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proxygen/build/fbcode_builder/getdeps/cache.py
Chad Austin 4fb4756ec9 remove legacy __future__ imports
Summary: The future is now.

Reviewed By: xavierd

Differential Revision: D33714537

fbshipit-source-id: 8d282bbe7391c4b72b70dab54a5c252060fba457
2022-01-24 20:23:34 -08:00

38 lines
1.5 KiB
Python

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