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 multiserver_lock {
   8         echo "/tmp/ElidragonV2_Multiserver_lock"
   9 }
  10
  11 function world_screenname {
  12         echo "Elidragon v2 - $1"
  13 }
  14
  15 function multiserver_screenname {
  16         echo "Elidragon v2 - Multiserver"
  17 }
  18
  19 function kill_world {
  20         kill `cat \`world_lock $1\``
  21 }
  22
  23 function kill_multiserver {
  24         kill -2 `cat \`multiserver_lock\``
  25 }
  26
  27 function world_running {
  28         return $([ -f `world_lock $1` ])
  29 }
  30
  31 function multiserver_running {
  32         return $([ -f `multiserver_lock` ])
  33 }
  34
  35 function assert_running {
  36         if ! world_running $1; then
  37                 echo -e "\e[31mWorld $1 is not running\e[0m"
  38                 if [ -z $2 ]; then
  39                         exit 1
  40                 else
  41                         return 1
  42                 fi
  43         fi
  44 }
  45
  46 function assert_not_running {
  47         if world_running $1; then
  48                 echo -e "\e[31mWorld $1 is already running\e[0m"
  49                 if [ -z $2 ]; then
  50                         exit 1
  51                 else
  52                         return 1
  53                 fi
  54         fi
  55 }
  56
  57 function loop_worlds {
  58         WORLDS=`ls worlds`
  59         for WORLD in $WORLDS; do
  60                 $1 $WORLD
  61         done
  62 }
  63
  64 function run_one_or_all {
  65         if [ -z $2 ]; then
  66                 loop_worlds $1
  67                 return 0
  68         else
  69                 $1 $2
  70                 return 1
  71         fi
  72 }
  73
  74 function run_in_screen {
  75         screen -dmS $1 bash -c "
  76                 touch $2
  77                 while [ -f $2; ] do
  78                         bash -c \"
  79                                 echo \\$\\$ > $2
  80                                 exec $3
  81                         \"
  82                 done
  83         "
  84 }
  85
  86 function start_multiserver {
  87         echo -n "Starting Multiserver... "
  88         if multiserver_running; then
  89                 echo -e "\e[31mMultiserver is already running\e[0m"
  90         else
  91                 run_in_screen `multiserver_screenname` `multiserver_lock` "~/go/bin/multiserver"
  92                 echo -e "\e[32mDone\e[0m"
  93         fi
  94 }
  95
  96 function stop_multiserver {
  97         echo -n "Stopping Multiserver... "
  98         if multiserver_running; then
  99                 kill_multiserver
 100                 rm `multiserver_lock`
 101
 102                 echo -e "\e[32mDone\e[0m"
 103         else
 104                 echo -e "\e[31mMultiserver is not running\e[0m"
 105         fi
 106 }
 107
 108 function restart_multiserver {
 109         echo -n "Multiserver..."
 110         if multiserver_running; then
 111                 kill_multiserver
 112
 113                 echo -e "\e[32mDone\e[0m"
 114         else
 115                 echo -e "\e[31mMultiserver is not running\e[0m"
 116         fi
 117 }
 118
 119 function start_world {
 120         echo -n "Starting $1... "
 121         if assert_not_running $1 "true"; then
 122                 run_in_screen `world_screenname $1` `world_lock $1` "minetest --server --terminal --world worlds/$1 --config worlds/$1/minetest.conf --logfile worlds/$1/debug.txt"
 123                 echo -e "\e[32mDone\e[0m"
 124         fi
 125 }
 126
 127 function stop_world {
 128         echo -n "Stopping $1..."
 129         if assert_running $1 "true"; then
 130                 kill_world $1
 131                 rm `world_lock $1`
 132
 133                 echo -e "\e[32mDone\e[0m"
 134         fi
 135 }
 136
 137 function restart_world {
 138         echo -n "Restarting $1..."
 139         if assert_running $1 "true"; then
 140                 kill_world $1
 141
 142                 echo -e "\e[32mDone\e[0m"
 143         fi
 144 }