How to receive local Git branch name with Jenkins Git plugin?

@Chris answer helped me. Thank you!

Don't forget to add the "Additional Behavior -> Check out to specific local branch" under "Source Code Management".

Until I did not add that the ${GIT_LOCAL_BRANCH} variable was not availabe when I tried use it. (E.g.: execute shell command 'printenv' then check Console output)

Based on this SO answer: How to do I get the output of a shell command executed using into a variable from Jenkinsfile (groovy)?

I used this, and finally was able to get it to work (the below example assumes a branch variable of $Branch):

stage('Checkout') {
    GIT_BRANCH_LOCAL = sh (
        script: "echo $Branch | sed -e 's|origin/||g'",
        returnStdout: true
    ).trim()
    echo "Git branch: ${GIT_BRANCH_LOCAL}"
    git branch: "${GIT_BRANCH_LOCAL}", credentialsId: '...', url: 'git@github.com:......git'
}

After long time I finally got the solution for my case to get local git name (for SonarQube) without "origin/" in my Jenkins freestyle project (not Jenkinsfile). I am using Windows environment.

In Jenkins:

• At "Source Code Management" section: add "Check out to specific local branch" and at "Branch name" enter: **
• At "Build" section: I used and added "SonarScanner for MSBuild - Begin Analysis", where at "Additional arguments" I added: /d:sonar.branch.name=${GIT_LOCAL_BRANCH}

So only with this combination of ** and ${GIT_LOCAL_BRANCH} it worked for me.

No complex shell commands needed to achieve this, just add the below line :

branchFilter: 'origin.*/(.*)', in gitParameter as shown below

pipeline {
    agent any
    parameters {
        gitParameter branchFilter: 'origin.*/(.*)', defaultValue: 'master', name: 'BRANCH', type: 'PT_BRANCH'
    }