Move a lot of miscellaneous code related to extensions into a new module
ExtensionUtils is a new module that has a lot of miscellaneous things related to loading extensions and the extension system put into a place that does not depend on Shell or St. Note that this will break extensions that have with multiple files by replacing the old uuid-based importer with an object directly on the meta object. https://bugzilla.gnome.org/show_bug.cgi?id=668429
This commit is contained in:
Jasper St. Pierre
parent
2f27b94757
commit
80ff6ff797
@ -9,6 +9,7 @@ nobase_dist_js_DATA = \
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gdm/powerMenu.js \
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misc/config.js \
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misc/docInfo.js \
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misc/extensionUtils.js \
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misc/fileUtils.js \
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misc/format.js \
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misc/gnomeSession.js \
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155
js/misc/extensionUtils.js
Normal file
155
js/misc/extensionUtils.js
Normal file
@ -0,0 +1,155 @@
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// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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// Common utils for the extension system and the extension
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// preferences tool
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const GLib = imports.gi.GLib;
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const Gio = imports.gi.Gio;
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const ShellJS = imports.gi.ShellJS;
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const Config = imports.misc.config;
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const ExtensionType = {
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SYSTEM: 1,
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PER_USER: 2
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};
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// GFile for user extensions
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var userExtensionsDir = null;
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/**
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* versionCheck:
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* @required: an array of versions we're compatible with
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* @current: the version we have
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*
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* Check if a component is compatible for an extension.
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* @required is an array, and at least one version must match.
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* @current must be in the format <major>.<minor>.<point>.<micro>
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* <micro> is always ignored
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* <point> is ignored if <minor> is even (so you can target the
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* whole stable release)
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* <minor> and <major> must match
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* Each target version must be at least <major> and <minor>
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*/
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function versionCheck(required, current) {
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let currentArray = current.split('.');
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let major = currentArray[0];
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let minor = currentArray[1];
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let point = currentArray[2];
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for (let i = 0; i < required.length; i++) {
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let requiredArray = required[i].split('.');
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if (requiredArray[0] == major &&
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requiredArray[1] == minor &&
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(requiredArray[2] == point ||
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(requiredArray[2] == undefined && parseInt(minor) % 2 == 0)))
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return true;
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}
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return false;
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}
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function isOutOfDate(meta) {
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if (!versionCheck(meta['shell-version'], Config.PACKAGE_VERSION))
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return true;
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if (meta['js-version'] && !versionCheck(meta['js-version'], Config.GJS_VERSION))
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return true;
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return false;
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}
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function loadMetadata(uuid, dir, type) {
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let info;
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let metadataFile = dir.get_child('metadata.json');
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if (!metadataFile.query_exists(null)) {
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throw new Error('Missing metadata.json');
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}
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let metadataContents, success, tag;
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try {
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[success, metadataContents, tag] = metadataFile.load_contents(null);
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} catch (e) {
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throw new Error('Failed to load metadata.json: ' + e);
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}
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let meta;
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try {
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meta = JSON.parse(metadataContents);
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} catch (e) {
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throw new Error('Failed to parse metadata.json: ' + e);
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}
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let requiredProperties = ['uuid', 'name', 'description', 'shell-version'];
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for (let i = 0; i < requiredProperties.length; i++) {
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let prop = requiredProperties[i];
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if (!meta[prop]) {
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throw new Error('missing "' + prop + '" property in metadata.json');
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}
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}
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// Encourage people to add this
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if (!meta.url) {
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global.log('Warning: Missing "url" property in metadata.json');
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}
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if (uuid != meta.uuid) {
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throw new Error('uuid "' + meta.uuid + '" from metadata.json does not match directory name "' + uuid + '"');
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}
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meta.type = type;
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meta.dir = dir;
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meta.path = dir.get_path();
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meta.error = '';
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return meta;
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}
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var _meta = null;
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function installImporter(meta) {
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_meta = meta;
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ShellJS.add_extension_importer('imports.misc.extensionUtils._meta', 'importer', meta.path);
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_meta = null;
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}
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function init() {
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let userExtensionsPath = GLib.build_filenamev([global.userdatadir, 'extensions']);
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userExtensionsDir = Gio.file_new_for_path(userExtensionsPath);
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try {
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if (!userExtensionsDir.query_exists(null))
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userExtensionsDir.make_directory_with_parents(null);
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} catch (e) {
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global.logError('' + e);
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}
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}
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function scanExtensionsInDirectory(callback, dir, type) {
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let fileEnum;
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let file, info;
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try {
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fileEnum = dir.enumerate_children('standard::*', Gio.FileQueryInfoFlags.NONE, null);
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} catch(e) {
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global.logError('' + e);
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return;
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}
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while ((info = fileEnum.next_file(null)) != null) {
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let fileType = info.get_file_type();
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if (fileType != Gio.FileType.DIRECTORY)
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continue;
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let uuid = info.get_name();
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let extensionDir = dir.get_child(uuid);
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callback(uuid, extensionDir, type);
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}
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fileEnum.close(null);
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}
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function scanExtensions(callback) {
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let systemDataDirs = GLib.get_system_data_dirs();
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for (let i = 0; i < systemDataDirs.length; i++) {
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let dirPath = GLib.build_filenamev([systemDataDirs[i], 'gnome-shell', 'extensions']);
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let dir = Gio.file_new_for_path(dirPath);
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if (dir.query_exists(null))
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scanExtensionsInDirectory(callback, dir, ExtensionType.SYSTEM);
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}
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scanExtensionsInDirectory(callback, userExtensionsDir, ExtensionType.PER_USER);
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}
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@ -8,10 +8,10 @@ const GLib = imports.gi.GLib;
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const Gio = imports.gi.Gio;
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const St = imports.gi.St;
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const Shell = imports.gi.Shell;
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const ShellJS = imports.gi.ShellJS;
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const Soup = imports.gi.Soup;
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const Config = imports.misc.config;
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const ExtensionUtils = imports.misc.extensionUtils;
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const FileUtils = imports.misc.fileUtils;
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const ModalDialog = imports.ui.modalDialog;
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@ -30,11 +30,6 @@ const ExtensionState = {
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UNINSTALLED: 99
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};
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const ExtensionType = {
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SYSTEM: 1,
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PER_USER: 2
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};
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const REPOSITORY_URL_BASE = 'https://extensions.gnome.org';
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const REPOSITORY_URL_DOWNLOAD = REPOSITORY_URL_BASE + '/download-extension/%s.shell-extension.zip';
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const REPOSITORY_URL_INFO = REPOSITORY_URL_BASE + '/extension-info/';
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@ -60,8 +55,6 @@ _httpSession.ssl_ca_file = _getCertFile();
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// Maps uuid -> metadata object
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const extensionMeta = {};
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// Maps uuid -> importer object (extension directory tree)
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const extensions = {};
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// Maps uuid -> extension state object (returned from init())
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const extensionStateObjs = {};
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// Contains the order that extensions were enabled in.
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@ -69,8 +62,6 @@ const extensionOrder = [];
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// Arrays of uuids
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var enabledExtensions;
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// GFile for user extensions
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var userExtensionsDir = null;
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// We don't really have a class to add signals on. So, create
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// a simple dummy object, add the signal methods, and export those
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@ -86,36 +77,6 @@ var errors = {};
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const ENABLED_EXTENSIONS_KEY = 'enabled-extensions';
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/**
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* versionCheck:
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* @required: an array of versions we're compatible with
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* @current: the version we have
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*
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* Check if a component is compatible for an extension.
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* @required is an array, and at least one version must match.
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* @current must be in the format <major>.<minor>.<point>.<micro>
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* <micro> is always ignored
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* <point> is ignored if <minor> is even (so you can target the
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* whole stable release)
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* <minor> and <major> must match
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* Each target version must be at least <major> and <minor>
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*/
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function versionCheck(required, current) {
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let currentArray = current.split('.');
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let major = currentArray[0];
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let minor = currentArray[1];
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let point = currentArray[2];
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for (let i = 0; i < required.length; i++) {
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let requiredArray = required[i].split('.');
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if (requiredArray[0] == major &&
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requiredArray[1] == minor &&
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(requiredArray[2] == point ||
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(requiredArray[2] == undefined && parseInt(minor) % 2 == 0)))
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return true;
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}
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return false;
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}
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function installExtensionFromUUID(uuid, version_tag) {
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let params = { uuid: uuid,
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version_tag: version_tag,
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@ -143,18 +104,13 @@ function uninstallExtensionFromUUID(uuid) {
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disableExtension(uuid);
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// Don't try to uninstall system extensions
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if (meta.type != ExtensionType.PER_USER)
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if (meta.type != ExtensionUtils.ExtensionType.PER_USER)
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return false;
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meta.state = ExtensionState.UNINSTALLED;
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_signals.emit('extension-state-changed', meta);
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delete extensionMeta[uuid];
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// Importers are marked as PERMANENT, so we can't do this.
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// delete extensions[uuid];
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extensions[uuid] = undefined;
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delete extensionStateObjs[uuid];
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delete errors[uuid];
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@ -179,7 +135,7 @@ function gotExtensionZipFile(session, message, uuid) {
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}
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let stream = new Gio.UnixOutputStream({ fd: fd });
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let dir = userExtensionsDir.get_child(uuid);
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let dir = ExtensionUtils.userExtensionsDir.get_child(uuid);
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Shell.write_soup_message_to_stream(stream, message);
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stream.close(null);
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let [success, pid] = GLib.spawn_async(null,
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@ -203,7 +159,7 @@ function gotExtensionZipFile(session, message, uuid) {
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global.settings.set_strv(ENABLED_EXTENSIONS_KEY, enabledExtensions);
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}
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loadExtension(dir, ExtensionType.PER_USER, true);
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loadExtension(dir, ExtensionUtils.ExtensionType.PER_USER, true);
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});
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}
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@ -299,65 +255,26 @@ function logExtensionError(uuid, message, state) {
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}
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function loadExtension(dir, type, enabled) {
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let info;
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let uuid = dir.get_basename();
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let metadataFile = dir.get_child('metadata.json');
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if (!metadataFile.query_exists(null)) {
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logExtensionError(uuid, 'Missing metadata.json');
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return;
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}
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let metadataContents;
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try {
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metadataContents = Shell.get_file_contents_utf8_sync(metadataFile.get_path());
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} catch (e) {
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logExtensionError(uuid, 'Failed to load metadata.json: ' + e);
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return;
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}
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let meta;
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if (extensionMeta[uuid] != undefined) {
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throw new Error('extension already loaded');
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}
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try {
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meta = JSON.parse(metadataContents);
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} catch (e) {
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logExtensionError(uuid, 'Failed to parse metadata.json: ' + e);
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return;
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}
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let requiredProperties = ['uuid', 'name', 'description', 'shell-version'];
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for (let i = 0; i < requiredProperties.length; i++) {
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let prop = requiredProperties[i];
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if (!meta[prop]) {
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logExtensionError(uuid, 'missing "' + prop + '" property in metadata.json');
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return;
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}
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}
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if (extensions[uuid] != undefined) {
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logExtensionError(uuid, 'extension already loaded');
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return;
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}
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// Encourage people to add this
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if (!meta['url']) {
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global.log('Warning: Missing "url" property in metadata.json');
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}
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if (uuid != meta.uuid) {
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logExtensionError(uuid, 'uuid "' + meta.uuid + '" from metadata.json does not match directory name "' + uuid + '"');
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meta = ExtensionUtils.loadMetadata(uuid, dir, type);
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} catch(e) {
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logExtensionError(uuid, e.message);
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return;
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}
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extensionMeta[uuid] = meta;
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meta.type = type;
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meta.dir = dir;
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meta.path = dir.get_path();
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meta.error = '';
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// Default to error, we set success as the last step
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meta.state = ExtensionState.ERROR;
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if (!versionCheck(meta['shell-version'], Config.PACKAGE_VERSION) ||
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(meta['js-version'] && !versionCheck(meta['js-version'], Config.GJS_VERSION))) {
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if (ExtensionUtils.isOutOfDate(meta)) {
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logExtensionError(uuid, 'extension is not compatible with current GNOME Shell and/or GJS version', ExtensionState.OUT_OF_DATE);
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meta.state = ExtensionState.OUT_OF_DATE;
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return;
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@ -389,8 +306,8 @@ function loadExtension(dir, type, enabled) {
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let extensionModule;
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let extensionState = null;
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try {
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ShellJS.add_extension_importer('imports.ui.extensionSystem.extensions', meta.uuid, dir.get_path());
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extensionModule = extensions[meta.uuid].extension;
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ExtensionUtils.installImporter(meta);
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extensionModule = meta.importer.extension;
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} catch (e) {
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if (stylesheetPath != null)
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theme.unload_stylesheet(stylesheetPath);
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@ -457,50 +374,17 @@ function onEnabledExtensionsChanged() {
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}
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function init() {
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let userExtensionsPath = GLib.build_filenamev([global.userdatadir, 'extensions']);
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userExtensionsDir = Gio.file_new_for_path(userExtensionsPath);
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try {
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if (!userExtensionsDir.query_exists(null))
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userExtensionsDir.make_directory_with_parents(null);
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} catch (e) {
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global.logError('' + e);
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}
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ExtensionUtils.init();
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global.settings.connect('changed::' + ENABLED_EXTENSIONS_KEY, onEnabledExtensionsChanged);
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enabledExtensions = global.settings.get_strv(ENABLED_EXTENSIONS_KEY);
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}
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function _loadExtensionsIn(dir, type) {
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let fileEnum;
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let file, info;
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try {
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fileEnum = dir.enumerate_children('standard::*', Gio.FileQueryInfoFlags.NONE, null);
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} catch (e) {
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global.logError('' + e);
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return;
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}
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while ((info = fileEnum.next_file(null)) != null) {
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let fileType = info.get_file_type();
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if (fileType != Gio.FileType.DIRECTORY)
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continue;
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let name = info.get_name();
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let child = dir.get_child(name);
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let enabled = enabledExtensions.indexOf(name) != -1;
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loadExtension(child, type, enabled);
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}
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fileEnum.close(null);
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}
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function loadExtensions() {
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let systemDataDirs = GLib.get_system_data_dirs();
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for (let i = 0; i < systemDataDirs.length; i++) {
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let dirPath = systemDataDirs[i] + '/gnome-shell/extensions';
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let dir = Gio.file_new_for_path(dirPath);
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if (dir.query_exists(null))
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_loadExtensionsIn(dir, ExtensionType.SYSTEM);
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}
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_loadExtensionsIn(userExtensionsDir, ExtensionType.PER_USER);
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ExtensionUtils.scanExtensions(function(uuid, dir, type) {
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let enabled = enabledExtensions.indexOf(uuid) != -1;
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loadExtension(dir, type, enabled);
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});
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}
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const InstallExtensionDialog = new Lang.Class({
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Loading…
Reference in New Issue
Block a user