#!/bin/sh
version_file=/etc/niveum/version
niveum_dir="$HOME/prog/git/niveum"

machine_status () {
  hostname="$1"

  if commit_id="$(ssh "$hostname" cat $version_file 2>/dev/null)"; then
    machine_status="$(git -C "$niveum_dir" log -1 --oneline "$commit_id")"
  else
    machine_status=offline
  fi

  printf "\033[1m%11s\033[0m %s\n" "$hostname" "$machine_status"
}

for system in "$niveum_dir"/systems/*; do
  hostname="$(basename "$system")"
  machine_status "$hostname"
done