| """Git utilities, adopted from mypy's git utilities (https://github.com/python/mypy/blob/master/mypy/git.py).""" | |
| from __future__ import annotations | |
| import os | |
| import subprocess | |
| def is_git_repo(dir: str) -> bool: | |
| """Is the given directory version-controlled with git?""" | |
| return os.path.exists(os.path.join(dir, '.git')) | |
| def have_git() -> bool: | |
| """Can we run the git executable?""" | |
| try: | |
| subprocess.check_output(['git', '--help']) | |
| return True | |
| except subprocess.CalledProcessError: | |
| return False | |
| except OSError: | |
| return False | |
| def git_revision(dir: str) -> str: | |
| """Get the SHA-1 of the HEAD of a git repository.""" | |
| return subprocess.check_output(['git', 'rev-parse', '--short', 'HEAD'], cwd=dir).decode('utf-8').strip() | |