Github user vladimir-kotikov commented on a diff in the pull request:
https://github.com/apache/cordova-lib/pull/235#discussion_r31924092
--- Diff: cordova-lib/src/platforms/PlatformApi.js ---
@@ -0,0 +1,365 @@
+/**
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied. See the License for the
+ specific language governing permissions and limitations
+ under the License.
+*/
+
+var Q = require('q'),
+ fs = require('fs'),
+ path = require('path'),
+ shell = require('shelljs'),
+ events = require('../events'),
+ util = require('../cordova/util'),
+ superspawn = require('../cordova/superspawn'),
+ platforms = require('./platformsConfig.json'),
+ ConfigParser = require('../configparser/ConfigParser');
+
+var BasePluginHandler = require('../plugman/platforms/PluginHandler');
+var ParserHelper =
require('../cordova/metadata/parserhelper/ParserHelper');
+
+// Avoid loading the same platform projects more than once (identified by
path)
+var cachedProjects = {};
+
+// A single class that exposes functionality from platform specific files
from
+// both places cordova/metadata and plugman/platforms. Hopefully, to be
soon
+// replaced by real unified platform specific classes.
+function BasePlatformApi(platform, platformRootDir) {
+ this.root = platformRootDir;
+ this.platform = platform;
+
+ // Parser property of Platform API left for backward compatibility
+ // and smooth transition to ne API. It also does the job of requiring
+ // and constructing legacy Parser instance, which required for
platforms
+ // that still stores their code in cordova-lib.
+ var parser;
+ Object.defineProperty(this, 'parser', {
+ get: function () {
+ if (parser)return parser;
+
+ var ParserConstructor;
+ try {
+ ParserConstructor =
require(platforms[this.platform].parser_file);
+ } catch (e) { }
+
+ // parser === null is the special case which means that we've
tried
+ // to get embedded platform parser and failed. In this case
instead of
+ // parser's methods will be called PlatformApi default
implementations.
+ parser = ParserConstructor ? new ParserConstructor(this.root)
: null;
+ return parser;
+ },
+ configurable: true
+ });
+
+ // Extend with a ParserHelper instance
+ Object.defineProperty(this, 'helper', {
+ value: new ParserHelper(this.platform),
+ enumerable: true,
+ configurable: false,
+ writable: false
+ });
+}
+
+/**
+ * Gets a plugin handler (former 'handler') for this project's platform.
+ * Platform can provide it's own implementation for PluginHandler by
+ * exposing PlatformApi.PluginHandler constructor. If platform doesn't
+ * provides its own implementation, then embedded PluginHandler will be
used.
+ * (Taken from platformConfig.json/<platform>/handler_file field)
+ *
+ * @return {PluginHandler} Instance of PluginHandler class that exposes
+ * platform-related functionality for
cordova.
+ */
+BasePlatformApi.prototype.getPluginHandler = function() {
+ if (!this._pluginHandler) {
+ var PluginHandler = BasePluginHandler;
+ var PluginHandlerImpl;
+
+ // Try find whether platform exposes its' API via js module
+ var platformApiModule = path.join(this.root, 'cordova', 'Api.js');
+ if (fs.existsSync(platformApiModule)) {
+ PluginHandlerImpl = require(platformApiModule).PluginHandler;
+ }
+
+ if (!PluginHandlerImpl) {
+ // If platform doesn't provide PluginHandler, use embedded one
for current platform
+ // The platform implementation, shipped with cordova-lib,
isn't constructable so
+ // we need to create a dummy class and copy implementation to
its prototype.
+ var LegacyPluginHandler = function LegacyPluginHandler () {};
+ LegacyPluginHandler.prototype =
require(platforms[this.platform].handler_file);
+ PluginHandlerImpl = LegacyPluginHandler;
+ }
+
+ // Extend BasePlatformApi with platform implementation.
+ PluginHandler = inherit(PluginHandlerImpl, BasePluginHandler);
+ this._pluginHandler = new PluginHandler();
+ }
+
+ return this._pluginHandler;
+};
+
+BasePlatformApi.prototype.getInstaller = function(type) {
+ var self = this;
+ function installWrapper(item, plugin_dir, plugin_id, options, project)
{
+ self.getPluginHandler()[type].install(item, plugin_dir, self.root,
plugin_id, options, project);
+ }
+ return installWrapper;
+};
+
+BasePlatformApi.prototype.getUninstaller = function(type) {
+ var self = this;
+ function uninstallWrapper(item, plugin_id, options, project) {
+ self.getPluginHandler()[type].uninstall(item, self.root,
plugin_id, options, project);
+ }
+ return uninstallWrapper;
+};
+
+/**
+ * Base implementation for getConfigXml. Assumes that config.xml
+ * is placed at the root of project.
+ * @return {String} Path to platform's config.xml file
+ */
+BasePlatformApi.prototype.getConfigXml = function() {
+ if (this.parser && this.parser.config_xml) {
+ return this.parser.config_xml();
+ }
+
+ return path.join(this.root, 'config.xml');
+};
+
+/**
+ * Base implementation for updateConfig. Reset platform's config to
default.
+ * @return {String} Path to platform's config.xml file
+ */
+BasePlatformApi.prototype.updateConfig = function(optSource) {
+ var defaultConfig = path.join(this.root, 'cordova', 'defaults.xml');
+ var ownConfig = this.getConfigXml();
+ // If defaults.xml is present, overwrite platform config.xml with it
+ if (fs.existsSync(defaultConfig)) {
+ shell.cp('-f', defaultConfig, ownConfig);
+ events.emit('verbose', 'Generating config.xml from defaults for
platform "' + this.platform + '"');
+ } else {
+ shell.cp('-f', ownConfig, defaultConfig);
+ }
+
+ // Update platform config.xml based on top level config.xml
+ var baseConfig = optSource ||
util.projectConfig(util.isCordova(this.root));
+
+ var baseCfg = new ConfigParser(baseConfig);
+ var ownCfg = new ConfigParser(ownConfig);
+ util.mergeXml(baseCfg.doc.getroot(), ownCfg.doc.getroot(),
this.platform, true);
+
+ // CB-6976 Windows Universal Apps. For smooth transition and to
prevent mass api failures
+ // we allow using windows8 tag for new windows platform
+ // TODO: this section should be moved to windows platform's
implementation of PlatformApi
+ if (this.platform == 'windows') {
+ util.mergeXml(baseCfg.doc.getroot(), ownCfg.doc.getroot(),
'windows8', true);
+ }
+
+ return Q.when(ownCfg.write());
+};
+
+/**
+ * Base implementation for getWwwDir. Assumes that
+ * www directory is placed at the root of project.
+ * @return {String} Path to platform's www directory.
+ */
+BasePlatformApi.prototype.getWwwDir = function() {
+ if (this.parser && this.parser.www_dir) {
+ return this.parser.www_dir();
+ }
+
+ return path.join(this.root, 'www');
+};
+
+/**
+ * Base implementation for getCordovaJsSrc. Assumes that cordova.js
+ * source is placed at the root of platform's source dir.
+ * @return {String} Path to platform's 'cordova-js-src' folder.
+ */
+BasePlatformApi.prototype.getCordovaJsSrc = function(platformSource) {
+ if (this.parser && this.parser.cordovajs_src_path) {
+ return this.parser.cordovajs_src_path(platformSource);
+ }
+
+ return path.resolve(platformSource, 'cordova-js-src');
+};
+
+/**
+ * Base implementation for updateWww.
+ * @param {string} [wwwSource] Source dir for www files. If not provided,
method
+ * will try to find www directory from cordova
project
+ */
+BasePlatformApi.prototype.updateWww = function(wwwSource) {
+ if (this.parser && this.parser.update_www) {
+ return Q.when(this.parser.update_www());
+ }
+
+ if (!wwwSource) {
+ var projectRoot = util.isCordova(this.root);
+ wwwSource = util.projectWww(projectRoot);
+ }
+ var platformWww = path.join(this.root, 'platform_www');
+
+ // Clear the www dir
+ shell.rm('-rf', this.getWwwDir());
+ shell.mkdir(this.getWwwDir());
+ // Copy over all app www assets
+ shell.cp('-rf', path.join(wwwSource, '*'), this.getWwwDir());
+ // Copy over stock platform www assets (cordova.js)
+ runShellSilent(function () {
+ shell.cp('-rf', path.join(platformWww, '*'), this.getWwwDir());
+ }.bind(this));
+
+ return Q();
+};
+
+/**
+ * Base implementation for updateProject. Does nothing
+ * since implementation is heavily depends on platform specifics.
+ * Always should be overridden by platform.
+ */
+BasePlatformApi.prototype.updateProject = function(configSource) {
+ if (this.parser && this.parser.update_project) {
+ var configParser = new ConfigParser(configSource ||
this.getConfigXml());
+ return Q.when(this.parser.update_project(configParser));
+ }
+ return Q();
--- End diff --
Well, in some cases platform may want to do nothing in `updateProject`.
Example is a browser platform, which needs to update config.xml and www
content only during prepare.
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