Retrieve commit signatures with Gitaly

1 files changed, 17 insertions, 0 deletions

diff --git a/lib/gitlab/gitaly_client/commit_service.rb b/lib/gitlab/gitaly_client/commit_service.rb
index 71b212023d6..2231371cfa7 100644
--- a/lib/gitlab/gitaly_client/commit_service.rb
+++ b/lib/gitlab/gitaly_client/commit_service.rb
@@ -282,6 +282,23 @@ module Gitlab
         end
       end
 
+      def extract_signature(commit_id)
+        request = Gitaly::ExtractCommitSignatureRequest.new(repository: @gitaly_repo, commit_id: commit_id)
+        response = GitalyClient.call(@repository.storage, :commit_service, :extract_commit_signature, request)
+
+        signature = ''.b
+        signed_text = ''.b
+
+        response.each do |message|
+          signature << message.signature
+          signed_text << message.signed_text
+        end
+
+        return if signature.blank? && signed_text.blank?
+
+        [signature, signed_text]
+      end
+
       private
 
       def call_commit_diff(request_params, options = {})