-#!/bin/sh
+#!/bin/bash
#
# backup-script system for cloning systems using rsync
-# Copyright (c)2008-2013 Alexander Barton, alex@barton.de
+# Copyright (c)2008-2015 Alexander Barton, alex@barton.de
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
#
NAME=`basename $0`
-CONF_D="/etc/backup-script.d"
+PIDFILE="/var/run/backup-script.pid"
QUICK=0
+ONLY_ERRORS=0
+ONLY_LATEST=0
export LC_ALL=C
declare -i count=0
+declare -i snapshots=0
+
+# Default settings, can be overwritten in backup-script.conf:
+[ -d "/usr/local/etc/backup-script.d" ] \
+ && conf_d="/usr/local/etc/backup-script.d" \
+ || conf_d="/etc/backup-script.d"
+default_target="/var/backups"
+default_generations=0
+
+# Search configuration file (last one is used as default!)
+for conf in \
+ "/usr/local/etc/backup-script.conf" \
+ "/etc/backup-script.conf" \
+ "${conf_d}/backup-script.conf" \
+ "/usr/local/etc/backup-script.conf" \
+; do
+ if [ -r "$conf" ]; then
+ source "$conf"
+ break
+ fi
+done
-default_target=""
-default_user="root"
+Usage() {
+ echo "Usage: $NAME [--errors|--latest] [--quick] [<system> [<system> [...]]]"
+ echo " $NAME --running"
+ echo
+ echo " --errors, -e Only show current backups with errors (implies \"--latest\")."
+ echo " --latest, -l Only show latest backup generations."
+ echo " --quick, -q Don't calculate backup sizes."
+ echo " --running, -r Check if an \"backup-script\" task is currently running."
+ echo
+ exit 2
+}
-if [ "$1" == "-q" ]; then
- QUICK=1
- shift
-fi
+Check_Size() {
+ # $1: directory
+ # $2: padding
-case "$1" in
- "-"*)
- echo "Usage: $NAME [-p] [<system> [<system> [...]]]"
+ if [ "$QUICK" = "0" ]; then
+ size=`du -Hhs "$1" | cut -f1`
+ echo "$2 - Size:" $size
+ fi
+}
+
+Check_Stamp() {
+ # $1: stamp file
+ # $2: padding
+
+ if [ -f "$1" ]; then
+ if [ "$(uname)" = "Linux" ]; then
+ last=`LC_ALL=C stat "$1" | grep "^Modify: " \
+ | cut -d':' -f2- | cut -d. -f1`
+ else
+ last=`LC_ALL=C stat -f "%Sc" "$1"`
+ fi
+ [ -n "$last" ] && echo "$2 - Date:" $last
+ code=
+ source "$1"
+ case "$code" in
+ 0) txt=", OK"; ;;
+ 24) txt=", WARNING (some files vanished during backup)"; ;;
+ *) txt=", ERROR"
+ esac
+ [ -n "$code" ] && echo "$2 - Result code: $code$txt"
+ else
+ echo "$2 - No timestamp recorded! Backup currently running or aborted?"
+ fi
+}
+
+Snapshot_Info() {
+ echo " - Snapshot: $1"
+ Check_Size "$1" " "
+ Check_Stamp "$1/.stamp" " "
+}
+
+Get_Result_Code() {
+ code=1
+ [ -r "$1" ] && source "$1"
+ [ -z "$code" ] && code=1
+ echo $code
+}
+
+if [ "$1" == "-r" -o "$1" == "--running" ]; then
+ pid="$(cat "$PIDFILE" 2>/dev/null)"
+ if [ -n "$pid" ]; then
+ if kill -0 "$pid" >/dev/null 2>&1; then
+ echo "Backup job running with PID $pid."
+ echo
+ pstree -ap "$pid" 2>/dev/null
+ exit 0
+ else
+ echo "No backup running (invalid PID $pid in \"$PIDFILE\")."
+ exit 1
+ fi
+ fi
+ echo "No backup running (no PID file \"$PIDFILE\" found)."
exit 1
- ;;
-esac
+fi
+
+while [ $# -gt 0 ]; do
+ case "$1" in
+ "--errors"|"-e")
+ ONLY_ERRORS=1
+ ONLY_LATEST=1
+ ;;
+ "--latest"|"-l")
+ ONLY_LATEST=1
+ ;;
+ "--quick"|"-q")
+ QUICK=1
+ ;;
+ "-"*)
+ Usage
+ ;;
+ *)
+ break
+ esac
+ shift
+done
if [ $# -ge 1 ]; then
- for s in $@; do
- if [ ! -r "${CONF_D}/$s" ]; then
- echo "$NAME: Can' read \"${CONF_D}/$s\"!"
+ for s in "$@"; do
+ if [ ! -r "${conf_d}/$s" ]; then
+ echo "$NAME: Can' read \"${conf_d}/$s\"!"
exit 1
fi
- sys="$sys ${CONF_D}/$s"
+ sys="$sys ${conf_d}/$s"
done
else
- sys=${CONF_D}/*
+ sys="${conf_d}/"*
fi
-[ -r "${CONF_D}/backup-script.conf" ] && source "${CONF_D}/backup-script.conf"
-
for f in $sys; do
[ -r "$f" -a -f "$f" ] || continue
- system=`basename $f`
- target="$default_target"
-
- case "$system" in
+ fname=`basename $f`
+ case "$fname" in
"backup-script.conf"|*.sh)
continue
;;
esac
- # Read in configuration file
+ # Set global defaults
+ system="$fname"
+ target="$default_target"
+ generations="$default_generations"
+
+ # Read in system configuration file
source "$f"
- destdir="$target"
- target="$target/$system"
+ target="$target/$(basename "$f")"
[ -d "$target" ] || continue
- echo "-- $system -- "
- echo "Storage: $target"
- if [ "$QUICK" = "0" ]; then
- size=$( du -sh "$target" | cut -f1 )
- echo "Size: $size"
+ if [ "$ONLY_ERRORS" != "0" ]; then
+ [ $generations -gt 0 ] \
+ && result=$(Get_Result_Code "$target/latest/.stamp") \
+ || result=$(Get_Result_Code "$target/.stamp")
+ [ $result -eq 0 -o $result -eq 24 ] && continue
fi
- if [ -f "$target/.stamp" ]; then
- stat "$target/.stamp" | grep "^Modify: " | cut -d. -f1
- unset code
- source "$target/.stamp"
- [ -n "$code" ] && echo "Result code: $code"
+
+ # System name
+ [ "$system" = "$fname" ] && echo "$fname" || echo "$fname [$system]"
+
+ # System target directory
+ echo "- Target: $target"
+
+ if [ $generations -gt 0 ]; then
+ if [ "$ONLY_LATEST" = "0" ]; then
+ for s in $target/[0-9]*-[0-9]* $target/current; do
+ [ -e "$s" ] || continue
+ Snapshot_Info "$s"
+ snapshots=$snapshots+1
+ done
+ elif [ -e "$target/latest" ]; then
+ Snapshot_Info "$target/latest"
+ snapshots=$snapshots+1
+ fi
else
- echo "No timestamp recorded!?"
+ # Timestamp and result code
+ Check_Size "$target"
+ Check_Stamp "$target/.stamp"
+ snapshots=$snapshots+1
fi
count=$count+1
echo "No backups found!"
exit 1
fi
-echo "$count system backups found."
+[ $count -eq 1 ] && sc="" || sc="s"
+[ $snapshots -eq 1 ] && ss="" || ss="s"
+echo "$count system backup$sc found, $snapshots snapshot$ss."
# -eof-
projects / backup-script.git / blobdiff