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# frozen_string_literal: true
module MergeRequests
class ApprovalService < MergeRequests::BaseService
def execute(merge_request)
return unless can_be_approved?(merge_request)
approval = merge_request.approvals.new(user: current_user)
return success unless save_approval(approval)
reset_approvals_cache(merge_request)
merge_request_activity_counter.track_approve_mr_action(user: current_user, merge_request: merge_request)
# Approval side effects (things not required to be done immediately but
# should happen after a successful approval) should be done asynchronously
# utilizing the `Gitlab::EventStore`.
#
# Workers can subscribe to the `MergeRequests::ApprovedEvent`.
if Feature.enabled?(:async_after_approval, project)
Gitlab::EventStore.publish(
MergeRequests::ApprovedEvent.new(
data: { current_user_id: current_user.id, merge_request_id: merge_request.id }
)
)
else
create_event(merge_request)
stream_audit_event(merge_request)
create_approval_note(merge_request)
mark_pending_todos_as_done(merge_request)
execute_approval_hooks(merge_request, current_user)
end
success
end
private
def can_be_approved?(merge_request)
current_user.can?(:approve_merge_request, merge_request)
end
def save_approval(approval)
Approval.safe_ensure_unique do
approval.save
end
end
def reset_approvals_cache(merge_request)
merge_request.approvals.reset
end
def create_event(merge_request)
event_service.approve_mr(merge_request, current_user)
end
def stream_audit_event(merge_request)
# Defined in EE
end
def create_approval_note(merge_request)
SystemNoteService.approve_mr(merge_request, current_user)
end
def mark_pending_todos_as_done(merge_request)
todo_service.resolve_todos_for_target(merge_request, current_user)
end
def execute_approval_hooks(merge_request, current_user)
# Only one approval is required for a merge request to be approved
notification_service.async.approve_mr(merge_request, current_user)
execute_hooks(merge_request, 'approved')
end
end
end
MergeRequests::ApprovalService.prepend_mod_with('MergeRequests::ApprovalService')
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