Invoking sh or bat generically from a Jenkins pipeline script

Question

I'm working on a pipeline script that will execute on both Windows and Linux. For both systems, I need to invoke the same command (for example python -V). I can accomplish this with a helper function:

def genericsh(cmd) {
    if (isUnix()) {
        sh cmd
    }
    else {
        bat cmd
    }
}

Then in my Jenkinsfile:

genericsh 'python -V'

This seems to work okay, however it produces extra isUnix noise in the output log for each command executed.

Is there a better way to invoke a command generically across Windows and Linux in a Jenkins pipeline script? If not is there a mechanism for suppressing the isUnix() step tag in the pipeline log?

Answer 1

You could assign isUnix() to a variable early in your script which would mean that you only see that once, not once per external command.

env.UNIX = isUnix()

then

def genericSh(cmd) {
    if (Boolean.valueOf(env.UNIX)) {
        sh cmd
    }
    else {
        bat cmd
   }
}