#!/bin/bash
set -e
echo 'Testing whether migrations are consistent with models'

new_auto_named_migrations=$(./manage.py showmigrations | grep -v '0004_auto_20160423_0400\|0005_auto_20160727_2333\|0052_auto_fix_realmalias_realm_nullable\|0089_auto_20170710_1353\|0002_auto_20150110_0810\|0003_auto_20150817_1733\|0004_auto_20160205_1827\|0005_auto_20160224_0450' | grep "_auto_20" || true)
# We check if there is any new migration with the 'auto' keyword in its name and
# cause a error to rename to a more meaningful name
if [ "$new_auto_named_migrations" != "" ]; then
    echo "ERROR: New migrations with unclear automatically generated names."
    echo "Please rename these migrations to have readable names:"
    echo
    echo "$new_auto_named_migrations" | sed 's/\[[x ]\] /  /'
    echo
    echo 'See https://zulip.readthedocs.io/en/latest/subsystems/schema-migrations.html for advice.'
    echo
    exit 1
fi

if ! ./manage.py makemigrations --check --dry-run; then
    echo
    echo 'ERROR: Migrations are not consistent with models!  Fix with `./tools/renumber-migrations`.'
    echo 'See https://zulip.readthedocs.io/en/latest/subsystems/schema-migrations.html for details.'
    echo
    exit 1
else
    echo "Success!  Migrations are consistent with models."
fi