def _copy_file(source_path: Path, target_path: Path, overwrite: str,
copy_permissions: bool, callback: Optional[CopyCallback],
already_written: int, size: int) -> int:
"""Copy a file.
Returns the number of bytes written.
"""
target_path_exists = target_path.exists() or target_path.is_symlink()
if not target_path_exists or overwrite == 'always':
logger.debug('Copying file from %s to %s', source_path, target_path)
if not target_path.is_symlink() and target_path.is_dir():
target_path.rmdir(recursive=True)
elif target_path.exists():
target_path.unlink()
target_path.touch()
perms = dict()
for permission in Permission:
perms[permission] = target_path.has_permission(permission)
try:
target_path.chmod(0o600)
except UnsupportedOperationError:
pass
target_path.streaming_write(
_call_back(
callback, perf_counter() + 1.0, already_written, size,
source_path.streaming_read()))
already_written += source_path.size()
try:
for permission in Permission:
if copy_permissions:
target_path.set_permission(
permission, source_path.has_permission(permission))
else:
target_path.set_permission(
permission,
perms[permission]
and source_path.has_permission(permission))
except UnsupportedOperationError:
pass
elif overwrite == 'raise':
raise FileExistsError('Target path exists, not overwriting')
return already_written
def _copy_dir(source_path: Path, target_path: Path, overwrite: str,
copy_permissions: bool, context: Optional[Path],
callback: Optional[CopyCallback], already_written: int, size: int
) -> int:
"""Copy a directory recursively.
"""
target_path_exists = target_path.exists() or target_path.is_symlink()
if target_path_exists:
if overwrite == 'always':
if not target_path.is_dir():
target_path.unlink()
elif overwrite == 'raise':
raise FileExistsError('Target path exists, not overwriting')
elif overwrite == 'never':
return already_written
if not target_path.exists():
logging.debug('Making new dir {}'.format(target_path))
target_path.mkdir()
perms = dict()
for permission in Permission:
perms[permission] = target_path.has_permission(permission)
try:
target_path.chmod(0o700)
except UnsupportedOperationError:
pass
for entry in source_path.iterdir():
logging.debug('Recursively copying entry {}'.format(entry))
already_written = _copy(entry, target_path / entry.name, overwrite,
copy_permissions, context, callback,
already_written, size)
try:
for permission in Permission:
if copy_permissions:
target_path.set_permission(
permission, source_path.has_permission(permission))
else:
target_path.set_permission(
permission,
perms[permission]
and source_path.has_permission(permission))
except UnsupportedOperationError:
pass
return already_written