Add inline diff markers in highlighted diffs.

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/gitlab/highlight.rb b/lib/gitlab/highlight.rb
index 02e097eca3d..a5b041687e3 100644
--- a/lib/gitlab/highlight.rb
+++ b/lib/gitlab/highlight.rb
@@ -7,6 +7,13 @@ module Gitlab
       formatter.format(lexer.lex(blob_content, continue: continue)).html_safe
     end
 
+    def self.highlight_lines(repository, ref, file_name)
+      blob = repository.blob_at(ref, file_name)
+      return [] unless blob
+
+      highlight(file_name, blob.data).lines.map!(&:html_safe)
+    end
+
     private
 
     def self.rouge_formatter(options = {})