1 files changed, 23 insertions, 0 deletions
diff --git a/lib/gitlab/danger/title_linting.rb b/lib/gitlab/danger/title_linting.rb
new file mode 100644
index 00000000000..db1ccaaf9a9
--- /dev/null
+++ b/lib/gitlab/danger/title_linting.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Danger
+    module TitleLinting
+      DRAFT_REGEX = /\A*#{Regexp.union(/(?i)(\[WIP\]\s*|WIP:\s*|WIP$)/, /(?i)(\[draft\]|\(draft\)|draft:|draft\s\-\s|draft$)/)}+\s*/i.freeze
+
+      module_function
+
+      def sanitize_mr_title(title)
+        remove_draft_flag(title).gsub(/`/, '\\\`')
+      end
+
+      def remove_draft_flag(title)
+        title.gsub(DRAFT_REGEX, '')
+      end
+
+      def has_draft_flag?(title)
+        DRAFT_REGEX.match?(title)
+      end
+    end
+  end
+end