refactor: enhance commit command with path filtering and prefix handling

- Adds path filtering to the commit command, allowing users to specify which files to include in the diff
- Introduces default exclusion patterns to ignore lock files and other non-essential files
- Ensures that generated commit messages always start with a specified prefix

src/llm_cli/cmd/commit/_app.py

@@ -1,12 +1,21 @@
 import asyncio
+from typing import Annotated
 
 import typer
 
 app = typer.Typer(name="commit")
 
 
 @app.command()
-def main() -> None:
+def main(
+    path: Annotated[list[str] | None, typer.Argument()] = None,
+    *,
+    default_exclude: Annotated[bool, typer.Option()] = True,
+    verify: Annotated[bool, typer.Option()] = True,
+) -> None:
     from ._main import main
 
-    asyncio.run(main())
+    path: list[str] = path or []
+    if default_exclude:
+        path += [":!*-lock.*", ":!*.lock*", ":!*.cspell.*"]
+    asyncio.run(main(path, verify=verify))

src/llm_cli/cmd/commit/_main.py

@@ -9,10 +9,11 @@
 import llm_cli.utils as lu
 
 
-async def main(*, verify: bool = True) -> None:
+async def main(path: list[str], *, verify: bool = True) -> None:
+    await lu.run("git", "status")
     prompt_template = string.Template(lu.get_prompt("commit"))
     repo = git.Repo(search_parent_directories=True)
-    diff: str = repo.git.diff("--cached", "--no-ext-diff")
+    diff: str = repo.git.diff("--cached", "--no-ext-diff", *path)
     files: str = repo.git.ls_files()
     prompt: str = prompt_template.substitute({"GIT_DIFF": diff, "GIT_FILES": files})
     resp: litellm.ModelResponse = await lc.output(prompt, prefix="<Answer>")

src/llm_cli/interactive/_output.py

@@ -38,6 +38,8 @@ async def output(
             response = litellm.stream_chunk_builder(chunks)  # pyright: ignore [reportAssignmentType]
             choices: litellm.Choices = response.choices[0]  # pyright: ignore [reportAssignmentType]
             content: str = choices.message.content or ""
+            if prefix and not content.startswith(prefix):
+                content = prefix + content
             if sanitize:
                 content = sanitize(content)
             live.update(