react-native/local-cli/server/middleware/getDevToolsMiddleware.js

62 lines
2.0 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
'use strict';
var execFile = require('child_process').execFile;
var fs = require('fs');
var opn = require('opn');
var path = require('path');
function getChromeAppName() {
switch (process.platform) {
case 'darwin':
return 'google chrome';
case 'win32':
return 'chrome';
default:
return 'google-chrome';
}
}
module.exports = function(options, isDebuggerConnected) {
return function(req, res, next) {
if (req.url === '/debugger-ui') {
var debuggerPath = path.join(__dirname, '..', 'util', 'debugger.html');
res.writeHead(200, {'Content-Type': 'text/html'});
fs.createReadStream(debuggerPath).pipe(res);
} else if (req.url === '/debuggerWorker.js') {
var workerPath = path.join(__dirname, '..', 'util', 'debuggerWorker.js');
res.writeHead(200, {'Content-Type': 'application/javascript'});
fs.createReadStream(workerPath).pipe(res);
} else if (req.url === '/launch-safari-devtools') {
// TODO: remove `console.log` and dev tools binary
console.log(
'We removed support for Safari dev-tools. ' +
'If you still need this, please let us know.'
);
} else if (req.url === '/launch-chrome-devtools') {
if (isDebuggerConnected()) {
// Dev tools are already open; no need to open another session
res.end('OK');
return;
}
var debuggerURL = 'http://localhost:' + options.port + '/debugger-ui';
console.log('Launching Dev Tools...');
opn(debuggerURL, {app: [getChromeAppName()]}, function(err) {
if (err) {
console.error('Google Chrome exited with error:', err);
}
});
res.end('OK');
} else {
next();
}
};
};