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# Worker for updating any project specific caches.
class ProjectCacheWorker
include Sidekiq::Worker
include DedicatedSidekiqQueue
LEASE_TIMEOUT = 15.minutes.to_i
# project_id - The ID of the project for which to flush the cache.
# files - An Array containing extra types of files to refresh such as
# `:readme` to flush the README and `:changelog` to flush the
# CHANGELOG.
# statistics - An Array containing columns from ProjectStatistics to
# refresh, if empty all columns will be refreshed
def perform(project_id, files = [], statistics = [])
project = Project.find_by(id: project_id)
return unless project && project.repository.exists?
update_statistics(project, statistics.map(&:to_sym))
project.repository.refresh_method_caches(files.map(&:to_sym))
end
def update_statistics(project, statistics = [])
return unless try_obtain_lease_for(project.id, :update_statistics)
Rails.logger.info("Updating statistics for project #{project.id}")
project.statistics.refresh!(only: statistics)
end
private
def try_obtain_lease_for(project_id, section)
Gitlab::ExclusiveLease.
new("project_cache_worker:#{project_id}:#{section}", timeout: LEASE_TIMEOUT).
try_obtain
end
end