#!/bin/sh

# backuppc only has global pruning of backups

# to remove with a finer granularity, we need to do work here
# the nightly cleanup then tidies up the pool
# (NB: this could take $Conf{BackupPCNightlyPeriod} days - see config.pl)

# paranoia - unless you specify "-f", nothing will happen!
DEBUG="echo NOACTION: "
if [ "$1" = "-f" ]; then
 DEBUG=""
fi

backuppc_base=/var/lib/backuppc/pc


die()
{
  echo "$@" >&2
  exit 1
}

# prunes old files
# first argument is which hosts to prune (or '*')
# second argument is files/directories to delete
prune()
{
  if [ "$#" -lt 2 ]; then
    echo "Invalid arguments($@) to prune()" >&2
    return 1
  fi

  days="$1"
  hosts="$2"
  # ensure leading slash but no trailing slash
  glob="/${3#/}"
  glob="${glob%/}"
  glob=`echo "$glob" | sed 's/\//\/f/g; s/^/f%2f/;'`

  cd $backuppc_base || die "Unable to cd \"$backuppc_base\""

  find $hosts -maxdepth 1 -type d -mtime +$days -exec $DEBUG rm -rf {}/$glob \;
}

# logs
prune 10 '*' /var/log/

# osiris
prune 3 '*' /var/lib/osirismd/hosts