debian-mirror-gitlab/app/services/ci/register_build_service.rb

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2015-09-25 12:07:36 +05:30
module Ci
# This class responsible for assigning
# proper pending build to runner on runner API request
class RegisterBuildService
def execute(current_runner)
builds = Ci::Build.pending.unstarted
builds =
if current_runner.shared?
# don't run projects which have not enables shared runners
builds.includes(:project).where(ci_projects: { shared_runners_enabled: true })
else
# do run projects which are only assigned to this runner
builds.where(project_id: current_runner.projects)
end
builds = builds.order('created_at ASC')
build = builds.find do |build|
(build.tag_list - current_runner.tag_list).empty?
end
if build
# In case when 2 runners try to assign the same build, second runner will be declined
# with StateMachine::InvalidTransition in run! method.
build.with_lock do
build.runner_id = current_runner.id
build.save!
build.run!
end
end
build
rescue StateMachine::InvalidTransition
nil
end
end
end