UE 打包（使用ProjectLauncher，但是不修改源码达到自定义打包的效果）

方案一：使用UAT并修改Automation.cs代码
在打印BUILD SUCCESSFUL之后执行自定义的操作

App=D:\UEProject\UE5test\ue5test1\Packer.bat,CommandLine=D:\UEProject\UE5test\ue5test1

这行代码是放在ProjectLauncher->Build->Additional Command Line Parameters

CommandUtils.LogInformation("BUILD SUCCESSFUL");
for (int Index = 0; Index < CommandInfo.Arguments.Count; ++Index)
{
    string app = "";
    string commandLine = "";

    string argument = CommandInfo.Arguments[Index];

    // 提取 App 的值
    if (argument.Contains("App="))
    {
       int startIndex = argument.IndexOf("App=") + 4;
       int endIndex = argument.IndexOf(",", startIndex);
       if (endIndex != -1 && endIndex > startIndex)
       {
          app = argument.Substring(startIndex, endIndex - startIndex);
       }
    }

    // 提取 CommandLine 的值 
    if (argument.Contains("CommandLine="))
    {
       int startIndex = argument.IndexOf("CommandLine=") + 12;
       int endIndex = argument.IndexOf(",", startIndex);
       if (endIndex != -1 && endIndex > startIndex)
       {
          commandLine = argument.Substring(startIndex, endIndex - startIndex);
       }
    }

    CommandUtils.LogInformation("Custom CommandLine: {0},{1}", app, commandLine);
    if (!string.IsNullOrEmpty(app))
    {
       CommandUtils.Run(app, commandLine);
    }
}

方案二：修改RunUAT.bat

rem ## Run AutomationTool
:DoRunUAT
pushd %UATDirectory%
dotnet %UATExecutable% %*
:: 调取自定义的程序
:: call "D:\UEProject\UE5test\ue5test1\Packer.bat"
setlocal EnableDelayedExpansion
set "args=%*"
for /F "tokens=2 delims== " %%a in ("!args!") do (
    set "filePath=%%~dpa"
    echo !filePath!Packer.bat
    call "!filePath!Packer.bat"
)
endlocal
popd
set RUNUAT_ERRORLEVEL=%ERRORLEVEL%

对应批处理文件或exe程序内容可自定义