trampoline.shlib

# Allows one to have a multi-line shebang just like in Scala. Just as in Scala, be sure to end the multi-line shebang with a !#.

# example usage: trampoline "${GRADLE_HOME}/bin/gradle" "$@"
function trampoline() {
  local command=("$@")

  umask 077
  tmpdir="$(mktemp -d -t $$.XXXXXXXXXXXXXXXX)"
  trap 'rm -rf -- "${tmpdir}"' INT TERM HUP EXIT

  tmpfile="${tmpdir}/$(basename $0)"
  command=("${command[@]/$0/${tmpfile}}")

  sed -e '1,/^!#$/d' "$0" >"${tmpfile}" && "${command[@]}"
  status=${PIPESTATUS[0]}

  exit ${status}
}