Merge pull request #10 from SoCreate/feature/add-cli-commands

add support for -no-watch and -no-serve flags in cli

Author: jschwarty

example-app-angular-cli/package.json

@@ -6,8 +6,9 @@
   "scripts": {
     "playground:fresh": "npm i ../ && npm run playground",
     "playground": "angular-playground angular-playground.json",
-    "cli": "ts-node --project ../src/cli ../src/cli/cli.ts angular-playground.json",
-    "start": "ng serve --progress=false",
+    "cli": "ts-node --project ../src/cli ../src/cli/cli.ts",
+    "cli:build": "ts-node --project ../src/cli ../src/cli/cli.ts -no-watch -no-serve",
+    "start": "ng serve -no-progress",
     "lint": "tslint \"src/**/*.ts\"",
     "test": "ng test"
   },

src/cli/cli.ts

@@ -1,21 +1,35 @@
 #! /usr/bin/env node
 const path = require('path');
-import { build } from './build';
-import { startWatch } from './start-watch';
-import { runAngularCli } from './run-angular-cli';
+import {build} from './build';
+import {startWatch} from './start-watch';
+import {runAngularCli} from './run-angular-cli';
 
-let configFile = path.resolve(process.argv[2]);
+const supportedFlags = ['-no-watch', '-no-serve'];
+let args = process.argv.slice(2);
+let flags = [];
+args = args.reduce((accr, value) => {
+  supportedFlags.indexOf(value) > -1 ? flags.push(value) : accr.push(value);
+  return accr;
+}, []);
+
+const runWatch = flags.indexOf('-no-watch') === -1;
+const runAngularCliServe = flags.indexOf('-no-serve') === -1;
+
+const configFilePath = args[0] || 'angular-playground.json';
+
+let configFile = path.resolve(configFilePath);
 let config;
-if (configFile) {
+try {
   config = require(configFile.replace(/.json$/, ''));
-} else {
-  config = {
-    sourceRoot: './'
-  }
+} catch(e) {
+  process.stdout.write(`[angular-playground]: \x1b[31mFailed to load config file ${configFile}\x1b[0m\n`);
+  process.exit(1);
 }
 
 build(config.sourceRoot);
-startWatch(config, () => build(config.sourceRoot));
-if (config.angularCli) {
+if (runWatch) {
+  startWatch(config, () => build(config.sourceRoot));
+}
+if (runAngularCliServe && config.angularCli) {
   runAngularCli(config.angularCli);
 }