bin/backup-status

   1 #!/bin/bash
   2 #
   3 # backup-script system for cloning systems using rsync
   4 # Copyright (c)2008-2015 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 $0`
  14 QUICK=0
  15
  16 export LC_ALL=C
  17
  18 declare -i count=0
  19 declare -i snapshots=0
  20
  21 # Default settings, can be overwritten in backup-script.conf:
  22 conf_d="/etc/backup-script.d"
  23 default_target=""
  24 default_generations=0
  25
  26 for conf in "/etc/backup-script.conf" "${conf_d}/backup-script.conf"; do
  27         if [ -r "$conf" ]; then
  28                 source "$conf"
  29         fi
  30 done
  31
  32 Check_Size() {
  33         # $1: directory
  34         # $2: padding
  35
  36         if [ "$QUICK" = "0" ]; then
  37                 size=`du -Hhs "$1" | cut -f1`
  38                 echo "$2  - Size:" $size
  39         fi
  40 }
  41
  42 Check_Stamp() {
  43         # $1: stamp file
  44         # $2: padding
  45
  46         if [ -f "$1" ]; then
  47                 if [ `uname` = "Linux" ]; then
  48                         last=`LC_ALL=C stat "$1" | grep "^Modify: " \
  49                          | cut -d':' -f2- | cut -d. -f1`
  50                 else
  51                         last=`LC_ALL=C stat -f "%Sc" "$1"`
  52                 fi
  53                 [ -n "$last" ] && echo "$2  - Date:" $last
  54                 unset code
  55                 source "$1"
  56                 case "$code" in
  57                   0)    txt=", OK"; ;;
  58                   24)   txt=", WARNING (some files vanished during backup)"; ;;
  59                   *)    txt=", ERROR"
  60                 esac
  61                 [ -n "$code" ] && echo "$2  - Result code: $code$txt"
  62         else
  63                 echo "$2  - No timestamp recorded! Backup currently running or aborted?"
  64         fi
  65 }
  66
  67 if [ "$1" == "-q" ]; then
  68         QUICK=1
  69         shift
  70 fi
  71
  72 case "$1" in
  73     "-"*)
  74         echo "Usage: $NAME [-q] [<system> [<system> [...]]]"
  75         exit 1
  76         ;;
  77 esac
  78
  79 if [ $# -ge 1 ]; then
  80         for s in $@; do
  81                 if [ ! -r "${conf_d}/$s" ]; then
  82                         echo "$NAME: Can' read \"${conf_d}/$s\"!"
  83                         exit 1
  84                 fi
  85                 sys="$sys ${conf_d}/$s"
  86         done
  87 else
  88         sys=${conf_d}/*
  89 fi
  90
  91 [ -r "${conf_d}/backup-script.conf" ] && source "${conf_d}/backup-script.conf"
  92
  93 for f in $sys; do
  94         [ -r "$f" -a -f "$f" ] || continue
  95
  96         fname=`basename $f`
  97         case "$fname" in
  98                 "backup-script.conf"|*.sh)
  99                         continue
 100                         ;;
 101         esac
 102
 103         # Set global defaults
 104         system="$fname"
 105         target="$default_target"
 106         generations="$default_generations"
 107
 108         # Read in system configuration file
 109         source "$f"
 110
 111         # Validate configuration
 112         [ "$system" = "localhost" -o "$system" = "127.0.0.1" ] && local=1
 113
 114         destdir="$target"
 115         target="$target/$system"
 116
 117         [ -d "$target" ] || continue
 118
 119         # System name
 120         [ "$system" = "$fname" ] && echo "$fname" || echo "$fname [$system]"
 121
 122         # System target directory
 123         echo "- Target: $target"
 124
 125         if [ $generations -gt 0 ]; then
 126                 for s in $target/current $target/[0-9]*-[0-9]*; do
 127                         [ -e "$s" ] || continue
 128                         echo "  - Snapshot: $s"
 129                         Check_Size "$s" "  "
 130                         Check_Stamp "$s/.stamp" "  "
 131                         snapshots=$snapshots+1
 132                 done
 133         else
 134                 # Timestamp and result code
 135                 Check_Size "$target"
 136                 Check_Stamp "$target/.stamp"
 137                 snapshots=$snapshots+1
 138         fi
 139
 140         count=$count+1
 141         echo
 142 done
 143
 144 if [ $count -lt 1 ]; then
 145         echo "No backups found!"
 146         exit 1
 147 fi
 148 [ $count -eq 1 ] && sc="" || sc="s"
 149 [ $snapshots -eq 1 ] && ss="" || ss="s"
 150 echo "$count system backup$sc found, $snapshots snapshot$ss."
 151
 152 # -eof-