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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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