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dex/storage/sql/sqlite.go
Salman Ahmed e1f3bfe418 storage/sql: use only one sqlite3 connection
Signed-off-by: Salman Ahmed <salman.ahmed@weidmueller.com>
2021-07-22 14:07:37 +02:00

52 lines
1.1 KiB
Go

// +build cgo
package sql
import (
"database/sql"
"fmt"
sqlite3 "github.com/mattn/go-sqlite3"
"github.com/dexidp/dex/pkg/log"
"github.com/dexidp/dex/storage"
)
// SQLite3 options for creating an SQL db.
type SQLite3 struct {
// File to
File string `json:"file"`
}
// Open creates a new storage implementation backed by SQLite3
func (s *SQLite3) Open(logger log.Logger) (storage.Storage, error) {
conn, err := s.open(logger)
if err != nil {
return nil, err
}
return conn, nil
}
func (s *SQLite3) open(logger log.Logger) (*conn, error) {
db, err := sql.Open("sqlite3", s.File)
if err != nil {
return nil, err
}
// always allow only one connection to sqlite3, any other thread/go-routine
// attempting concurrent access will have to wait
db.SetMaxOpenConns(1)
errCheck := func(err error) bool {
sqlErr, ok := err.(sqlite3.Error)
if !ok {
return false
}
return sqlErr.ExtendedCode == sqlite3.ErrConstraintPrimaryKey
}
c := &conn{db, &flavorSQLite3, logger, errCheck}
if _, err := c.migrate(); err != nil {
return nil, fmt.Errorf("failed to perform migrations: %v", err)
}
return c, nil
}