139 lines
4.6 KiB
Plaintext
139 lines
4.6 KiB
Plaintext
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#!/bin/sh
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# Setting this, so the repo does not need to be given on the commandline:
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machine="$( hostnamectl --static )"
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remoteHost="reposerver"
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remoteUser=""
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export BORG_REPO="$remoteUser@$remoteHost:/backup/$machine"
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# See the section "Passphrase notes" for more infos.
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export BORG_PASSPHRASE=''
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# Non-interactively accept relocation of a repository
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export BORG_RELOCATED_REPO_ACCESS_IS_OK=yes
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# Some helpers and error handling:
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logPath="/home/ez/.cache/logs/borg"
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logFile="$logPath/$( date +%Y-%m-%d-%H:%M:%S.%N )"
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infoLine() { printf "%s\t%s\n" "$( date +%H:%M:%S )" "$*" | tee -a "$logFile"; }
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seeLog() { printf "\n%s %s" "$*" "$logFile"; }
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trap 'echo $( date ) Backup interrupted >&2; exit 2' INT TERM
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# Notify user of running backup
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notify() {
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if [ "$(command -v sudo)" ] && [ "$(command -v notify-send)" ]; then
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dialog_kind=$(echo "$1"|tr '[:upper:]' '[:lower:]')
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if [ "$dialog_kind" = 'info' ]; then
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dialog_kind='information'
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fi
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for u in $(users); do
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sudo -u "$u" DISPLAY=:0 \
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DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/"$(sudo -u "$u" id -u)/bus" \
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notify-send -a 'luky-borg-backup' "$1" "$2" --icon="dialog-$dialog_kind"
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done
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fi
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}
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# Remove logs of pruned backups
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tidyLogs() {
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mapfile -t removeList < <(grep -w "^Pruning archive" "$logFile" | awk '{ print $4 }' )
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for ((i=0; i<${#removeList[@]}; i++)); do
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rm "$logPath/${removeList[i]}"
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done
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}
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# Backup the most important directories into an archive named after
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# the machine this script is currently running on:
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notify info "Starting backup to $BORG_REPO"
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infoLine "Starting backup to $BORG_REPO"
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borg create \
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--verbose \
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--stats \
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--show-rc \
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--compression lz4 \
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--progress \
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--exclude-caches \
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--exclude 'home/*/.cache/*' \
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--exclude 'var/tmp/*' \
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--exclude '/etc/mtab' \
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--exclude '/backup/' \
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--exclude '/dev/' \
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--exclude '/lost+found/' \
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--exclude '/mnt/' \
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--exclude '/proc/' \
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--exclude '/run/' \
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--exclude '/sys/' \
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--exclude '/tmp/' \
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--exclude '/home/*/.cache/mozilla/firefox/' \
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--exclude '/home/*/.local/share/Trash/' \
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--exclude '/home/*/.thumbnails/' \
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\
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::'{hostname}-{now:%Y-%m-%d-%H:%M:%S.%f}' \
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/boot \
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/bin \
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/efi \
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/etc \
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/home \
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/lib \
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/lib64 \
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/opt \
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/root \
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/sbin \
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/srv \
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/usr \
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/var \
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2>> "$logFile"
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backup_exit=$?
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# Use the `prune` subcommand to maintain 7 daily, 4 weekly and 6 monthly
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# archives of THIS machine. The '{hostname}-*' matching is very important to
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# limit prune's operation to this machine's archives and not apply to
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# other machines' archives also:
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notify info "Pruning repository: $BORG_REPO"
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infoLine "Pruning repository"
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borg prune \
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--list \
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--glob-archives '{hostname}-*' \
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--show-rc \
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--keep-daily 3 \
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--keep-weekly 4 \
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--keep-monthly 6 \
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--keep-yearly 1 \
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2>> "$logFile"
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prune_exit=$?
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# actually free repo disk space by compacting segments
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notify info "Compacting repository: $BORG_REPO"
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infoLine "Compacting repository"
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borg compact 2>> "$logFile"
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compact_exit=$?
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# Don't forget to tidy up the log files!
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tidyLogs
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# use highest exit code as global exit code
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global_exit=$(( backup_exit > prune_exit ? backup_exit : prune_exit ))
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global_exit=$(( compact_exit > global_exit ? compact_exit : global_exit ))
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if [ ${global_exit} -eq 0 ]; then
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notify info "Backup, Prune, and Compact finished successfully to $BORG_REPO"
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infoLine "Backup, Prune, and Compact finished successfully to $BORG_REPO"
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seeLog "Log available:"
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elif [ ${global_exit} -eq 1 ]; then
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notify info "Backup, Prune, and/or Compact finished with warnings"
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infoLine "Backup, Prune, and/or Compact finished with warnings"
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seeLog "Check log for warnings:"
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else
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notify info "Backup, Prune, and/or Compact finished with errors"
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infoLine "Backup, Prune, and/or Compact finished with errors"
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seeLog "Check log for errors:"
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fi
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exit ${global_exit}
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