1 files changed, 36 insertions, 0 deletions
diff --git a/lib/gitlab/ci/pipeline/chain/sequence.rb b/lib/gitlab/ci/pipeline/chain/sequence.rb
new file mode 100644
index 00000000000..015f2988327
--- /dev/null
+++ b/lib/gitlab/ci/pipeline/chain/sequence.rb
@@ -0,0 +1,36 @@
+module Gitlab
+  module Ci
+    module Pipeline
+      module Chain
+        class Sequence
+          def initialize(pipeline, command, sequence)
+            @pipeline = pipeline
+            @completed = []
+
+            @sequence = sequence.map do |chain|
+              chain.new(pipeline, command)
+            end
+          end
+
+          def build!
+            @sequence.each do |step|
+              step.perform!
+
+              break if step.break?
+
+              @completed << step
+            end
+
+            @pipeline.tap do
+              yield @pipeline, self if block_given?
+            end
+          end
+
+          def complete?
+            @completed.size == @sequence.size
+          end
+        end
+      end
+    end
+  end
+end