scripts/common.sh

   1 # common functions used by Elidragon v2 scripts
   2
   3 function world_lock {
   4         echo "/tmp/ElidragonV2_$1_lock"
   5 }
   6
   7 function world_screenname {
   8         echo "Elidragon v2 - $1"
   9 }
  10
  11 function kill_world {
  12         kill `cat \`world_lock $1\``
  13 }
  14
  15 function is_running {
  16         return $(test -f `world_lock $1`)
  17 }
  18
  19 function loop_worlds {
  20         WORLDS=`ls worlds`
  21         for WORLD in $WORLDS; do
  22                 $1 $WORLD
  23         done
  24 }
  25
  26 function assert_running {
  27         if ! is_running $1; then
  28                 echo -e "\e[31mWorld $1 is not running\e[0m"
  29                 if [ -z "$2" ]; then
  30                         exit 1
  31                 else
  32                         return 1
  33                 fi
  34         fi
  35 }
  36
  37 function assert_not_running {
  38         if is_running $1; then
  39                 echo -e "\e[31mWorld $1 is already running\e[0m"
  40                 if [ -z "$2" ]; then
  41                         exit 1
  42                 else
  43                         return 1
  44                 fi
  45         fi
  46 }
  47
  48 function start_world {
  49         echo -n "Starting $1... "
  50         if assert_not_running $1 "true"; then
  51                 LOCK=`world_lock $1`
  52
  53                 screen -dmS `world_screenname $1` bash -c "
  54                         while is_running $1; do
  55                                 bash -c \"
  56                                         echo \\$\\$ > $LOCK
  57                                         exec minetest --server --terminal --world worlds/$1 --config worlds/$1/minetest.conf --logfile worlds/$1/debug.txt
  58                                 \"
  59                         done
  60                         rm $LOCK
  61                 "
  62
  63                 echo -e "\e[32mDone\e[0m"
  64         fi
  65 }
  66
  67 function stop_world {
  68         echo -n "Stopping $1..."
  69         if assert_running $1 "true"; then
  70                 kill_world $1
  71                 rm `world_lock $1`
  72
  73                 echo -e "\e[32mDone\e[0m"
  74         fi
  75 }
  76
  77 function restart_world {
  78         echo -n "Restarting $1..."
  79         if assert_running $1 "true"; then
  80                 kill_world $1
  81
  82                 echo -e "\e[32mDone\e[0m"
  83         fi
  84 }
  85
  86 function run_one_or_all {
  87         if [ -z "$2" ]; then
  88                 loop_worlds $1
  89         else
  90                 $1 $2
  91         fi
  92 }