Check if the db file path dir exists before setting up schema (#99)

server.go

@@ -8,6 +8,7 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"path/filepath"
 	"strings"
 	"time"
 
@@ -55,6 +56,12 @@ func NewServer(opts ...ServerOption) (*Server, error) {
 	if !c.Ephemeral {
 		// Apply migrations if file does not already exist
 		if _, err := os.Stat(c.DatabaseFilePath); os.IsNotExist(err) {
+			// Check if any of the parent dirs are missing
+			dir := filepath.Dir(c.DatabaseFilePath)
+			if _, err := os.Stat(dir); err != nil {
+				return nil, fmt.Errorf("error setting up schema: %w", err)
+			}
+
 			if err := sqlite.SetupSchema(sqlConfig); err != nil {
 				return nil, fmt.Errorf("error setting up schema: %w", err)
 			}