Files
routstr-core/routstr/core/version.py
T
2026-07-06 23:00:41 +02:00

82 lines
2.1 KiB
Python

"""Application version resolution.
Priority order:
1. ``VERSION_SUFFIX`` env var (manual override; preserves prior behaviour).
2. Bare base version when HEAD is on the matching release tag (detected via
``GIT_TAG`` env or ``git describe --tags --exact-match HEAD``).
3. ``GIT_COMMIT`` env var (build-time injection) -> ``<base>+g<sha>``.
4. Local ``.git`` lookup (source checkouts) -> ``<base>+g<sha>``.
5. Fallback: bare base version.
The ``+g<sha>`` form is PEP 440 local-version syntax so the result remains a
valid package version.
"""
from __future__ import annotations
import os
import subprocess
from functools import lru_cache
from pathlib import Path
BASE_VERSION = "0.4.4"
_REPO_ROOT = Path(__file__).resolve().parents[2]
_GIT_TIMEOUT_SECONDS = 2.0
def _run_git(*args: str) -> str | None:
try:
result = subprocess.run( # noqa: S603 - fixed argv, no shell
["git", *args],
cwd=_REPO_ROOT,
check=False,
capture_output=True,
text=True,
timeout=_GIT_TIMEOUT_SECONDS,
)
except (FileNotFoundError, subprocess.SubprocessError, OSError):
return None
if result.returncode != 0:
return None
return result.stdout.strip() or None
def _git_short_sha() -> str | None:
sha = os.getenv("GIT_COMMIT", "").strip()
if sha:
return sha[:7]
return _run_git("rev-parse", "--short=7", "HEAD")
def _on_tagged_release() -> bool:
tag = os.getenv("GIT_TAG", "").strip()
if tag:
return tag.lstrip("v") == BASE_VERSION
described = _run_git("describe", "--tags", "--exact-match", "HEAD")
if described and described.lstrip("v") == BASE_VERSION:
return True
return False
@lru_cache(maxsize=1)
def get_version() -> str:
suffix = os.getenv("VERSION_SUFFIX")
if suffix is not None:
return f"{BASE_VERSION}-{suffix}"
if _on_tagged_release():
return BASE_VERSION
sha = _git_short_sha()
if not sha:
return BASE_VERSION
return f"{BASE_VERSION}+g{sha}"
__version__ = get_version()
__all__ = ["BASE_VERSION", "__version__", "get_version"]