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from __future__ import annotations
import logging
import os
import shutil
import sys
from stat import S_IWUSR
LOGGER = logging.getLogger(__name__)
def ensure_dir(path):
if not path.exists():
LOGGER.debug("create folder %s", str(path))
os.makedirs(str(path))
def ensure_safe_to_do(src, dest):
if src == dest:
msg = f"source and destination is the same {src}"
raise ValueError(msg)
if not dest.exists():
return
if dest.is_dir() and not dest.is_symlink():
LOGGER.debug("remove directory %s", dest)
safe_delete(dest)
else:
LOGGER.debug("remove file %s", dest)
dest.unlink()
def symlink(src, dest):
ensure_safe_to_do(src, dest)
LOGGER.debug("symlink %s", _Debug(src, dest))
dest.symlink_to(src, target_is_directory=src.is_dir())
def copy(src, dest):
ensure_safe_to_do(src, dest)
is_dir = src.is_dir()
method = copytree if is_dir else shutil.copy
LOGGER.debug("copy %s", _Debug(src, dest))
method(str(src), str(dest))
def copytree(src, dest):
for root, _, files in os.walk(src):
dest_dir = os.path.join(dest, os.path.relpath(root, src))
if not os.path.isdir(dest_dir):
os.makedirs(dest_dir)
for name in files:
src_f = os.path.join(root, name)
dest_f = os.path.join(dest_dir, name)
shutil.copy(src_f, dest_f)
def safe_delete(dest):
def onerror(func, path, exc_info): # noqa: ARG001
if not os.access(path, os.W_OK):
os.chmod(path, S_IWUSR)
func(path)
else:
raise # noqa: PLE0704
kwargs = {"onexc" if sys.version_info >= (3, 12) else "onerror": onerror}
shutil.rmtree(str(dest), ignore_errors=True, **kwargs)
class _Debug:
def __init__(self, src, dest) -> None:
self.src = src
self.dest = dest
def __str__(self) -> str:
return f"{'directory ' if self.src.is_dir() else ''}{self.src!s} to {self.dest!s}"
__all__ = [
"copy",
"copytree",
"ensure_dir",
"safe_delete",
"symlink",
"symlink",
]