Adapted the script to welcome a change on other branches than 'master'

app.py

@@ -15,11 +15,13 @@ def index():
     if request.headers.get('X-Gitlab-Event') == 'Push Hook':
         print("push hook")
         data = json.load(request.body)
-        print(data)
+        #print(data)
 
         repo = data.get("repository")
         git_http_url = repo.get("git_http_url")
         project = data.get("project")
+        print(project)
+        branch = project.get("default_branch")
         #ns = data.get("namespace")
         ns = "osp"
 
@@ -28,7 +30,7 @@ def index():
 
         if os.path.isdir(repo_local_path):
             print("repo exists. Pulling")
-            cmd = "git fetch origin master:master"
+            cmd = "git fetch origin %s:%s" % (branch, branch)
             subprocess.Popen(shlex.split(cmd), cwd=repo_local_path)
         else:
             print("repo don't exist. Cloning")