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

77 lines
2.2 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @flow
*/
'use strict';
const meta = require('./meta');
const relativizeSourceMap = require('../../../packager/react-packager/src/lib/relativizeSourceMap');
const writeFile = require('./writeFile');
import type Bundle from '../../../packager/react-packager/src/Bundler/Bundle';
import type Server from '../../../packager/react-packager/src/Server';
import type {OutputOptions, RequestOptions} from '../types.flow';
function buildBundle(packagerClient: Server, requestOptions: RequestOptions) {
return packagerClient.buildBundle({
...requestOptions,
isolateModuleIDs: true,
});
}
function createCodeWithMap(bundle: Bundle, dev: boolean, sourceMapSourcesRoot?: string): * {
const sourceMap = relativizeSourceMap(bundle.getSourceMap({dev}), sourceMapSourcesRoot);
return {
code: bundle.getSource({dev}),
map: JSON.stringify(sourceMap),
};
}
function saveBundleAndMap(
bundle: Bundle,
options: OutputOptions,
log: (x: string) => {},
): Promise<> {
const {
bundleOutput,
bundleEncoding: encoding,
dev,
sourcemapOutput,
sourcemapSourcesRoot
} = options;
log('start');
const codeWithMap = createCodeWithMap(bundle, !!dev, sourcemapSourcesRoot);
log('finish');
log('Writing bundle output to:', bundleOutput);
const {code} = codeWithMap;
const writeBundle = writeFile(bundleOutput, code, encoding);
const writeMetadata = writeFile(
bundleOutput + '.meta',
meta(code, encoding),
'binary');
Promise.all([writeBundle, writeMetadata])
.then(() => log('Done writing bundle output'));
if (sourcemapOutput) {
log('Writing sourcemap output to:', sourcemapOutput);
const writeMap = writeFile(sourcemapOutput, codeWithMap.map, null);
writeMap.then(() => log('Done writing sourcemap output'));
return Promise.all([writeBundle, writeMetadata, writeMap]);
} else {
return writeBundle;
}
}
exports.build = buildBundle;
exports.save = saveBundleAndMap;
exports.formatName = 'bundle';