kopia lustrzana https://github.com/simonw/datasette
103 wiersze
2.9 KiB
Python
103 wiersze
2.9 KiB
Python
"""
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Backported from Python 3.8.
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This code is licensed under the Python License:
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https://github.com/python/cpython/blob/v3.8.3/LICENSE
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"""
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import os
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from shutil import copy, copy2, copystat, Error
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def _copytree(
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entries,
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src,
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dst,
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symlinks,
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ignore,
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copy_function,
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ignore_dangling_symlinks,
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dirs_exist_ok=False,
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):
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if ignore is not None:
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ignored_names = ignore(src, set(os.listdir(src)))
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else:
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ignored_names = set()
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os.makedirs(dst, exist_ok=dirs_exist_ok)
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errors = []
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use_srcentry = copy_function is copy2 or copy_function is copy
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for srcentry in entries:
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if srcentry.name in ignored_names:
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continue
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srcname = os.path.join(src, srcentry.name)
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dstname = os.path.join(dst, srcentry.name)
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srcobj = srcentry if use_srcentry else srcname
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try:
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if srcentry.is_symlink():
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linkto = os.readlink(srcname)
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if symlinks:
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os.symlink(linkto, dstname)
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copystat(srcobj, dstname, follow_symlinks=not symlinks)
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else:
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if not os.path.exists(linkto) and ignore_dangling_symlinks:
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continue
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if srcentry.is_dir():
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copytree(
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srcobj,
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dstname,
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symlinks,
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ignore,
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copy_function,
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dirs_exist_ok=dirs_exist_ok,
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)
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else:
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copy_function(srcobj, dstname)
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elif srcentry.is_dir():
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copytree(
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srcobj,
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dstname,
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symlinks,
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ignore,
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copy_function,
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dirs_exist_ok=dirs_exist_ok,
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)
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else:
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copy_function(srcentry, dstname)
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except Error as err:
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errors.extend(err.args[0])
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except OSError as why:
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errors.append((srcname, dstname, str(why)))
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try:
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copystat(src, dst)
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except OSError as why:
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# Copying file access times may fail on Windows
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if getattr(why, "winerror", None) is None:
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errors.append((src, dst, str(why)))
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if errors:
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raise Error(errors)
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return dst
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def copytree(
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src,
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dst,
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symlinks=False,
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ignore=None,
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copy_function=copy2,
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ignore_dangling_symlinks=False,
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dirs_exist_ok=False,
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):
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with os.scandir(src) as entries:
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return _copytree(
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entries=entries,
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src=src,
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dst=dst,
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symlinks=symlinks,
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ignore=ignore,
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copy_function=copy_function,
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ignore_dangling_symlinks=ignore_dangling_symlinks,
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dirs_exist_ok=dirs_exist_ok,
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)
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