fix(version): outputs version of angular-cli

Author: jkuri

addon/ng2/commands/version.js

@@ -0,0 +1,38 @@
+'use strict';
+
+var Command = require('ember-cli/lib/models/command');
+var path    = require('path');
+
+module.exports = Command.extend({
+  name: 'version',
+  description: 'outputs angular-cli version',
+  aliases: ['v', '--version', '-v'],
+  works: 'everywhere',
+
+  availableOptions: [
+    { name: 'verbose', type: Boolean, default: false }
+  ],
+
+  run: function(options) {
+    var versions = process.versions;
+    var pkg = require(path.resolve(__dirname, '..', '..', '..', 'package.json'));
+
+    versions['os'] = process.platform + ' ' + process.arch;
+
+    var alwaysPrint = ['node', 'os'];
+
+    this.printVersion('angular-cli', pkg.version);
+
+    for (var module in versions) {
+      if (options.verbose || alwaysPrint.indexOf(module) > -1) {
+        this.printVersion(module, versions[module]);
+      }
+    }
+  },
+
+  printVersion: function(module, version) {
+    this.ui.writeLine(module + ': ' + version);
+  }
+});
+
+module.exports.overrideCore = true;

addon/ng2/index.js

@@ -10,7 +10,8 @@ module.exports = {
       'test'      : require('./commands/test'),
       'e2e'       : require('./commands/e2e'),
       'lint'      : require('./commands/lint'),
-      'format'    : require('./commands/format')
+      'format'    : require('./commands/format'),
+      'version'   : require('./commands/version')
     };
   }
 };