feat(interpreter): handle repos without submodules in commit process

scripts/interpreter/gen_commit.py

@@ -57,7 +57,20 @@ Analyze the following git diff and generate a commit message:
     return str(response).strip()
 
 
+async def has_submodules():
+    """Check if the repository has any submodules."""
+    proc = await asyncio.create_subprocess_exec(
+        "git", "config", "--file", ".gitmodules", "--get-regexp", r"^submodule\.",
+        stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
+    )
+    stdout, stderr = await proc.communicate()
+    return bool(stdout.decode().strip())
+
+
 async def get_submodule_info():
+    if not await has_submodules():
+        return {}
+
     proc = await asyncio.create_subprocess_exec(
         "git", "config", "--file", ".gitmodules", "--get-regexp", r"^submodule\..*\.path$",
         stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,
@@ -80,6 +93,10 @@ async def get_submodule_info():
 
 
 async def commit_and_push_submodules():
+    if not await has_submodules():
+        print("No submodules found in this repository.")
+        return
+
     print("Checking for submodule changes...")
     submodule_info = await get_submodule_info()