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util.go
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util.go
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// Copyright 2022 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package meta
import (
"context"
"fmt"
"github.com/pingcap/tiflow/engine/pkg/dbutil"
"github.com/pingcap/tiflow/engine/pkg/meta/model"
"github.com/pingcap/tiflow/pkg/errors"
)
// CreateSchemaIfNotExists creates a db schema if not exists
func CreateSchemaIfNotExists(ctx context.Context, storeConf model.StoreConfig) error {
schema := storeConf.Schema
// clear the schema to open a connection without any schema
storeConf.Schema = ""
dsn, err := model.GenerateDSNByParams(&storeConf, nil)
if err != nil {
return err
}
db, err := dbutil.NewSQLDB("mysql", dsn, nil /*DBConfig*/)
if err != nil {
return nil
}
defer db.Close()
query := fmt.Sprintf("CREATE DATABASE if not exists %s", schema)
_, err = db.ExecContext(ctx, query)
if err != nil {
return errors.ErrMetaOpFail.Wrap(err)
}
return nil
}