option.go

@@ -1,9 +1,26 @@
 package lite
 
-type Option func(d *database)
+import "errors"
+
+var (
+	ErrBadFilename error = errors.New("database filename cannot be empty")
+)
+
+type Option func(d *database) error
 
 func WithFile(name string) Option {
-	return func(d *database) {
+	return func(d *database) error {
+		if name == "" {
+			return ErrBadFilename
+		}
 		d.file = name
+		return nil
+	}
+}
+
+func WithPath(path string) Option {
+	return func(d *database) error {
+		d.path = path
+		return nil
 	}
 }

sqlite.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"path"
 
 	"github.com/jmoiron/sqlx"
 	_ "github.com/ncruces/go-sqlite3/driver"
@@ -12,6 +13,7 @@ import (
 
 type database struct {
 	file   string
+	path   string
 	sqlite *sqlx.DB
 }
 
@@ -34,7 +36,12 @@ func New(opts ...Option) (Database, error) {
 		opt(db)
 	}
 
-	slite, err := sqlx.Open("sqlite3", fmt.Sprintf("file:%s", db.file))
+	filePath := db.file
+	if db.path != "" {
+		filePath = path.Join(db.path, db.file)
+	}
+
+	slite, err := sqlx.Open("sqlite3", fmt.Sprintf("file:%s", filePath))
 	if err != nil {
 		return nil, err
 	}