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e77a9fe43a
Reviewed By: shannonzhu Differential Revision: D34224272 fbshipit-source-id: 52e19886ab3d4fb015a557244660dd4357a35c17
38 lines
1.5 KiB
Python
38 lines
1.5 KiB
Python
# Copyright (c) Meta Platforms, Inc. and affiliates.
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#
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# This source code is licensed under the MIT license found in the
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# LICENSE file in the root directory of this source tree.
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class ArtifactCache(object):
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"""The ArtifactCache is a small abstraction that allows caching
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named things in some external storage mechanism.
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The primary use case is for storing the build products on CI
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systems to accelerate the build"""
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def download_to_file(self, name, dest_file_name) -> bool:
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"""If `name` exists in the cache, download it and place it
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in the specified `dest_file_name` location on the filesystem.
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If a transient issue was encountered a TransientFailure shall
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be raised.
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If `name` doesn't exist in the cache `False` shall be returned.
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If `dest_file_name` was successfully updated `True` shall be
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returned.
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All other conditions shall raise an appropriate exception."""
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return False
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def upload_from_file(self, name, source_file_name) -> None:
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"""Causes `name` to be populated in the cache by uploading
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the contents of `source_file_name` to the storage system.
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If a transient issue was encountered a TransientFailure shall
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be raised.
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If the upload failed for some other reason, an appropriate
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exception shall be raised."""
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pass
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def create_cache() -> None:
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"""This function is monkey patchable to provide an actual
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implementation"""
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return None
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