import backoff
+
+class GitCacheError(Exception):
+ pass
+
+
Path = str # eg: "/home/user/.cache/git-cache/v1"
Repo = str # eg: "https://github.com/NixOS/nixpkgs.git"
Ref = str # eg: "master" or "v1.0.0"
ancestor: RefOrRev,
force: bool = False) -> None:
if not force and not is_ancestor(repo, descendant, ancestor):
- raise Exception(f'{ancestor} is not an ancestor of {descendant}')
+ raise GitCacheError(f'{ancestor} is not an ancestor of {descendant}')
def _read_fetch_log(repo: Repo) -> Iterator[_LogEntry]: