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Le Minh TriandGitHub
770f4541b5
* fix(rollup-plugin): replace package rollup-plugin-terser by @rollup/plugin-terser fix #3136 * fix(deps): update minimum version of @rollup/plugin-terser to ^0.4.3
100 lines
3.2 KiB
JavaScript
100 lines
3.2 KiB
JavaScript
/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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const {babel} = require('@rollup/plugin-babel');
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const {nodeResolve} = require('@rollup/plugin-node-resolve');
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const asyncToPromises = require('babel-plugin-transform-async-to-promises');
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const replace = require('@rollup/plugin-replace');
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const terserPlugin = require('@rollup/plugin-terser');
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const constants = require('./constants');
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const getVersionsCDNUrl = require('./versioned-cdn-url');
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// See https://github.com/GoogleChrome/workbox/issues/1674
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const nameCache = {};
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module.exports = {
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// Every use of rollup should have minification and the replace
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// plugin set up and used to ensure as consist set of tests
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// as possible.
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getDefaultPlugins: (buildType, buildFormat = 'iife', es5 = false) => {
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const plugins = [nodeResolve()];
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const babelConfig = {
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babelHelpers: 'bundled',
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presets: [
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[
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'@babel/preset-env',
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{
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loose: true,
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targets: {
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browsers: es5
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? // If es5 is true, target IE11
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// https://github.com/browserslist/browserslist#queries
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['ie 11']
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: // This corresponds to the version of Chromium used by
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// Samsung Internet 6.x, which is the minimum non-evergreen
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// browser we currently support.
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['chrome >= 56'],
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},
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},
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],
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],
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};
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if (es5) {
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babelConfig.plugins = [asyncToPromises];
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}
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plugins.push(babel(babelConfig));
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const minifyBuild = buildType === constants.BUILD_TYPES.prod;
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if (minifyBuild) {
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const terserOptions = {
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nameCache,
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module: buildFormat === 'esm' ? true : false,
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mangle: {
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properties: {
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reserved: [
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// Chai will break unless we reserve this private variable.
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'_obj',
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// We need this to be exported correctly.
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'_private',
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// See https://github.com/GoogleChrome/workbox/issues/2686
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'_handle',
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],
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// mangle > properties > regex will allow terser to minify
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// private variable and names that start with a single underscore
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// followed by a letter. This restriction to avoid mangling
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// unintentional fields in our or other libraries code.
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regex: /^_[A-Za-z]/,
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// If you are getting an error due to a property mangle
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// set this flag to true and the property will be changed
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// from '_foo' to '$_foo$' to help diagnose the problem.
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debug: false,
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},
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},
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};
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plugins.push(terserPlugin(terserOptions));
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}
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// This is what the build should be
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const replaceOptions = {
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preventAssignment: true,
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WORKBOX_CDN_ROOT_URL: getVersionsCDNUrl(),
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};
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if (buildType) {
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replaceOptions['process.env.NODE_ENV'] = JSON.stringify(buildType);
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}
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// Replace allows us to input NODE_ENV and strip code accordingly
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plugins.push(replace(replaceOptions));
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return plugins;
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},
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};
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