--- /dev/null
+#!/bin/bash
+#
+# backup-script system for cloning systems using rsync
+# 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
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# Please read the file COPYING, README and AUTHORS for more information.
+#
+
+NAME=`basename $0`
+
+VERBOSE=0
+QUIET=0
+
+export LC_ALL=C
+
+# Default settings, can be overwritten in backup-script.conf:
+[ -d "/usr/local/etc/backup-script.d" ] \
+ && conf_d="/usr/local/etc/backup-script.d" \
+ || conf_d="/etc/backup-script.d"
+
+default_backup_type="rsync"
+default_files="running-config"
+default_generations=0
+default_target="/var/backups"
+
+# Search configuration file (last one is used as default!)
+for conf in \
+ "/usr/local/etc/backup-script.conf" \
+ "/etc/backup-script.conf" \
+ "${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 [-q|--quiet] [-v|--verbose] [<system> [<system> [...]]]"
+ echo " $NAME <-d|--dirs> <dir1> <dir2>"
+ echo
+ exit 2
+}
+
+BeginDiff() {
+ echo "Differences in $*:"
+}
+
+PipeDiff() {
+ local line
+ IFS=
+ while read line; do
+ echo -e " | $line"
+ done
+}
+
+EndDiff() {
+ :
+}
+
+HandleSystem() {
+ local fname="$1"
+
+ # Set global defaults
+ local backup_type="$default_backup_type"
+ local files="$default_files"
+ local generations="$default_generations"
+ local local=0
+ local system="$fname"
+ local target="$default_target"
+
+ # Read in system configuration file
+ # shellcheck source=/dev/null
+ source "$f"
+
+ target="$target/$(basename "$f")"
+
+ [[ -d "$target" ]] || return 0
+
+ # System name
+ [[ "$system" == "$fname" ]] \
+ && systxt="\"$system\"" \
+ || systxt="\"$fname\" [\"$system\"]"
+ [[ "$local" -eq 0 ]] \
+ && echo "Checking $systxt ..." \
+ || echo "Checking $systxt (local system) ..."
+
+ # Check if job is disabled
+ if [[ "$backup_type" == "disabled" ]]; then
+ echo "Job is DISABLED and will be skipped."
+ echo; return 0
+ fi
+
+ if [ $generations -lt 1 ]; then
+ echo "No generations configured, nothing to compare, skipping system!"
+ echo; return 1
+ fi
+
+ local latest_d="$target/latest"
+ if [[ ! -d "$latest_d" || ! -r "$latest_d/.stamp" ]]; then
+ echo "Failed to access latest backup generation in \"$latest_d\", skipping system!"
+ echo; return 1
+ fi
+ echo "Found latest generation in \"$latest_d\"."
+
+ declare -i code=-1
+ source "$latest_d/.stamp"
+
+ if [[ $code -ne 0 && $code -ne 24 ]]; then
+ echo "Last backup generation has errors, skipping system!"
+ echo; return 1
+ fi
+
+ # Search previous generation without errors
+ local previous_d=""
+ for d in $(ls -1dt $target/[0-9]*-[0-9]*); do
+ [[ -d "$d" && -r "$d/.stamp" ]] || return 0
+
+ declare -i code=-1
+ source "$d/.stamp"
+
+ if [[ $code -eq 0 || $code -eq 24 ]]; then
+ previous_d="$d"
+ break
+ fi
+ done
+ if [[ -z "$previous_d" || ! -d "$previous_d" || ! -r "$previous_d/.stamp" ]]; then
+ echo "Failed to find previous successfull backup generation, skipping system!"
+ echo; return 1
+ fi
+ echo "Comparing with generation in $previous_d ..."
+
+ DiffGenerations "$backup_type" "$previous_d" "$latest_d" "$files"
+ return_code=$?
+
+ echo
+ return $return_code
+}
+
+DiffGenerations() {
+ local backup_type="$1"
+ local gen1_d="$2"
+ local gen2_d="$3"
+ local files="$4"
+
+ local return_code=0
+
+ if [[ "$backup_type" == "rsync" ]]; then
+ # rsync Backup Type
+
+ for file in \
+ /etc/passwd \
+ /etc/shadow \
+ /etc/group \
+ /etc/gshadow \
+ \
+ /etc/fstab \
+ /etc/hostname \
+ /etc/hosts \
+ /etc/machine-id \
+ /etc/modules \
+ /etc/network/interfaces \
+ /etc/networks \
+ ; do
+ [[ -r "${gen1_d}${file}" ]] || continue
+
+ [[ $VERBOSE -ne 0 ]] && echo "Checking \"$file\" ..."
+ diff -U 3 "${gen1_d}${file}" "${gen2_d}${file}" >"$tmp_diff"
+ if [[ $? -ne 0 ]]; then
+ BeginDiff "\"$file\""
+ tail -n +3 "$tmp_diff" | PipeDiff
+ EndDiff
+ return_code=1
+ fi
+ done
+
+ if [[ -d "${gen1_d}/var/lib/dpkg/info" && -d "${gen2_d}/var/lib/dpkg/info" ]]; then
+ [[ $VERBOSE -ne 0 ]] && echo "Checking list of installed packages ..."
+ chroot "${gen1_d}" dpkg --get-selections >"$tmp_1" || return 2
+ chroot "${gen2_d}" dpkg --get-selections >"$tmp_2" || return 2
+ diff -U 0 "$tmp_1" "$tmp_2" >"$tmp_diff"
+ if [[ $? -ne 0 ]]; then
+ BeginDiff "list of installed packages"
+ tail -n +3 "$tmp_diff" | grep -v '^@@ ' | PipeDiff
+ EndDiff
+ return_code=1
+ fi
+ fi
+ elif [[ "$backup_type" == "scp" ]]; then
+ # scp Backup type
+ file=$(basename "$files")
+ [[ $VERBOSE -ne 0 ]] && echo "Checking \"$file\" ..."
+ diff -U 3 "${gen1_d}/${file}" "${gen2_d}/${file}" >"$tmp_diff"
+ if [[ $? -ne 0 ]]; then
+ BeginDiff "\"$file\""
+ tail -n +3 "$tmp_diff" | PipeDiff
+ EndDiff
+ return_code=1
+ fi
+ else
+ echo "Backup type \"$backup_type\" undefined, \"$system\" skipped!"
+ echo; return 2
+ fi
+
+ return $return_code
+}
+
+MkTempFiles() {
+ tmp_1=$(mktemp /tmp/$NAME.XXXXXX) || exit 1
+ tmp_2=$(mktemp /tmp/$NAME.XXXXXX) || exit 1
+ tmp_diff=$(mktemp /tmp/$NAME.XXXXXX) || exit 1
+ tmp_out=$(mktemp /tmp/$NAME.XXXXXX) || exit 1
+}
+
+CleanUp() {
+ rm -f "$tmp_1" "$tmp_2" "$tmp_diff" "$tmp_out"
+}
+
+while [[ $# -gt 0 ]]; do
+ case "$1" in
+ "-d"|"--dirs")
+ shift
+ [[ $# -eq 2 ]] || Usage
+ MkTempFiles
+ DiffGenerations "$default_backup_type" "$1/" "$2/" "$default_files"
+ return_code=$?
+ CleanUp
+ exit $return_code
+ ;;
+ "-q"|"--quiet")
+ QUIET=1; shift
+ ;;
+ "-v"|"--verbose")
+ VERBOSE=1; shift
+ ;;
+ "-"*)
+ Usage
+ ;;
+ *)
+ break
+ esac
+done
+
+if [[ $# -ge 1 ]]; then
+ for s in "$@"; do
+ if [ ! -r "${conf_d}/$s" ]; then
+ echo "$NAME: Can' read \"${conf_d}/$s\"!"
+ exit 1
+ fi
+ sys+=("${conf_d}/$s")
+ done
+else
+ sys=("${conf_d}/"*)
+fi
+
+MkTempFiles
+for f in "${sys[@]}"; do
+ [[ -r "$f" && -f "$f" ]] || continue
+
+ fname=`basename $f`
+ case "$fname" in
+ "backup-script.conf"|*.sh)
+ continue
+ ;;
+ esac
+
+ HandleSystem "$fname" >"$tmp_out" 2>&1
+ [[ $QUIET -eq 0 || $? -ne 0 ]] && cat "$tmp_out"
+done
+CleanUp
+
+# -eof-
projects / backup-script.git / commitdiff