GitCommands.GitModule.AssumeUnchangedFiles C# (CSharp) Method

        public string AssumeUnchangedFiles(IList<GitItemStatus> files, bool assumeUnchanged, out bool wereErrors)
        {
            var output = "";
            string error = "";
            wereErrors = false;
            var startInfo = CreateGitStartInfo("update-index --" + (assumeUnchanged ? "" : "no-") + "assume-unchanged --stdin");
            var processReader = new Lazy<SynchronizedProcessReader>(() => new SynchronizedProcessReader(Process.Start(startInfo)));

            foreach (var file in files.Where(file => file.IsAssumeUnchanged != assumeUnchanged))
            {
                UpdateIndex(processReader, file.Name);
            }
            if (processReader.IsValueCreated)
            {
                processReader.Value.Process.StandardInput.Close();
                processReader.Value.WaitForExit();
                wereErrors = processReader.Value.Process.ExitCode != 0;
                output = processReader.Value.OutputString(SystemEncoding);
                error = processReader.Value.ErrorString(SystemEncoding);
            }

            return output.Combine(Environment.NewLine, error);
        }