2015-11-13 13:39:38 +00:00
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/*---------------------------------------------------------------------------------------------
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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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var path = require('path');
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var gulp = require('gulp');
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var sourcemaps = require('gulp-sourcemaps');
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var filter = require('gulp-filter');
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var minifyCSS = require('gulp-minify-css');
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var uglify = require('gulp-uglify');
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var es = require('event-stream');
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var concat = require('gulp-concat');
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var File = require('vinyl');
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var underscore = require('underscore');
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var bundle = require('./build/lib/bundle');
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var util = require('./build/lib/util');
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var tsOptions = {
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target: 'ES5',
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module: 'amd',
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verbose: true,
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preserveConstEnums: true,
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experimentalDecorators: true,
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sourceMap: true,
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rootDir: path.join(__dirname, 'src')
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};
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exports.loaderConfig = function (emptyPaths) {
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var result = {
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paths: {
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'vs': 'out-build/vs',
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'vs/extensions': 'extensions',
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'vscode': 'empty:',
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'lib': 'out-build/lib'
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},
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'vs/text': {
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paths: {
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'vs/extensions': 'extensions'
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}
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}
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};
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(emptyPaths || []).forEach(function(m) { result.paths[m] = 'empty:'; });
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return result;
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};
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2015-11-16 10:22:39 +00:00
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var IS_OUR_COPYRIGHT_REGEXP = /Copyright \(C\) Microsoft Corporation/i;
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2015-11-13 13:39:38 +00:00
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function loader() {
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return gulp.src([
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'out-build/vs/loader.js',
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'out-build/vs/css.js',
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'out-build/vs/nls.js',
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'out-build/vs/text.js'
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], { base: 'out-build' })
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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(tsOptions.rootDir);
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return f;
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}));
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}
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function toBundleStream(bundles) {
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return es.merge(bundles.map(function(bundle) {
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var useSourcemaps = /\.js$/.test(bundle.dest) && !/\.nls\.js$/.test(bundle.dest);
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var sources = bundle.sources.map(function(source) {
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var root = source.path ? __dirname.replace(/\\/g, '/') : '';
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var base = source.path ? root + '/out-build' : '';
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return new File({
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path: source.path ? root + '/' + source.path.replace(/\\/g, '/') : 'fake',
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base: base,
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contents: new Buffer(source.contents)
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});
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});
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return es.readArray(sources)
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.pipe(useSourcemaps ? util.loadSourcemaps() : es.through())
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.pipe(concat(bundle.dest));
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}));
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}
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exports.optimizeTask = function(entryPoints, resources, loaderConfig, out) {
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return function() {
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var bundles = es.through();
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bundle.bundle(entryPoints, loaderConfig, function(err, result) {
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if (err) { return bundles.emit('error', JSON.stringify(err)); }
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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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result.forEach(function(b) {
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var containsOurCopyright = false;
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for (var i = 0, len = b.sources.length; i < len; i++) {
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var fileContents = b.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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b.sources.unshift({
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path: null,
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contents: [
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'/*!--------------------------------------------------------',
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' * Copyright (C) Microsoft Corporation. All rights reserved.',
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' *--------------------------------------------------------*/'
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].join('\r\n')
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});
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}
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});
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var bundleInformation = result.map(function (b) {
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return {
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dest: b.dest,
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sources: b.sources.filter(function (s) {
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return !!s.path;
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}).map(function (s) {
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return path.relative('out-build', s.path);
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})
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}
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});
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var info = es.readArray([new File({
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path: 'bundles.json',
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contents: new Buffer(JSON.stringify(bundleInformation), 'utf8')
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})]);
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es.merge(toBundleStream(result), info).pipe(bundles);
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});
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var result = es.merge(
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loader(),
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bundles,
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gulp.src(resources, { base: 'out-build' })
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);
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return result
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.pipe(sourcemaps.write('./', {
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sourceRoot: null,
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addComment: false,
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includeContent: true
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}))
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.pipe(gulp.dest(out));
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};
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};
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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 currentFileHasOurCopyright = false;
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var onNewFile = function() {
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currentFileHasOurCopyright = false;
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};
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var preserveComments = 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 (currentFileHasOurCopyright) {
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return false;
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}
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currentFileHasOurCopyright = 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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} 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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var uglifyStream = uglify({ preserveComments: preserveComments });
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return es.through(function write(data) {
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var _this = this;
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onNewFile();
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uglifyStream.once('data', function(data) {
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_this.emit('data', data);
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})
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uglifyStream.write(data);
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}, function end() {
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this.emit('end')
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});
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}
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exports.minifyTask = function (src) {
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return function() {
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var jsFilter = filter('**/*.js', { restore: true });
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var cssFilter = filter('**/*.css', { restore: true });
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return gulp.src([src + '/**', '!' + src + '/**/*.map'])
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.pipe(jsFilter)
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.pipe(sourcemaps.init({ loadMaps: true }))
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.pipe(uglifyWithCopyrights())
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.pipe(jsFilter.restore)
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.pipe(cssFilter)
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.pipe(minifyCSS())
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.pipe(cssFilter.restore)
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.pipe(sourcemaps.write('./', {
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sourceRoot: null,
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includeContent: true,
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addComment: false
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}))
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.pipe(gulp.dest(src + '-min'));
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};
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};
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