react-native/local-cli/bundle/buildBundle.js

81 lines
2.2 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @flow
*/
'use strict';
const log = require('../util/log').out('bundle');
/* $FlowFixMe(site=react_native_oss) */
const Server = require('metro/src/Server');
/* $FlowFixMe(site=react_native_oss) */
const outputBundle = require('metro/src/shared/output/bundle');
const path = require('path');
const saveAssets = require('./saveAssets');
import type {RequestOptions, OutputOptions} from './types.flow';
import type {ConfigT} from 'metro-config/src/configTypes.flow';
async function buildBundle(
args: OutputOptions & {
assetsDest: mixed,
entryFile: string,
maxWorkers: number,
resetCache: boolean,
transformer: string,
minify: boolean,
},
configPromise: Promise<ConfigT>,
output = outputBundle,
) {
// This is used by a bazillion of npm modules we don't control so we don't
// have other choice than defining it as an env variable here.
process.env.NODE_ENV = args.dev ? 'development' : 'production';
const config = await configPromise;
let sourceMapUrl = args.sourcemapOutput;
if (sourceMapUrl && !args.sourcemapUseAbsolutePath) {
sourceMapUrl = path.basename(sourceMapUrl);
}
config.transformModulePath = args.transformer
? path.resolve(args.transformer)
: config.transformModulePath;
const requestOpts: RequestOptions = {
entryFile: args.entryFile,
sourceMapUrl,
dev: args.dev,
minify: args.minify !== undefined ? args.minify : !args.dev,
platform: args.platform,
};
const server = new Server({...config, resetCache: args.resetCache});
try {
const bundle = await output.build(server, requestOpts);
await output.save(bundle, args, log);
// Save the assets of the bundle
const outputAssets = await server.getAssets({
...Server.DEFAULT_BUNDLE_OPTIONS,
...requestOpts,
bundleType: 'todo',
});
// When we're done saving bundle output and the assets, we're done.
return await saveAssets(outputAssets, args.platform, args.assetsDest);
} finally {
server.end();
}
}
module.exports = buildBundle;