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# frozen_string_literal: true
module MergeRequests
module Mergeability
class DetailedMergeStatusService
include ::Gitlab::Utils::StrongMemoize
def initialize(merge_request:)
@merge_request = merge_request
end
def execute
return :checking if checking?
return :unchecked if unchecked?
if check_results.success?
# If everything else is mergeable, but CI is not, the frontend expects two potential states to be returned
# See discussion: gitlab.com/gitlab-org/gitlab/-/merge_requests/96778#note_1093063523
if check_ci_results.success?
:mergeable
else
ci_check_failure_reason
end
else
check_results.failure_reason
end
end
private
attr_reader :merge_request, :checks, :ci_check
def checking?
merge_request.cannot_be_merged_rechecking? || merge_request.preparing? || merge_request.checking?
end
def unchecked?
merge_request.unchecked?
end
def check_results
strong_memoize(:check_results) do
merge_request.execute_merge_checks(params: { skip_ci_check: true })
end
end
def check_ci_results
strong_memoize(:check_ci_results) do
::MergeRequests::Mergeability::CheckCiStatusService.new(merge_request: merge_request, params: {}).execute
end
end
def ci_check_failure_reason
if merge_request.actual_head_pipeline&.running?
:ci_still_running
else
check_ci_results.payload.fetch(:reason)
end
end
end
end
end
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