1 files changed, 38 insertions, 0 deletions
diff --git a/lib/banzai/reference_parser/commit_range_parser.rb b/lib/banzai/reference_parser/commit_range_parser.rb
new file mode 100644
index 00000000000..69d01f8db15
--- /dev/null
+++ b/lib/banzai/reference_parser/commit_range_parser.rb
@@ -0,0 +1,38 @@
+module Banzai
+  module ReferenceParser
+    class CommitRangeParser < BaseParser
+      self.reference_type = :commit_range
+
+      def referenced_by(nodes)
+        range_ids = commit_range_ids_per_project(nodes)
+        projects = find_projects_for_hash_keys(range_ids)
+
+        projects.flat_map do |project|
+          find_ranges(project, range_ids[project.id])
+        end
+      end
+
+      def commit_range_ids_per_project(nodes)
+        gather_attributes_per_project(nodes, self.class.data_attribute)
+      end
+
+      def find_ranges(project, range_ids)
+        ranges = []
+
+        range_ids.each do |id|
+          range = find_object(project, id)
+
+          ranges << range if range
+        end
+
+        ranges
+      end
+
+      def find_object(project, id)
+        range = CommitRange.new(id, project)
+
+        range.valid_commits? ? range : nil
+      end
+    end
+  end
+end