aider-gitea/aider_gitea/__main__.py

#!/usr/bin/env python3
"""
This script downloads issues from a given Gitea repository and produces a pull request for each issue.
It assumes that the default branch (default "main") exists and that you have a valid API token if authentication is required.
"""

import logging
from pathlib import Path
import argparse
import requests
import sys
import dataclasses
import tempfile
import subprocess
import os
import time

import re
from . import secrets
from .seen_issues_db import SeenIssuesDB

def generate_branch_name(issue_number: str, issue_title: str) -> str:
    """
    Create a branch name by sanitizing the issue title.
    Non-alphanumeric characters (except spaces) are removed,
    the text is lowercased, and spaces are replaced with dashes.
    """
    sanitized = re.sub(r"[^0-9a-zA-Z ]+", "", issue_title)
    parts = ['issue', str(issue_number), *sanitized.lower().split()]
    return "-".join(parts)

logger = logging.getLogger(__name__)

def bash_cmd(*commands: str) -> str:
    return "bash -c \""+';'.join(commands)+"\""

AIDER_TEST=bash_cmd(
    "virtualenv venv",
    "source venv/bin/activate",
    "pip install -e .",
    "pytest test",
)

AIDER_LINT=bash_cmd(
    "ruff format",
    "ruff check --fix --ignore RUF022 --ignore PGH004",
    "ruff format",
    "ruff check --ignore RUF022 --ignore PGH004",
)


#MODEL = 'o3-mini'
#MODEL = 'claude-3-7-sonnet'

LLM_MESSAGE_FORMAT = """
{issue}

# Solution Details

For code tasks:

1. Create a plan for how to solve the issue.
2. Write unit tests that proves that your solution works.
3. Then, solve the issue by writing the required code.
"""

def create_aider_command(issue: str) -> list[str]:
    return [
        'aider',
          #'--model', MODEL,
          '--chat-language',  'english',
          '--test-cmd', AIDER_TEST,
          '--lint-cmd', AIDER_LINT,
          '--auto-test',
          '--no-auto-lint',
          '--api-key', secrets.llm_api_key(),
          '--read', 'CONVENTIONS.md',
          '--message', LLM_MESSAGE_FORMAT.format(issue=issue),
          '--yes-always',
          '--architect',
    ]

class GiteaClient:

    def __init__(self, gitea_url: str, token: str) -> None:
        assert not gitea_url.endswith('/api/v1')
        self.gitea_url = gitea_url + '/api/v1'
        self.session = requests.Session()
        self.session.headers["Content-Type"] = "application/json"
        if token:
            self.session.headers["Authorization"] = f"token {token}"

    def get_default_branch_sha(self, owner, repo, branch):
        """Retrieve the commit SHA of the default branch."""
        url = f"{self.gitea_url}/repos/{owner}/{repo}/branches/{branch}"
        response = self.session.get(url)
        response.raise_for_status()
        data = response.json()
        return data['commit']['sha']

    def create_branch(self, owner, repo, new_branch, sha):
        """Create a new branch from the provided SHA."""
        url = f"{self.gitea_url}/repos/{owner}/{repo}/git/refs"
        json_data = {"ref": f"refs/heads/{new_branch}", "sha": sha}
        response = self.session.post(url,  json=json_data)
        if response.status_code == 422:
            logger.warning(f"Branch {new_branch} already exists.")
            return False
        response.raise_for_status()
        return True

    def get_issues(self, owner, repo):
        """Download issues from the specified repository and filter those with the aider label."""
        url = f"{self.gitea_url}/repos/{owner}/{repo}/issues"
        response = self.session.get(url)
        response.raise_for_status()
        issues = response.json()
        # Filter to only include issues marked with the "aider" label.
        issues = [
            issue for issue in issues
            if any(label.get("name") == "aider" for label in issue.get("labels", []))
        ]
        return issues

def parse_args():
    parser = argparse.ArgumentParser(description="Download issues and create pull requests for a Gitea repository.")
    parser.add_argument("--gitea-url", required=True, help="Base URL for the Gitea instance, e.g., https://gitfub.space/api/v1")
    parser.add_argument("--owner", required=True, help="Owner of the repository")
    parser.add_argument("--repo", required=True, help="Repository name")
    parser.add_argument("--base-branch", default="main", help="Base branch to use for new branches (default: main)")
    parser.add_argument("--daemon", action="store_true", help="Run in daemon mode to continuously monitor for new issues")
    parser.add_argument("--interval", type=int, default=300, help="Interval in seconds between checks in daemon mode (default: 300)")
    return parser.parse_args()

def push_changes(cwd: Path, branch_name: str, issue_number: str, issue_title: str, issue_description: str, base_branch: str) -> None:
    cmd = [
        "git",
        "push",
        "origin",
        f"HEAD:refs/for/{base_branch}",
        "-o",
        f"topic={branch_name}",
        "-o",
        f"title={issue_title}",
        "-o",
        f"description=This pull request resolves #{issue_number}",
    ]
    run_cmd(cmd, cwd)

def run_cmd(cmd: list[str], cwd:Path|None=None) -> None:
    print(cmd)
    subprocess.run(cmd, check=True, cwd=cwd)


def process_issue(args, tmpdirname: Path, branch_name: str, issue_title: str, issue_description: str, issue_number: str):
    repo_url = f"{args.gitea_url}:{args.owner}/{args.repo}.git".replace('https://', 'git@')
    run_cmd(["git", "clone", repo_url, tmpdirname])
    run_cmd(['bash', '-c', AIDER_TEST], tmpdirname)
    run_cmd(["git", "checkout", args.base_branch], tmpdirname)
    run_cmd(["git", "checkout", "-b", branch_name], tmpdirname)
    run_cmd(create_aider_command(f'# {issue_title}\n{issue_description}'), tmpdirname)
    run_cmd(["git", "add", "."], tmpdirname)
    push_changes(tmpdirname, branch_name, issue_number, issue_title, issue_description, args.base_branch)

def handle_issues(args, client, seen_issues_db):
    """Process all open issues with the 'aider' label."""
    try:
        issues = client.get_issues(args.owner, args.repo)
    except Exception:
        logger.exception('Failed to retrieve issues')
        sys.exit(1)

    if not issues:
        logger.info("No issues found.")
        return

    for issue in issues:
        issue_number = issue.get("number")
        issue_description = issue.get("body", "")
        title = issue.get("title", f"Issue {issue_number}")
        issue_text = f"{title}\n{issue_description}"
        if seen_issues_db.has_seen(issue_text):
            logger.info(f"Skipping already processed issue #{issue_number}: {title}")
            continue

        branch_name = generate_branch_name(issue_number, title)
        try:
            with tempfile.TemporaryDirectory() as tmpdirname:
                process_issue(args, Path(tmpdirname), branch_name, title, issue_description, issue_number)
        except Exception:
            logger.exception('Error processing issue')
            sys.exit(1)

        seen_issues_db.mark_as_seen(issue_text)

def main():
    logging.basicConfig(level='INFO')
    args = parse_args()

    seen_issues_db = SeenIssuesDB()
    client = GiteaClient(args.gitea_url, secrets.gitea_token())

    if args.daemon:
        logger.info(f"Starting daemon mode, checking for new issues every {args.interval} seconds")
        try:
            while True:
                logger.info("Checking for new issues...")
                handle_issues(args, client, seen_issues_db)
                logger.info(f"Sleeping for {args.interval} seconds...")
                time.sleep(args.interval)
        except KeyboardInterrupt:
            logger.info("Daemon stopped by user")
    else:
        # One-off run
        handle_issues(args, client, seen_issues_db)

if __name__ == "__main__":
    main()