#!/bin/bash
#
# backup-script system for cloning systems using rsync
-# Copyright (c)2008-201
5 Alexander Barton <alex@barton.de>
+# Copyright (c)2008-201
6 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
DRYRUN=0
VERBOSE=0
+TAG=""
+PREPOSTEXEC=1
export LC_ALL=C
declare -i count_started=0
declare -i count_ok=0
declare -i count_ok_vanished=0
+declare -i count_enabled=0
destinations=""
[ -d "/usr/local/etc/backup-script.d" ] \
&& conf_d="/usr/local/etc/backup-script.d" \
|| conf_d="/etc/backup-script.d"
+setup_exec=""
pre_exec=""
post_exec=""
default_backup_type="rsync"
default_ping=1
default_local=0
default_generations=0
+default_io_timeout="1800"
default_job_pre_exec=""
default_job_post_exec=""
+default_tags=""
Usage() {
- echo "Usage: $NAME [<options>] [<system> [<system> [...]]]"
+ echo "Usage: $NAME [<options>] [<job> [<job> [...]]]"
echo
- echo " -p, --progress Show progress, see rsync(1)."
- echo " -n, --dry-run Test run only, don't copy any data."
+ echo " -n, --dry-run Test run only, don't copy any data."
+ echo " -p, --progress Show progress, see rsync(1)."
+ echo " -t TAG, --tag TAG Only run jobs with tag TAG."
+ echo " -x, --no-exec Don't run global pre-/post-exec commands."
echo
- echo "When no <system> is given, all defined systems are used."
+ echo "When no <job> is given, all defined systems are used."
echo
+ # shellcheck disable=SC2086
echo -e $config_info
echo
exit 2
}
CleanUp() {
- if [ -n "$post_exec" ]; then
+ if [[ -n "$pre_exec" && $PREPOSTEXEC -ne 0 ]]; then
echo "Executing \"$post_exec\" ..."
sh -c $post_exec
if [ $? -ne 0 ]; then
GotSignal() {
echo
- echo "--> Got break signal, cleaning up & aborting ..."
+ echo "--> Got signal, cleaning up & aborting ..."
echo
CleanUp
echo -n "Aborted: "; date
case "$fs" in
"btrfs")
# Search directory of last generation, if any
+ # shellcheck disable=SC2012
last=$(ls -1d "$sys_target"/[0-9]* 2>/dev/null | sort -r | head -n1)
if [ -n "$last" ]; then
if [ ! -d "$last" ]; then
# Read in configuration file
config_info="Configuration file is \"$conf\""
if [ -r "$conf" ]; then
+ # shellcheck source=/dev/null
source "$conf"
else
config_info="${config_info} (not readable, using defaults)"
"-p"|"--progress")
VERBOSE=1; shift
;;
+ "-t"|"--tag")
+ shift; TAG="$1"; shift
+ [ -n "$TAG" ] || Usage
+ ;;
+ "-x"|"--no-exec")
+ PREPOSTEXEC=0; shift
+ ;;
"-"*)
Usage
;;
exit 1
fi
echo "Rsync command is $rsync, protocol version $rsync_proto."
-echo
-trap GotSignal SIGINT
+[[ -n "$TAG" ]] && echo "Running jobs tagged with \"$TAG\"."
+echo
if [ $# -ge 1 ]; then
for s in "$@"; do
echo "$NAME: Can' read \"${conf_d}/$s\"!"
exit 3
fi
- sys="$sys ${conf_d}/$s"
+ sys+=("${conf_d}/$s")
done
else
- sys="${conf_d}/"*
+ sys=("${conf_d}/"*)
fi
+if [[ -n "$setup_exec" && $PREPOSTEXEC -ne 0 ]]; then
+ echo "Executing \"$setup_exec\" ..."
+ sh -c $setup_exec
+ if [ $? -ne 0 ]; then
+ echo "Error: setup command failed!"; echo
+ echo "Aborting backup."; echo
+ exit 5
+ fi
+ sleep 2
+ echo
+fi
+
+trap GotSignal SIGINT SIGTERM
+
# check and create PID file
if [ -e "$PIDFILE" ]; then
echo "Lockfile \"$PIDFILE\" already exists."
echo "$$" >>"$PIDFILE"
fi
-if [ -n "$pre_exec" ]; then
+if [[ -n "$pre_exec" && $PREPOSTEXEC -ne 0 ]]; then
echo "Executing \"$pre_exec\" ..."
sh -c $pre_exec
if [ $? -ne 0 ]; then
echo
fi
-for f in $sys; do
+for f in "${sys[@]}"; do
[[ -r "$f" && -f "$f" ]] || continue
fname=$(basename "$f")
generations="$default_generations"
job_pre_exec="$default_job_pre_exec"
job_post_exec="$default_job_post_exec"
+ tags="$default_tags"
+ io_timeout="$default_io_timeout"
# Compatibility with backup-pull(1) script: Save global values ...
pre_exec_saved="$pre_exec"
unset post_exec
# Read in system configuration file
+ # shellcheck source=/dev/null
source "$f"
# Compatibility with backup-pull(1) script: Fix up configuration
compress=0
fi
- # Make sure "source" ends with a slash ("/")
- case "$source" in
- "*/")
+ # Add "NONE" tag when no tags are given in the config file:
+ [[ -z "$tags" ]] && tags="NONE"
+ # Add "auto-tags":
+ [[ "$local" -eq 1 ]] && tags="$tags,LOCAL"
+ # Check tags
+ if [[ -n "$TAG" && "$TAG" != "ALL" ]]; then
+ echo "$tags" | grep -E "(^|,)$TAG(,|$)" >/dev/null 2>&1
+ if [ $? -ne 0 ]; then
+ if [ "$DRYRUN" -ne 0 ]; then
+ echo "Tags of system \"$system\" don't match \"$TAG\": \"$tags\". Skipped."
+ echo
+ fi
+ continue
+ fi
+ fi
+
+ # Make sure "source_root" ends with a slash ("/")
+ case "$source_root" in
+ *"/")
;;
- "*")
- source="$source/"
+ *)
+ source_root="$source_root/"
esac
# Make sure "target" DOESN'T end with a slash ("/")
count_all=$count_all+1
+ # Check if job is disabled
+ if [ "$backup_type" = "disabled" ]; then
+ echo "Job is DISABLED and will be skipped."
+ echo; continue
+ fi
+
+ count_enabled=$count_enabled+1
+
# Check target directory
if [ -z "$target" ]; then
echo "No target directory specified for \"$system\"!? Skipped!"
# prepare (remote) command ...
if [[ "$backup_type" == "rsync" ]]; then
- cmd="$rsync --archive"
+ cmd="$rsync --archive --timeout=$io_timeout"
[ "$compress" -ne 0 ] && cmd="$cmd --compress"
[ "$local" -eq 0 ] && cmd="$cmd --rsh=\"$ssh_cmd\""
- cmd="$cmd --delete --delete-excluded --sparse"
+ cmd="$cmd --delete-during --delete-excluded --sparse"
if [ "$VERBOSE" -gt 0 ]; then
[ "$rsync_proto" -ge 31 ] \
&& cmd="$cmd --info=progress2" \
|| cmd="$cmd --progress"
fi
+ set -f
if [ "$source_root" = "$default_source_root" ]; then
for dir in \
"/dev/**" \
cmd="$cmd --exclude=$dir"
done
[ -n "$rsync_args_add" ] && cmd="$cmd $rsync_args_add"
+ set +f
[ "$local" -eq 0 ] \
&& cmd="$cmd ${user}@${system}:$source_root $sys_target/" \
$SHELL -c "$cmd"; ret=$?
end_t=$(date "+%s")
- echo "code=$ret" >"$stamp_file"
- echo "start_t=$start_t" >>"$stamp_file"
- echo "end_t=$end_t" >>"$stamp_file"
- echo "cmd='$cmd'" >>"$stamp_file"
- echo "backup_host='`hostname -f`'" >>"$stamp_file"
- echo "backup_user='`id -un`'" >>"$stamp_file"
+ {
+ echo "code=$ret"
+ echo "start_t=$start_t"
+ echo "end_t=$end_t"
+ echo "cmd='$cmd'"
+ echo "backup_host='$(hostname -f)'"
+ echo "backup_user='$(id -un)'"
+ } >"$stamp_file"
else
echo " *** Trial run, not executing save command!"
ret=0
fi
# Clean up old generations
declare -i gen_count=$generations+2
+ # shellcheck disable=SC2012
to_delete=$(ls -1t "$sys_root" 2>/dev/null | tail -n+$gen_count | sort)
if [[ -n "$to_delete" && $ok -eq 1 ]]; then
[ "$DRYRUN" -eq 0 ] \
fi
last=$(stat "$dir/.stamp" 2>/dev/null | grep "^Modify: " \
| cut -d':' -f2- | cut -d. -f1)
+ # shellcheck disable=SC2086
echo "Removing backup from" $last "..."
if [ "$DRYRUN" -eq 0 ]; then
DeleteSubvolume "$dir"
if [ "$DRYRUN" -eq 0 ]; then
paths=""
paths_zfs=""
+ # shellcheck disable=SC2086
for dest in $(echo $destinations | sed -e 's/ /\n/g' | sort | uniq); do
fs=$(GetFS "$dest")
case $fs in
esac
done
if [ -n "$paths" ]; then
+ # shellcheck disable=SC2086
df -h $paths
echo
fi
if [ -n "$paths_zfs" ]; then
+ # shellcheck disable=SC2086
zfs list $paths_zfs
echo
fi
echo -n "Done: "; date
echo
[ $count_all -eq 1 ] && s="" || s="s"
-echo " - $count_all job$s defined,"
+[ $count_enabled -eq $count_all ] \
+ && echo " - $count_all job$s defined (all enabled)," \
+ || echo " - $count_all job$s defined ($count_enabled enabled),"
[ $count_started -eq 1 ] && s="" || s="s"
echo " - $count_started job$s started,"
echo " - $count_ok done without errors."
echo "-----> THERE HAVE BEEN ERRORS! <-----"
echo
exit 6
-elif [ $count_all -ne $count_started ]; then
+elif [ $count_enabled -ne $count_started ]; then
exit 7
fi
projects / backup-script.git / blobdiff