1 files changed, 29 insertions, 0 deletions
diff --git a/app/services/external_pull_requests/create_pipeline_service.rb b/app/services/external_pull_requests/create_pipeline_service.rb
new file mode 100644
index 00000000000..36411465ff1
--- /dev/null
+++ b/app/services/external_pull_requests/create_pipeline_service.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+# This service is responsible for creating a pipeline for a given
+# ExternalPullRequest coming from other providers such as GitHub.
+
+module ExternalPullRequests
+  class CreatePipelineService < BaseService
+    def execute(pull_request)
+      return unless pull_request.open? && pull_request.actual_branch_head?
+
+      create_pipeline_for(pull_request)
+    end
+
+    private
+
+    def create_pipeline_for(pull_request)
+      Ci::CreatePipelineService.new(project, current_user, create_params(pull_request))
+        .execute(:external_pull_request_event, external_pull_request: pull_request)
+    end
+
+    def create_params(pull_request)
+      {
+        ref: pull_request.source_ref,
+        source_sha: pull_request.source_sha,
+        target_sha: pull_request.target_sha
+      }
+    end
+  end
+end