1 files changed, 25 insertions, 0 deletions
diff --git a/lib/gitlab/ci/pipeline/chain/helpers.rb b/lib/gitlab/ci/pipeline/chain/helpers.rb
new file mode 100644
index 00000000000..02d81286f21
--- /dev/null
+++ b/lib/gitlab/ci/pipeline/chain/helpers.rb
@@ -0,0 +1,25 @@
+module Gitlab
+  module Ci
+    module Pipeline
+      module Chain
+        module Helpers
+          def branch_exists?
+            return @is_branch if defined?(@is_branch)
+
+            @is_branch = project.repository.branch_exists?(pipeline.ref)
+          end
+
+          def tag_exists?
+            return @is_tag if defined?(@is_tag)
+
+            @is_tag = project.repository.tag_exists?(pipeline.ref)
+          end
+
+          def error(message)
+            pipeline.errors.add(:base, message)
+          end
+        end
+      end
+    end
+  end
+end