react-native/packager/packager.js

97 lines
2.7 KiB
JavaScript

/**
* Copyright 2004-present Facebook. All Rights Reserved.
*/
'use strict';
var ReactPackager = require('./react-packager');
var blacklist = require('./blacklist.js');
var connect = require('connect');
var http = require('http');
var launchEditor = require('./launchEditor.js');
var parseCommandLine = require('./parseCommandLine.js');
var path = require('path');
var options = parseCommandLine([{
command: 'port',
default: 8081,
}]);
if (!options.projectRoot) {
options.projectRoot = path.resolve(__dirname, '..');
}
console.log('\n' +
' ===============================================================\n' +
' | Running packager on port ' + options.port + '. \n' +
' | Keep this packager running while developing on any JS \n' +
' | projects. Feel free to close this tab and run your own \n' +
' | packager instance if you prefer. \n' +
' | \n' +
' | https://github.com/facebook/react-native \n' +
' | \n' +
' ===============================================================\n'
);
process.on('uncaughtException', function(e) {
console.error(e);
console.error(e.stack);
console.error('\n >>> ERROR: could not create packager - please shut down ' +
'any existing instances that are already running.\n\n');
});
runServer(options, function() {
console.log('\nReact packager ready.\n');
});
function loadRawBody(req, res, next) {
req.rawBody = '';
req.setEncoding('utf8');
req.on('data', function(chunk) {
req.rawBody += chunk;
});
req.on('end', function() {
next();
});
}
function openStackFrameInEditor(req, res, next) {
if (req.url === '/open-stack-frame') {
var frame = JSON.parse(req.rawBody);
launchEditor(frame.file, frame.lineNumber);
res.end('OK');
} else {
next();
}
}
function getAppMiddleware(options) {
return ReactPackager.catalystMiddleware({
dev: true,
projectRoot: options.projectRoot,
blacklistRE: blacklist(false),
cacheVersion: '2',
polyfillModuleNames: [
path.resolve(__dirname, 'polyfill/console.js'),
path.resolve(__dirname, 'polyfill/error-guard.js'),
]
});
}
function runServer(
options, /* {string projectRoot, bool web, bool dev} */
readyCallback
) {
var app = connect()
.use(loadRawBody)
.use(openStackFrameInEditor)
.use(getAppMiddleware(options))
.use(connect.static(options.projectRoot))
.use(connect.logger())
.use(connect.compress())
.use(connect.errorHandler());
return http.createServer(app).listen(options.port, readyCallback);
}