core-legacy/schema_migration.sh

#!/usr/bin/env bash

sqlite_return=$(sqlite3 core.sqlite "SELECT version_num FROM meta LIMIT 1;" 2>/dev/null);

if ! [[ $sqlite_return =~ ^-?[0-9]+$ ]]
then
  echo "No version number found. Initiating database."
  sqlite_return=0;
fi;

version_num=$sqlite_return;

while [ -f sql/migration_$version_num.sql ]
do
  echo "sql/migration_$version_num.sql";
  sqlite3 core.sqlite < sql/migration_$version_num.sql;
  ((version_num++));
done;

echo "New Schemaversion: $version_num";

if [ $sqlite_return -eq 0 ]
then
  sqlite3 core.sqlite "INSERT INTO meta (version_num) VALUES ($version_num); ";
else
  sqlite3 core.sqlite "UPDATE meta SET version_num=$version_num;";
fi