| import hashlib |
| import json |
| from pathlib import Path |
| import subprocess |
| import sys |
| import tarfile |
|
|
|
|
| manifest, iid, archive, destination = sys.argv[1:] |
| record = json.loads(Path(manifest).read_text())['contexts'][iid] |
| archive = Path(archive) |
| destination = Path(destination).resolve() |
|
|
|
|
| def digest(path): |
| value = hashlib.sha256() |
| with path.open('rb') as stream: |
| for chunk in iter(lambda: stream.read(1024 * 1024), b''): |
| value.update(chunk) |
| return value.hexdigest() |
|
|
|
|
| assert digest(archive) == record['archive_sha256'], 'Context archive hash mismatch' |
| with tarfile.open(archive) as bundle: |
| bundle.extractall(destination, filter='data') |
| gold = destination/'executable' |
| assert gold.is_file() and not gold.is_symlink() |
| assert digest(gold) == record['gold_sha256'], 'Reference hash mismatch' |
| assert (destination/'.git/HEAD').is_file(), 'Missing Git HEAD' |
| git = ['git', '-C', str(destination)] |
| assert subprocess.run(git+['rev-parse','--verify','HEAD'],capture_output=True).returncode == 0 |
| for command in (['show','HEAD:executable'], ['ls-files','--error-unmatch','executable']): |
| assert subprocess.run(git+command,capture_output=True).returncode != 0, 'Reference tracked by Git' |
| history = subprocess.run(git+['rev-list','--all','--objects','--','executable'],capture_output=True) |
| assert history.returncode == 0 and not history.stdout.strip(), 'Reference path in Git history' |
| for path in destination.rglob('*'): |
| if path.name == '.git' and path.is_dir() and (path/'HEAD').is_file(): |
| check = subprocess.run(['git','--git-dir',str(path),'cat-file','-e',record['gold_git_blob']],capture_output=True) |
| assert check.returncode != 0, 'Reference blob in a Git object database' |
| if path.is_file() and path != gold: |
| assert digest(path) != record['gold_sha256'], 'Duplicate reference file: '+str(path) |
| print(record['gold_sha256'],record['gold_git_blob']) |
|
|
