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https://github.com/status-im/react-native.git
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9d09efdd53
Summary:Make packager transform files before extracting their dependencies. This allows us to extract dependencies added by transforms (and to avoid including them manually). It also allows for better optimization and to get rid of the “whole program optimization” step: This diff utilizes the new worker introduced in D2976677 / d94a567 – that means that minified builds inline the following variables: - `__DEV__` → `false` - `process.env.NODE_ENV` → `'production'` - `Platform.OS` / `React.Platform.OS` → `'android'` / `'ios'` and eliminates branches of conditionals with constant conditions. Dependency extraction happens only after that step, which means that production bundles don’t include any modules that are not used. Fixes #4185 Reviewed By: martinbigio Differential Revision: D2977169 fb-gh-sync-id: e6ce8dd29d1b49aec49b309201141f5b2709da1d shipit-source-id: e6ce8dd29d1b49aec49b309201141f5b2709da1d
76 lines
2.3 KiB
JavaScript
76 lines
2.3 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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'use strict';
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const log = require('../util/log').out('bundle');
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const outputBundle = require('./output/bundle');
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const Promise = require('promise');
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const ReactPackager = require('../../packager/react-packager');
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const saveAssets = require('./saveAssets');
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function buildBundle(args, config, output = outputBundle) {
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return new Promise((resolve, reject) => {
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// This is used by a bazillion of npm modules we don't control so we don't
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// have other choice than defining it as an env variable here.
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process.env.NODE_ENV = args.dev ? 'development' : 'production';
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const options = {
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projectRoots: config.getProjectRoots(),
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assetRoots: config.getAssetRoots(),
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blacklistRE: config.getBlacklistRE(),
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getTransformOptionsModulePath: config.getTransformOptionsModulePath,
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transformModulePath: args.transformer,
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verbose: args.verbose,
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};
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const requestOpts = {
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entryFile: args['entry-file'],
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sourceMapUrl: args['sourcemap-output'],
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dev: args.dev,
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minify: !args.dev,
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platform: args.platform,
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};
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const clientPromise = ReactPackager.createClientFor(options);
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// Build and save the bundle
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const bundlePromise = clientPromise
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.then(client => {
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log('Created ReactPackager');
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return output.build(client, requestOpts);
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})
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.then(bundle => {
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output.save(bundle, args, log);
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return bundle;
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});
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// When we're done bundling, close the client
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Promise.all([clientPromise, bundlePromise])
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.then(([client]) => {
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log('Closing client');
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client.close();
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});
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// Save the assets of the bundle
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const assets = bundlePromise
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.then(bundle => bundle.getAssets())
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.then(outputAssets => saveAssets(
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outputAssets,
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args.platform,
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args['assets-dest']
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));
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// When we're done saving bundle output and the assets, we're done.
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resolve(assets);
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});
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}
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module.exports = buildBundle;
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