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