update io::SubDevice constructor

src/io/devices/Device.cpp

@@ -0,0 +1,16 @@
+#include "Device.hpp"
+
+#include "../io.hpp"
+
+using namespace io;
+
+SubDevice::SubDevice(
+    std::shared_ptr<Device> parent,
+    const std::string& path,
+    bool createDirectory
+)
+    : parent(std::move(parent)), root(path) {
+    if (createDirectory && !this->parent->exists(path)) {
+        this->parent->mkdirs(path);
+    }
+}

src/io/devices/Device.hpp

@@ -28,8 +28,11 @@ namespace io {
 
     class SubDevice : public Device {
     public:
-        SubDevice(std::shared_ptr<Device> parent, const std::string& path)
+        SubDevice(
-            : parent(std::move(parent)), root(path) {}
+            std::shared_ptr<Device> parent,
+            const std::string& path,
+            bool createDirectory = true
+        );
 
         std::filesystem::path resolve(std::string_view path) override {
             return parent->resolve((root / path).pathPart());