| #!/usr/bin/env python3 |
| # |
| # Copyright 2013 The Flutter Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Get the Git HEAD revision of a specified Git repository.""" |
| |
| import sys |
| import subprocess |
| import os |
| import argparse |
| from shutil import which # Natively supported since python 3.3 |
| |
| |
| def get_repository_version(repository): |
| 'Returns the Git HEAD for the supplied repository path as a string.' |
| if not os.path.exists(repository): |
| raise IOError('path does not exist') |
| |
| git_candidates = ['git', 'git.sh', 'git.bat'] |
| git = next(filter(which, git_candidates), None) |
| if git is None: |
| candidates = "', '".join(git_candidates) |
| raise IOError(f"Looks like GIT is not on the path. Tried '{candidates}'") |
| |
| version = subprocess.check_output([ |
| git, |
| '-C', |
| repository, |
| 'rev-parse', |
| 'HEAD', |
| ]) |
| |
| return str(version.strip(), 'utf-8') |
| |
| |
| def main(): |
| parser = argparse.ArgumentParser() |
| |
| parser.add_argument( |
| '--repository', |
| action='store', |
| help='Path to the Git repository.', |
| required=True |
| ) |
| |
| args = parser.parse_args() |
| repository = os.path.abspath(args.repository) |
| version = get_repository_version(repository) |
| print(version.strip()) |
| |
| return 0 |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main()) |