GitCommands.GitCommands.StageFiles C# (CSharp) Method

        public static string StageFiles(IList<GitItemStatus> files)
        {
            var gitCommand = new GitCommands();

            var output = "";

            Process process1 = null;
            foreach (var file in files)
            {
                if (file.IsDeleted)
                    continue;
                if (process1 == null)
                    process1 = gitCommand.CmdStartProcess(Settings.GitCommand, "update-index --add --stdin");

                process1.StandardInput.WriteLine("\"" + FixPath(file.Name) + "\"");
            }
            if (process1 != null)
            {
                process1.StandardInput.Close();
                process1.WaitForExit();

                if (gitCommand.Output != null)
                    output = gitCommand.Output.ToString().Trim();
            }

            Process process2 = null;
            foreach (var file in files)
            {
                if (!file.IsDeleted)
                    continue;
                if (process2 == null)
                    process2 = gitCommand.CmdStartProcess(Settings.GitCommand, "update-index --remove --stdin");
                process2.StandardInput.WriteLine("\"" + FixPath(file.Name) + "\"");
            }
            if (process2 != null)
            {
                process2.StandardInput.Close();
                process2.WaitForExit();

                if (gitCommand.Output != null)
                {
                    if (!string.IsNullOrEmpty(output))
                    {
                        output += Environment.NewLine;
                    }
                    output += gitCommand.Output.ToString().Trim();
                }
            }

            return output;
        }