[Version]Send a little message to the owner and admins when Willie is…

…n't updated.

version.py

@@ -2,6 +2,7 @@
 """
 version.py - Willie Version Module
 Copyright 2009, Silas Baronda
+Copyright 2014, Dimitri Molenaars <tyrope@tyrope.nl>
 Licensed under the Eiffel Forum License 2.
 
 http://willie.dftba.net
@@ -12,6 +13,7 @@
 import willie
 import re
 from os import path
+import json
 
 log_line = re.compile('\S+ (\S+) (.*? <.*?>) (\d+) (\S+)\tcommit[^:]*: (.+)')
 
@@ -76,3 +78,50 @@ def ctcp_time(bot, trigger):
     current_time = dt.strftime("%A, %d. %B %Y %I:%M%p")
     bot.write(('NOTICE', trigger.nick),
               '\x01TIME {0}\x01'.format(current_time))
+
+@willie.module.interval(86400)
+def version_check(bot):
+    """
+    This functions checks every 24 hours if there's a new version available.
+    """
+
+    message_release = "My version doesn't match the latest release (%s(latest)s). I'm on %(local)s. Please update me."
+    message_git = "My version doesn't match the master branch (%(latest)s). I'm on %(local)s). Please update me."
+
+    API_url = 'https://api.github.com/repos/embolalia/willie/'
+
+    git_HEAD = git_info()
+    if not git_HEAD:
+        # Running a release version.
+        API_result = willie.web.get(API_url + 'releases')
+
+        # Get the first(0) release name('name'), which should be the latest.
+        latest_release = json.loads(API_result)[0]['name'].encode('utf-8')
+
+        if willie.__version__ != latest_release:
+            # We're not updated!
+            # Message the owner.
+            bot.msg(bot.config.core.owner, message_release %
+                    {'latest': latest_release, 'local': willie.__version__ })
+            for admin in bot.config.core.admins:
+                # Message the admins as well.
+                bot.msg(admin, message_release %
+                        {'latest': latest_release, 'local': willie.__version__ })
+    else:
+        # Running a -git version.
+        API_result = willie.web.get(API_url + 'commits/master')
+
+        # Get latest commit's hash('sha').
+        remote_HEAD = json.loads(API_result)['sha'].encode('utf-8')
+
+        if git_HEAD.strip() != remote_HEAD:
+            # We're not updated! Note that this might mean you're AHEAD of master,
+            # or on a different repo. At which case, you should know what you're doing.
+            # Message the owner.
+            bot.msg(bot.config.core.owner, message_git %
+                    {'latest': remote_HEAD, 'local': git_HEAD })
+            for admin in bot.config.core.admins:
+                # Message the admins as well.
+                bot.msg(admin, message_git %
+                        {'latest': remote_HEAD, 'local': git_HEAD })
+