impr: Bundle default magic file with application

plugins/builtin/CMakeLists.txt

@@ -2,6 +2,11 @@ cmake_minimum_required(VERSION 3.16)
 
 include(ImHexPlugin)
 
+find_file(DEFAULT_MAGIC_FILE_PATH magic.mgc HINTS ${MAGIC_INCLUDE_DIRS}/../share/misc)
+if (DEFAULT_MAGIC_FILE_PATH)
+    add_romfs_resource(${DEFAULT_MAGIC_FILE_PATH} auto_extract/magic/magic.mgc)
+endif ()
+
 add_imhex_plugin(
     NAME
         builtin
@@ -36,6 +41,7 @@ add_imhex_plugin(
         source/content/file_handlers.cpp
         source/content/project.cpp
         source/content/achievements.cpp
+        source/content/file_extraction.cpp
 
         source/content/providers/file_provider.cpp
         source/content/providers/gdb_provider.cpp

plugins/builtin/source/content/file_extraction.cpp

@@ -0,0 +1,26 @@
+#include <hex/helpers/fs.hpp>
+
+#include <wolv/io/file.hpp>
+#include <romfs/romfs.hpp>
+
+namespace hex::plugin::builtin {
+
+    void extractBundledFiles() {
+        for (const auto &romfsPath : romfs::list("auto_extract")) {
+            for (const auto &imhexPath : fs::getDataPaths()) {
+                wolv::io::File file(imhexPath, wolv::io::File::Mode::Create);
+
+                if (!file.isValid())
+                    continue;
+
+                auto data = romfs::get(romfsPath).span<u8>();
+                file.writeBuffer(data.data(), data.size());
+
+                if (file.getSize() == data.size())
+                    break;
+            }
+
+        }
+    }
+
+}

plugins/builtin/source/plugin_builtin.cpp

@@ -47,6 +47,8 @@ namespace hex::plugin::builtin {
 
     void handleBorderlessWindowMode();
 
+    void extractBundledFiles();
+
 }
 
 IMHEX_PLUGIN_SUBCOMMANDS() {
@@ -107,6 +109,8 @@ IMHEX_PLUGIN_SETUP("Built-in", "WerWolv", "Default ImHex functionality") {
     registerMainMenuEntries();
 
     handleBorderlessWindowMode();
+
+    extractBundledFiles();
 }
 
 // This is the default plugin