codekingpro/portable-devtools

1import os2import sys3from typing import Union4 5if sys.version_info >= (3, 9):6    StrPath = Union[str, os.PathLike[str]]  #  Same as _typeshed.StrPath7else:8    StrPath = Union[str, os.PathLike]9 10 11def ensure_directory(path):12    """Ensure that the parent directory of `path` exists"""13    dirname = os.path.dirname(path)14    os.makedirs(dirname, exist_ok=True)15 16 17def same_path(p1: StrPath, p2: StrPath) -> bool:18    """Differs from os.path.samefile because it does not require paths to exist.19    Purely string based (no comparison between i-nodes).20    >>> same_path("a/b", "./a/b")21    True22    >>> same_path("a/b", "a/./b")23    True24    >>> same_path("a/b", "././a/b")25    True26    >>> same_path("a/b", "./a/b/c/..")27    True28    >>> same_path("a/b", "../a/b/c")29    False30    >>> same_path("a", "a/b")31    False32    """33    return normpath(p1) == normpath(p2)34 35 36def normpath(filename: StrPath) -> str:37    """Normalize a file/dir name for comparison purposes."""38    # See pkg_resources.normalize_path for notes about cygwin39    file = os.path.abspath(filename) if sys.platform == 'cygwin' else filename40    return os.path.normcase(os.path.realpath(os.path.normpath(file)))41