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

Question

I am using Branch Specifier option of Jenkins Git plugin (v2.0) to run build on specific branch, e.g. 1.4.

${GIT_BRANCH} in this case contains origin/1.4 value.

How can I receive a name of the local Git branch used for cloning (i.e. just 1.4 without origin/ prefix?

I've tried Check out to specific local branch Additional Behaviour with branch name 1.4, but nothing had changed.

I've seen related PR on GitHub, but it was declined (as it fixes only one case with just origin remote).

Answer 1

You can strip the prefix from the variable pretty easily: ${GIT_BRANCH##origin/}

Although this is not a very general solution, it's quite simple and I haven't seen a repository cloned by Jenkins, which would use something else than origin for the remote name.

Update: Actually, ${GIT_BRANCH#*/} will work for any origin and even for branches containing slashes. The # does non-greedy glob matching, ## enables greedy matching. See Bash Reference Manual for details.