41 lines
1.5 KiB
JavaScript
41 lines
1.5 KiB
JavaScript
const node = require('rollup-plugin-node-resolve');
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const commonjs = require('rollup-plugin-commonjs');
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// Parse the stamp file produced by Bazel from the version control system
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let version = '<unknown>';
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if (bazel_stamp_file) {
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const versionTag = require('fs')
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.readFileSync(bazel_stamp_file, {encoding: 'utf-8'})
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.split('\n')
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.find(s => s.startsWith('BUILD_SCM_VERSION'));
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// Don't assume BUILD_SCM_VERSION exists
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if (versionTag) {
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version = versionTag.split(' ')[1].trim();
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}
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}
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// Add 'use strict' to the bundle, https://github.com/angular/angular/pull/40456
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// When rollup build esm bundle of zone.js, there will be no 'use strict'
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// since all esm bundles are `strict`, but when webpack load the esm bundle,
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// because zone.js is a module without export and import, webpack is unable
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// to determine the bundle is `esm` module or not, so it doesn't add the 'use strict'
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// which webpack does to all other `esm` modules which has export or import.
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// And it causes issues such as https://github.com/angular/angular/issues/40215
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// `this` should be `undefined` but is assigned with `Window` instead.
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const banner = `'use strict';
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/**
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* @license Angular v${version}
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* (c) 2010-2020 Google LLC. https://angular.io/
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* License: MIT
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*/`;
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module.exports = {
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plugins: [
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node({
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mainFields: ['es2015', 'module', 'jsnext:main', 'main'],
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}),
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commonjs(),
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],
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output: {name: 'Zone', banner},
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}
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