Jenkins and branch selection in GIT

Now we are migrating to GIT from SVN.

We're very happy with GIT (but a little confused at first).

One problem is selecting in Jenkins a branch.  Jenkins available plugins don't help for this task.  Luckily, I've found this wonderful article that has helped me.  But I've improved a little, and instead of launching a cron job for gathering the available branches, I calculate them on the fly.

I've created a parameter of type Extensible Choice, and added this script in other to feed it:

 def ej(cmd) {   def proc = cmd.execute(null, new File("/home/jenkins/jobs/MyProject/workspace"))   def sb = new StringBuffer()   proc.waitForProcessOutput(sb, sb)   def cod = proc.exitValue()   if (cod != 0)       throw new Exception("Error ${cod} when invoking '${cmd}':\n${sb}")   sb.toString() }  ej("git fetch --all") ej("git remote prune origin")  def re = ~/->/  ej("git branch -r").tokenize("\n").grep({!re.matcher(it).find()}).collect() {   it.replace("origin/", "").trim() } 

Even though, I'm not an expert in Groovy, it works ok.

It's easy to debug thanks to the button Run the Script Now.

Now you can easily select a branch with a combo box!!.