loop-rebuild

   1 #!/bin/sh
   2
   3 ssleep () {
   4         seconds=$1
   5         now=$(date "+%s")
   6         sleep $(( ((now + seconds + seconds / 4) / seconds) * seconds - now))
   7 }
   8
   9 stamp () {
  10         Meta/V 2>/dev/null | sha1sum
  11 }
  12
  13 P=previous
  14 O=observed
  15 while :
  16 do
  17         while O=$(stamp) && test "$P" = "$O"
  18         do
  19                 ssleep 300
  20         done
  21         ssleep 30
  22         time nice -20 Meta/Dothem -j16 --dash; uptime; date
  23         P=$(stamp)
  24         Meta/V
  25 done