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giant/tests/test_release_tooling.py
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lars 5b478d2831 Auto-bump patch version, tag, and update changelog on merge to master (gitea #50)
Version bumps and release tags were entirely manual; the only CI automation
was sync-version-on-tag, which corrects pyproject.toml if a hand-pushed tag
drifted. This flips that: a new bump-version job (needs the four existing
checks, gated to actual merge commits on master via HEAD^@'s parent count so
direct/squash/rebase pushes are untouched) uses bump-my-version to auto-bump
the patch version when a merged branch didn't already bump it itself, then
generates a changelog entry with git-cliff and pushes a matching vX.Y.Z tag.

git-cliff's cliff.toml is tuned to this repo's plain imperative commit style
(no feat:/fix: prefixes): commits are grouped Added/Fixed/Removed/Changed by
leading verb, "(gitea #N)" is linkified, and merge/[skip ci] commits are
dropped. Per user decision during planning: the changelog generator folds in
@lars's comment on the issue (asking to fold in changelog generation rather
than deferring it), and CHANGELOG.md starts fresh with no backfill of
v0.2.0-v0.3.3.

sync-version-on-tag is left untouched as the safety net for hand-tagging.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-18 10:40:19 +02:00

78 lines
2.7 KiB
Python

"""Config-correctness tests for the CI version-bump/tag/changelog automation
(gitea #50). The workflow YAML itself can only be exercised by a real push to
master, so these check the two config files it drives (.bumpversion.toml,
cliff.toml) against real repo content instead.
"""
import re
import shutil
import subprocess
import tomllib
from pathlib import Path
import pytest
_ROOT = Path(__file__).resolve().parents[1]
def test_bumpversion_search_pattern_matches_pyproject():
bump_config = tomllib.loads((_ROOT / ".bumpversion.toml").read_text())["tool"]["bumpversion"]
current_version = bump_config["current_version"]
search = bump_config["files"][0]["search"].format(current_version=current_version)
pyproject = (_ROOT / "pyproject.toml").read_text()
assert search in pyproject, (
f"bumpversion search pattern {search!r} (rendered from .bumpversion.toml's "
f"current_version={current_version!r}) not found in pyproject.toml — "
"the bump would silently edit nothing"
)
@pytest.mark.skipif(shutil.which("git-cliff") is None, reason="git-cliff binary not on PATH")
def test_cliff_config_groups_and_links_commits(tmp_path):
repo = tmp_path / "repo"
repo.mkdir()
subprocess.run(["git", "init", "-q"], cwd=repo, check=True)
subprocess.run(["git", "config", "user.name", "test"], cwd=repo, check=True)
subprocess.run(["git", "config", "user.email", "test@example.com"], cwd=repo, check=True)
_commit(repo, "Add class-balanced secondary particle-type loss (gitea #44)")
_commit(repo, "Fix leaking secondary energy budget")
_commit(repo, "Merge pull request 'Add X' (#1) from fix/issue-1 into master")
_commit(repo, "chore: bump version 0.3.3 -> 0.3.4 [skip ci]")
result = subprocess.run(
[
"git-cliff",
"--config",
str(_ROOT / "cliff.toml"),
"--repository",
str(repo),
"--tag",
"v0.3.4",
"--unreleased",
],
capture_output=True,
text=True,
check=True,
)
changelog = result.stdout
assert "## [0.3.4]" in changelog
assert "### Added" in changelog
assert "### Fixed" in changelog
assert re.search(
r"\[gitea #44\]\(https://git\.larsbogner\.de/lars/giant/issues/44\)",
changelog,
)
assert "Add class-balanced secondary particle-type loss" in changelog
assert "Fix leaking secondary energy budget" in changelog
assert "Merge pull request" not in changelog
assert "skip ci" not in changelog
def _commit(repo: Path, message: str) -> None:
(repo / "f.txt").write_text(message)
subprocess.run(["git", "add", "f.txt"], cwd=repo, check=True)
subprocess.run(["git", "commit", "-q", "-m", message], cwd=repo, check=True)