add new tool to generate default data of root.nf7

CMakeLists.txt

@@ -7,6 +7,7 @@ project(nf7 CXX)
 option(NF7_STATIC "link all libs statically" ON)
 
 set(NF7_GENERATED_INCLUDE_DIR "${PROJECT_BINARY_DIR}/include/generated")
+file(MAKE_DIRECTORY "${NF7_GENERATED_INCLUDE_DIR}")
 
 set(CMAKE_CXX_STANDARD          20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
@@ -20,6 +21,7 @@ set(NF7_CXX_FLAGS
 )
 
 add_subdirectory(thirdparty EXCLUDE_FROM_ALL)
+add_subdirectory(tool)
 
 
 # ---- application ----
@@ -59,3 +61,14 @@ target_link_libraries(nf7
     source_location
     yas
 )
+
+# ---- resource compile ----
+set(NF7_DEFAULT_ROOT_INC "${NF7_GENERATED_INCLUDE_DIR}/root.nf7.inc")
+add_custom_command(
+  OUTPUT ${NF7_DEFAULT_ROOT_INC}
+  DEPENDS nf7-init
+  COMMAND $<TARGET_FILE:nf7-init> > ${NF7_DEFAULT_ROOT_INC}
+  COMMENT "generating root.nf7..."
+  VERBATIM
+)
+target_sources(nf7 PRIVATE ${NF7_DEFAULT_ROOT_INC})

tool/CMakeLists.txt

@@ -0,0 +1,3 @@
+add_executable(nf7-init)
+target_link_libraries(nf7-init PRIVATE yas)
+target_sources(nf7-init PRIVATE init.cc)

tool/init.cc

@@ -0,0 +1,56 @@
+#include <cassert>
+#include <functional>
+#include <fstream>
+#include <iostream>
+#include <map>
+#include <string>
+
+#include <yas/serialize.hpp>
+#include <yas/types/std/map.hpp>
+#include <yas/types/std/string.hpp>
+
+
+using namespace std::literals;
+
+
+using Ar = yas::binary_oarchive<yas::mem_ostream>;
+using L  = std::function<void(void)>;
+
+namespace yas::detail {
+template <size_t F>
+struct serializer<
+    type_prop::not_a_fundamental,
+    ser_case::use_internal_serializer,
+    F,
+    L> {
+ public:
+  static Ar& save(Ar& ar, const L& f) {
+    f();
+    return ar;
+  }
+};
+}
+
+template <typename... Args>
+L Write(Ar& ar, Args&&... args) {
+  return [...args = std::forward<Args>(args), &ar]() mutable {
+   ar(std::forward<Args>(args)...);
+  };
+}
+int main(void) {
+  yas::mem_ostream os;
+  Ar ar(os);
+
+  ar("Dir"s);
+  ar(std::map<std::string, L> {
+    { "home"s, Write(ar, "Dir"s, std::map<std::string, L> {}, false) },
+  }, false);
+
+  const auto buf = os.get_shared_buffer();
+  for (size_t i = 0; i < buf.size;) {
+    for (size_t j = 0; j < 32 && i < buf.size; ++j, ++i) {
+      std::cout << static_cast<int>(buf.data.get()[i]) << ',';
+    }
+  }
+  std::cout << std::endl;
+}