work on dynamic extensions

include/grbc/ext.h

@@ -5,12 +5,28 @@
 #define GRBC_EXT_pkg_config_NAME "GRBC_EXT_pkg_config"
 #define GRBC_EXT_profiles_NAME "GRBC_EXT_profiles"
 #define GRBC_EXT_easy_NAME "GRBC_EXT_easy"
+#define GRBC_EXT_dynamic_extensions_NAME "GRBC_EXT_dynamic_extensions"
 
+/// Called when the extension is loaded
 typedef void (*EXT_HookInit)(sol::state &lua);
 
+/// Called when the build completes
+typedef void (*EXT_HookBuildFinish)();
+
+/// Called everytime that a file is processed
+typedef void (*EXT_HookProcessFile)(const std::string &file);
+
+/// Called when the extension is invoked from the command line
+typedef void (*EXT_HookInvoke)();
+
 struct Extension {
     std::string name;
     bool loaded = false;
 
     EXT_HookInit hook_init = nullptr;
-};
+    EXT_HookBuildFinish build_finish = nullptr;
+    EXT_HookProcessFile process_file = nullptr;
+    EXT_HookInvoke invoke = nullptr;
+};
+
+void grbc_ext_process_file(const std::string &file);

include/grbc/ext_dynamic.h

@@ -0,0 +1,7 @@
+#pragma once
+#include "grbc/ext.h"
+
+/**
+ * Get the grbc dynamic extension
+ */
+Extension grbc_dynamic();