bin/backup-status

   1 #!/bin/bash
   2 #
   3 # backup-script system for cloning systems using rsync
   4 # Copyright (c)2008-2013 Alexander Barton, alex@barton.de
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 # Please read the file COPYING, README and AUTHORS for more information.
  11 #
  12
  13 NAME=`basename $0`
  14 CONF_D="/etc/backup-script.d"
  15 QUICK=0
  16
  17 export LC_ALL=C
  18
  19 declare -i count=0
  20 declare -i snapshots=0
  21
  22 # Default settings, can be overwritten in backup-script.conf:
  23 default_target=""
  24 default_generations=0
  25
  26 Check_Size() {
  27         # $1: directory
  28         # $2: padding
  29
  30         if [ "$QUICK" = "0" ]; then
  31                 size=`du -sh "$1" | cut -f1`
  32                 echo "$2  - Size:" $size
  33         fi
  34 }
  35
  36 Check_Stamp() {
  37         # $1: stamp file
  38         # $2: padding
  39
  40         if [ -f "$1" ]; then
  41                 last=`stat "$1" | grep "^Modify: " \
  42                   | cut -d':' -f2- | cut -d. -f1`
  43                 [ -n "$last" ] && echo "$2  - Date:" $last
  44                 unset code
  45                 source "$1"
  46                 case "$code" in
  47                   0)    txt=", OK"; ;;
  48                   24)   txt=", WARNING (some files vanished during backup)"; ;;
  49                   *)    txt=", ERROR"
  50                 esac
  51                 [ -n "$code" ] && echo "$2  - Result code: $code$txt"
  52         else
  53                 echo "$2  - No timestamp recorded!? Backup aborted?"
  54         fi
  55 }
  56
  57 if [ "$1" == "-q" ]; then
  58         QUICK=1
  59         shift
  60 fi
  61
  62 case "$1" in
  63     "-"*)
  64         echo "Usage: $NAME [-q] [<system> [<system> [...]]]"
  65         exit 1
  66         ;;
  67 esac
  68
  69 if [ $# -ge 1 ]; then
  70         for s in $@; do
  71                 if [ ! -r "${CONF_D}/$s" ]; then
  72                         echo "$NAME: Can' read \"${CONF_D}/$s\"!"
  73                         exit 1
  74                 fi
  75                 sys="$sys ${CONF_D}/$s"
  76         done
  77 else
  78         sys=${CONF_D}/*
  79 fi
  80
  81 [ -r "${CONF_D}/backup-script.conf" ] && source "${CONF_D}/backup-script.conf"
  82
  83 for f in $sys; do
  84         [ -r "$f" -a -f "$f" ] || continue
  85
  86         fname=`basename $f`
  87         case "$fname" in
  88                 "backup-script.conf"|*.sh)
  89                         continue
  90                         ;;
  91         esac
  92
  93         # Set global defaults
  94         system="$fname"
  95         target="$default_target"
  96         generations="$default_generations"
  97
  98         # Read in system configuration file
  99         source "$f"
 100
 101         # Validate configuration
 102         [ "$system" = "localhost" -o "$system" = "127.0.0.1" ] && local=1
 103
 104         destdir="$target"
 105         target="$target/$fname"
 106
 107         [ -d "$target" ] || continue
 108
 109         # System name
 110         [ "$system" = "$fname" ] && echo "$fname" || echo "$fname [$system]"
 111
 112         # System target directory
 113         echo "- Target: $target"
 114
 115         if [ $generations -gt 0 ]; then
 116                 for s in $target/[0-9]*-[0-9]*; do
 117                         echo "  - Snapshot: $s"
 118                         Check_Size "$s" "  "
 119                         Check_Stamp "$s/.stamp" "  "
 120                         snapshots=$snapshots+1
 121                 done
 122         else
 123                 # Timestamp and result code
 124                 Check_Size "$s"
 125                 Check_Stamp "$target/.stamp"
 126                 snapshots=$snapshots+1
 127         fi
 128
 129         count=$count+1
 130         echo
 131 done
 132
 133 if [ $count -lt 1 ]; then
 134         echo "No backups found!"
 135         exit 1
 136 fi
 137 [ $count -eq 1 ] && sc="" || sc="s"
 138 [ $snapshots -eq 1 ] && ss="" || ss="s"
 139 echo "$count system backup$sc found, $snapshots snapshot$ss."
 140
 141 # -eof-