how to access Jenkins environment variables with DSL?

Question

As the question says. I can't access it.

Tries:

#1:

def env = System.getenv()
def BUILD_NUMBER= env["BUILD_NUMBER"]

Result:

Null when I access BUILD_NUMBER

#2:

def BUILD_NUMBER= params["BUILD_NUMBER"]

Result:

Null when I access BUILD_NUMBER This solution however works for environment variables I create

Answer 1

This will work with recent versions of Jenkins and DSL plugin:

def BUILD_NUMBER = getBinding().getVariables()['BUILD_NUMBER']

Answer 2

Jenkins ver. 2.138.2

def gitUrl = binding.variables.get("GITLAB_URL")