# File lib/grit/git.rb, line 222 def apply_patch(head_sha, patch) git_index = create_tempfile('index', true) options = {:env => {'GIT_INDEX_FILE' => git_index}, :raise => true} begin native(:read_tree, options.dup, head_sha) native(:apply, options.merge(:cached => true, :input => patch)) rescue CommandFailed return false end native(:write_tree, :env => options[:env]).to_s.chomp! end