Dashing.Console.Program.GenerateMigrationScript C# (CSharp) Method

        private static string GenerateMigrationScript(
            ConnectionStringSettings connectionStringSettings,
            ReverseEngineerSettings reverseEngineerSettings,
            IConfiguration configuration,
            bool naive,
            out IEnumerable<string> warnings,
            out IEnumerable<string> errors) {
            // fetch the from state
            var dialectFactory = new DialectFactory();
            var dialect = dialectFactory.Create(connectionStringSettings.ToSystem());
            var factory = DbProviderFactories.GetFactory(connectionStringSettings.ProviderName);

            // create database if not exists
            CreateDatabaseIfNotExists(connectionStringSettings, factory, dialect);

            DatabaseSchema schema;
            using (new TimedOperation("-- Reading database contents...")) {
                var databaseReader = new DatabaseReader(connectionStringSettings.ConnectionString, connectionStringSettings.ProviderName);
                schema = databaseReader.ReadAll();
            }

            IEnumerable<IMap> fromMaps;
            using (new TimedOperation("-- Reverse engineering...")) {
                Console.WriteLine();
                var engineer = new Engineer(reverseEngineerSettings.GetExtraPluralizationWords().Union(configuration.Maps.Select(m => new KeyValuePair<string, string>(m.Type.Name, m.Table)))); // we use our configuration to inform us as to the correct naming of tables
                fromMaps = engineer.ReverseEngineer(schema, dialect, reverseEngineerSettings.GetTablesToIgnore(), consoleAnswerProvider, false);
                Console.Write("-- ");
            }

            using (var connection = factory.CreateConnection()) {
                connection.ConnectionString = connectionStringSettings.ConnectionString;
                // set up migrator
                IMigrator migrator;
                if (naive) {
                    throw new NotSupportedException("The Naive Migrator is no longer supported");
                }
                migrator = new Migrator(
                    dialect,
                    new CreateTableWriter(dialect),
                    new AlterTableWriter(dialect),
                    new DropTableWriter(dialect),
                    new StatisticsProvider(connection, dialect));

                // run the migrator
                string script;
                using (new TimedOperation("-- Generating diff...")) {
                    script = migrator.GenerateSqlDiff(
                        fromMaps,
                        configuration.Maps,
                        consoleAnswerProvider,
                        new ConsoleLogger(isVerbose),
                        reverseEngineerSettings.GetIndexesToIgnore(),
                        reverseEngineerSettings.GetTablesToIgnore(),
                        out warnings,
                        out errors);

                    // TODO: do things with warnings and errors
                    return script;
                }
            }
        }