3 # backup-script system for cloning systems using rsync
4 # Copyright (c)2008-2016 Alexander Barton, alex@barton.de
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.
14 PIDFILE="/var/run/backup-script.pid"
22 declare -i snapshots=0
24 # Default settings, can be overwritten in backup-script.conf:
25 [ -d "/usr/local/etc/backup-script.d" ] \
26 && conf_d="/usr/local/etc/backup-script.d" \
27 || conf_d="/etc/backup-script.d"
28 default_target="/var/backups"
31 # Search configuration file (last one is used as default!)
33 "/usr/local/etc/backup-script.conf" \
34 "/etc/backup-script.conf" \
35 "${conf_d}/backup-script.conf" \
36 "/usr/local/etc/backup-script.conf" \
38 if [ -r "$conf" ]; then
39 # shellcheck source=/dev/null
46 echo "Usage: $NAME [--errors|--latest] [--quick] [<system> [<system> [...]]]"
47 echo " $NAME --running"
49 echo " --errors, -e Only show current backups with errors (implies \"--latest\")."
50 echo " --latest, -l Only show latest backup generations."
51 echo " --quick, -q Don't calculate backup sizes."
52 echo " --running, -r Check if an \"backup-script\" task is currently running."
61 if [ "$QUICK" = "0" ]; then
62 size=$(du -Hhs "$1" | cut -f1)
63 # shellcheck disable=SC2086
64 echo "$2 - Size:" $size
78 declare -i duration_t=-1
80 # Read in "stamp file"
81 # shellcheck source=/dev/null
84 if [ $start_t -gt 0 ] && [ $end_t -gt 0 ]; then
85 if [ "$(uname)" = "Linux" ]; then
86 start=$(date -d @"$start_t")
87 end=$(date -d @"$end_t")
89 start=$(date -r "$start_t")
90 end=$(date -r "$end_t")
92 duration_t=$end_t-$start_t
94 if [ "$(uname)" = "Linux" ]; then
95 end=$(LC_ALL=C stat "$1" | grep "^Modify: " \
96 | cut -d':' -f2- | cut -d. -f1)
98 end=$(LC_ALL=C stat -f "%Sc" "$1")
101 # shellcheck disable=SC2086
102 [ -n "$start" ] && echo "$2 - Start date:" $start
103 # shellcheck disable=SC2086
104 [ -n "$end" ] && echo "$2 - End date:" $end
105 if [ $duration_t -gt -1 ]; then
106 declare -i s=$duration_t
107 if [ $s -ge 60 ]; then
108 declare -i m=$((s / 60))
109 declare -i s=$((s % 60))
110 if [ $m -ge 60 ]; then
111 declare -i h=$((m / 60))
112 declare -i m=$((m % 60))
113 if [ $h -ge 24 ]; then
114 declare -i d=$((h / 24))
115 declare -i h=$((h % 24))
116 duration="${d}d${h}h${m}m${s}s"
118 duration="${h}h${m}m${s}s"
121 duration="${m}m${s}s"
126 echo "$2 - Duration:" $duration
131 24) txt=", WARNING (some files vanished during backup)"; ;;
134 [ $code -ge 0 ] && echo "$2 - Result code: ${code}${txt}"
136 echo "$2 - No timestamp recorded! Backup currently running or aborted?"
141 echo " - Snapshot: $1"
143 Check_Stamp "$1/.stamp" " "
148 # shellcheck source=/dev/null
149 [ -r "$1" ] && source "$1"
150 [ -z "$code" ] && code=1
154 if [[ "$1" == "-r" || "$1" == "--running" ]]; then
155 pid="$(cat "$PIDFILE" 2>/dev/null)"
156 if [ -n "$pid" ]; then
157 if kill -0 "$pid" >/dev/null 2>&1; then
158 echo "Backup job running with PID $pid."
160 pstree -ap "$pid" 2>/dev/null
163 echo "No backup running (invalid PID $pid in \"$PIDFILE\")."
167 echo "No backup running (no PID file \"$PIDFILE\" found)."
171 while [ $# -gt 0 ]; do
192 if [ $# -ge 1 ]; then
194 if [ ! -r "${conf_d}/$s" ]; then
195 echo "$NAME: Can' read \"${conf_d}/$s\"!"
198 sys+=("${conf_d}/$s")
204 for f in "${sys[@]}"; do
205 [[ -r "$f" && -f "$f" ]] || continue
207 fname=$(basename "$f")
209 "backup-script.conf"|*.sh)
214 # Set global defaults
216 target="$default_target"
217 generations="$default_generations"
219 # Read in system configuration file
220 # shellcheck source=/dev/null
223 target="$target/$(basename "$f")"
225 [ -d "$target" ] || continue
227 if [ "$ONLY_ERRORS" != "0" ]; then
228 [ $generations -gt 0 ] \
229 && result=$(Get_Result_Code "$target/latest/.stamp") \
230 || result=$(Get_Result_Code "$target/.stamp")
231 [[ $result -eq 0 || $result -eq 24 ]] && continue
235 [ "$system" = "$fname" ] && echo "$fname" || echo "$fname [$system]"
237 # System target directory
238 echo "- Target: $target"
240 if [ $generations -gt 0 ]; then
241 if [ "$ONLY_LATEST" = "0" ]; then
242 for s in $target/[0-9]*-[0-9]* $target/current; do
243 [ -e "$s" ] || continue
245 snapshots=$snapshots+1
247 elif [ -e "$target/latest" ]; then
248 Snapshot_Info "$target/latest"
249 snapshots=$snapshots+1
252 # Timestamp and result code
254 Check_Stamp "$target/.stamp"
255 snapshots=$snapshots+1
262 if [ "$ONLY_ERRORS" != "0" ]; then
263 status="failed "; p0="."; pN="!"
265 status=""; p0="!"; pN="."
267 if [ $count -lt 1 ]; then
268 echo "No ${status}backups found${p0}"
271 [ $count -eq 1 ] && sc="" || sc="s"
272 [ $snapshots -eq 1 ] && ss="" || ss="s"
273 echo "$count ${status}system backup$sc found, $snapshots snapshot$ss${pN}"