title: How create a choice parameter with list of filename get from git
body: <p>I tried to create in a Jenkins job a choice parameter with the names of file get from a git repository but I did'nt succeed. I used extensible choice plugin and create a groovy script but it didn't work. So, I am utterly unable to proceed forward. So I wonder if it is possible and if someone else can help me to find a solution.</p>
  
  <p>Regards,</p>
  
  <p>Nabil</p>
  
  <p>PS : Sorry if I have made mistakes, English is note my nat_ive langage</p>