archive

firefly/postgres/backup.sh

@@ -0,0 +1,21 @@
+#! /bin/bash
+
+set -e
+set -x
+service postgresql start
+thisback="/mnt/back/$(date -u +%Y%m%d%H%M%S).dump"
+rm -rf "$thisback" || true
+mkdir -p "$(dirname "$thisback")"
+pg_dump postgres://ffly:pwd@localhost/fireflyiii --clean > "$thisback"
+service postgresql start
+n=$(ls /mnt/back | wc -l)
+if ((n<=25)); then
+   echo "No old backups to purge" >&2
+   exit 0
+fi
+((m=n-25))
+stale=($(find /mnt/back/ -mindepth 1 -maxdepth 1 | sort | head -n $m))
+echo "Purging: rm -rf ${stale[@]}" >&2
+rm -rf "${stale[@]}"
+remaining=($(find /mnt/back/ -mindepth 1 -maxdepth 1 | sort))
+echo "Remains: ${remaining[@]}" >&2