Merge pull request #295 from magento-frontend/MAGETWO-55345

MAGETWO-55345 Grunt uses actual theme's list

Author: Yaroslav Onischenko

Gruntfile.js.sample

@@ -5,14 +5,19 @@
 
 // For performance use one level down: 'name/{,*/}*.js'
 // If you want to recursively match all subfolders, use: 'name/**/*.js'
+
 module.exports = function (grunt) {
     'use strict';
 
     var _ = require('underscore'),
         path = require('path'),
-        themes = require('./dev/tools/grunt/configs/themes'),
+        filesRouter = require('./dev/tools/grunt/tools/files-router'),
         configDir = './dev/tools/grunt/configs',
-        tasks = grunt.file.expand('./dev/tools/grunt/tasks/*');
+        tasks = grunt.file.expand('./dev/tools/grunt/tasks/*'),
+        themes;
+
+        filesRouter.set('themes', 'dev/tools/grunt/configs/themes');
+        themes = filesRouter.get('themes');
 
     tasks = _.map(tasks, function(task){ return task.replace('.js', '') });
     tasks.push('time-grunt');

dev/tools/grunt/configs/clean.js

@@ -5,7 +5,7 @@
 
 'use strict';
 
-var themes = require('./themes'),
+var themes = require('../tools/files-router').get('themes'),
     _      = require('underscore');
 
 var themeOptions = {};

dev/tools/grunt/configs/combo.js

@@ -5,7 +5,7 @@
 
 'use strict';
 
-var theme = require('./themes'),
+var theme = require('../tools/files-router').get('themes'),
     path = require('./path');
 
 /**

dev/tools/grunt/configs/exec.js

@@ -6,7 +6,7 @@
 'use strict';
 
 var combo = require('./combo'),
-    themes = require('./themes'),
+    themes = require('../tools/files-router').get('themes'),
     _      = require('underscore');
 
 var themeOptions = {};

dev/tools/grunt/configs/less.js

@@ -6,7 +6,7 @@
 'use strict';
 
 var combo  = require('./combo'),
-    themes = require('./themes'),
+    themes = require('../tools/files-router').get('themes'),
     _      = require('underscore');
 
 var themeOptions = {};

dev/tools/grunt/configs/watch.js

@@ -6,7 +6,7 @@
 'use strict';
 
 var combo  = require('./combo'),
-    themes = require('./themes'),
+    themes = require('../tools/files-router').get('themes'),
     _      = require('underscore');
 
 var themeOptions = {};

dev/tools/grunt/tools/files-router.js

@@ -0,0 +1,83 @@
+/**
+ * Copyright © 2016 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+'use strict';
+
+var defaultConfig = {},
+
+    /**
+     * Generates full path to file.
+     *
+     * @param {String} path - relative path to file.
+     *
+     * @returns {String} Full path to file
+     */
+    getFullPath = function (path) {
+        return process.cwd() + '/' + path;
+    },
+
+    /**
+     * Returns file.
+     *
+     * @param {String} path - relative path to file.
+     *
+     * @returns {Object|Null} File or NULL
+     */
+    getFile = function (path) {
+        try {
+            return require(getFullPath(path));
+        } catch (error) {
+            return null;
+        }
+    },
+
+    /**
+     * Immediately invoked function.
+     * Loads user config file.
+     */
+    userConfig = (function () {
+        try {
+            return require(process.cwd() + '/grunt-config');
+        } catch (error) {
+            return null;
+        }
+    })();
+
+module.exports = {
+
+    /**
+     * Loads file.
+     * Load priority:
+     *      From user config;
+     *      From default config with ".loc" suffix ;
+     *      From default config;
+     *
+     * @param {String} alias
+     *
+     * @returns {Object} themes file or error
+     */
+    get: function (alias) {
+        var tmp;
+
+        if (userConfig && userConfig[alias]) {
+            return require(getFullPath(userConfig[alias]));
+        } else if (tmp = getFile(defaultConfig[alias] + '.loc') ||  getFile(defaultConfig[alias])) {
+            return tmp;
+        } else {
+            throw new Error('Cannot find file. Alias "' + alias + '" not set. ' +
+                'Use "filesRouter.set" method to set it.').stack;
+        }
+    },
+
+    /**
+     * Sets file alias.
+     *
+     * @param {String} alias
+     * @param {String} path
+     */
+    set: function (alias, path) {
+        defaultConfig[alias] = path;
+    }
+};

grunt-config.json.sample

@@ -0,0 +1,3 @@
+{
+    "themes": "dev/tools/grunt/configs/local-themes"
+}