chia-blockchain/chia/util/path.py
2021-04-04 21:41:39 -07:00

36 lines
867 B
Python

import os
from pathlib import Path
from typing import Union
def path_from_root(root: Path, path_str: Union[str, Path]) -> Path:
"""
If path is relative, prepend root
If path is absolute, return it directly.
"""
root = Path(os.path.expanduser(str(root)))
path = Path(path_str)
if not path.is_absolute():
path = root / path
return path.resolve()
def mkdir(path_str: Union[str, Path]) -> None:
"""
Create the existing directory (and its parents) if necessary.
"""
path = Path(path_str)
path.mkdir(parents=True, exist_ok=True)
def make_path_relative(path_str: Union[str, Path], root: Path) -> Path:
"""
Try to make the given path relative, given the default root.
"""
path = Path(path_str)
try:
path = path.relative_to(root)
except ValueError:
pass
return path