Jenkins pipeline branch name returns null

Question

I\'m trying to get the name of my branch for a jenkins groovy script. I cannot get the current branch name. I try the following:

stage(\'Check out code\')
ch         


        

Answer 1

I had this same issue, but I resolved it by changing

println "${env.BRANCH_NAME}"

to

println "${BRANCH_NAME}"

Note my plugin is also checking out in detached mode:

git checkout -f e10a170e17fb5f9282f903a7b3cd17bd2e181dee