more work on backend and moving frags to objs

src/fragment_store/convert_frag_to_obj.cpp

@@ -0,0 +1,36 @@
+#include "./object_store.hpp"
+#include "./backends/filesystem_storage.hpp"
+
+#include <filesystem>
+#include <iostream>
+
+int main(int argc, const char** argv) {
+	if (argc != 3) {
+		std::cerr << "wrong paramter count, do " << argv[0] << " <input_folder> <output_folder>\n";
+		return 1;
+	}
+
+	if (!std::filesystem::is_directory(argv[1])) {
+		std::cerr << "input folder is no folder\n";
+	}
+
+	std::filesystem::create_directories(argv[2]);
+
+	// we are going to use 2 different OS for convineance, but could be done with 1 too
+	ObjectStore2 os_src;
+	ObjectStore2 os_dst;
+
+	backend::FilesystemStorage fsb_src(os_src, argv[1]);
+	backend::FilesystemStorage fsb_dst(os_dst, argv[2]);
+
+	// add message fragment store too (adds meta?)
+
+	// hookup events
+	// perform scan (which triggers events)
+	fsb_dst.scanAsync(); // fill with existing?
+	fsb_src.scanAsync(); // the scan
+
+	// done
+	return 0;
+}
+