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// 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
*/
/* eslint-env node */
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'),
watchman = require('fb-watchman'),
watchmanClient = new watchman.Client(),
gruntFilePath = process.cwd();
// 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 not satisfied. 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 files = null;
if (grunt.option('files')) {
// Accept a comma separated list of files to process.
files = grunt.option('files').split(',');
}
var inAMD = path.basename(cwd) == 'amd';
// Globbing pattern for matching all AMD JS source files.
var amdSrc = [];
if (inAMD) {
amdSrc.push(cwd + "/src/*.js");
amdSrc.push(cwd + "/src/**/*.js");
} else {
amdSrc.push("**/amd/src/*.js");
amdSrc.push("**/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 babelRename = function(destPath, srcPath) {
destPath = srcPath.replace('src', 'build');
destPath = destPath.replace('.js', '.min.js');
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.
// To display warnings call: grunt eslint --show-lint-warnings
// To fail on warnings call: grunt eslint --max-lint-warnings=0
// Also --max-lint-warnings=-1 can be used to display warnings but not fail.
options: {
quiet: (!grunt.option('show-lint-warnings')) && (typeof grunt.option('max-lint-warnings') === 'undefined'),
maxWarnings: ((typeof grunt.option('max-lint-warnings') !== 'undefined') ? grunt.option('max-lint-warnings') : -1)
},
amd: {src: files ? files : amdSrc},
// Check YUI module source files.
yui: {src: files ? files : ['**/yui/src/**/*.js', '!*/**/yui/src/*/meta/*.js']}
},
babel: {
options: {
sourceMaps: true,
comments: false,
plugins: [
'transform-es2015-modules-amd-lazy',
'system-import-transformer',
// This plugin modifies the Babel transpiling for "export default"
// so that if it's used then only the exported value is returned
// by the generated AMD module.
//
// It also adds the Moodle plugin name to the AMD module definition
// so that it can be imported as expected in other modules.
path.resolve('babel-plugin-add-module-to-define.js'),
'@babel/plugin-syntax-dynamic-import',
'@babel/plugin-syntax-import-meta',
['@babel/plugin-proposal-class-properties', {'loose': false}],
'@babel/plugin-proposal-json-strings'
],
presets: [
['minify', {
// This minification plugin needs to be disabled because it breaks the
// source map generation and causes invalid source maps to be output.
simplify: false,
builtIns: false
}],
['@babel/preset-env', {
targets: {
browsers: [
">0.25%",
"last 2 versions",
"not ie <= 10",
"not op_mini all",
"not Opera > 0",
"not dead"
]
},
modules: false,
useBuiltIns: false
}]
]
},
dist: {
files: [{
expand: true,
src: files ? files : amdSrc,
rename: babelRename
}]
}
},
sass: {
dist: {
files: {
"theme/boost/style/moodle.css": "theme/boost/scss/preset/default.scss",
"theme/classic/style/moodle.css": "theme/classic/scss/classicgrunt.scss"
}
},
options: {
includePaths: ["theme/boost/scss/", "theme/classic/scss/"]
}
},
watch: {
options: {
nospawn: true // We need not to spawn so config can be changed dynamically.
},
amd: {
files: ['**/amd/src/**/*.js'],
tasks: ['amd']
},
boost: {
files: ['**/theme/boost/scss/**/*.scss'],
tasks: ['scss']
},
rawcss: {
files: ['**/*.css', '**/theme/**/!(moodle.css|editor.css)'],
tasks: ['rawcss']
},
yui: {
files: ['**/yui/src/**/*.js'],
tasks: ['yui']
},
gherkinlint: {
files: ['**/tests/behat/*.feature'],
tasks: ['gherkinlint']
}
},
shifter: {
options: {
recursive: true,
paths: files ? files : [cwd]
}
},
gherkinlint: {
options: {
files: files ? files : ['**/tests/behat/*.feature'],
}
},
stylelint: {
scss: {
options: {syntax: 'scss'},
src: files ? files : ['*/**/*.scss']
},
css: {
src: files ? files : ['*/**/*.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"',
'**/yui/build/*',
'theme/boost/style/moodle.css',
'theme/classic/style/moodle.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() {
const done = this.async();
const options = grunt.config('gherkinlint.options');
// Grab the gherkin-lint linter and required scaffolding.
const linter = require('gherkin-lint/src/linter.js');
const featureFinder = require('gherkin-lint/src/feature-finder.js');
const configParser = require('gherkin-lint/src/config-parser.js');
const formatter = require('gherkin-lint/src/formatters/stylish.js');
// Run the linter.
const results = linter.lint(
featureFinder.getFeatureFiles(grunt.file.expand(options.files)),
configParser.getConfiguration(configParser.defaultConfigFileName)
);
// Print the results out uncondtionally.
formatter.printResults(results);
// Report on the results.
// The done function takes a bool whereby a falsey statement causes the task to fail.
done(results.every(result => result.errors.length === 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');
}
};
/**
* This is a wrapper task to handle the grunt watch command. It attempts to use
* Watchman to monitor for file changes, if it's installed, because it's much faster.
*
* If Watchman isn't installed then it falls back to the grunt-contrib-watch file
* watcher for backwards compatibility.
*/
tasks.watch = function() {
var watchTaskDone = this.async();
var watchInitialised = false;
var watchTaskQueue = {};
var processingQueue = false;
// Grab the tasks and files that have been queued up and execute them.
var processWatchTaskQueue = function() {
if (!Object.keys(watchTaskQueue).length || processingQueue) {
// If there is nothing in the queue or we're already processing then wait.
return;
}
processingQueue = true;
// Grab all tasks currently in the queue.
var queueToProcess = watchTaskQueue;
// Reset the queue.
watchTaskQueue = {};
async.forEachSeries(
Object.keys(queueToProcess),
function(task, next) {
var files = queueToProcess[task];
var filesOption = '--files=' + files.join(',');
grunt.log.ok('Running task ' + task + ' for files ' + filesOption);
// Spawn the task in a child process so that it doesn't kill this one
// if it failed.
grunt.util.spawn(
{
// Spawn with the grunt bin.
grunt: true,
// Run from current working dir and inherit stdio from process.
opts: {
cwd: cwd,
stdio: 'inherit'
},
args: [task, filesOption]
},
function(err, res, code) {
if (code !== 0) {
// The grunt task failed.
grunt.log.error(err);
}
// Move on to the next task.
next();
}
);
},
function() {
// No longer processing.
processingQueue = false;
// Once all of the tasks are done then recurse just in case more tasks
// were queued while we were processing.
processWatchTaskQueue();
}
);
};
var watchConfig = grunt.config.get(['watch']);
watchConfig = Object.keys(watchConfig).reduce(function(carry, key) {
if (key == 'options') {
return carry;
}
var value = watchConfig[key];
var fileGlobs = value.files;
var taskNames = value.tasks;
taskNames.forEach(function(taskName) {
carry[taskName] = fileGlobs;
});
return carry;
}, {});
watchmanClient.on('error', function(error) {
// We have to add an error handler here and parse the error string because the
// example way from the docs to check if Watchman is installed doesn't actually work!!
// See: https://github.com/facebook/watchman/issues/509
if (error.message.match('Watchman was not found')) {
// If watchman isn't installed then we should fallback to the other watch task.
grunt.log.ok('It is recommended that you install Watchman for better performance using the "watch" command.');
// Fallback to the old grunt-contrib-watch task.
grunt.renameTask('watch-grunt', 'watch');
grunt.task.run(['watch']);
// This task is finished.
watchTaskDone(0);
} else {
grunt.log.error(error);
// Fatal error.
watchTaskDone(1);
}
});
watchmanClient.on('subscription', function(resp) {
if (resp.subscription !== 'grunt-watch') {
return;
}
resp.files.forEach(function(file) {
grunt.log.ok('File changed: ' + file.name);
var fullPath = cwd + '/' + file.name;
Object.keys(watchConfig).forEach(function(task) {
var fileGlobs = watchConfig[task];
var match = fileGlobs.every(function(fileGlob) {
return grunt.file.isMatch(fileGlob, fullPath);
});
if (match) {
// If we are watching a subdirectory then the file.name will be relative
// to that directory. However the grunt tasks expect the file paths to be
// relative to the Gruntfile.js location so let's normalise them before
// adding them to the queue.
var relativePath = fullPath.replace(gruntFilePath + '/', '');
if (task in watchTaskQueue) {
if (!watchTaskQueue[task].includes(relativePath)) {
watchTaskQueue[task] = watchTaskQueue[task].concat(relativePath);
}
} else {
watchTaskQueue[task] = [relativePath];
}
}
});
});
processWatchTaskQueue();
});
process.on('SIGINT', function() {
// Let the user know that they may need to manually stop the Watchman daemon if they
// no longer want it running.
if (watchInitialised) {
grunt.log.ok('The Watchman daemon may still be running and may need to be stopped manually.');
}
process.exit();
});
// Initiate the watch on the current directory.
watchmanClient.command(['watch-project', cwd], function(watchError, watchResponse) {
if (watchError) {
grunt.log.error('Error initiating watch:', watchError);
watchTaskDone(1);
return;
}
if ('warning' in watchResponse) {
grunt.log.error('warning: ', watchResponse.warning);
}
var watch = watchResponse.watch;
var relativePath = watchResponse.relative_path;
watchInitialised = true;
watchmanClient.command(['clock', watch], function(clockError, clockResponse) {
if (clockError) {
grunt.log.error('Failed to query clock:', clockError);
watchTaskDone(1);
return;
}
// Use the matching patterns specified in the watch config.
var matches = Object.keys(watchConfig).map(function(task) {
var fileGlobs = watchConfig[task];
var fileGlobMatches = fileGlobs.map(function(fileGlob) {
return ['match', fileGlob, 'wholename'];
});
return ['allof'].concat(fileGlobMatches);
});
var sub = {
expression: ["anyof"].concat(matches),
// Which fields we're interested in.
fields: ["name", "size", "type"],
// Add our time constraint.
since: clockResponse.clock
};
if (relativePath) {
/* eslint-disable camelcase */
sub.relative_root = relativePath;
}
watchmanClient.command(['subscribe', watch, 'grunt-watch', sub], function(subscribeError) {
if (subscribeError) {
// Probably an error in the subscription criteria.
grunt.log.error('failed to subscribe: ', subscribeError);
watchTaskDone(1);
return;
}
grunt.log.ok('Listening for changes to files in ' + cwd);
});
});
});
};
// 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('shifter.options.paths', files);
grunt.config('gherkinlint.options.files', files);
grunt.config('babel.dist.files', [{expand: true, src: files, rename: babelRename}]);
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-watch');
grunt.loadNpmTasks('grunt-sass');
grunt.loadNpmTasks('grunt-eslint');
grunt.loadNpmTasks('grunt-stylelint');
grunt.loadNpmTasks('grunt-babel');
// Rename the grunt-contrib-watch "watch" task because we're going to wrap it.
grunt.renameTask('watch', 'watch-grunt');
// 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('watch', 'Run tasks on file changes', tasks.watch);
grunt.registerTask('yui', ['eslint:yui', 'shifter']);
grunt.registerTask('amd', ['eslint:amd', 'babel']);
grunt.registerTask('js', ['amd', 'yui']);
// Register CSS taks.
grunt.registerTask('css', ['stylelint:scss', 'sass', 'stylelint:css']);
grunt.registerTask('scss', ['stylelint:scss', 'sass']);
grunt.registerTask('rawcss', ['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']);
};