mirror of
https://github.com/Microsoft/vscode
synced 2024-10-13 06:48:17 +00:00
240 lines
9.3 KiB
JavaScript
240 lines
9.3 KiB
JavaScript
/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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'use strict';
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Object.defineProperty(exports, "__esModule", { value: true });
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var es = require("event-stream");
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var gulp = require("gulp");
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var concat = require("gulp-concat");
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var minifyCSS = require("gulp-cssnano");
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var filter = require("gulp-filter");
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var flatmap = require("gulp-flatmap");
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var sourcemaps = require("gulp-sourcemaps");
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var uglify = require("gulp-uglify");
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var composer = require("gulp-uglify/composer");
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var gulpUtil = require("gulp-util");
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var path = require("path");
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var pump = require("pump");
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var uglifyes = require("uglify-es");
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var VinylFile = require("vinyl");
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var bundle = require("./bundle");
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var i18n_1 = require("./i18n");
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var stats_1 = require("./stats");
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var util = require("./util");
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var REPO_ROOT_PATH = path.join(__dirname, '../..');
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function log(prefix, message) {
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gulpUtil.log(gulpUtil.colors.cyan('[' + prefix + ']'), message);
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}
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function loaderConfig(emptyPaths) {
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var result = {
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paths: {
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'vs': 'out-build/vs',
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'vscode': 'empty:'
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},
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nodeModules: emptyPaths || []
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};
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result['vs/css'] = { inlineResources: true };
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return result;
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}
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exports.loaderConfig = loaderConfig;
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var IS_OUR_COPYRIGHT_REGEXP = /Copyright \(C\) Microsoft Corporation/i;
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function loader(src, bundledFileHeader, bundleLoader) {
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var sources = [
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src + "/vs/loader.js"
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];
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if (bundleLoader) {
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sources = sources.concat([
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src + "/vs/css.js",
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src + "/vs/nls.js"
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]);
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}
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var isFirst = true;
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return (gulp
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.src(sources, { base: "" + src })
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.pipe(es.through(function (data) {
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if (isFirst) {
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isFirst = false;
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this.emit('data', new VinylFile({
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path: 'fake',
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base: '',
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contents: Buffer.from(bundledFileHeader)
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}));
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this.emit('data', data);
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}
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else {
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this.emit('data', data);
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}
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}))
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.pipe(util.loadSourcemaps())
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.pipe(concat('vs/loader.js'))
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.pipe(es.mapSync(function (f) {
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f.sourceMap.sourceRoot = util.toFileUri(path.join(REPO_ROOT_PATH, 'src'));
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return f;
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})));
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}
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function toConcatStream(src, bundledFileHeader, sources, dest) {
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var useSourcemaps = /\.js$/.test(dest) && !/\.nls\.js$/.test(dest);
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// If a bundle ends up including in any of the sources our copyright, then
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// insert a fake source at the beginning of each bundle with our copyright
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var containsOurCopyright = false;
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for (var i = 0, len = sources.length; i < len; i++) {
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var fileContents = sources[i].contents;
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if (IS_OUR_COPYRIGHT_REGEXP.test(fileContents)) {
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containsOurCopyright = true;
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break;
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}
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}
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if (containsOurCopyright) {
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sources.unshift({
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path: null,
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contents: bundledFileHeader
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});
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}
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var treatedSources = sources.map(function (source) {
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var root = source.path ? REPO_ROOT_PATH.replace(/\\/g, '/') : '';
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var base = source.path ? root + ("/" + src) : '';
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return new VinylFile({
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path: source.path ? root + '/' + source.path.replace(/\\/g, '/') : 'fake',
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base: base,
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contents: Buffer.from(source.contents)
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});
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});
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return es.readArray(treatedSources)
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.pipe(useSourcemaps ? util.loadSourcemaps() : es.through())
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.pipe(concat(dest))
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.pipe(stats_1.createStatsStream(dest));
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}
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function toBundleStream(src, bundledFileHeader, bundles) {
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return es.merge(bundles.map(function (bundle) {
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return toConcatStream(src, bundledFileHeader, bundle.sources, bundle.dest);
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}));
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}
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function optimizeTask(opts) {
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var src = opts.src;
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var entryPoints = opts.entryPoints;
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var otherSources = opts.otherSources;
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var resources = opts.resources;
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var loaderConfig = opts.loaderConfig;
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var bundledFileHeader = opts.header;
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var bundleLoader = (typeof opts.bundleLoader === 'undefined' ? true : opts.bundleLoader);
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var out = opts.out;
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return function () {
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var bundlesStream = es.through(); // this stream will contain the bundled files
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var resourcesStream = es.through(); // this stream will contain the resources
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var bundleInfoStream = es.through(); // this stream will contain bundleInfo.json
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bundle.bundle(entryPoints, loaderConfig, function (err, result) {
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if (err) {
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return bundlesStream.emit('error', JSON.stringify(err));
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}
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toBundleStream(src, bundledFileHeader, result.files).pipe(bundlesStream);
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// Remove css inlined resources
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var filteredResources = resources.slice();
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result.cssInlinedResources.forEach(function (resource) {
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if (process.env['VSCODE_BUILD_VERBOSE']) {
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log('optimizer', 'excluding inlined: ' + resource);
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}
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filteredResources.push('!' + resource);
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});
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gulp.src(filteredResources, { base: "" + src }).pipe(resourcesStream);
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var bundleInfoArray = [];
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if (opts.bundleInfo) {
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bundleInfoArray.push(new VinylFile({
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path: 'bundleInfo.json',
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base: '.',
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contents: Buffer.from(JSON.stringify(result.bundleData, null, '\t'))
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}));
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}
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es.readArray(bundleInfoArray).pipe(bundleInfoStream);
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});
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var otherSourcesStream = es.through();
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var otherSourcesStreamArr = [];
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gulp.src(otherSources, { base: "" + src })
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.pipe(es.through(function (data) {
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otherSourcesStreamArr.push(toConcatStream(src, bundledFileHeader, [data], data.relative));
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}, function () {
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if (!otherSourcesStreamArr.length) {
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setTimeout(function () { otherSourcesStream.emit('end'); }, 0);
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}
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else {
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es.merge(otherSourcesStreamArr).pipe(otherSourcesStream);
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}
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}));
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var result = es.merge(loader(src, bundledFileHeader, bundleLoader), bundlesStream, otherSourcesStream, resourcesStream, bundleInfoStream);
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return result
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.pipe(sourcemaps.write('./', {
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sourceRoot: null,
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addComment: true,
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includeContent: true
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}))
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.pipe(opts.languages && opts.languages.length ? i18n_1.processNlsFiles({
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fileHeader: bundledFileHeader,
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languages: opts.languages
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}) : es.through())
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.pipe(gulp.dest(out));
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};
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}
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exports.optimizeTask = optimizeTask;
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/**
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* Wrap around uglify and allow the preserveComments function
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* to have a file "context" to include our copyright only once per file.
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*/
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function uglifyWithCopyrights() {
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var preserveComments = function (f) {
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return function (node, comment) {
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var text = comment.value;
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var type = comment.type;
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if (/@minifier_do_not_preserve/.test(text)) {
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return false;
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}
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var isOurCopyright = IS_OUR_COPYRIGHT_REGEXP.test(text);
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if (isOurCopyright) {
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if (f.__hasOurCopyright) {
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return false;
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}
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f.__hasOurCopyright = true;
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return true;
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}
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if ('comment2' === type) {
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// check for /*!. Note that text doesn't contain leading /*
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return (text.length > 0 && text[0] === '!') || /@preserve|license|@cc_on|copyright/i.test(text);
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}
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else if ('comment1' === type) {
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return /license|copyright/i.test(text);
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}
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return false;
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};
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};
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var minify = composer(uglifyes);
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var input = es.through();
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var output = input
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.pipe(flatmap(function (stream, f) {
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return stream.pipe(minify({
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output: {
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comments: preserveComments(f),
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max_line_len: 1024
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}
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}));
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}));
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return es.duplex(input, output);
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}
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function minifyTask(src, sourceMapBaseUrl) {
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var sourceMappingURL = sourceMapBaseUrl && (function (f) { return sourceMapBaseUrl + "/" + f.relative + ".map"; });
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return function (cb) {
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var jsFilter = filter('**/*.js', { restore: true });
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var cssFilter = filter('**/*.css', { restore: true });
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pump(gulp.src([src + '/**', '!' + src + '/**/*.map']), jsFilter, sourcemaps.init({ loadMaps: true }), uglifyWithCopyrights(), jsFilter.restore, cssFilter, minifyCSS({ reduceIdents: false }), cssFilter.restore, sourcemaps.write('./', {
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sourceMappingURL: sourceMappingURL,
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sourceRoot: null,
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includeContent: true,
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addComment: true
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}), gulp.dest(src + '-min'), function (err) {
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if (err instanceof uglify.GulpUglifyError) {
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console.error("Uglify error in '" + (err.cause && err.cause.filename) + "'");
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}
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cb(err);
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});
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};
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}
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exports.minifyTask = minifyTask;
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