perf(ng new): command to link to angular-cli (#778)

add `--link-cli` command to link newly generated project to the global `angular-cli`
package. reduces `ng new ...` command time with about 50%

Author: Ionut Achim

addon/ng2/commands/init.js

@@ -6,6 +6,7 @@ var SilentError = require('silent-error');
 var validProjectName = require('ember-cli/lib/utilities/valid-project-name');
 var normalizeBlueprint = require('ember-cli/lib/utilities/normalize-blueprint-option');
 var GitInit = require('../tasks/git-init');
+var LinkCli = require('../tasks/link-cli');
 
 module.exports = Command.extend({
   name: 'init',
@@ -17,6 +18,7 @@ module.exports = Command.extend({
     { name: 'dry-run', type: Boolean, default: false, aliases: ['d'] },
     { name: 'verbose', type: Boolean, default: false, aliases: ['v'] },
     { name: 'blueprint', type: String, aliases: ['b'] },
+    { name: 'link-cli', type: Boolean, default: false, aliases: ['lc'] },
     { name: 'skip-npm', type: Boolean, default: false, aliases: ['sn'] },
     { name: 'skip-bower', type: Boolean, default: true, aliases: ['sb'] },
     { name: 'name', type: String, default: '', aliases: ['n'] },
@@ -57,6 +59,14 @@ module.exports = Command.extend({
       });
     }
 
+    if (commandOptions.linkCli) {
+      var linkCli = new LinkCli({
+        ui: this.ui,
+        analytics: this.analytics,
+        project: this.project
+      });
+    }
+
     if (!commandOptions.skipNpm) {
       var npmInstall = new this.tasks.NpmInstall({
         ui: this.ui,
@@ -109,6 +119,14 @@ module.exports = Command.extend({
           return gitInit.run(commandOptions, rawArgs);
         }
       }.bind(this))
+      .then(function () {
+        if (commandOptions.linkCli) {
+          return linkCli.run({
+            verbose: commandOptions.verbose,
+            optional: false
+          });
+        }
+      })
       .then(function () {
         if (!commandOptions.skipNpm) {
           return npmInstall.run({

addon/ng2/commands/new.ts

@@ -16,6 +16,7 @@ const NewCommand = Command.extend({
     { name: 'dry-run', type: Boolean, default: false, aliases: ['d'] },
     { name: 'verbose', type: Boolean, default: false, aliases: ['v'] },
     { name: 'blueprint', type: String, default: 'ng2', aliases: ['b'] },
+    { name: 'link-cli', type: Boolean, default: false, aliases: ['lc'] },
     { name: 'skip-npm', type: Boolean, default: false, aliases: ['sn'] },
     { name: 'skip-bower', type: Boolean, default: true, aliases: ['sb'] },
     { name: 'skip-git', type: Boolean, default: false, aliases: ['sg'] },

addon/ng2/tasks/link-cli.ts

@@ -0,0 +1,22 @@
+import * as Promise from 'ember-cli/lib/ext/promise';
+import * as Task from 'ember-cli/lib/models/task';
+import * as chalk from 'chalk';
+import {exec} from 'child_process';
+
+module.exports = Task.extend({
+  run: function() {
+    var ui = this.ui;
+
+    return new Promise(function(resolve, reject) {
+      exec('npm link angular-cli', (err) => {
+        if (err) {
+          ui.writeLine(chalk.red('Couldn\'t do \'npm link angular-cli\'.'));
+          reject();
+        } else {
+          ui.writeLine(chalk.green('Successfully linked to angular-cli.'));
+          resolve();
+        }
+      });
+    });
+  }
+});