Return empty Array if no new changes are found between revsrd-fix-raw-changes-between-method

1 files changed, 9 insertions, 0 deletions

diff --git a/ruby/lib/gitlab/git/repository.rb b/ruby/lib/gitlab/git/repository.rb
index a8fc54b29..5d4af93f5 100644
--- a/ruby/lib/gitlab/git/repository.rb
+++ b/ruby/lib/gitlab/git/repository.rb
@@ -212,6 +212,7 @@ module Gitlab
         @raw_changes_between[[old_rev, new_rev]] ||=
           begin
             return [] if new_rev.blank? || new_rev == Gitlab::Git::BLANK_SHA
+            return [] unless new_changes_in_rev?(new_rev)
 
             result = []
 
@@ -231,6 +232,14 @@ module Gitlab
         raise Gitlab::Git::Repository::GitError.new(e)
       end
 
+      def new_changes_in_rev?(rev)
+        revs = run_git!(%W[rev-list #{rev} --not --all --objects --max-count=1]).strip
+
+        File.open('/Users/ruben/projects/gdk-ee/gitlab/log.txt', 'w') { |f| f.puts "OUT: #{revs.class}. #{revs.inspect}" }
+
+        revs.present?
+      end
+
       def add_tag(tag_name, user:, target:, message: nil)
         target_object = Ref.dereference_object(lookup(target))
         raise InvalidRef.new("target not found: #{target}") unless target_object