From d4b46936633a3b2a0248b4572b4a1dc7b2ba8531 Mon Sep 17 00:00:00 2001 From: Shinya Maeda Date: Wed, 22 May 2019 18:45:27 +0700 Subject: Abstract auto merge processes We have one auto merge strategy today - Merge When Pipeline Succeeds. In order to add more strategies for Merge Train feature, we abstract the architecture to be more extensible. Removed arguments Fix spec --- app/services/auto_merge_service.rb | 50 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 app/services/auto_merge_service.rb (limited to 'app/services/auto_merge_service.rb') diff --git a/app/services/auto_merge_service.rb b/app/services/auto_merge_service.rb new file mode 100644 index 00000000000..a3a780ff388 --- /dev/null +++ b/app/services/auto_merge_service.rb @@ -0,0 +1,50 @@ +# frozen_string_literal: true + +class AutoMergeService < BaseService + STRATEGY_MERGE_WHEN_PIPELINE_SUCCEEDS = 'merge_when_pipeline_succeeds'.freeze + STRATEGIES = [STRATEGY_MERGE_WHEN_PIPELINE_SUCCEEDS].freeze + + class << self + def all_strategies + STRATEGIES + end + + def get_service_class(strategy) + return unless all_strategies.include?(strategy) + + "::AutoMerge::#{strategy.camelize}Service".constantize + end + end + + def execute(merge_request, strategy) + service = get_service_instance(strategy) + + return :failed unless service&.available_for?(merge_request) + + service.execute(merge_request) + end + + def process(merge_request) + return unless merge_request.auto_merge_enabled? + + get_service_instance(merge_request.auto_merge_strategy).process(merge_request) + end + + def cancel(merge_request) + return error("Can't cancel the automatic merge", 406) unless merge_request.auto_merge_enabled? + + get_service_instance(merge_request.auto_merge_strategy).cancel(merge_request) + end + + def available_strategies(merge_request) + self.class.all_strategies.select do |strategy| + get_service_instance(strategy).available_for?(merge_request) + end + end + + private + + def get_service_instance(strategy) + self.class.get_service_class(strategy)&.new(project, current_user, params) + end +end -- cgit v1.2.1