/
server.js
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server.js
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var io = require('socket.io');
var di = require('di');
var cfg = require('./config');
var logger = require('./logger');
var browser = require('./browser');
var constant = require('./constants');
var watcher = require('./watcher');
var plugin = require('./plugin');
var ws = require('./web-server');
var preprocessor = require('./preprocessor');
var Launcher = require('./launcher').Launcher;
var FileList = require('./file-list').List;
var reporter = require('./reporter');
var helper = require('./helper');
var EventEmitter = require('./events').EventEmitter;
var log = logger.create();
// TODO(vojta): get this whole mess under test
var start = function(injector, config, launcher, globalEmitter, preprocess, fileList, webServer,
capturedBrowsers, done) {
config.frameworks.forEach(function(framework) {
injector.get('framework:' + framework);
});
var filesPromise = fileList.refresh();
if (config.autoWatch) {
filesPromise.then(function() {
injector.invoke(watcher.watch);
});
}
// TODO(vojta): instantiate by DI
var socketServer = io.listen(webServer, {
logger: logger.create('socket.io', constant.LOG_ERROR),
resource: config.urlRoot + 'socket.io',
transports: config.transports
});
webServer.updateFilesPromise(filesPromise);
webServer.on('error', function(e) {
if (e.code === 'EADDRINUSE') {
log.warn('Port %d in use', config.port);
config.port++;
webServer.listen(config.port);
} else {
throw e;
}
});
webServer.listen(config.port, function() {
log.info('Karma v%s server started at http://%s:%s%s', constant.VERSION, config.hostname,
config.port, config.urlRoot);
if (config.browsers && config.browsers.length) {
injector.invoke(launcher.launch, launcher);
}
});
var executionScheduled = false;
var pendingCount = 0;
var runningBrowsers;
globalEmitter.on('browsers_change', function() {
// TODO(vojta): send only to interested browsers
socketServer.sockets.emit('info', capturedBrowsers.serialize());
});
globalEmitter.on('browser_register', function(browser) {
if (browser.launchId) {
launcher.markCaptured(browser.launchId);
}
// TODO(vojta): This is lame, browser can get captured and then crash (before other browsers get
// captured).
if ((config.autoWatch || config.singleRun) && launcher.areAllCaptured()) {
tryExecution();
}
});
var tryExecution = function() {
var nonReady = [];
if (!capturedBrowsers.length) {
log.warn('No captured browser, open http://%s:%s%s', config.hostname, config.port,
config.urlRoot);
return false;
} else if (capturedBrowsers.areAllReady(nonReady)) {
log.debug('All browsers are ready, executing');
executionScheduled = false;
capturedBrowsers.setAllIsReadyTo(false);
capturedBrowsers.clearResults();
pendingCount = capturedBrowsers.length;
runningBrowsers = capturedBrowsers.clone();
globalEmitter.emit('run_start', runningBrowsers);
socketServer.sockets.emit('execute', config.client);
return true;
} else {
log.info('Delaying execution, these browsers are not ready: ' + nonReady.join(', '));
executionScheduled = true;
return false;
}
};
globalEmitter.on('browser_complete', function() {
pendingCount--;
if (!pendingCount) {
globalEmitter.emit('run_complete', runningBrowsers, runningBrowsers.getResults());
}
});
globalEmitter.on('run_complete', function(browsers, results) {
if (config.singleRun) {
disconnectBrowsers(results.exitCode);
} else if (executionScheduled) {
tryExecution();
}
});
socketServer.sockets.on('connection', function (socket) {
log.debug('New browser has connected on socket ' + socket.id);
browser.createBrowser(socket, capturedBrowsers, globalEmitter);
});
globalEmitter.on('file_list_modified', function(filesPromise) {
log.debug('List of files has changed, trying to execute');
webServer.updateFilesPromise(filesPromise);
tryExecution();
});
var disconnectBrowsers = function(code) {
// Slightly hacky way of removing disconnect listeners
// to suppress "browser disconnect" warnings
// TODO(vojta): change the client to not send the event (if disconnected by purpose)
var sockets = socketServer.sockets.sockets;
Object.getOwnPropertyNames(sockets).forEach(function(key) {
sockets[key].removeAllListeners('disconnect');
});
globalEmitter.emitAsync('exit').then(function() {
done(code || 0);
});
};
if (config.singleRun) {
globalEmitter.on('browser_process_failure', function(browser) {
log.debug('%s failed to capture, aborting the run.', browser);
disconnectBrowsers(1);
});
}
try {
process.on('SIGINT', disconnectBrowsers);
process.on('SIGTERM', disconnectBrowsers);
} catch (e) {
// Windows doesn't support signals yet, so they simply don't get this handling.
// https://github.com/joyent/node/issues/1553
}
// Handle all unhandled exceptions, so we don't just exit but
// disconnect the browsers before exiting.
process.on('uncaughtException', function(error) {
log.error(error);
disconnectBrowsers(1);
});
};
start.$inject = ['injector', 'config', 'launcher', 'emitter', 'preprocess', 'fileList',
'webServer', 'capturedBrowsers', 'done'];
exports.start = function(cliOptions, done) {
// apply the default logger config as soon as we can
logger.setup(constant.LOG_INFO, true, [constant.CONSOLE_APPENDER]);
var config = cfg.parseConfig(cliOptions.configFile, cliOptions);
var modules = [{
helper: ['value', helper],
logger: ['value', logger],
done: ['value', done || process.exit],
emitter: ['type', EventEmitter],
launcher: ['type', Launcher],
config: ['value', config],
preprocess: ['factory', preprocessor.createPreprocessor],
fileList: ['type', FileList],
webServer: ['factory', ws.create],
// TODO(vojta): remove
customFileHandlers: ['value', []],
// TODO(vojta): remove, once karma-dart does not rely on it
customScriptTypes: ['value', []],
reporter: ['factory', reporter.createReporters],
capturedBrowsers: ['type', browser.Collection],
args: ['value', {}]
}];
// load the plugins
modules = modules.concat(plugin.resolve(config.plugins));
var injector = new di.Injector(modules);
injector.invoke(start);
};