/** * 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 */ 'use strict'; const Metro = require('metro'); const {convert} = require('metro-config'); const denodeify = require('denodeify'); const fs = require('fs'); const path = require('path'); async function dependencies(argv, configPromise, args, packagerInstance) { const rootModuleAbsolutePath = args.entryFile; const config = await configPromise; if (!fs.existsSync(rootModuleAbsolutePath)) { return Promise.reject( new Error(`File ${rootModuleAbsolutePath} does not exist`), ); } config.cacheStores = []; config.transformModulePath = args.transformer ? path.resolve(args.transformer) : config.transformModulePath; const relativePath = path.relative( config.projectRoot, rootModuleAbsolutePath, ); const options = { platform: args.platform, entryFile: relativePath, dev: args.dev, minify: false, generateSourceMaps: !args.dev, }; const writeToFile = args.output; const outStream = writeToFile ? fs.createWriteStream(args.output) : process.stdout; const {serverOptions} = convert.convertNewToOld(config); return Promise.resolve( (packagerInstance ? packagerInstance.getOrderedDependencyPaths(options) : Metro.getOrderedDependencyPaths(serverOptions, options) ).then(deps => { deps.forEach(modulePath => { // Temporary hack to disable listing dependencies not under this directory. // Long term, we need either // (a) JS code to not depend on anything outside this directory, or // (b) Come up with a way to declare this dependency in Buck. const isInsideProjectRoots = config.watchFolders.filter(root => modulePath.startsWith(root)) .length > 0; if (isInsideProjectRoots) { outStream.write(modulePath + '\n'); } }); return writeToFile ? denodeify(outStream.end).bind(outStream)() : Promise.resolve(); }), ); } module.exports = { name: 'dependencies', description: 'lists dependencies', func: dependencies, options: [ { command: '--entry-file ', description: 'Absolute path to the root JS file', }, { command: '--output [path]', description: 'File name where to store the output, ex. /tmp/dependencies.txt', }, { command: '--platform [extension]', description: 'The platform extension used for selecting modules', }, { command: '--transformer [path]', description: 'Specify a custom transformer to be used', }, { command: '--max-workers [number]', description: 'Specifies the maximum number of workers the worker-pool ' + 'will spawn for transforming files. This defaults to the number of the ' + 'cores available on your machine.', parse: (workers: string) => Number(workers), }, { command: '--dev [boolean]', description: 'If false, skip all dev-only code path', parse: val => (val === 'false' ? false : true), default: true, }, { command: '--verbose', description: 'Enables logging', default: false, }, ], };