[deploy] Add commit catpure to deploy step

vrobbler/context_processors.py

@@ -12,6 +12,25 @@ def version_info(request):
 
     commit = os.environ.get("VROBBLER_COMMIT")
     if not commit:
+        # Try to import from _commit.py module first
+        try:
+            from vrobbler._commit import commit
+        except ImportError:
+            pass
+        else:
+            return {"app_version": app_version, "git_commit": commit}
+
+        # Try to read from commit file (written during deploy)
+        commit_file = Path("/var/lib/vrobbler/commit.txt")
+        if commit_file.exists():
+            try:
+                commit = commit_file.read_text().strip()
+                if commit:
+                    return {"app_version": app_version, "git_commit": commit}
+            except OSError:
+                pass
+
+        # Fall back to git command
         PROJECT_ROOT = Path(__file__).resolve().parent.parent
         try:
             commit = (