Add full hash, date and latest tag to about.html

Close #78

webapp/views.py

@@ -11,6 +11,7 @@ from django.conf import settings
 
 import logging
 import requests
+from dealer.git import git
 
 from webapp.models import PresetKaehmyRole, CustomKaehmyRole
 from webapp.models import OhlhafvChallenge, KaehmyForm, TelegramChannel
@@ -81,7 +82,16 @@ def logout_view(request, *args, **kwargs):
 @require_http_methods(["GET"])
 def about_view(request, *args, **kwargs):
     """Render about page."""
-    return render(request, "about.html", {})
+    repo = git.init_repo()
+    latest_commit = repo.git("rev-parse HEAD").decode('utf-8')
+    latest_date = repo.git("show -s --format=%ci " + latest_commit).decode('utf-8')
+    latest_tag = repo.git("describe --tags " + repo.git("rev-list --tags --max-count=1").decode('utf-8')).decode('utf-8')
+    context = {
+        'commit': latest_commit,
+        'date': latest_date,
+        'tag': latest_tag
+    }
+    return render(request, "about.html", context)
 
 
 @require_http_methods(["GET"])