bin/process-triggers

   1 #!/bin/bash
   2 # vim:set et ts=4 sw=4:
   3
   4 LOCKFILE=/org/wanna-build/triggers/lock
   5
   6 set -eE
   7
   8 cleanup() {
   9     rm -rf "$LOCKFILE"
  10 }
  11
  12 if ! lockfile -0 -r0 "$LOCKFILE" 2>/dev/null
  13 then
  14     # Process already running.
  15     exit 0
  16 fi
  17
  18 # Got the lock.
  19 trap cleanup ERR TERM HUP INT QUIT EXIT
  20
  21 # Do at least one run.
  22 work=1
  23 while [ $work -eq 1 ]
  24 do
  25     # No further runs unless at least one signal is found.
  26     work=0
  27     find /org/wanna-build/signals -type f | while read signal_file
  28     do
  29         # Process it.
  30         work=1
  31         signal=$(basename $signal_file)
  32         /org/wanna-build/triggers/trigger.${signal/.?*} ${signal/?*./}
  33         rm $signal_file
  34     done
  35 done
  36
  37 exit 0
  38