Refactor: Rename NanoKVM to BatchuKVM and update server URL

server/utils/permission.go

@@ -0,0 +1,48 @@
+package utils
+
+import "os"
+
+func HasPermission(filePath string, perm os.FileMode) (bool, error) {
+	fileInfo, err := os.Stat(filePath)
+	if err != nil {
+		return false, err
+	}
+
+	mode := fileInfo.Mode().Perm()
+	if mode&perm == perm {
+		return true, nil
+	}
+
+	return false, nil
+}
+
+func AddPermission(filePath string, perm os.FileMode) error {
+	fileInfo, err := os.Stat(filePath)
+	if err != nil {
+		return err
+	}
+
+	mode := fileInfo.Mode() | perm
+	err = os.Chmod(filePath, mode)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func EnsurePermission(filePath string, perm os.FileMode) error {
+	hasPerm, err := HasPermission(filePath, perm)
+	if err != nil {
+		return err
+	}
+
+	if !hasPerm {
+		err = AddPermission(filePath, perm)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}