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. Currently I find no available variable to access these two parameters.

node {
    git git+ssh://git.com/myproject.git
    echo "$GIT_COMMIT - $BRANCH_NAME"
}

Is such variables available and in case, where would I find them. I don't mind if they are available through some groovy variables or wherever, just that I can access them.

Maybe I lack the debugging skills in Groovy and this is easy to find, but I just can't find it with my limited skills.

question from:https://stackoverflow.com/questions/35554983/git-variables-in-jenkins-workflow-plugin

Answer 1

Depending on the SCM plugin you are using, the checkout step may return additional information about the revision. This was resolved in JENKINS-26100. It was released in the 2.6 version of the workflow-scm-step plugin.

For example, using the Git plugin, you can do something like:

final scmVars = checkout(scm)
echo "scmVars: ${scmVars}"
echo "scmVars.GIT_COMMIT: ${scmVars.GIT_COMMIT}"
echo "scmVars.GIT_BRANCH: ${scmVars.GIT_BRANCH}"

This will vary depending on the plugin you use, so the original answer may work better for you.

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Original Answer

With the 2.4 release of the Pipeline Nodes and Processes Plugin, you can simply do:

def gitCommit = sh(returnStdout: true, script: 'git rev-parse HEAD').trim()