120 lines
3.4 KiB
Bash
Executable File
120 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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# Set mode
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if [ "$1" = "auto" ]; then
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mode="auto"
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else
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mode="man"
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fi
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# Read environment variables
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source "${HOME}/.borg-env"
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# some helpers and error handling:
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info() {
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printf "\n%s %s\n\n" ${DATE} "$*" >&2;
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echo "$( date ) BORGBACKUP $* " >> /var/log/backup.log;
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}
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# function to send ntfy messages
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ntfy() {
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local message="$1"
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local priority="$2"
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local ntfy_url="${NTFY_URL}"
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local ntfy_token="${NTFY_TOKEN}"
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if [ -z "${ntfy_url}" ]; then
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info "NTFY_URL is not set. Cannot send notification."
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return
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fi
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# construct curl command with or without token
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if [ -z "${ntfy_token}" ]; then
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local curl_command="curl -H 'Priority: ${priority}' -d '${message}' '${ntfy_url}'"
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else
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local curl_command="curl -H 'Authorization: Bearer ${ntfy_token}' -H 'Priority: ${priority}' -d '${message}' '${ntfy_url}'"
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fi
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# send curl and log result
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if eval "${curl_command}"; then
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info "Notification sent successfully: ${message}"
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else
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info "Failed to send notification: ${message}"
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fi
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}
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trap 'echo $( date ) Backup interrupted >&2; exit 2' INT TERM
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info "Starting backup"
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# Backup the most important directories into an archive named after
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# the machine this script is currently running on:
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/usr/local/bin/borg create \
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--verbose \
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--filter AME \
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--list \
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--stats \
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--show-rc \
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--compression lz4 \
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--exclude-caches \
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\
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::"${mode}-{hostname}-{now}" \
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"${BORG_TARGETS[@]}" \
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backup_exit=$?
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if [ $mode = "auto" ]; then
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info "Pruning repository"
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# Use the `prune` subcommand to maintain 7 daily, 4 weekly and 6 monthly
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# archives of THIS machine. The '{hostname}-' prefix is very important to
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# limit prune's operation to this machine's archives and not apply to
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# other machines' archives also:
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/usr/local/bin/borg prune \
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--list \
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--glob-archives 'auto-*' \
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--show-rc \
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--keep-daily 7 \
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--keep-weekly 4 \
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--keep-monthly 6 \
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--keep-yearly 2 \
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prune_exit=$?
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# actually free repo disk space by compacting segments
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info "Compacting repository"
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/usr/local/bin/borg compact
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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=$(( compact_exit > global_exit ? compact_exit : global_exit ))
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else
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global_exit=$(( compact_exit > global_exit ? compact_exit : global_exit ))
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fi
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if [ ${global_exit} -eq 0 ]; then
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info "Borg Backups finished successfully"
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if [ "${NTFY}" = "true" ]; then
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ntfy "${HOSTNAME}: Borg Backups finished successfully" "low"
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fi
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elif [ ${global_exit} -eq 1 ]; then
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info "Borg Backups finished with warnings"
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if [ "${NTFY}" = "true" ]; then
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ntfy "${HOSTNAME}: Borg Backups finished with warnings" "urgent"
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fi
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else
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info "Borg Backups finished with errors"
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if [ "${NTFY}" = "true" ]; then
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ntfy "${HOSTNAME}: Borg Backups finished with errors" "urgent"
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fi
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fi
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exit ${global_exit}
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