102 lines
3.4 KiB
Plaintext
102 lines
3.4 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="$( hostnamectl --static )"
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export BORG_REPO="/backup/$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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logFile="/home/ez/.cache/logs/borg/$( date +%Y-%m-%d-%H:%M:%S.%N )"
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infoLine() { printf "%s\t%s\n" "$( 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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# 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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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-%dT%H:%M:%S.%f}' \
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/boot \
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/bin \
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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=$?
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# Use the `prune` subcommand to maintain 7 daily, 4 weekly and 6 monthly
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# archives of THIS machine. The '{hostname}-*' matching is very important to
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# limit prune's operation to this machine's archives and not apply to
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# other machines' archives also:
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infoLine "Pruning repository"
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borg prune \
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--list \
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--glob-archives '{hostname}-*' \
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--show-rc \
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--keep-daily 3 \
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--keep-weekly 4 \
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--keep-monthly 6 \
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--keep-yearly 1 \
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2>> "$logFile"
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prune_exit=$?
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# actually free repo disk space by compacting segments
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infoLine "Compacting repository"
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borg compact 2>> "$logFile"
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compact_exit=$?
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# use highest exit code as global exit code
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global_exit=$(( 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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infoLine "Backup, Prune, and Compact finished successfully"
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seeLog "Log available:"
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elif [ ${global_exit} -eq 1 ]; then
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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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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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