Jenkins - Git remote brach choice parameter

1. Generate a Jenkins property file for each project's git remote branch list
   
   First of all, There is a recursive scheduled job to generate each project's property files which contains each own git remote repository's branches list and keep that file up to date.
   
   
   1. I made a below script to make a Jenkins property file by using Groovy 
      
      
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      import hudson.model.*     // reference all Jenkins projects for(job in Hudson.instance.items) {  // it will filtering out for only projects which has git SCM (Source Code Management) setting  if(job.scm instanceof hudson.plugins.git.GitSCM ) {  url = job.scm.getRepositories()[0].getURIs()[0].toASCIIString()   Process p = "c:/Progra~2/git/bin/git.exe ls-remote -h $url".execute()    branches = p.text.findAll(/(?m)heads\/(.*?)$/) { match, branch -> return branch }    .findAll { it != "master" }    .sort()      branches.add(0, "master")      def folder = new File(job.workspace.toString(), "properties")  if(!folder.exists()) { folder.mkdirs() } // make a properties folder if it's not existed.      def props_file = new File(folder, "branches.properties")      // create or update a properties file  props_file.withWriter { out ->     out.println "branches=" + branches.toString().replace("[", "").replace("]", "")  }  } }

   2. Implemented above Groovy script into a Job by using groovy build script plugin
      
   3. Setup some recursive schedule in order to update the file to be up to date.
      
2. Setup a extended choice parameter with the properties file.
   just add extended choice parameter with below settings
   Property file : each property file is stored under each job project's workspace directory with below path
   c:/program files (x86)/jenkins/workspace/{project name}/properties/branches.properties