evcc-io/server/db/db.go
2025-11-25 15:03:28 +01:00

64 lines
1.2 KiB
Go

package db
import (
"fmt"
"os"
"path/filepath"
"strings"
"github.com/evcc-io/evcc/util"
"github.com/glebarez/sqlite"
"github.com/mitchellh/go-homedir"
"gorm.io/gorm"
)
var (
Instance *gorm.DB
FilePath string // Store the actual SQLite file path
)
func New(driver, dsn string) (*gorm.DB, error) {
var dialect gorm.Dialector
switch driver {
case "sqlite":
file, err := homedir.Expand(dsn)
if err != nil {
return nil, err
}
// Store the expanded file path for later use
FilePath = file
if err := os.MkdirAll(filepath.Dir(file), 0700); err != nil {
return nil, err
}
util.NewLogger("main").INFO.Println("using sqlite database:", file)
// avoid busy errors
dialect = sqlite.Open(file + "?_pragma=busy_timeout(5000)")
// case "postgres":
// dialect = postgres.Open(dsn)
// case "mysql":
// dialect = mysql.Open(dsn)
default:
return nil, fmt.Errorf("invalid database type: %s not in [sqlite]", driver)
}
return gorm.Open(dialect, &gorm.Config{
Logger: &Logger{util.NewLogger("db")},
})
}
func NewInstance(driver, dsn string) (err error) {
Instance, err = New(strings.ToLower(driver), dsn)
return
}
func Close() error {
db, err := Instance.DB()
if err != nil {
return err
}
return db.Close()
}