github地址: https://github.com/succeed2011/react-native-document-note
React Native版本0.51.0
一般情況下我們是不需要手動對RN的js代碼進行打包生成index.bundle.js文件的,或者我們可以在調試模式下使用瀏覽器手動複製代碼保存,但是有些情況我們是需要使用程序幫我們自動完成打包操作的。
爲此我寫了一個腳本文件。使用步驟爲:
- 新建package.js文件,將文件放在
./node_modules/react-native
目錄內; - 在項目根目錄上執行
node ./node_modules/react-native/package.js
; - 打包後的js文件保存在項目根目錄,後綴爲
.bundle.js
.
注:
* 入口文件放在項目根目錄中
* package.js中reqUrlArr變量中寫的是入口js文件,可以寫多個,比如入口文件爲index1.js、index2.js,
那麼 reqUrlArr = ['index1.bundle', 'index2.bundle']
'use strict';
require('./local-cli/cli.js');
const log = require('./local-cli/util/log').out('bundle');
const Server = require('metro-bundler/src/Server');
const Terminal = require('metro-bundler/src/lib/Terminal');
const TerminalReporter = require('metro-bundler/src/lib/TerminalReporter');
const TransformCaching = require('metro-bundler/src/lib/TransformCaching');
const outputBundle = require('metro-bundler/src/shared/output/bundle');
//const saveAssets = require('./local-cli/saveAssets');
const defaultAssetExts = require('metro-bundler/src/defaults').assetExts;
const defaultSourceExts = require('metro-bundler/src/defaults').sourceExts;
const defaultPlatforms = require('metro-bundler/src/defaults').platforms;
const defaultProvidesModuleNodeModules = require('metro-bundler/src/defaults').providesModuleNodeModules;
const {ASSET_REGISTRY_PATH} = require('./local-cli/core/Constants');
const path = require('path');
const fs = require('fs');
const terminal = new Terminal(process.stdout);
//需要打包的文件,項目根目錄的文件
const reqUrlArr = ['index.bundle'];
//項目跟路徑
const projectRoots = path.resolve(__dirname.slice(0,__dirname.indexOf('node_modules')));
const createServerOpts = {
assetExts: defaultAssetExts,
assetRegistryPath: ASSET_REGISTRY_PATH,
blacklistRE: /(node_modules[\/\\]react[\/\\]dist[\/\\].*|website\/node_modules\/.*|heapCapture\/bundle\.js|.*\/__tests__\/.*)$/,
cacheVersion: '3',
enableBabelRCLookup: false,
extraNodeModules: {},
getPolyfills: require('./rn-get-polyfills'),
//getTransformOptions: [Function: getTransformOptions],
globalTransformCache: null,
hasteImpl: undefined,
maxWorkers: 3,
moduleFormat: 'haste',
platforms: [ 'ios', 'android', 'windows', 'web' ],
polyfillModuleNames: [],
//postProcessModules: [Function: postProcessModules],
//postMinifyProcess: [Function: postMinifyProcess],
//postProcessBundleSourcemap: [Function: postProcessBundleSourcemap],
projectRoots: [projectRoots],
providesModuleNodeModules: [ 'react-native', 'react-native-windows' ],
reporter: new TerminalReporter(terminal),
resetCache: false,
runBeforeMainModule: [path.join(projectRoots, 'node_modules/react-native/Libraries/Core/InitializeCore.js')],
silent: false,
sourceExts: ['js', 'json'],
transformCache: TransformCaching.useTempDir(),
transformModulePath: path.join(projectRoots, 'node_modules/metro-bundler/src/transformer.js'),
useDeltaBundler: false,
watch: false,
workerPath: null
}
const server = new Server(createServerOpts);
var count = 0;
console.log('開始處理... ...');
reqUrlArr.forEach(function(reqUrl) {
//platform決定是哪個平臺,因爲有些控件在不同平臺加載的代碼不一樣
server.buildBundleFromUrl(reqUrl + '?platform=ios').then(function(p) {
const code = p.getSource({
inlineSourceMap: true,
minify: false,
});
const bundlePath = path.resolve(path.dirname(__filename), '../../' + reqUrl + '.bundle.js');
fs.writeFileSync(bundlePath, code);
console.log('寫入文件:' + bundlePath + '成功!')
if(++count === reqUrlArr.length) {
console.log('打包完畢!!!');
process.exit(0);
}
});
})