gitlab-org--gitlab-foss/lib/gitlab/ci/trace/remote_checksum.rb

75 lines
2 KiB
Ruby

# frozen_string_literal: true
module Gitlab
module Ci
class Trace
##
# RemoteChecksum class is responsible for fetching the MD5 checksum of
# an uploaded build trace.
#
class RemoteChecksum
include Gitlab::Utils::StrongMemoize
def initialize(trace_artifact)
@trace_artifact = trace_artifact
end
def md5_checksum
strong_memoize(:md5_checksum) do
fetch_md5_checksum
end
end
private
attr_reader :trace_artifact
delegate :aws?, :google?, to: :object_store_config, prefix: :provider
def fetch_md5_checksum
return unless Feature.enabled?(:ci_archived_build_trace_checksum, trace_artifact.project, default_enabled: :yaml)
return unless object_store_config.enabled?
return if trace_artifact.local_store?
remote_checksum_value
end
def remote_checksum_value
strong_memoize(:remote_checksum_value) do
if provider_google?
checksum_from_google
elsif provider_aws?
checksum_from_aws
end
end
end
def object_store_config
strong_memoize(:object_store_config) do
trace_artifact.file.class.object_store_config
end
end
def checksum_from_google
content_md5 = upload_attributes.fetch(:content_md5)
Base64
.decode64(content_md5)
.unpack1('H*')
end
def checksum_from_aws
upload_attributes.fetch(:etag)
end
# Carrierwave caches attributes for the local file and does not replace
# them with the ones from object store after the upload completes.
# We need to force it to fetch them directly from the object store.
def upload_attributes
strong_memoize(:upload_attributes) do
::Ci::JobArtifact.find(trace_artifact.id).file.file.attributes
end
end
end
end
end
end