90 lines
3.1 KiB
JavaScript
90 lines
3.1 KiB
JavaScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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// Rollup configuration
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// GENERATED BY Bazel
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const buildOptimizer =
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require('@angular-devkit/build-optimizer/src/build-optimizer/rollup-plugin.js');
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const nodeResolve = require('rollup-plugin-node-resolve');
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const sourcemaps = require('rollup-plugin-sourcemaps');
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const commonjs = require('rollup-plugin-commonjs');
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const path = require('path');
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const fs = require('fs');
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function log_verbose(...m) {
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// This is a template file so we use __filename to output the actual filename
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if (!!process.env['VERBOSE_LOGS']) console.error(`[${path.basename(__filename)}]`, ...m);
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}
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// Substitutions from the `ng_rollup_bundle` macro. We want to conditionally toggle
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// build optimizer, support optional banner files, and generally respect the current
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// compilation mode (i.e. Ivy or View Engine) as that affects module resolution.
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const useBuildOptimizer = TMPL_build_optimizer;
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const bannerFile = TMPL_banner_file;
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const ivyEnabled = 'TMPL_angular_ivy_enabled' === 'True';
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// `bazel_version_file` is a substitution that is applied by `@bazel/rollup`.
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const stampDataFile = bazel_version_file;
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log_verbose(`running with
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cwd: ${process.cwd()}
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useBuildOptimizer: ${useBuildOptimizer}
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bannerFile: ${bannerFile}
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stampDataFile: ${stampDataFile}
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ivyEnabled: ${ivyEnabled}
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`);
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const plugins = [
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nodeResolve({
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// If Ivy is enabled, we need to make sure that the module resolution prioritizes ngcc
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// processed entry-point fields. Ngcc adds special fields to `package.json` files of
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// modules that have been processed. Prioritizing these fields matches the Angular CLIs
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// behavior for supporting Ivy. We need to support ngcc because `ng_rollup_bundle` rule is
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// shared with other repositories that consume Angular from NPM (w/ ngcc).
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// https://github.com/angular/angular-cli/blob/1a1ceb609b9a87c4021cce3a6f0fc6d167cd09d2/packages/ngtools/webpack/src/angular_compiler_plugin.ts#L918-L920
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mainFields: ivyEnabled ? ['module_ivy_ngcc', 'main_ivy_ngcc', 'module', 'main'] :
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['module', 'main'],
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}),
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commonjs({ignoreGlobal: true}),
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sourcemaps(),
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];
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if (useBuildOptimizer) {
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plugins.unshift(buildOptimizer.default({
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sideEffectFreeModules: [],
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}));
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}
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module.exports = {
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plugins,
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external: [TMPL_external],
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output: {
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globals: {TMPL_globals},
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banner: extractBannerIfConfigured(),
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}
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};
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/** Extracts the top-level bundle banner if specified. */
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function extractBannerIfConfigured() {
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if (!bannerFile) {
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return undefined;
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}
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let banner = fs.readFileSync(bannerFile, 'utf8');
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if (stampDataFile) {
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const versionTag = fs.readFileSync(stampDataFile, 'utf8')
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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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const version = versionTag.split(' ')[1].trim();
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banner = banner.replace(/0.0.0-PLACEHOLDER/, version);
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}
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}
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return banner;
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}
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