return all(feature in VERSION_TO_FEATURES[version] for version in target_versions)
-def find_pyproject_toml(path_search_start: str) -> Optional[str]:
+def find_pyproject_toml(path_search_start: Iterable[str]) -> Optional[str]:
"""Find the absolute filepath to a pyproject.toml if it exists"""
path_project_root = find_project_root(path_search_start)
path_pyproject_toml = path_project_root / "pyproject.toml"
if not config:
return None
+ else:
+ # Sanitize the values to be Click friendly. For more information please see:
+ # https://github.com/psf/black/issues/1458
+ # https://github.com/pallets/click/issues/1567
+ config = {
+ k: str(v) if not isinstance(v, (list, dict)) else v
+ for k, v in config.items()
+ }
target_version = config.get("target_version")
if target_version is not None and not isinstance(target_version, list):
def find_project_root(srcs: Iterable[str]) -> Path:
"""Return a directory containing .git, .hg, or pyproject.toml.
- That directory can be one of the directories passed in `srcs` or their
- common parent.
+ That directory will be a common parent of all files and directories
+ passed in `srcs`.
If no directory in the tree contains a marker that would specify it's the
project root, the root of the file system is returned.
if not srcs:
return Path("/").resolve()
- common_base = min(Path(src).resolve() for src in srcs)
- if common_base.is_dir():
- # Append a fake file so `parents` below returns `common_base_dir`, too.
- common_base /= "fake-file"
- for directory in common_base.parents:
+ path_srcs = [Path(src).resolve() for src in srcs]
+
+ # A list of lists of parents for each 'src'. 'src' is included as a
+ # "parent" of itself if it is a directory
+ src_parents = [
+ list(path.parents) + ([path] if path.is_dir() else []) for path in path_srcs
+ ]
+
+ common_base = max(
+ set.intersection(*(set(parents) for parents in src_parents)),
+ key=lambda path: path.parts,
+ )
+
+ for directory in (common_base, *common_base.parents):
if (directory / ".git").exists():
return directory