1 files changed, 37 insertions, 0 deletions
diff --git a/lib/gitlab/kubernetes/helm/parsers/list_v2.rb b/lib/gitlab/kubernetes/helm/parsers/list_v2.rb
new file mode 100644
index 00000000000..c5c5d198a6c
--- /dev/null
+++ b/lib/gitlab/kubernetes/helm/parsers/list_v2.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Kubernetes
+    module Helm
+      module Parsers
+        # Parses Helm v2 list (JSON) output
+        class ListV2
+          ParserError = Class.new(StandardError)
+
+          attr_reader :contents, :json
+
+          def initialize(contents)
+            @contents = contents
+            @json = Gitlab::Json.parse(contents)
+          rescue JSON::ParserError => e
+            raise ParserError, e.message
+          end
+
+          def releases
+            @releases = helm_releases
+          end
+
+          private
+
+          def helm_releases
+            helm_releases = json['Releases'] || []
+
+            raise ParserError, 'Invalid format for Releases' unless helm_releases.all? { |item| item.is_a?(Hash) }
+
+            helm_releases
+          end
+        end
+      end
+    end
+  end
+end