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#!/usr/bin/bash
# 8 Sept 2019 SJ Pratt
# Copied from https://blog.andrewkeech.com/posts/170718_borg.html
# the envvar $REPONAME is something you should just hardcode
export BORG_REPO="/mnt/bak/borg" # (now set in ~/.bashrc)
# DIFF function
# List changes between this archive and the previous one
function Differ {
newArchive=$(borg list :: -P $1 --last 2 --format {name}{NL})
borg diff ::$newArchive
}
# Backup all of /home except a few excluded directories and files
echo $'\nCreating St33v\'s archive'
borg create -v --stats --compression auto,lzma,6 \
::'{hostname}-{user}-{now:%Y%m%dT%H%M}' \
/home/st33v \
/var/log/pacman.log \
/etc/systemd/system \
--exclude '/home/st33v/.cache' \
--exclude '/home/st33v/.local' \
--exclude '/home/$USER/cargo' \
--exclude '/home/st33v/.dropbox' \
--exclude '/home/st33v/.dropbox-dist' \
--exclude '/home/st33v/.config' \
--exclude '/home/st33v/.mozilla' \
--exclude '/home/st33v/.*' \
--exclude '*.img' \
--exclude '*.iso'
Differ cr4y
# Backup olho
echo $'\nCreating Image archive'
borg create -v --stats --compression none \
::'olho-{now:%Y%m%dT%H%M}' /mnt/olho
# Route the normal process logging to journalctl
2>&1
Differ olho
backup_exit=$?
# Prune the repo of extra backups
echo $'\nPruning repository'
borg prune --stats \
--keep-within 3d \
--keep-daily 14 \
--keep-weekly 8 \
--keep-monthly 12 \
--keep-yearly -1 \
::
prune_exit=$?
# Include the remaining device capacity in the log
echo $(df -hl | grep --color=never /mnt/bak)
# borg list :: --format {name:40}{start}{NL} --sort-by name,timestamp
# use highest exit code as global exit code
global_exit=$(( backup_exit > prune_exit ? backup_exit : prune_exit ))
if [ ${global_exit} -eq 0 ]; then
echo "Backup and Prune finished successfully"
elif [ ${global_exit} -eq 1 ]; then
echo "Backup ($backup_exit) and/or Prune ($prune_exit) finished with warnings"
else
echo "Backup ($backup_exit) and/or Prune ($prune_exit) finished with errors"
fi
exit ${global_exit}
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