Git Variables in Jenkins Workflow plugin

Question

I\'d like to access git variables such as GIT_COMMIT and GIT_BRANCH when I have checked out a repository from git further down in the build stream.

Answer 1

Depending on the information you need, there is a very straightforward solution: get the "checkout scm" operation return: it provides GIT_BRANCH, GIT_COMMIT, GIT_PREVIOUS_COMMIT, GIT_PREVIOUS_SUCCESSFUL_COMMIT and GIT_URL.

node { 
    stage ("Checkout") {

        scmInfo = checkout scm

        /*...*/
        echo "scm : ${scmInfo}"
        echo "${scmInfo.GIT_COMMIT}"


    }
}

This will output:

...
[Pipeline] echo
    scm : [GIT_BRANCH:my-branch, GIT_COMMIT:0123456789abcdefabcdef0123456789abcdef01, GIT_PREVIOUS_COMMIT:aaaabbbcccffffdeeeefffe0123456789012345678, GIT_PREVIOUS_SUCCESSFUL_COMMIT:aaaabbbcccffffdeeeefffe0123456789012345678, GIT_URL:http://my.si.te/my-repository.git]
[Pipeline] echo
    0123456789abcdefabcdef0123456789abcdef01
...

More details here Jenkins Pipeline SCM Steps