Files
pkgmgr/pkgmgr/actions/release/git_ops.py
Kevin Veen-Birkenbach 80329b85fb Release version 0.7.1
2025-12-09 15:26:56 +01:00

96 lines
3.0 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Git-related helpers for the release workflow.
Responsibilities:
- Run Git (or shell) commands with basic error reporting.
- Ensure main/master are synchronized with origin before tagging.
- Maintain the floating 'latest' tag that always points to the newest
release tag.
"""
from __future__ import annotations
import subprocess
from pkgmgr.core.git import GitError
def run_git_command(cmd: str) -> None:
"""
Run a Git (or shell) command with basic error reporting.
The command is executed via the shell, primarily for readability
when printed (as in 'git commit -am "msg"').
"""
print(f"[GIT] {cmd}")
try:
subprocess.run(cmd, shell=True, check=True)
except subprocess.CalledProcessError as exc:
print(f"[ERROR] Git command failed: {cmd}")
print(f" Exit code: {exc.returncode}")
if exc.stdout:
print("--- stdout ---")
print(exc.stdout)
if exc.stderr:
print("--- stderr ---")
print(exc.stderr)
raise GitError(f"Git command failed: {cmd}") from exc
def sync_branch_with_remote(branch: str, preview: bool = False) -> None:
"""
Ensure the local main/master branch is up-to-date before tagging.
Behaviour:
- For main/master: run 'git fetch origin' and 'git pull origin <branch>'.
- For all other branches: only log that no automatic sync is performed.
"""
if branch not in ("main", "master"):
print(
f"[INFO] Skipping automatic git pull for non-main/master branch "
f"{branch}."
)
return
print(
f"[INFO] Updating branch {branch} from origin before creating tags..."
)
if preview:
print("[PREVIEW] Would run: git fetch origin")
print(f"[PREVIEW] Would run: git pull origin {branch}")
return
run_git_command("git fetch origin")
run_git_command(f"git pull origin {branch}")
def update_latest_tag(new_tag: str, preview: bool = False) -> None:
"""
Move the floating 'latest' tag to the newly created release tag.
Implementation details:
- We explicitly dereference the tag object via `<tag>^{}` so that
'latest' always points at the underlying commit, not at another tag.
- We create/update 'latest' as an annotated tag with a short message so
Git configurations that enforce annotated/signed tags do not fail
with "no tag message".
"""
target_ref = f"{new_tag}^{{}}"
print(f"[INFO] Updating 'latest' tag to point at {new_tag} (commit {target_ref})...")
if preview:
print(f"[PREVIEW] Would run: git tag -f -a latest {target_ref} "
f'-m "Floating latest tag for {new_tag}"')
print("[PREVIEW] Would run: git push origin latest --force")
return
run_git_command(
f'git tag -f -a latest {target_ref} '
f'-m "Floating latest tag for {new_tag}"'
)
run_git_command("git push origin latest --force")