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devx/src/devx/ci/fix_pr_title.py
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emil ddfbdec956
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DEVX-136: feat: add fix_pr_title module and update_pr API method
2026-07-13 23:55:11 +00:00

128 lines
4.5 KiB
Python

#!/usr/bin/env python3
"""Auto-fix PR title to follow the ``{PREFIX}-N: <title>`` convention.
Reads the task ID from the branch name, fetches the Vikunja task title,
and updates the PR title via the Gitea API.
Exit codes:
0 = PR title updated (or already correct)
1 = Error (missing token, PR not found, etc.)
Usage::
python3 -m devx.ci.fix_pr_title --repo owner/repo --pr-number 123
python3 -m devx.ci.fix_pr_title --repo owner/repo --branch DEVX-256-fix-foo --pr-number 123
"""
from __future__ import annotations
import click
from dotenv import load_dotenv # pyright: ignore[reportMissingImports,reportUnknownVariableType]
from devx.api_clients import GiteaClient
from devx.ci.auto_merge import extract_task_id
from devx.ci.check_auto_merge_ready import get_vikunja_title_optional
from devx.config import (
GITEA_API_URL,
TASK_PREFIX,
)
from devx.exceptions import APIError
from devx.i18n import _
from devx.tokens import get_ci_token
load_dotenv()
@click.command()
@click.option("--repo", required=True, help=_("Repository in owner/name format"))
@click.option("--pr-number", type=int, required=True, help=_("PR number to fix"))
@click.option("--branch", default=None, help=_("Branch name (auto-fetched from PR if not given)"))
@click.option("--dry-run", is_flag=True, help=_("Show what would change without updating"))
def cli(repo: str, pr_number: int, branch: str | None, dry_run: bool) -> None:
"""Fix PR title to follow the ``{PREFIX}-N: <title>`` convention."""
if "/" not in repo:
raise click.ClickException(_("Repo must be in 'owner/name' format, got: {repo}", repo=repo))
owner, repo_name = repo.split("/", 1)
# 1. Get CI token
try:
token = get_ci_token()
except click.ClickException as exc:
raise click.ClickException(_("CI_GITEA_API_TOKEN not set: {error}", error=str(exc))) from exc
client = GiteaClient(GITEA_API_URL, token, owner, repo_name)
# 2. Fetch PR
try:
pr = client.get_pr(pr_number)
except APIError as exc:
raise click.ClickException(_("Failed to fetch PR #{pr}: {error}", pr=pr_number, error=str(exc))) from exc
current_title = str(pr.get("title", ""))
if not branch:
branch = str(pr.get("head", {}).get("ref", ""))
if not branch:
raise click.ClickException(_("Could not determine branch name from PR #{pr}", pr=pr_number))
click.echo(f"[fix-pr-title] Branch: {branch}")
click.echo(f"[fix-pr-title] Current PR title: {current_title}")
# 3. Extract task ID from branch
task_id = extract_task_id(branch)
if not task_id:
raise click.ClickException(
_(
"No task ID found in branch '{branch}'. Expected format: {prefix}-N-description.",
branch=branch,
prefix=TASK_PREFIX,
)
)
click.echo(f"[fix-pr-title] Task ID: {task_id}")
# 4. Get Vikunja task title
vikunja_title = get_vikunja_title_optional(task_id)
if vikunja_title is None:
# Fallback: strip common prefixes from current title
# (e.g. "fix: ...", "feat: ...", "refactor: ...")
import re
stripped = re.sub(
r"^(fix|feat|refactor|chore|docs|test|ci|build|perf|style|revert)(\(.+?\))?!?:\s*", "", current_title
)
# Also strip any leading task ID prefix
stripped = re.sub(rf"^{TASK_PREFIX}-\d+:\s*", "", stripped)
vikunja_title = stripped if stripped else current_title
click.echo(f"[fix-pr-title] WARNING: Vikunja task not found — using stripped title: {vikunja_title}")
else:
click.echo(f"[fix-pr-title] Vikunja title: {vikunja_title}")
# 5. Build new title
# Defensive: strip task ID prefix from Vikunja title if present
if vikunja_title.startswith(f"{task_id}:"):
vikunja_title = vikunja_title[len(f"{task_id}:") :].strip()
new_title = f"{task_id}: {vikunja_title}"
if current_title == new_title:
click.echo(f"[fix-pr-title] PR title already correct: {new_title}")
return
click.echo(f"[fix-pr-title] New PR title: {new_title}")
if dry_run:
click.echo("[fix-pr-title] Dry run — not updating PR.")
return
# 6. Update PR title
try:
client.update_pr(pr_number, {"title": new_title})
except APIError as exc:
raise click.ClickException(_("Failed to update PR #{pr}: {error}", pr=pr_number, error=str(exc))) from exc
click.echo(f"[fix-pr-title] PR #{pr_number} title updated to: {new_title}")
if __name__ == "__main__": # pragma: no cover
cli() # pragma: no cover