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import subprocess
from dataclasses import dataclass
from datetime import datetime
from typing import List, Set
import requests # type: ignore
@dataclass
class PullRequest:
number: int
title: str
user: str
user_url: str
url: str
class ChangelogGenerator:
def __init__(
self,
username: str,
repository: str,
current_version: str,
new_version: str,
):
self.username = username
self.repository = repository
self.base_url = f"https://api.github.com/repos/{username}/{repository}"
self.current_version = current_version
self.new_version = new_version
self.commits = self.get_commits_after_tag(current_version)
self.prs = self.get_prs_for_commits(self.commits)
def get_commits_after_tag(self, tag: str) -> List[str]:
result = subprocess.run(
["git", "log", f"{tag}..HEAD", "--pretty=format:%H"],
stdout=subprocess.PIPE,
text=True,
)
return result.stdout.split()
def get_pr_for_commit(self, commit_sha: str) -> PullRequest:
url = f"{self.base_url}/commits/{commit_sha}/pulls"
response = requests.get(url)
response.raise_for_status()
pr_data = response.json()[0]
return PullRequest(
number=pr_data["number"],
title=pr_data["title"],
user=pr_data["user"]["login"],
user_url=pr_data["user"]["html_url"],
url=pr_data["html_url"],
)
def get_prs_for_commits(self, commit_shas: List[str]) -> List[PullRequest]:
prs: List[PullRequest] = []
unique_prs: Set[int] = set()
for commit_sha in commit_shas:
pr = self.get_pr_for_commit(commit_sha)
pr_id = pr.number
if pr_id not in unique_prs:
unique_prs.add(pr_id)
prs.append(pr)
prs.sort(key=lambda pr: pr.number, reverse=True)
return prs
def generate_changelog(self) -> str:
markdown = f"\n## [{self.new_version}] - {datetime.now().strftime('%Y-%m-%d')}\n"
for pr in self.prs:
markdown += (
f"### {pr.title.capitalize()}\n"
f"- Author - [{pr.user}]({pr.user_url})\n"
f"- PR <{pr.url}>\n"
)
markdown += f"\n[{self.new_version}]: https://pypi.org/project/{self.repository}/{self.new_version}\n"
return markdown
if __name__ == "__main__":
generator = ChangelogGenerator(
username="BeanieODM",
repository="beanie",
current_version="1.30.0",
new_version="2.0.0",
)
changelog = generator.generate_changelog()
print(changelog)
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