--- /dev/null
+#!/bin/bash
+
+PREFIX=$1
+
+sudo -u postgres /usr/bin/pg_dumpall --cluster 8.4/wanna-build | gzip > /org/wanna-build/dumps/dump_${PREFIX}_$(date +%Y.%m.%d-%H:%M:%S).gz
+
+# Expire dumps only on post-trigger saves.
+if [ "$PREFIX" = "post" ]
+then
+ (cd /org/wanna-build/dumps && /org/wanna-build/expire_dumps -d . -f "dump_*")
+fi
+