How to set Env Var in Jenkins workspace without using plugins

Question

How can I set an environment variable which is only known in the jenkins workspace using a bash script (no plugins)

Answer 1

You can define a variable without using other Plugins by using Groovy . Within your Groovy System Script, you can add following snippet for creating Env parameters:

import hudson.model.*
def build = Thread.currentThread().executable
def myVar = new ParametersAction([
  new StringParameterValue("The_TING", "goes_skraaa!")
])
build.addAction(myVar)

Then you can access this variable in the next build step which (for example) can be a windows batch command:

@echo off
Setlocal EnableDelayedExpansion
echo The_TING=!The_TING!

This echo will show you "goes_skraaa!".