结帐scm可以选择提供这样的参数，并且有一个安静的操作模式

Checkout scm has option to provide arguments like this and there is a quietoperation mode availabe

checkout([$class: 'SubversionSCM', 
        additionalCredentials: [], 
       locations: [[cancelProcessOnExternalsFail: true, 
        credentialsId: '234243-45654-234randomstuff', 
        depthOption: 'infinity', 
        ignoreExternalsOption: true, 
        local: '.', 
        remote: 'https://starkindustries/ironman/superGlueForThanosFingers/repo']],
        **quietOperation: true,** 
        workspaceUpdater: [$class: 'UpdateUpdater']])

您也可以尝试

checkout scm &> /dev/null

除非git命令失败，否则这将禁止stdout和stderr

This will suppress stdout and stderr, unless the git command fails

或

如果您想使用git结帐

If you want to checkout using git

git checkout origin master --quiet
git checkout origin master --q

哪些是git中可用的选项.

Which is an available option in git.

希望它会有所帮助:)