chore(typescript): migrate runnerCli to TS

lib/runner.ts

@@ -33,11 +33,11 @@ export class Runner extends EventEmitter {
     this.config_ = config;
     if (config.v8Debug) {
       // Call this private function instead of sending SIGUSR1 because Windows.
-      process['_debugProcess'](process.pid);
+      (<any>process)['_debugProcess'](process.pid);
     }
 
     if (config.nodeDebug) {
-      process['_debugProcess'](process.pid);
+      (<any>process)['_debugProcess'](process.pid);
       let flow = webdriver.promise.controlFlow();
 
       flow.execute(() => {

lib/runnerCli.ts

@@ -0,0 +1,55 @@
+/**
+ * This serves as the main function for starting a test run that has been
+ * requested by the launcher.
+ */
+
+import {ConfigParser} from './configParser';
+import {Logger} from './logger2';
+import {Runner} from './runner';
+
+let logger = new Logger('runnerCli');
+
+process.on('message', (m: any) => {
+  switch (m.command) {
+    case 'run':
+      if (!m.capabilities) {
+        throw new Error('Run message missing capabilities');
+      }
+      // Merge in config file options.
+      let configParser = new ConfigParser();
+      if (m.configFile) {
+        configParser.addFileConfig(m.configFile);
+      }
+      if (m.additionalConfig) {
+        configParser.addConfig(m.additionalConfig);
+      }
+      let config = configParser.getConfig();
+      Logger.set(config);
+
+      // Grab capabilities to run from launcher.
+      config.capabilities = m.capabilities;
+
+      // Get specs to be executed by this runner
+      config.specs = m.specs;
+
+      // Launch test run.
+      let runner = new Runner(config);
+
+      // Pipe events back to the launcher.
+      runner.on('testPass', () => { process.send({event: 'testPass'}); });
+      runner.on('testFail', () => { process.send({event: 'testFail'}); });
+      runner.on('testsDone', (results: any) => {
+        process.send({event: 'testsDone', results: results});
+      });
+
+      runner.run()
+          .then((exitCode: number) => { process.exit(exitCode); })
+          .catch((err: Error) => {
+            logger.info(err.message);
+            process.exit(1);
+          });
+      break;
+    default:
+      throw new Error('command ' + m.command + ' is invalid');
+  }
+});