[fix] Display YunoHost packages versions (fix #11)

bin/yunohost-api

@@ -155,10 +155,14 @@ if __name__ == '__main__':
     _init_moulinette()
 
     from moulinette import (api, MoulinetteError)
+    from yunohost import get_versions
     try:
         # Run the server
         api(_retrieve_namespaces(), port=6787,
-            routes={('GET', '/installed'): is_installed},
+            routes={
+                ('GET', '/installed'): is_installed,
+                ('GET', '/version'): get_versions,
+            },
             use_cache=USE_CACHE, use_websocket=USE_WEBSOCKET)
     except MoulinetteError as e:
         _die(e.strerror, m18n.g('error'))

data/actionsmap/yunohost.yml

@@ -54,9 +54,11 @@ _global:
     arguments:
         -v:
             full: --version
-            help: Display moulinette version
-            action: version
-            version: moulinette %version%
+            help: Display YunoHost packages versions
+            action: callback
+            callback:
+                method: yunohost.get_versions
+                return: true
 
 #############################
 #           User            #

lib/yunohost/__init__.py

@@ -0,0 +1,38 @@
+# -*- coding: utf-8 -*-
+
+""" YunoHost scripts for the moulinette """
+
+""" License
+
+    Copyright (C) 2015 YUNOHOST.ORG
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program; if not, see http://www.gnu.org/licenses
+
+"""
+
+## Packages versions
+
+def get_version(package):
+    from moulinette.utils import process
+    return process.check_output(
+        "dpkg-query -W -f='${{Version}}' {0}".format(package)
+    ).strip()
+
+def get_versions(*args, **kwargs):
+    from collections import OrderedDict
+    return OrderedDict([
+        ('moulinette', get_version('moulinette')),
+        ('moulinette-yunohost', get_version('moulinette-yunohost')),
+        ('yunohost-admin', get_version('yunohost-admin')),
+    ])