68 lines
1.7 KiB
Python
68 lines
1.7 KiB
Python
import os
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import platform
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_WINDOWS_PLATFORM = platform.system() == "Windows"
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def combine(path1: str, path2) -> str:
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if not path1:
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return path2
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return "{}/{}".format(path1.rstrip("/"), path2.lstrip("/"))
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def split(path: str) -> tuple[str, str]:
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if "/" not in path:
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return ("", path)
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split = path.rsplit("/", 1)
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return (split[0] or "/", split[1])
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def dirname(path: str) -> str:
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return split(path)[0]
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def basename(path: str) -> str:
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return split(path)[1]
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def forcedir(path: str) -> str:
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# Ensure the path ends with a trailing forward slash.
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if not path.endswith("/"):
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return path + "/"
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return path
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def abspath(path: str) -> str:
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# FS objects have no concept of a *current directory*. This simply
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# ensures the path starts with a forward slash.
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if not path.startswith("/"):
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return "/" + path
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return path
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def isbase(path1: str, path2: str) -> bool:
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# Check if `path1` is a base or prefix of `path2`.
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_path1 = forcedir(abspath(path1))
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_path2 = forcedir(abspath(path2))
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return _path2.startswith(_path1)
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def frombase(path1: str, path2: str) -> str:
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# Get the final path of `path2` that isn't in `path1`.
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if not isbase(path1, path2):
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raise ValueError(f"path1 must be a prefix of path2: {path1!r} vs {path2!r}")
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return path2[len(path1) :]
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def relpath(path: str) -> str:
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return path.lstrip("/")
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def normpath(path: str) -> str:
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normalized = os.path.normpath(path)
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if _WINDOWS_PLATFORM:
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# os.path.normpath converts backslashes to forward slashes on Windows
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# but we want forward slashes, so we convert them back
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normalized = normalized.replace("\\", "/")
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return normalized
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