bin/loadcron

   1 #!/bin/sh
   2 # Construct a crontab based on files in ~/.cron and load it into cron.
   3 # The file ~/.cron/username/fqdn is appended to the common file in the same
   4 # directory. Note that the common file may have "$HOME" in it, as in
   5 # "PATH=$HOME/bin". cron is too dumb to deal with that, so the expansion is
   6 # handled by this script.
   7 set -e
   8
   9 which crontab >/dev/null 2>&1 || exit 0
  10
  11 WARNING="# Automatically generated by loadcron; edit ~/.cron/ files instead."
  12
  13 if [ ! -z "`crontab -l`" ] && ! crontab -l | grep -q "$WARNING"; then
  14         if [ "$1" != "-f" ]; then
  15                 echo "loadcron: Current crontab was not generated by loadcron; not changing." >&2
  16                 echo "loadcron: Use loadcron -f to override"
  17                 exit 1
  18         else
  19                 crontab -l > $HOME/tmp/oldcrontab
  20                 echo "loadcron: Old crontab is backed up to $HOME/tmp/oldcrontab"
  21         fi
  22 fi
  23
  24 dir=$HOME/.cron-stage/`whoami`
  25 if [ -d "$dir" ]; then
  26         hostfile="$dir/`hostname -f`"
  27 #       if [ ! -e "$hostfile" ]; then
  28 #               echo "loadcron: $hostfile does not exist, not loading" >&2
  29 #       fi
  30
  31         (
  32                 echo "$WARNING"
  33                 echo
  34                 if [ -e "$dir/common" ]; then
  35                         echo "# From $dir/common:"
  36                         sed "s!\$HOME!$HOME!" < "$dir/common"
  37                         echo
  38                 fi
  39                 hostfile="$dir/`hostname -f`"
  40                 if [ -e "$hostfile" ]; then
  41                         echo "# From $hostfile:"
  42                         cat "$hostfile"
  43                         echo
  44                 fi
  45                 # debian-edu crontab
  46                 debianedufile=/org/alioth.debian.org/chroot/home/groups/debian-edu/cronjobs/crontab.alioth
  47                 if [ "$(hostname)" = "haydn" ] && [ -e "$debianedufile" ]; then
  48                         echo "# From $debianedufile:"
  49                         cat "$debianedufile"
  50                         echo
  51                 fi
  52         ) | crontab -
  53 fi
  54