#!/bin/bash

: "${SOURCE:?Please provide a SOURCE which should be a database url}"
: "${TARGET:?Please provide a TARGET which should be a database url}"

dump_path=dump

if [ -d "$dump_path" ]; then
  echo "/$dump_path already exists. Please remove ./$dump_path before running this script."
  exit 1
fi

echo "Dumping database from $SOURCE to $TARGET via $dump_path"

pg_dump \
  --clean --if-exists \
  --file ${dump_path} \
  --format=directory \
  --jobs 5 \
  --no-acl \
  --no-owner \
  ${SOURCE}

echo "Restoring database from $dump_path to $TARGET"
pg_restore \
  --clean --if-exists \
  --dbname=${TARGET} \
  --format=directory \
  --jobs=5 \
  --no-acl \
  --no-owner \
  $dump_path