Fix Git source sync failures

backend/app/git_source.py

@@ -1,6 +1,7 @@
 # Git Source Operations for Repository Cloning and File Discovery
 import os
 import shutil
+from subprocess import run
 from pathlib import Path
 from typing import List, Optional, Dict, Any
 
@@ -27,6 +28,13 @@ class GitCloneError(Exception):
     pass
 
 
+def run_git(command: List[str]) -> None:
+    result = run(command, capture_output=True, text=True)
+    if result.returncode != 0:
+        error = (result.stderr or result.stdout or "unknown git error").strip()
+        raise GitCloneError(error)
+
+
 def clone_or_update_repo(
     repo_id: str,
     repo_url: str,
@@ -55,37 +63,26 @@ def clone_or_update_repo(
         if repo_path.exists():
             # Update existing clone
             print(f"  [Git] Updating existing clone at {repo_path}")
-            
-            from subprocess import run, CalledProcessError
-            import subprocess
-            
+
             # Fetch latest changes
-            result = run(
-                ["git", "-C", str(repo_path), "fetch", "origin"],
-                capture_output=True,
-                text=True
-            )
-            
-            if result.returncode != 0:
-                raise GitCloneError(f"Failed to fetch: {result.stderr}")
-            
+            run_git(["git", "-C", str(repo_path), "fetch", "origin"])
+
             # Reset to branch
-            run(
-                ["git", "-C", str(repo_path), "reset", "--hard", "origin/" + branch],
-                capture_output=True,
-                text=True
-            )
+            run_git(["git", "-C", str(repo_path), "reset", "--hard", "origin/" + branch])
         else:
             # Clone new repository
             print(f"  [Git] Cloning {repo_url} to {repo_path}")
-            
-            run(
-                ["git", "-C", str(repo_path.parent), "clone", 
-                 "--branch", branch, 
-                 "--single-branch",
-                 repo_url, "."],
-                capture_output=True,
-                text=True
+
+            run_git(
+                [
+                    "git",
+                    "clone",
+                    "--branch",
+                    branch,
+                    "--single-branch",
+                    repo_url,
+                    str(repo_path),
+                ]
             )
         
         print(f"  [Git] Checked out branch: {branch}")
@@ -97,8 +94,8 @@ def clone_or_update_repo(
             "branch": branch
         }
         
-    except CalledProcessError as e:
-        raise GitCloneError(f"Git command failed: {e.stderr}") from e
+    except GitCloneError:
+        raise
     except Exception as e:
         raise GitCloneError(f"Failed to clone/update repo: {e}") from e
 
@@ -386,4 +383,4 @@ async def sync_sources(
         
         results.append(result)
     
-    return results
+    return results