Git post commit hook to change RVM gemset

post-commit.sh

#!/usr/bin/env bash

source "$HOME/.rvm/scripts/rvm"

git_rev() {
  ref=$(git symbolic-ref HEAD 2>/dev/null) || return
  echo ${ref#refs/heads/}
}

ref=$(git_rev)

case $ref in
  master)
    gemset=jobs
    ;;
  dev)
    gemset=jobs31
    ;;
esac

echo "switching to gemset $gemset"
rvm gemset use $gemset