phase1/expire.sh

   1 #!/bin/bash
   2
   3 max_lifetime="$1"
   4
   5 tree_birth="$(date --reference=tree.timestamp +%s 2>/dev/null)"
   6 tree_age="$(( $(date +%s) - ${tree_birth:-0} ))"
   7
   8 if [ $max_lifetime -le 0 ]; then
   9         echo "No tree expiry set."
  10
  11 elif [ $tree_age -ge $max_lifetime ]; then
  12         echo "The build tree reached its maximum lifetime, cleaning up."
  13         find . -mindepth 1 -maxdepth 1 -print0 | xargs -r -0 rm -vrf | while read entry; do
  14                 printf "."
  15         done
  16
  17         mkdir build
  18
  19         echo ""
  20         echo "Writing new timestamp"
  21         date +%s > tree.timestamp
  22
  23 else
  24         echo "The build tree is not expired."
  25 fi
  26
  27 exit 0