diff options
Diffstat (limited to 'Lib/pathlib/_abc.py')
| -rw-r--r-- | Lib/pathlib/_abc.py | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/Lib/pathlib/_abc.py b/Lib/pathlib/_abc.py index b5f903e..05f55ba 100644 --- a/Lib/pathlib/_abc.py +++ b/Lib/pathlib/_abc.py @@ -781,7 +781,32 @@ class PathBase(PurePathBase): """ raise UnsupportedOperation(self._unsupported_msg('mkdir()')) - def copy(self, target, follow_symlinks=True): + # Metadata keys supported by this path type. + _readable_metadata = _writable_metadata = frozenset() + + def _read_metadata(self, keys=None, *, follow_symlinks=True): + """ + Returns path metadata as a dict with string keys. + """ + raise UnsupportedOperation(self._unsupported_msg('_read_metadata()')) + + def _write_metadata(self, metadata, *, follow_symlinks=True): + """ + Sets path metadata from the given dict with string keys. + """ + raise UnsupportedOperation(self._unsupported_msg('_write_metadata()')) + + def _copy_metadata(self, target, *, follow_symlinks=True): + """ + Copies metadata (permissions, timestamps, etc) from this path to target. + """ + # Metadata types supported by both source and target. + keys = self._readable_metadata & target._writable_metadata + if keys: + metadata = self._read_metadata(keys, follow_symlinks=follow_symlinks) + target._write_metadata(metadata, follow_symlinks=follow_symlinks) + + def copy(self, target, *, follow_symlinks=True, preserve_metadata=False): """ Copy the contents of this file to the given target. If this file is a symlink and follow_symlinks is false, a symlink will be created at the @@ -793,6 +818,8 @@ class PathBase(PurePathBase): raise OSError(f"{self!r} and {target!r} are the same file") if not follow_symlinks and self.is_symlink(): target.symlink_to(self.readlink()) + if preserve_metadata: + self._copy_metadata(target, follow_symlinks=False) return with self.open('rb') as source_f: try: @@ -805,6 +832,8 @@ class PathBase(PurePathBase): f'Directory does not exist: {target}') from e else: raise + if preserve_metadata: + self._copy_metadata(target) def copytree(self, target, *, follow_symlinks=True, dirs_exist_ok=False, ignore=None, on_error=None): |