1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/mozapps/installer/precompile_cache.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,94 @@
1.4 +/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:set ts=2 sw=2 sts=2 et: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +// see http://mxr.mozilla.org/mozilla-central/source/services/sync/Weave.js#76
1.11 +
1.12 +const Cc = Components.classes;
1.13 +const Ci = Components.interfaces;
1.14 +const Cu = Components.utils;
1.15 +
1.16 +Cu.import("resource://gre/modules/Services.jsm");
1.17 +
1.18 +const rph = Services.io.getProtocolHandler("resource").QueryInterface(Ci.nsIResProtocolHandler);
1.19 +
1.20 +function endsWith(str, end) {
1.21 + return str.slice(-end.length) == end;
1.22 +}
1.23 +
1.24 +function jar_entries(jarReader, pattern) {
1.25 + var entries = [];
1.26 + var enumerator = jarReader.findEntries(pattern);
1.27 + while (enumerator.hasMore()) {
1.28 + entries.push(enumerator.getNext());
1.29 + }
1.30 + return entries;
1.31 +}
1.32 +
1.33 +function dir_entries(baseDir, subpath, ext) {
1.34 + var dir = baseDir.clone();
1.35 + dir.append(subpath);
1.36 + var enumerator = dir.directoryEntries;
1.37 + var entries = [];
1.38 + while (enumerator.hasMoreElements()) {
1.39 + var file = enumerator.getNext().QueryInterface(Ci.nsIFile);
1.40 + if (file.isDirectory()) {
1.41 + entries = entries.concat(dir_entries(dir, file.leafName, ext).map(function(p) subpath + "/" + p));
1.42 + } else if (endsWith(file.leafName, ext)) {
1.43 + entries.push(subpath + "/" + file.leafName);
1.44 + }
1.45 + }
1.46 + return entries;
1.47 +}
1.48 +
1.49 +function get_modules_under(uri) {
1.50 + if (uri instanceof Ci.nsIJARURI) {
1.51 + var jar = uri.QueryInterface(Ci.nsIJARURI);
1.52 + var jarReader = Cc["@mozilla.org/libjar/zip-reader;1"].createInstance(Ci.nsIZipReader);
1.53 + var file = jar.JARFile.QueryInterface(Ci.nsIFileURL);
1.54 + jarReader.open(file.file);
1.55 + var entries = jar_entries(jarReader, "components/*.js")
1.56 + .concat(jar_entries(jarReader, "modules/*.js"))
1.57 + .concat(jar_entries(jarReader, "modules/*.jsm"));
1.58 + jarReader.close();
1.59 + return entries;
1.60 + } else if (uri instanceof Ci.nsIFileURL){
1.61 + var file = uri.QueryInterface(Ci.nsIFileURL);
1.62 + return dir_entries(file.file, "components", ".js")
1.63 + .concat(dir_entries(file.file, "modules", ".js"))
1.64 + .concat(dir_entries(file.file, "modules", ".jsm"));
1.65 + } else {
1.66 + throw "Expected a nsIJARURI or nsIFileURL";
1.67 + }
1.68 +}
1.69 +
1.70 +function load_modules_under(spec, uri) {
1.71 + var entries = get_modules_under(uri).sort();
1.72 + // The precompilation of JS here sometimes reports errors, which we don't
1.73 + // really care about. But if the errors are ever reported to xpcshell's
1.74 + // error reporter, it will cause it to return an error code, which will break
1.75 + // automation. Currently they won't be, because the component loader spins up
1.76 + // its JSContext before xpcshell has time to set its context callback (which
1.77 + // overrides the error reporter on all newly-created JSContexts). But as we
1.78 + // move towards a singled-cxed browser, we'll run into this. So let's be
1.79 + // forward-thinking and deal with it now.
1.80 + ignoreReportedErrors(true);
1.81 + for each (let entry in entries) {
1.82 + try {
1.83 + dump(spec + entry + "\n");
1.84 + Cu.import(spec + entry, null);
1.85 + } catch(e) {}
1.86 + }
1.87 + ignoreReportedErrors(false);
1.88 +}
1.89 +
1.90 +function resolveResource(spec) {
1.91 + var uri = Services.io.newURI(spec, null, null);
1.92 + return Services.io.newURI(rph.resolveURI(uri), null, null);
1.93 +}
1.94 +
1.95 +function precompile_startupcache(uri) {
1.96 + load_modules_under(uri, resolveResource(uri));
1.97 +}
