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# -*- coding: utf-8 -*-
"""Handles creating a release PR"""
from pathlib import Path
from subprocess import check_call
from typing import Tuple
from git import Commit, Head, Remote, Repo, TagReference
from packaging.version import Version
ROOT_SRC_DIR = Path(__file__).parents[1]
def main(version_str: str) -> None:
version = Version(version_str)
repo = Repo(str(ROOT_SRC_DIR))
if repo.is_dirty():
raise RuntimeError("Current repository is dirty. Please commit any changes and try again.")
upstream, release_branch = create_release_branch(repo, version)
release_commit = release_changelog(repo, version)
tag = tag_release_commit(release_commit, repo, version)
print("push release commit")
repo.git.push(upstream.name, release_branch)
print("push release tag")
repo.git.push(upstream.name, tag)
print("All done! ✨ 🍰 ✨")
def create_release_branch(repo: Repo, version: Version) -> Tuple[Remote, Head]:
print("create release branch from upstream master")
upstream = get_upstream(repo)
upstream.fetch()
branch_name = f"release-{version}"
release_branch = repo.create_head(branch_name, upstream.refs.master, force=True)
upstream.push(refspec=f"{branch_name}:{branch_name}", force=True)
release_branch.set_tracking_branch(repo.refs[f"{upstream.name}/{branch_name}"])
release_branch.checkout()
return upstream, release_branch
def get_upstream(repo: Repo) -> Remote:
for remote in repo.remotes:
for url in remote.urls:
if url.endswith("tox-dev/tox.git"):
return remote
raise RuntimeError("could not find tox-dev/tox.git remote")
def release_changelog(repo: Repo, version: Version) -> Commit:
print("generate release commit")
check_call(["towncrier", "--yes", "--version", version.public], cwd=str(ROOT_SRC_DIR))
release_commit = repo.index.commit(f"release {version}")
return release_commit
def tag_release_commit(release_commit, repo, version) -> TagReference:
print("tag release commit")
existing_tags = [x.name for x in repo.tags]
if version in existing_tags:
print("delete existing tag {}".format(version))
repo.delete_tag(version)
print("create tag {}".format(version))
tag = repo.create_tag(version, ref=release_commit, force=True)
return tag
if __name__ == "__main__":
import argparse
parser = argparse.ArgumentParser(prog="release")
parser.add_argument("--version", required=True)
options = parser.parse_args()
main(options.version)
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