(feat): Introduce caching for FileSystemServiceFactory

internal/service/filesystem.go

@@ -25,23 +25,29 @@ type FileSystemServiceFactory interface {
 
 type LinuxFileSystemServiceFactory struct {
 	RunnerFactory utils.RunnerFactory
+	services      map[model.FileSystem]FileSystemService
 }
 
 func NewLinuxFileSystemServiceFactory(rc utils.RunnerFactory) *LinuxFileSystemServiceFactory {
 	return &LinuxFileSystemServiceFactory{
 		RunnerFactory: rc,
+		services:      map[model.FileSystem]FileSystemService{},
 	}
 }
 
 func (fsf *LinuxFileSystemServiceFactory) Select(fs model.FileSystem) (FileSystemService, error) {
-	var fss FileSystemService
-	switch fs {
-	case model.Ext4:
-		fss = NewExt4Service(fsf.RunnerFactory)
-	case model.Xfs:
-		fss = NewXfsService(fsf.RunnerFactory)
-	case model.Unformatted:
-		return nil, fmt.Errorf("🔴 An unsupported filesystem was encountered")
+	// Check if the instance is already in the services cache
+	fss, exists := fsf.services[fs]
+	if !exists {
+		switch fs {
+		case model.Ext4:
+			fss = NewExt4Service(fsf.RunnerFactory)
+		case model.Xfs:
+			fss = NewXfsService(fsf.RunnerFactory)
+		case model.Unformatted:
+			return nil, fmt.Errorf("🔴 An unsupported filesystem was encountered")
+		}
+		fsf.services[fs] = fss
 	}
 	return fss, nil
 }