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#!/bin/bash
export PGUSER=postgres
pg_databases() {
echo "SELECT datname FROM pg_catalog.pg_database" | psql -At
}
dbs=$(pg_databases)
mkdir -p /var/backups/pg/
for db in $dbs; do
if [[ "$db" == "template"* || "$db" == "postgres" ]]; then
continue
fi
for exclude_db in $exclude_dbs; do
if [ "$exclude_db" == "$db" ]; then
echo "No backup for database $db as it is listed in 'exclude-dbs'."
continue 2
fi
done
dst=/var/backups/pg/$db.sql.gz
(( start = SECONDS ))
echo "Dumping database $db..." >&2
pg_dump -Ox "$db" | gzip --rsyncable > "$dst.inprogress"
errlvl="$?"
## Atomic replace
(( elapsed = SECONDS - start ))
if [ "$errlvl" != "0" ]; then
echo " !! Error when dumping database $db." >&2
else
echo " ..dumped $db to $dst ($(du -sh "$dst" | cut -f 1) in ${elapsed}s)" >&2
fi
mv "$dst.inprogress" "$dst"
done