feat(commands): Adds autocompletion for all commands and subcommands

Author: jkuri

README.md

@@ -32,6 +32,7 @@ The generated project has dependencies that require **Node 4 or greater**.
 * [Running End-to-End Tests](#running-end-to-end-tests)
 * [Deploying the App via GitHub Pages](#deploying-the-app-via-github-pages)
 * [Support for offline applications](#support-for-offline-applications)
+* [Commands autocompletion](#commands-autocompletion)
 * [Known Issues](#known-issues)
 
 ## Installation
@@ -202,6 +203,28 @@ cp node_modules/angular2-service-worker/dist/worker.js src/
  Then, the commented snippet in `index.html` must be uncommented to register the worker script
  as a service worker.
 
+### Commands autocompletion
+
+To turn on auto completion use the following commands:
+
+For bash:
+```bash
+ng completion >> ~/.bashrc
+source ~/.bashrc
+```
+
+For zsh:
+```bash
+ng completion >> ~/.zshrc
+source ~/.zshrc
+```
+
+Windows users using gitbash:
+```bash
+ng completion >> ~/.bash_profile
+source ~/.bash_profile
+```
+
 ## Known issues
 
 This project is currently a prototype so there are many known issues. Just to mention a few:

addon/ng2/commands/completion.js

@@ -0,0 +1,18 @@
+/* jshint node: true */
+'use strict';
+
+var Command = require('ember-cli/lib/models/command');
+var path    = require('path');
+var fs      = require('fs');
+
+module.exports = Command.extend({
+  name: 'completion',
+  description: 'Adds autocomplete functionallity to `ng` commands and subcommands',
+  works: 'everywhere',
+  run: function() {
+    var scriptPath = path.resolve(__dirname, '..', 'utilities', 'completion.sh');
+    var scriptOutput = fs.readFileSync(scriptPath, 'utf8');
+
+    console.log(scriptOutput);
+  }
+});

addon/ng2/index.js

@@ -11,7 +11,8 @@ module.exports = {
       'e2e'       : require('./commands/e2e'),
       'lint'      : require('./commands/lint'),
       'format'    : require('./commands/format'),
-      'version'   : require('./commands/version')
+      'version'   : require('./commands/version'),
+      'completion': require('./commands/completion')
     };
   }
 };

addon/ng2/utilities/completion.sh

@@ -0,0 +1,63 @@
+###-begin-ng-completion### 
+#
+# ng command completion script
+#
+# Installation: ng completion >> ~/.bashrc (or ~/.zshrc)
+#
+
+ng_opts='new init build serve generate autocomplete e2e format lint test version'
+init_opts='--dry-run --verbose --blueprint --skip-npm --skip-bower --name'
+new_opts='--dry-run --verbose --blueprint --skip-npm --skip-bower --skip-git --directory'
+build_opts='--environment --output-path --watch --watcher'
+serve_opts='--port --host --proxy --insecure-proxy --watcher --live-reload --live-reload-host
+            --live-reload-port --environment --output-path --ssl --ssl-key --ssl-cert'
+generate_opts='component directive pipe route service'
+test_opts='--watch --browsers --colors --log-level --port --reporters'
+
+if type complete &>/dev/null; then
+  _ng_completion() {
+    local cword pword opts
+
+    COMPREPLY=()
+    cword=${COMP_WORDS[COMP_CWORD]}
+    pword=${COMP_WORDS[COMP_CWORD - 1]}
+
+    case ${pword} in
+      ng) opts=$ng_opts ;;
+      i|init) opts=$init_opts ;;
+      new) opts=$new_opts ;;
+      b|build) opts=$build_opts ;;
+      s|serve|server) opts=$serve_opts ;;
+      g|generate) opts=$generate_opts ;;
+      test) opts=$test_opts ;;
+    esac
+
+    COMPREPLY=( $(compgen -W '${opts}' -- $cword) )
+
+    return 0
+  }
+  complete -o default -F _ng_completion ng
+elif type compctl &>/dev/null; then
+  _ng_completion () {
+    local words cword opts
+    read -Ac words
+    read -cn cword
+    let cword-=1
+
+    case $words[cword] in
+      ng) opts=$ng_opts ;;
+      i|init) opts=$init_opts ;;
+      new) opts=$new_opts ;;
+      b|build) opts=$build_opts ;;
+      s|serve|server) opts=$serve_opts ;;
+      g|generate) opts=$generate_opts ;;
+      test) opts=$test_opts ;;
+    esac
+    
+    setopt shwordsplit
+    reply=($opts)
+    unset shwordsplit
+  }
+  compctl -K _ng_completion ng
+fi
+###-end-ng-completion###