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preview.js
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preview.js
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// preview .we or .vue files
const fs = require('fs'),
fse = require('fs-extra'),
path = require('path'),
opener = require('opener'),
npmlog = require('npmlog'),
httpServer = require('http-server'),
wsServer = require('ws').Server,
watch = require('node-watch'),
os = require('os'),
_ = require("underscore"),
webpack = require('webpack'),
webpackLoader = require('weex-loader'),
qrcode = require('qrcode-terminal-alpha'),
nwUtils = require('../build/nw-utils'),
fsUtils = require('../build/fs-utils'),
displayUtils = require('../build/display-utils'),
debuggerServer = require('../build/debugger-server'),
weFileCreate = require('../build/create'),
generator = require('../build/generator'),
chalk = require('chalk');
const VERSION = require('../package.json').version
const defaultParams = {
entry: '',
output: '',
fileExt: ['vue','we'],
temDir: 'weex_tmp',
h5RenderDir: 'h5_render',
port: '8081',
host: '127.0.0.1',
output: 'no JSBundle output',
websocketPort: '8082',
qr: false,
smallqr: false,
transformPath:'',
notopen: false,
};
const WEEX_FILE_EXT = "we"
const WEEX_TRANSFORM_TMP = "weex_tmp"
const H5_Render_DIR = "h5_render"
const NO_PORT_SPECIFIED = -1
const DEFAULT_HTTP_PORT = "8081"
const DEFAULT_WEBSOCKET_PORT = "8082"
const NO_JSBUNDLE_OUTPUT = "no JSBundle output"
//will update when argvProcess function call
var HTTP_PORT = NO_PORT_SPECIFIED
var WEBSOCKET_PORT = NO_PORT_SPECIFIED
webpackLoader.setLogLevel("WARN")
let Previewer = {
init: function(args) {
if(args['_'].length == 0) {
return;
}
let entry = args['_'][0];
if(!this.__isWorkFile(entry)) {
return console.log('Not a ".vue" or ".we" file');
}
if(args.port <=0 || args.port >= 65336) {
this.params.port = 8081;
}
this.params = Object.assign({},defaultParams,args);
this.params.entry = entry;
this.file = path.basename(entry);
this.module = this.file.replace(/\..+/, '');
this.fileType = /\.vue$/.test(this.file) ? 'vue':'we';
this.fileDir = process.cwd();
this.serverMark = false;
if (!this.params.entry && this.params.transformPath){
this.serverMark = true;
this.startWebServer();
return;
}
this.fileFlow()
},
__isWorkFile: function(filename) {
if(!/\.(we|vue)$/.test(filename)) {
return false;
}
return true;
},
fileFlow() {
let entry = this.params.entry;
let output = this.params.ouput;
if (this.params.output == 'no JSBundle output'){
this.params.output = null;
this.initTemDir();
this.serverMark = true;
}
try{
if (fs.lstatSync(entry).isFile()){
if (fs.lstatSync(entry).isDirectory()){
let module = this.module;
this.params.output = params.output = path.join(output , `${module}.js`)
}
}
}catch(e){
//fs.lstatSync my raise when outputPath is file but not exist yet.
}
if (this.params.watch){
npmlog.info(`watching ${entry}`);
let self = this;
watch(entry, function (fileName){
if (/\.(we|vue)$/gi.test(fileName)){
npmlog.info(`${fileName} updated`)
try{
if (fs.lstatSync(outputPath).isDirectory()){
let fn = path.basename(fileName).replace(/\..+/, '')
output = path.join(outputPath , `${fn}.js`)
}
}catch(e){}
self.transforme(fileName,output);
}
})
}else{
this.transforme(entry,this.params.output);
}
},
// build temp directory for web preview
initTemDir() {
fse.removeSync(this.params.temDir);
fs.mkdirSync(this.params.temDir)
fse.copySync(`${__dirname}/../vue-template/template` , `${this.params.temDir}/${this.params.h5RenderDir}`);
fse.mkdirsSync(`${this.params.temDir}/${this.params.h5RenderDir}`);
},
buildBundle() {
},
transforme(inputPath,outputPath){
let transformP;
let self = this;
if (fs.lstatSync(inputPath).isFile()){
if(this.fileType == 'vue') {
transformP = fsUtils.replace(path.join(`${self.params.temDir}/${self.params.h5RenderDir}/`,'app.js'),[
{
rule: "{{$module}}",
scripts: path.join(process.cwd(),inputPath) ,
}
]).then(() => {
let trans = self.transformTarget(inputPath , outputPath);
return trans;
})
} else {
transformP = self.transformTarget(inputPath , outputPath);
}
}else if (fs.lstatSync(inputPath).isDirectory){
try{
fs.lstatSync(outputPath).isDirectory();
}catch(e){
npmlog.info(yargs.help())
npmlog.info("when input path is dir , output path must be dir too")
process.exit(1)
}
let filesInTarget = fs.readdirSync(inputPath)
filesInTarget = _.filter(filesInTarget , (fileName)=>(fileName.length > 2 ) )
filesInTarget = _.filter(filesInTarget , (fileName)=>( fileName.substring(fileName.length - 2 , fileName.length) == WEEX_FILE_EXT ) )
let filesInTargetPromiseList = _.map(filesInTarget , function(fileName){
let ip = path.join( inputPath , fileName)
fileName = fileName.replace(/\.(we|vue)/, '')
let op = path.join( outputPath , `${fileName}.js` )
return self.transformTarget(ip , op)
})
transformP = Promise.all(filesInTargetPromiseList)
}
transformP.then( function(jsBundlePathForRender){
console.log(process.cwd());
if (self.serverMark == true) { // typeof jsBundlePathForRender == "string"
//no js bundle output specified, start server for playgroundApp(now) or H5 renderer.
self.startWebServer(jsBundlePathForRender);
self.startWebSocket();
}else{
npmlog.info('weex JS bundle saved at ' + path.resolve(outputPath));
}
}).catch(function(e){
npmlog.error(e)
});
},
transformTarget(inputPath , outputPath){
let promiseData = {promise: null,resolver: null,rejecter: null}
promiseData.promise = new Promise(function (resolve, reject) {
promiseData.resolver = resolve
promiseData.rejecter = reject
})
let webpackConfig = this.setWebpackConfig(inputPath,outputPath);
let filename = path.basename(inputPath).replace(/\..+/, '');
//return promiseData.promise;
webpack(webpackConfig,function(err,stats){
setTimeout(()=> {
displayUtils.displayWebpackStats(stats);
}, 300);
if (err){
promiseData.rejecter(err)
if (err.name == "ModuleNotFoundError"){
let moduleName = "THE_MISSING_MODULE_NAME"
if ((err.dependencies.length > 0 ) && err.dependencies[0].request) {
moduleName = err.dependencies[0].request
if (moduleName.indexOf("/") > 0){
moduleName = moduleName.split("/")[0]
}
}
setTimeout(()=> {
npmlog.info(`Please try to enter directory where your we file saved, and run command 'npm install ${moduleName}'`)
},100);
}else{
if (err.error){
setTimeout(() => {
npmlog.error("critical syntax Error found , please check root tags or css syntax in your we file");
},100)
}
}
}else{
if (outputPath){
promiseData.resolver(false)
}else{
promiseData.resolver(`${filename}.js`)
}
}
})
return promiseData.promise;
},
runWebpack() {
},
setWebpackConfig(inputPath,outputPath) {
let module = this.module;
let bundleWritePath = null;
if (outputPath){
bundleWritePath = outputPath
}else{
bundleWritePath = path.join(this.fileDir,`${this.params.temDir}/${this.params.h5RenderDir}/${module}.js`);
}
inputPath = path.resolve(inputPath);
let entryValue = '';
if(this.fileType == 'vue') {
entryValue = `${this.params.temDir}/${this.params.h5RenderDir}/app.js?entry=true`;
}else {
entryValue = `${inputPath}?entry=true`;
}
let webpackConfig = {
entry: entryValue,
output: {
path: path.dirname(bundleWritePath),
filename: path.basename(bundleWritePath)
},
module: {
loaders: [
{
test: /\.we(\?[^?]+)?$/,
loaders: ['weex']
},
{
test: /\.js(\?[^?]+)?$/,
loader: 'babel',
exclude: /node_modules/
},
{
test: /\.vue(\?[^?]+)?$/,
loader: 'vue'
}
]
},
babel:{
presets: [require.resolve("babel-preset-es2015")],
},
resolve:{
root:[ path.dirname(inputPath), path.join (path.dirname(inputPath) ,"node_modules/") ,process.cwd(), path.join(process.cwd(), "node_modules/") ]
},
resolveLoader: {
root: [ path.join( path.dirname(__dirname), "node_modules/")]
},
debug:true,
bail:true
};
return webpackConfig;
},
startWebServer(fileName) {
let options = {
root: ".",
cache: "-1",
showDir: true,
autoIndex: true
}
let self = this;
if (this.params.transformPath){
options.root = this.params.transformPath;
options.before = [ fsUtils.getTransformerWraper(options.root, self.transformTarget ) ];
}else{
options.before = [ fsUtils.getTransformerWraper(process.cwd(), self.transformTarget ) ]
}
self.bindProcessEvent();
let server = httpServer.createServer();
let port = this.params.port;
//npmlog.info(`http port: ${port}`)
server.listen(port, "0.0.0.0", function () {
npmlog.info((new Date()) + `http is listening on port ${port}`)
if (self.transformServerPath){
let IP = nwUtils.getPublicIP()
if (self.params.host != DEFAULT_HOST){
IP = self.params.host;
}
npmlog.info(`target file in local path ${self.parmas.transformPath} will be transformer to JS bundle\nplease access http://${IP}:${port}/`);
return;
}
if (self.params.qr || self.params.smallqr){
self.showQR();
return;
}
let previewUrl = `http://${self.params.host}:${port}/${WEEX_TRANSFORM_TMP}/${H5_Render_DIR}/?hot-reload_controller&page=${fileName}&loader=xhr`;
let vueRegArr = [
{
rule: /{{\$script}}/,
scripts:`
<script src="./assets/phantom-limb.js"></script>
<script src="./assets/vue.runtime.js"></script>
<script src="./assets/weex-vue-render/index.js"></script>
`
},
{
rule: /{{\$script2}}/,
scripts:'<script src="' + self.module + '.js"></script>',
}
];
let weRegArr = [
{
rule: /{{\$script}}/,
scripts:`
<script src="./assets/weex-html5/weex.js"></script>
<script src="./assets/weex-init.js"></script>
`
},
{
rule: /{{\$script2}}/,
scripts:'',
}
];
let regarr = vueRegArr;
if(/\.we$/.test(self.params.entry)) {
regarr = weRegArr;
}
fsUtils.replace(path.join(`${self.params.temDir}/${self.params.h5RenderDir}/`,'weex.html'),regarr).then(() => {
self.open(previewUrl);
}).catch((err) => {
console.log(err);
npmlog.error("replace file failed!");
})
});
},
showQR(){
let IP = this.getIP();
let wsport = this.params.websocketPort;
let jsBundleURL = `http://${IP}:${this.params.port}/${this.params.temDir}/${this.params.h5RenderDir}/${this.module}.js?wsport=${this.params.websocketPort}`;
// npmlog output will broken QR in some case ,some we using console.log
console.log(`The following QR encoding url is\n${jsBundleURL}\n`);
qrcode.generate(jsBundleURL,{small: this.params.smallqr});
console.log("\nPlease download Weex Playground app from https://github.com/alibaba/weex and scan this QR code to run your app, make sure your phone is connected to the same Wi-Fi network as your computer runing WeexToolkit.\n")
},
bindProcessEvent() {
let self = this;
process.on('uncaughtException', function(err) {
if(err.errno === 'EADDRINUSE') {
npmlog.info('The server has been setted up.');
}else {
console.log(err);
}
process.exit(1);
});
process.on('SIGINT', function () {
console.log(chalk.green("weex server stoped"));
fsUtils.deleteFolderRecursive(self.params.temDir)
process.exit()
})
process.on('SIGTERM', function () {
console.log(chalk.green("weex server stoped"));
fsUtils.deleteFolderRecursive(self.params.temDir);
process.exit()
})
},
getIP () {
let IP = nwUtils.getPublicIP();
if (this.params.host != ''){
IP = this.params.host;
}
return IP;
},
startWebSocket(fileName){
let port = this.params.websocketPort;
let wss = wsServer({port: port})
let self = this
npmlog.info((new Date()) + `WebSocket is listening on port ${port}`)
wss.on('connection', function connection(ws) {
ws.on('message', function incoming(message) {
npmlog.info('received: %s', message);
});
ws.send("ws server ok")
self.wsConnection = ws
self.watchForWSRefresh(fileName)
})
},
watchForWSRefresh(fileName){
let self = this;
watch(path.dirname(this.params.entry), function(fileName){
if (!!fileName.match(`${self.params.temDir}`)) {
return
}
console.log(fileName);
if (/\.(js|we|vue)$/gi.test(fileName)){
let transformP = self.transformTarget(self.params.entry, self.params.output)
transformP.then( function(fileName){
console.log('refresh!');
self.wsConnection.send("refresh");
})
}
});
},
open(url) {
if (!this.params.notopen){
opener(url);
}else{
npmlog.info(`weex preview url: ${url}`)
}
},
};
module.exports = function(args) {
Previewer.init(args);
};