Fix /deployment/version/ endpoint to show commit_date and add deployment_date

- Fix commit_date parsing from git logs (was showing 'unknown')
- Add deployment_date field using manage.py modification time
- Improve git log parsing to handle author names with spaces
- Both dates now show in proper format: YYYY-MM-DD HH:MM:SS +timezone

The endpoint now returns:
- commit_date: When the commit was made (from git logs)
- deployment_date: When the code was deployed (from file mtime)

ivatar/views.py

@@ -876,26 +876,31 @@ def _get_git_info_from_files():
                     f.seek(max(0, file_size - chunk_size))
                     chunk = f.read().decode("utf-8", errors="ignore")
 
-                    # Find the last newline
-                    last_newline = chunk.rfind("\n")
-                    if last_newline != -1:
-                        last_line = chunk[last_newline + 1:].strip()
-                    else:
-                        last_line = chunk.strip()
+                    # Find the last non-empty line
+                    lines = chunk.split("\n")
+                    last_line = None
+                    for line in reversed(lines):
+                        if line.strip():
+                            last_line = line.strip()
+                            break
 
                     if last_line:
                         # Git log format: <old_hash> <new_hash> <author> <timestamp> <timezone> <message>
-                        parts = last_line.split("\t")
-                        if len(parts) >= 2:
+                        # The format uses spaces, not tabs
+                        parts = last_line.split()
+                        if len(parts) >= 6:
                             # Extract timestamp and convert to readable date
-                            timestamp_part = parts[0].split()[-2]  # Get timestamp
-                            if timestamp_part.isdigit():
-                                import datetime
+                            # Format: <old_hash> <new_hash> <author_name> <author_email> <timestamp> <timezone> <message>
+                            # We need to find the timestamp which is after the author email
+                            for i, part in enumerate(parts):
+                                if part.isdigit() and len(part) == 10:  # Unix timestamp
+                                    import datetime
 
-                                timestamp = int(timestamp_part)
-                                commit_date = datetime.datetime.fromtimestamp(
-                                    timestamp
-                                ).strftime("%Y-%m-%d %H:%M:%S %z")
+                                    timestamp = int(part)
+                                    commit_date = datetime.datetime.fromtimestamp(
+                                        timestamp
+                                    ).strftime("%Y-%m-%d %H:%M:%S %z")
+                                    break
             except (ValueError, IndexError, UnicodeDecodeError):
                 pass
 
@@ -911,11 +916,27 @@ def _get_git_info_from_files():
             except Exception:
                 commit_date = "unknown"
 
+        # Get deployment date from file modification time
+        # Use manage.py as it's always updated during deployment
+        deployment_date = None
+        manage_py_path = path.join(project_root, "manage.py")
+        if path.exists(manage_py_path):
+            try:
+                import datetime
+
+                mtime = path.getmtime(manage_py_path)
+                deployment_date = datetime.datetime.fromtimestamp(mtime).strftime(
+                    "%Y-%m-%d %H:%M:%S %z"
+                )
+            except Exception:
+                deployment_date = "unknown"
+
         return {
             "commit_hash": commit_hash,
             "short_hash": commit_hash[:7] if len(commit_hash) >= 7 else commit_hash,
             "branch": branch_name,
             "commit_date": commit_date or "unknown",
+            "deployment_date": deployment_date or "unknown",
             "deployment_status": "active",
             "version": f"{branch_name}-{commit_hash[:7] if len(commit_hash) >= 7 else commit_hash}",
         }