Migrate Gitlab::Git::Wiki#file to Gitalyfeature/migrate-find-wiki-file-to-gitaly

Closes gitaly#689

1 files changed, 26 insertions, 0 deletions

diff --git a/lib/gitlab/gitaly_client/wiki_service.rb b/lib/gitlab/gitaly_client/wiki_service.rb
index 5d7930f5ff9..15f0f30d303 100644
--- a/lib/gitlab/gitaly_client/wiki_service.rb
+++ b/lib/gitlab/gitaly_client/wiki_service.rb
@@ -80,6 +80,32 @@ module Gitlab
         [wiki_page, version]
       end
 
+      def find_file(name, revision)
+        request = Gitaly::WikiFindFileRequest.new(
+          repository: @gitaly_repo,
+          name: GitalyClient.encode(name),
+          revision: GitalyClient.encode(revision)
+        )
+
+        response = GitalyClient.call(@repository.storage, :wiki_service, :wiki_find_file, request)
+        wiki_file = nil
+
+        response.each do |message|
+          next unless message.name.present?
+
+          if wiki_file
+            wiki_file.raw_data << message.raw_data
+          else
+            wiki_file = GitalyClient::WikiFile.new(message.to_h)
+            # All gRPC strings in a response are frozen, so we get
+            # an unfrozen version here so appending in the else clause below doesn't blow up.
+            wiki_file.raw_data = wiki_file.raw_data.dup
+          end
+        end
+
+        wiki_file
+      end
+
       private
 
       def gitaly_commit_details(commit_details)