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# Copyright (c) Facebook, Inc. and its affiliates.
from iopath.common.file_io import HTTPURLHandler, OneDrivePathHandler, PathHandler
from iopath.common.file_io import PathManager as PathManagerBase
__all__ = ["PathManager", "PathHandler"]
PathManager = PathManagerBase()
"""
This is a detectron2 project-specific PathManager.
We try to stay away from global PathManager in fvcore as it
introduces potential conflicts among other libraries.
"""
class Detectron2Handler(PathHandler):
"""
Resolve anything that's hosted under detectron2's namespace.
"""
PREFIX = "detectron2://"
S3_DETECTRON2_PREFIX = "https://dl.fbaipublicfiles.com/detectron2/"
def _get_supported_prefixes(self):
return [self.PREFIX]
def _get_local_path(self, path, **kwargs):
name = path[len(self.PREFIX) :]
return PathManager.get_local_path(self.S3_DETECTRON2_PREFIX + name, **kwargs)
def _open(self, path, mode="r", **kwargs):
return PathManager.open(self._get_local_path(path), mode, **kwargs)
PathManager.register_handler(HTTPURLHandler())
PathManager.register_handler(OneDrivePathHandler())
PathManager.register_handler(Detectron2Handler())
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