ui improvements on error when registering repos

src/repo_registry/repo_ingestion/git.py

@@ -63,14 +63,20 @@ class GitIngestionService:
     def _run_git(self, args: list[str], *, cwd: Path | None) -> None:
         if shutil.which("git") is None:
             raise RuntimeError("git executable was not found")
-        result = subprocess.run(
-            ["git", *args],
-            cwd=cwd,
-            check=False,
-            capture_output=True,
-            text=True,
-            timeout=120,
-        )
+        command = ["git", *args]
+        try:
+            result = subprocess.run(
+                command,
+                cwd=cwd,
+                check=False,
+                capture_output=True,
+                text=True,
+                timeout=120,
+            )
+        except subprocess.TimeoutExpired as exc:
+            raise RuntimeError(
+                f"git {' '.join(args)} timed out after {exc.timeout} seconds"
+            ) from exc
         if result.returncode != 0:
             message = result.stderr.strip() or result.stdout.strip()
             raise RuntimeError(f"git {' '.join(args)} failed: {message}")