debian-mirror-gitlab/lib/gitlab/composer/cache.rb

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2021-03-11 19:13:27 +05:30
# frozen_string_literal: true
require 'tempfile'
module Gitlab
module Composer
class Cache
def initialize(project:, name:, last_page_sha: nil)
@project = project
@name = name
@last_page_sha = last_page_sha
end
def execute
Packages::Composer::Metadatum.transaction do # rubocop: disable CodeReuse/ActiveRecord
# make sure we lock these records at the start
locked_package_metadata
if locked_package_metadata.any?
mark_pages_for_delete(shas_to_delete)
create_cache_page!
# assign the newest page SHA to the packages
locked_package_metadata.update_all(version_cache_sha: version_index.sha)
elsif @last_page_sha
mark_pages_for_delete([@last_page_sha])
end
end
end
private
def mark_pages_for_delete(shas)
Packages::Composer::CacheFile
.with_namespace(@project.namespace)
.with_sha(shas)
.update_all(delete_at: 1.day.from_now)
end
def create_cache_page!
Packages::Composer::CacheFile
.safe_find_or_create_by!(namespace_id: @project.namespace_id, file_sha256: version_index.sha) do |cache_file|
cache_file.file = CarrierWaveStringFile.new(version_index.to_json)
end
end
def version_index
@version_index ||= ::Gitlab::Composer::VersionIndex.new(siblings)
end
def siblings
@siblings ||= locked_package_metadata.map(&:package)
end
# find all metadata of the package versions and lock it for update
def locked_package_metadata
@locked_package_metadata ||= Packages::Composer::Metadatum
.for_package(@name, @project.id)
.locked_for_update
end
def shas_to_delete
locked_package_metadata
.map(&:version_cache_sha)
.reject { |sha| sha == version_index.sha }
.compact
end
end
end
end