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backup-scripts/borg/bin/backup
2026-01-14 13:48:23 -06:00

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#!/usr/bin/env bash
# Check if running as root
if [ "$EUID" -ne 0 ]; then
printf "Error: This script must be run as root (or via sudo).\n"
exit 1
fi
# Load the environment variables directly
if [ -f /opt/borg/etc/borg_environment ]; then
# shellcheck source=/dev/null
source /opt/borg/etc/borg_environment
# Ensure the variables sourced from the file are exported to child processes
export BORG_REPO BORG_PASSPHRASE
else
printf "Error: /opt/borg/etc/borg_environment not found.\n"
exit 1
fi
# Helpers and error handling
info() { printf "\n%s %s\n\n" "$(date)" "$*" >&2; }
trap 'info "Backup interrupted"; exit 2' INT TERM
info "Starting backup for repository: $BORG_REPO"
# 1. Create Archive
borg create \
--verbose \
--filter AME \
--list \
--stats \
--show-rc \
--compression lz4 \
--exclude-caches \
--exclude 'home/*/.cache/*' \
--exclude 'var/tmp/*' \
--exclude 'var/games' \
--exclude 'home/*/Media' \
--progress \
::'{hostname}-{now}' \
/etc \
/home \
/root \
/var \
/opt
backup_exit=$?
# 2. Prune old backups
info "Pruning repository"
borg prune \
--list \
--glob-archives '{hostname}-*' \
--show-rc \
--keep-daily 7 \
--keep-weekly 4 \
--keep-monthly 6
prune_exit=$?
# 3. Compact repository
info "Compacting repository"
borg compact
compact_exit=$?
# Determine final status code
global_exit=$(( backup_exit > prune_exit ? backup_exit : prune_exit ))
global_exit=$(( compact_exit > global_exit ? compact_exit : global_exit ))
if [ "${global_exit}" -eq 0 ]; then
info "Backup, Prune, and Compact finished successfully"
elif [ "${global_exit}" -eq 1 ]; then
info "Backup, Prune, and/or Compact finished with warnings"
else
info "Backup, Prune, and/or Compact finished with errors"
fi
exit "${global_exit}"