#!/bin/bash
#
# backup-script system for cloning systems using rsync
-# Copyright (c)2008-2014 Alexander Barton, alex@barton.de
+# Copyright (c)2008-2016 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
# Please read the file COPYING, README and AUTHORS for more information.
#
-NAME=`basename $0`
-CONF_D="/etc/backup-script.d"
+NAME=$(basename "$0")
+PIDFILE="/var/run/backup-script.pid"
QUICK=0
+ONLY_ERRORS=0
+ONLY_LATEST=0
export LC_ALL=C
declare -i snapshots=0
# Default settings, can be overwritten in backup-script.conf:
-default_target=""
+[ -d "/usr/local/etc/backup-script.d" ] \
+ && conf_d="/usr/local/etc/backup-script.d" \
+ || conf_d="/etc/backup-script.d"
+default_backup_type="rsync"
default_generations=0
+default_target="/var/backups"
+
+# Set shell options.
+shopt -s nullglob
+
+# Search configuration file (last one is used as default!)
+for conf in \
+ "/usr/local/etc/backup-script.conf" \
+ "/etc/backup-script.conf" \
+ "${conf_d}/backup-script.conf" \
+ "/usr/local/etc/backup-script.conf" \
+; do
+ if [ -r "$conf" ]; then
+ # shellcheck source=/dev/null
+ source "$conf"
+ break
+ fi
+done
+
+Usage() {
+ echo "Usage: $NAME [--errors|--latest] [--quick] [<job> [<job> [...]]]"
+ echo " $NAME --running"
+ echo
+ echo " -e, --errors Only show current backups with errors (implies \"--latest\")."
+ echo " -l, --latest Only show latest backup generations."
+ echo " -q, --quick Don't calculate backup sizes."
+ echo " -r, --running Check if an \"backup-script\" task is currently running."
+ echo
+ echo "When no <job> is given, all defined jobs are listed."
+ echo
+ exit 2
+}
Check_Size() {
# $1: directory
# $2: padding
if [ "$QUICK" = "0" ]; then
- size=`du -sh "$1" | cut -f1`
+ size=$(du -Hhs "$1" | cut -f1)
+ # shellcheck disable=SC2086
echo "$2 - Size:" $size
fi
}
# $2: padding
if [ -f "$1" ]; then
- last=`stat "$1" | grep "^Modify: " \
- | cut -d':' -f2- | cut -d. -f1`
- [ -n "$last" ] && echo "$2 - Date:" $last
- unset code
+ declare -i code=-1
+ declare -i start_t=-1
+ start=""
+ declare -i end_t=-1
+ end=""
+ declare -i duration_t=-1
+
+ # Read in "stamp file"
+ # shellcheck source=/dev/null
source "$1"
+
+ if [ $start_t -gt 0 ] && [ $end_t -gt 0 ]; then
+ if [ "$(uname)" = "Linux" ]; then
+ start=$(date -d @"$start_t")
+ end=$(date -d @"$end_t")
+ else
+ start=$(date -r "$start_t")
+ end=$(date -r "$end_t")
+ fi
+ duration_t=$end_t-$start_t
+ else
+ if [ "$(uname)" = "Linux" ]; then
+ end=$(LC_ALL=C stat "$1" | grep "^Modify: " \
+ | cut -d':' -f2- | cut -d. -f1)
+ else
+ end=$(LC_ALL=C stat -f "%Sc" "$1")
+ fi
+ fi
+ # shellcheck disable=SC2086
+ [ -n "$start" ] && echo "$2 - Start date:" $start
+ # shellcheck disable=SC2086
+ [ -n "$end" ] && echo "$2 - End date:" $end
+ if [ $duration_t -gt -1 ]; then
+ declare -i s=$duration_t
+ if [ $s -ge 60 ]; then
+ declare -i m=$((s / 60))
+ declare -i s=$((s % 60))
+ if [ $m -ge 60 ]; then
+ declare -i h=$((m / 60))
+ declare -i m=$((m % 60))
+ if [ $h -ge 24 ]; then
+ declare -i d=$((h / 24))
+ declare -i h=$((h % 24))
+ duration="${d}d${h}h${m}m${s}s"
+ else
+ duration="${h}h${m}m${s}s"
+ fi
+ else
+ duration="${m}m${s}s"
+ fi
+ else
+ duration="${s}s"
+ fi
+ echo "$2 - Duration:" $duration
+ fi
+
case "$code" in
0) txt=", OK"; ;;
24) txt=", WARNING (some files vanished during backup)"; ;;
*) txt=", ERROR"
esac
- [ -n "$code" ] && echo "$2 - Result code: $code$txt"
+ [ $code -ge 0 ] && echo "$2 - Result code: ${code}${txt}"
else
echo "$2 - No timestamp recorded! Backup currently running or aborted?"
fi
}
-if [ "$1" == "-q" ]; then
- QUICK=1
- shift
-fi
+Snapshot_Info() {
+ echo " - Snapshot: $1"
+ Check_Size "$1" " "
+ Check_Stamp "$1/.stamp" " "
+}
+
+Get_Result_Code() {
+ code=1
+ # shellcheck source=/dev/null
+ [ -r "$1" ] && source "$1"
+ [ -z "$code" ] && code=1
+ echo $code
+}
-case "$1" in
- "-"*)
- echo "Usage: $NAME [-q] [<system> [<system> [...]]]"
+if [[ "$1" == "-r" || "$1" == "--running" ]]; then
+ pid="$(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+=("${conf_d}/$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 "$f" ] || continue
+for f in "${sys[@]}"; do
+ [[ -r "$f" && -f "$f" ]] || continue
- fname=`basename $f`
+ fname=$(basename "$f")
case "$fname" in
"backup-script.conf"|*.sh)
continue
system="$fname"
target="$default_target"
generations="$default_generations"
+ backup_type="$default_backup_type"
# Read in system configuration file
+ # shellcheck source=/dev/null
source "$f"
- # Validate configuration
- [ "$system" = "localhost" -o "$system" = "127.0.0.1" ] && local=1
-
- destdir="$target"
- target="$target/$fname"
+ target="$target/$(basename "$f")"
[ -d "$target" ] || continue
+ if [ "$ONLY_ERRORS" != "0" ]; then
+ [[ "$backup_type" = "disabled" ]] && continue
+ [ $generations -gt 0 ] \
+ && result=$(Get_Result_Code "$target/latest/.stamp") \
+ || result=$(Get_Result_Code "$target/.stamp")
+ [[ $result -eq 0 || $result -eq 24 ]] && continue
+ fi
+
# System name
[ "$system" = "$fname" ] && echo "$fname" || echo "$fname [$system]"
echo "- Target: $target"
if [ $generations -gt 0 ]; then
- for s in $target/[0-9]*-[0-9]*; do
- echo " - Snapshot: $s"
- Check_Size "$s" " "
- Check_Stamp "$s/.stamp" " "
+ if [ "$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=$snapshots+1
- done
+ fi
else
# Timestamp and result code
- Check_Size "$s"
+ Check_Size "$target"
Check_Stamp "$target/.stamp"
snapshots=$snapshots+1
fi
echo
done
+if [ "$ONLY_ERRORS" != "0" ]; then
+ status="failed "; p0="."; pN="!"
+else
+ status=""; p0="!"; pN="."
+fi
if [ $count -lt 1 ]; then
- echo "No backups found!"
+ echo "No ${status}backups found${p0}"
exit 1
fi
[ $count -eq 1 ] && sc="" || sc="s"
[ $snapshots -eq 1 ] && ss="" || ss="s"
-echo "$count system backup$sc found, $snapshots snapshot$ss."
+echo "$count ${status}system backup$sc found, $snapshots snapshot$ss${pN}"
# -eof-
projects / backup-script.git / blobdiff