#! /bin/sh
# sender-incremental - send backup to ssh for remote sshbkp-receiver
# Copyright (C) 2001 Berend de Boer
#

# -------------- put your email address here
backuplackey=berend@pobox.com
me=sender-incremental
host=`hostname | sed 's/\..*//'`
# -------------- replace "meili" with the hostname of the machine
#                where sshbkp-receiver will run.
rhost=bmach
key=/root/.ssh/sender

# level
level=1
previouslevel=`expr $level - 1`

# ---------- print a mail header to make it easy to mail this
#            script's output with
#            "sender-full | /usr/lib/sendmail -t"
#
cat <<EOF
To: $backuplackey
Subject: $host $me

EOF

# ----------- save a copy of the standard output in file descriptor six
exec 6>&1

echo ' ------------' $0
echo ' ------------ starting backup on' `date`
echo ' ------------ storage host:' $rhost


# backup of other file systems with cpio
# use a 5120 blocksize
# use SRV4 portable format

# ----------------- these lines are from df -k output for convenience,
#                   and the a b c d variables are dummies.
#
while read dev a b c d mountpt; do
  echo ' ------------ backing up device:' $dev   mount point: $mountpt
  # ------- name this backup after the mount point,
  #         turning slashes to underscores, and removing the initial
  #         slash.
  #
  fs=`echo $mountpt | sed -e 's/^\///' -e 's/\//_/g'`
  if [ "$fs" = "" ]; then
    fs=root
  fi
  title=${host}dump-$fs
  touchfile=$mountpt/DO_NOT_REMOVE.level.$level.cpio.touchfile
  previoustouchfile=$mountpt/DO_NOT_REMOVE.level.$previouslevel.cpio.touchfile
  touch $touchfile
  # ----------- send readable output to file descriptor six, where we
  #             copied the standard output, since we're piping the dump
  #             to ssh on standard output
  #
  (echo $title; find $mountpt -depth -path '*/.opera/cache4' -prune -or -path '*/core.*' -prune -or -path '*/.mozilla/*/Cache' -prune -or -path 'pub/' -prune -or -path 'mp3/' -prune -or -newer $previoustouchfile -print  | /bin/cpio -B --create --reset-access-time -c) 2>&6 \
    | dd ibs=32k obs=32k \
    | ssh -T -i $key $rhost || {
    echo $me: Error: cpio $dev failed with $? 1>&2
    exit 1
  }
  # ---------- for convenience, we feed the loop with a "here document"
  #            that contains lines from the output of "df -k"
  #
done << EOF
/dev/hda8              5112364   4908328    204036  97% /u3
/dev/hda9              4073212   3486372    586840  86% /u2
/dev/hda12              4073212   3486372    586840  86% /u2
EOF


# backup of dumpable file systems

# ----------------- these lines are from df -k output for convenience,
#                   and the a b c d variables are dummies.
#
while read dev a b c d mountpt; do
  echo ' ------------ backing up device:' $dev   mount point: $mountpt
  # ------- name this backup after the mount point,
  #         turning slashes to underscores, and removing the initial
  #         slash.
  #
  fs=`echo $mountpt | sed -e 's/^\///' -e 's/\//_/g'`
  if [ "$fs" = "" ]; then
    fs=root
  fi
  title=${host}dump-$fs
  # ----------- send readable output to file descriptor six, where we
  #             copied the standard output, since we're piping the dump
  #             to ssh on standard output
  #
  (echo $title; /sbin/dump -$level -u -q -f - $dev) 2>&6 \
    | dd ibs=32k obs=32k \
    | ssh -T -i $key $rhost || {
    echo $me: Error: dump $dev failed with $? 1>&2
    exit 1
  }
  # ---------- for convenience, we feed the loop with a "here document"
  #            that contains lines from the output of "df -k"
  #
done << EOF
/dev/hda5                14607      7978      5875  58% /boot
/dev/hda6              4033040   3324428    503740  87% /
EOF

#/dev/hda6              4033040   3324428    503740  87% /


echo ' ------------ finishing backup on ' `date`