": "theme/bootstrapbase/less/editor.less",
},
options: {
compress: false // We must not compress to keep the comments.
}
}
},
watch: {
options: {
nospawn: true // We need not to spawn so config can be changed dynamically.
},
amd: {
files: ['**/amd/src/**/*.js'],
tasks: ['amd']
},
bootstrapbase: {
files: ["theme/bootstrapbase/less/**/*.less"],
tasks: ["css"]
},
yui: {
files: ['**/yui/src/**/*.js'],
tasks: ['yui']
},
gherkinlint: {
files: ['**/tests/behat/*.feature'],
tasks: ['gherkinlint']
}
},
shifter: {
options: {
recursive: true,
paths: [cwd]
}
},
gherkinlint: {
options: {
files: ['**/tests/behat/*.feature'],
}
},
stylelint: {
less: {
options: {
syntax: 'less',
configOverrides: {
rules: {
// These rules have to be disabled in .stylelintrc for scss compat.
"at-rule-no-unknown": true,
}
}
},
src: ['theme/**/*.less']
},
scss: {
options: {syntax: 'scss'},
src: ['*/**/*.scss']
},
css: {
src: ['*/**/*.css'],
options: {
configOverrides: {
rules: {
// These rules have to be disabled in .stylelintrc for scss compat.
"at-rule-no-unknown": true,
}
}
}
}
}
});
/**
* Generate ignore files (utilising thirdpartylibs.xml data)
*/
tasks.ignorefiles = function() {
// An array of paths to third party directories.
var thirdPartyPaths = getThirdPartyPathsFromXML();
// Generate .eslintignore.
var eslintIgnores = ['# Generated by "grunt ignorefiles"', '*/**/yui/src/*/meta/', '*/**/build/'].concat(thirdPartyPaths);
grunt.file.write('.eslintignore', eslintIgnores.join('\n'));
// Generate .stylelintignore.
var stylelintIgnores = [
'# Generated by "grunt ignorefiles"',
'theme/bootstrapbase/style/',
'theme/clean/style/custom.css',
'theme/more/style/custom.css'
].concat(thirdPartyPaths);
grunt.file.write('.stylelintignore', stylelintIgnores.join('\n'));
};
/**
* Shifter task. Is configured with a path to a specific file or a directory,
* in the case of a specific file it will work out the right module to be built.
*
* Note that this task runs the invidiaul shifter jobs async (becase it spawns
* so be careful to to call done().
*/
tasks.shifter = function() {
var done = this.async(),
options = grunt.config('shifter.options');
// Run the shifter processes one at a time to avoid confusing output.
async.eachSeries(options.paths, function(src, filedone) {
var args = [];
args.push(path.normalize(__dirname + '/node_modules/shifter/bin/shifter'));
// Always ignore the node_modules directory.
args.push('--excludes', 'node_modules');
// Determine the most appropriate options to run with based upon the current location.
if (grunt.file.isMatch('**/yui/**/*.js', src)) {
// When passed a JS file, build our containing module (this happen with
// watch).
grunt.log.debug('Shifter passed a specific JS file');
src = path.dirname(path.dirname(src));
options.recursive = false;
} else if (grunt.file.isMatch('**/yui/src', src)) {
// When in a src directory --walk all modules.
grunt.log.debug('In a src directory');
args.push('--walk');
options.recursive = false;
} else if (grunt.file.isMatch('**/yui/src/*', src)) {
// When in module, only build our module.
grunt.log.debug('In a module directory');
options.recursive = false;
} else if (grunt.file.isMatch('**/yui/src/*/js', src)) {
// When in module src, only build our module.
grunt.log.debug('In a source directory');
src = path.dirname(src);
options.recursive = false;
}
if (grunt.option('watch')) {
grunt.fail.fatal('The --watch option has been removed, please use `grunt watch` instead');
}
// Add the stderr option if appropriate
if (grunt.option('verbose')) {
args.push('--lint-stderr');
}
if (grunt.option('no-color')) {
args.push('--color=false');
}
var execShifter = function() {
grunt.log.ok("Running shifter on " + src);
grunt.util.spawn({
cmd: "node",
args: args,
opts: {cwd: src, stdio: 'inherit', env: process.env}
}, function(error, result, code) {
if (code) {
grunt.fail.fatal('Shifter failed with code: ' + code);
} else {
grunt.log.ok('Shifter build complete.');
filedone();
}
});
};
// Actually run shifter.
if (!options.recursive) {
execShifter();
} else {
// Check that there are yui modules otherwise shifter ends with exit code 1.
if (grunt.file.expand({cwd: src}, '**/yui/src/**/*.js').length > 0) {
args.push('--recursive');
execShifter();
} else {
grunt.log.ok('No YUI modules to build.');
filedone();
}
}
}, done);
};
tasks.gherkinlint = function() {
var done = this.async(),
options = grunt.config('gherkinlint.options');
var args = grunt.file.expand(options.files);
args.unshift(path.normalize(__dirname + '/node_modules/.bin/gherkin-lint'));
grunt.util.spawn({
cmd: 'node',
args: args,
opts: {stdio: 'inherit', env: process.env}
}, function(error, result, code) {
// Propagate the exit code.
done(code === 0);
});
};
tasks.startup = function() {
// Are we in a YUI directory?
if (path.basename(path.resolve(cwd, '../../')) == 'yui') {
grunt.task.run('yui');
// Are we in an AMD directory?
} else if (inAMD) {
grunt.task.run('amd');
} else {
// Run them all!.
grunt.task.run('css');
grunt.task.run('js');
grunt.task.run('gherkinlint');
}
};
// On watch, we dynamically modify config to build only affected files. This
// method is slightly complicated to deal with multiple changed files at once (copied
// from the grunt-contrib-watch readme).
var changedFiles = Object.create(null);
var onChange = grunt.util._.debounce(function() {
var files = Object.keys(changedFiles);
grunt.config('eslint.amd.src', files);
grunt.config('eslint.yui.src', files);
grunt.config('uglify.amd.files', [{expand: true, src: files, rename: uglifyRename}]);
grunt.config('shifter.options.paths', files);
grunt.config('stylelint.less.src', files);
grunt.config('gherkinlint.options.files', files);
changedFiles = Object.create(null);
}, 200);
grunt.event.on('watch', function(action, filepath) {
changedFiles[filepath] = action;
onChange();
});
// Register NPM tasks.
grunt.loadNpmTasks('grunt-contrib-uglify');
grunt.loadNpmTasks('grunt-contrib-less');
grunt.loadNpmTasks('grunt-contrib-watch');
grunt.loadNpmTasks('grunt-eslint');
grunt.loadNpmTasks('grunt-stylelint');
// Register JS tasks.
grunt.registerTask('shifter', 'Run Shifter against the current directory', tasks.shifter);
grunt.registerTask('gherkinlint', 'Run gherkinlint against the current directory', tasks.gherkinlint);
grunt.registerTask('ignorefiles', 'Generate ignore files for linters', tasks.ignorefiles);
grunt.registerTask('yui', ['eslint:yui', 'shifter']);
grunt.registerTask('amd', ['eslint:amd', 'uglify']);
grunt.registerTask('js', ['amd', 'yui']);
// Register CSS taks.
grunt.registerTask('css', ['stylelint:scss', 'stylelint:less', 'less:bootstrapbase', 'stylelint:css']);
// Register the startup task.
grunt.registerTask('startup', 'Run the correct tasks for the current directory', tasks.startup);
// Register the default task.
grunt.registerTask('default', ['startup']);
};