| """Refuse to run any offload test suite with git's repository-locating variables set. | |
| 2026-10-27 ~20:02Z: an R-SP suite run exported GIT_DIR=<dsv41-deploy>/.git so that lineage tests could find the repo. Every | |
| fixture that builds a throwaway repository with `git init/commit/checkout` then wrote into the real repository instead: | |
| offload-x86host moved onto a fixture commit and the main checkout was detached onto three commits that delete every tracked | |
| file (the coordinator restored 535f344). Fixture git calls rely on cwd discovery, so these variables must never reach them. | |
| """ | |
| from __future__ import annotations | |
| import os | |
| _REPO_VARS = ('GIT_DIR', 'GIT_WORK_TREE', 'GIT_INDEX_FILE', 'GIT_COMMON_DIR', 'GIT_OBJECT_DIRECTORY', | |
| 'GIT_ALTERNATE_OBJECT_DIRECTORIES', 'GIT_NAMESPACE') | |
| _set = {name: os.environ[name] for name in _REPO_VARS if name in os.environ} | |
| if _set: | |
| raise RuntimeError('offload tests refuse to run with ' + ', '.join(f'{k}={v}' for k, v in sorted(_set.items())) | |
| + ': fixture git commands would write into that repository. Unset them; tests that need the real ' | |
| 'repository find it from the working directory.') | |