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introduce a new option: backup --delete-oldest, which deletes the N oldest backups, and keeps the last complete backup.

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Philipp Dreimann 2025-11-02 15:43:16 +01:00 • committed by DerLinkman
parent 04543a179b
commit 37efa2b2c6
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1 changed files with 19 additions and 2 deletions
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21
helper-scripts/backup_and_restore.sh
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@ -11,8 +11,8 @@ if [[ ! ${1} =~ (backup|restore) ]]; then
exit 1
fi
if [[ ${1} == "backup" && ! ${2} =~ (crypt|vmail|redis|rspamd|postfix|mysql|all|--delete-days) ]]; then
echo "Second parameter needs to be 'vmail', 'crypt', 'redis', 'rspamd', 'postfix', 'mysql', 'all' or '--delete-days'"
if [[ ${1} == "backup" && ! ${2} =~ (crypt|vmail|redis|rspamd|postfix|mysql|all|--delete-days|--delete-oldest) ]]; then
echo "Second parameter needs to be 'vmail', 'crypt', 'redis', 'rspamd', 'postfix', 'mysql', 'all', '--delete-days' or '--delete-oldest'"
exit 1
fi
@ -221,6 +221,23 @@ function backup() {
echo "Parameter of --delete-days is not a number."
fi
;;
--delete-oldest)
shift
if [[ "${1}" =~ ^[0-9]+$ ]]; then
TOTAL=$(find ${BACKUP_LOCATION}/mailcow-* -maxdepth 0 -type d 2>/dev/null | wc -l)
if [[ ${TOTAL} -eq 0 ]]; then
echo "No backups found to delete."
elif [[ ${TOTAL} -eq 1 ]]; then
echo "Only 1 backup exists, keeping it (minimum 1 backup required)."
else
TO_DELETE=$((${1} < ${TOTAL} ? ${1} : ${TOTAL} - 1))
echo "Found ${TOTAL} backups, deleting ${TO_DELETE} oldest (keeping at least 1)."
find ${BACKUP_LOCATION}/mailcow-* -maxdepth 0 -type d -printf '%T+ %p\n' | sort | head -n ${TO_DELETE} | cut -d' ' -f2- | xargs -r rm -rvf
fi
else
echo "Parameter of --delete-oldest is not a number."
fi
;;
esac
shift
done