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from pathlib import Path
from typing import List, Set
from github import Github
from github.Repository import Repository
from github.GithubException import GithubException
import sys
import yaml
def add_reviewers(
reviewers: Set[str], team_reviewers: Set[str], new_entries: List[str]
):
for reviewer in new_entries:
if reviewer.startswith("@"):
team_reviewers.add(reviewer[1:])
else:
reviewers.add(reviewer)
def update_reviewers(config, repo: Repository, pr_id: int) -> int:
pull_request = repo.get_pull(pr_id)
if not pull_request:
sys.stderr.writable(f"Unknown PR #{pr_id}\n")
return 1
pull_request_author = pull_request.user.login
reviewers = set()
team_reviewers = set()
for label in pull_request.labels:
if label.name in config:
add_reviewers(reviewers, team_reviewers, config[label.name])
if "default" in config:
add_reviewers(reviewers, team_reviewers, config["default"])
if pull_request_author in reviewers:
reviewers.remove(pull_request_author)
try:
reviewers = list(reviewers)
team_reviewers = list(team_reviewers)
print(
f"Attempting to assign reviewers ({reviewers}) and team_reviewers ({team_reviewers})"
)
pull_request.create_review_request(reviewers, team_reviewers)
return 0
except GithubException as e:
sys.stderr.write(f"Cannot assign review request for PR #{pr_id}: {e}\n")
return 1
if __name__ == "__main__":
if len(sys.argv) != 5:
sys.stderr.write("usage: <token> <repo_path> <pr_id> <config_path>\n")
sys.exit(1)
token = sys.argv[1]
repo_path = sys.argv[2]
pr_id = int(sys.argv[3])
config_path = Path(sys.argv[4])
g = Github(token)
repo = g.get_repo(repo_path)
if not repo:
sys.stderr.write("Repository not found!\n")
sys.exit(1)
if not config_path.exists():
sys.stderr.write(f'Config "{config_path}" not found!\n')
sys.exit(1)
with open(config_path, "r") as f:
config = yaml.safe_load(f)
sys.exit(update_reviewers(config, repo, pr_id))
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