pluginManager.js

/**
 * Interactive Linter Copyright (c) 2015 Miguel Castillo.
 *
 * Licensed under MIT
 */


define(function(require, exports, module) {
    "use strict";

    var _                  = brackets.getModule("thirdparty/lodash"),
        FileSystem         = brackets.getModule("filesystem/FileSystem"),
        pluginLoader       = require("pluginLoader"),
        Promise            = require("libs/js/spromise"),
        pluginDirectory    = module.uri.substring(0, module.uri.lastIndexOf("/")),
        PreferencesManager = brackets.getModule("preferences/PreferencesManager"),
        preferences        = PreferencesManager.getExtensionPrefs("interactive-linter");


    var webworker;
    preferences.definePreference("webworker", "boolean", true).on("change", function() {
        webworker = preferences.get("webworker");
    });


    /**
     * pluginManager is the processor for loading up plugins in the plugins directory in
     * make sure they are smoothly running in a worker thread.
     */
    function pluginManager() {
        return Promise.all([getPluginsMeta(pluginDirectory  + "/plugins/default/threaded",'webworker'), getPluginsMeta(pluginDirectory  + "/plugins/dev/threaded",'webworker'),getPluginsMeta(pluginDirectory  + "/plugins/default/embedded",'embedded'), getPluginsMeta(pluginDirectory  + "/plugins/dev/embedded",'embedded')])
            .then(loadPlugins)
            .then(pluginsLoaded);
    }


    function loadPlugins(plugins) {
        plugins = _.filter(plugins, function(plugin) {
            return plugin.directories.length !== 0;
        });

        return Promise.all(plugins.map(loadPlugin));
    }


    function loadPlugin(plugin) {
        if (webworker && plugin.type === 'webworker') {
            return pluginLoader.workerThreadPluginLoader(plugin);
        }
        else {
            return pluginLoader.embeddedPluginLoader(plugin);
        }
    }


    function pluginsLoaded(plugins) {
        return _.extend.apply(_, plugins);
    }


    function getPluginsMeta(path,type) {
        return new Promise(function(resolve) {
            FileSystem.getDirectoryForPath(path).getContents(function(err, entries) {
                resolve({
                    directories: _.filter(entries, 'isDirectory').map(function(dir) {return dir.name;}),
                    path: path,
                    type : type
                });
            });
        });
    }


    return pluginManager;
});