mirror of https://github.com/status-im/metro.git
122 lines
3.2 KiB
JavaScript
122 lines
3.2 KiB
JavaScript
/**
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* Copyright 2004-present Facebook. All Rights Reserved.
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*/
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'use strict';
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var fs = require('fs');
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var path = require('path');
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if (!fs.existsSync(path.resolve(__dirname, '..', 'node_modules'))) {
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console.log(
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'\n' +
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'Could not find dependencies.\n' +
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'Ensure dependencies are installed - ' +
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'run \'npm install\' from project root.\n'
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);
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process.exit();
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}
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var ReactPackager = require('./react-packager');
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var blacklist = require('./blacklist.js');
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var connect = require('connect');
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var http = require('http');
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var launchEditor = require('./launchEditor.js');
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var parseCommandLine = require('./parseCommandLine.js');
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var options = parseCommandLine([{
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command: 'port',
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default: 8081,
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}, {
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command: 'root',
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description: 'add another root(s) to be used by the packager in this project',
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}]);
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if (!options.projectRoots) {
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options.projectRoots = [path.resolve(__dirname, '..')];
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}
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if (options.root) {
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if (typeof options.root === 'string') {
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options.projectRoots.push(path.resolve(options.root));
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} else {
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options.root.forEach(function(root) {
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options.projectRoots.push(path.resolve(root));
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});
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}
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}
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console.log('\n' +
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' ===============================================================\n' +
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' | Running packager on port ' + options.port + '. \n' +
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' | Keep this packager running while developing on any JS \n' +
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' | projects. Feel free to close this tab and run your own \n' +
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' | packager instance if you prefer. \n' +
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' | \n' +
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' | https://github.com/facebook/react-native \n' +
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' | \n' +
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' ===============================================================\n'
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);
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process.on('uncaughtException', function(e) {
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console.error(e);
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console.error(e.stack);
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console.error('\n >>> ERROR: could not create packager - please shut down ' +
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'any existing instances that are already running.\n\n');
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});
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runServer(options, function() {
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console.log('\nReact packager ready.\n');
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});
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function loadRawBody(req, res, next) {
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req.rawBody = '';
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req.setEncoding('utf8');
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req.on('data', function(chunk) {
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req.rawBody += chunk;
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});
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req.on('end', function() {
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next();
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});
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}
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function openStackFrameInEditor(req, res, next) {
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if (req.url === '/open-stack-frame') {
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var frame = JSON.parse(req.rawBody);
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launchEditor(frame.file, frame.lineNumber);
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res.end('OK');
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} else {
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next();
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}
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}
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function getAppMiddleware(options) {
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return ReactPackager.middleware({
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projectRoots: options.projectRoots,
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blacklistRE: blacklist(false),
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cacheVersion: '2',
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transformModulePath: require.resolve('./transformer.js'),
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});
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}
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function runServer(
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options, /* {[]string projectRoot, bool web} */
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readyCallback
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) {
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var app = connect()
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.use(loadRawBody)
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.use(openStackFrameInEditor)
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.use(getAppMiddleware(options));
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options.projectRoots.forEach(function(root) {
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app.use(connect.static(root));
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});
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app.use(connect.logger())
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.use(connect.compress())
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.use(connect.errorHandler());
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return http.createServer(app).listen(options.port, readyCallback);
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}
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