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| import subprocess | |
| import tempfile | |
| import shutil | |
| import os | |
| from typing import Optional, Union, Dict, List | |
| def get_latest_commit_diff(repo_source: str, commit_depth: int = 1) -> Union[str, Dict[str, List[str]]]: | |
| """ | |
| Returns the differences made in a specified commit of a git repository. | |
| Args: | |
| repo_source: Path to the git repository or URL to a remote repository. | |
| Function automatically detects if it's a local path or remote URL. | |
| commit_depth: How many commits back to check (default=1 for the latest commit). | |
| For example, 2 would return the diff for the second-to-last commit. | |
| Returns: | |
| A string containing the git diff output or a dictionary with structured diff information | |
| """ | |
| temp_dir = None | |
| try: | |
| # Determine if repo_source is a remote URL or local path | |
| is_remote = repo_source.startswith(('http://', 'https://', 'git://', 'ssh://')) or repo_source.endswith('.git') | |
| # If it's a remote repository, clone it to a temporary directory | |
| if is_remote: | |
| temp_dir = tempfile.mkdtemp() | |
| print(f"Cloning remote repository: {repo_source}") | |
| clone_cmd = ["git", "clone", repo_source, temp_dir] | |
| subprocess.check_output(clone_cmd) | |
| repo_path = temp_dir | |
| else: | |
| repo_path = repo_source | |
| # Validate commit_depth parameter | |
| if commit_depth < 1: | |
| return "Error: commit_depth must be a positive integer" | |
| # Get the commit hash for the specified depth | |
| if commit_depth == 1: | |
| # For the latest commit | |
| commit_ref = "HEAD" | |
| else: | |
| # For earlier commits: HEAD~1, HEAD~2, etc. (0-indexed in git, so we subtract 1) | |
| commit_ref = f"HEAD~{commit_depth-1}" | |
| # Get the commit hash | |
| commit_cmd = ["git", "-C", repo_path, "rev-parse", commit_ref] | |
| try: | |
| commit_hash = subprocess.check_output(commit_cmd).decode('utf-8').strip() | |
| except subprocess.CalledProcessError: | |
| return f"Error: Could not find commit at depth {commit_depth}" | |
| # Get the diff from the commit | |
| diff_cmd = ["git", "-C", repo_path, "show", "--name-status", commit_hash] | |
| diff_output = subprocess.check_output(diff_cmd).decode('utf-8') | |
| # For more detailed content diff including the changes | |
| content_diff_cmd = ["git", "-C", repo_path, "show", commit_hash] | |
| content_diff = subprocess.check_output(content_diff_cmd).decode('utf-8') | |
| return content_diff | |
| except subprocess.CalledProcessError as e: | |
| return f"Error executing git command: {str(e)}" | |
| except Exception as e: | |
| return f"Unexpected error: {str(e)}" | |
| finally: | |
| # Clean up temporary directory if it was created | |
| if temp_dir and os.path.exists(temp_dir): | |
| shutil.rmtree(temp_dir) | |
| # Example usage | |
| if __name__ == "__main__": | |
| import sys | |
| if len(sys.argv) < 2: | |
| print("Usage: python main.py <repo_path_or_url> [commit_depth]") | |
| print(" repo_path_or_url: Path to local repository or URL to remote repository") | |
| print(" commit_depth: Optional - How many commits back to check (default=1 for latest commit)") | |
| sys.exit(1) | |
| repo_source = sys.argv[1] | |
| commit_depth = 1 # Default to latest commit | |
| # Check if commit_depth was provided | |
| if len(sys.argv) > 2: | |
| try: | |
| commit_depth = int(sys.argv[2]) | |
| if commit_depth < 1: | |
| print("Error: commit_depth must be a positive integer") | |
| sys.exit(1) | |
| except ValueError: | |
| print("Error: commit_depth must be an integer") | |
| sys.exit(1) | |
| print(f"Getting diff for repository: {repo_source} (commit depth: {commit_depth})") | |
| diff = get_latest_commit_diff(repo_source, commit_depth) | |
| print(diff) |