From 1d7b9260c315f25a1cc960447b70515e8d18df41 Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Sat, 3 Dec 2022 17:25:25 +0100
Subject: [PATCH] Add config.h for version information

---
 kernel/CMakeLists.txt  | 4 ++++
 kernel/src/config.h.in | 6 ++++++
 kernel/src/main.cpp    | 3 ++-
 3 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 kernel/src/config.h.in

diff --git a/kernel/CMakeLists.txt b/kernel/CMakeLists.txt
index e23e42fd..a1c5155d 100644
--- a/kernel/CMakeLists.txt
+++ b/kernel/CMakeLists.txt
@@ -58,6 +58,10 @@ set_target_properties(moon PROPERTIES CXX_STANDARD 20)
 
 target_include_directories(moon PRIVATE ${CMAKE_CURRENT_LIST_DIR}/src)
 
+configure_file(src/config.h.in ${CMAKE_CURRENT_BINARY_DIR}/gen/config.h @ONLY)
+
+target_include_directories(moon PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/gen)
+
 target_link_options(moon PRIVATE LINKER:-T ${CMAKE_CURRENT_LIST_DIR}/moon.ld -nostdlib -nodefaultlibs)
 
 install(FILES "${CMAKE_CURRENT_BINARY_DIR}/moon" DESTINATION ${LUNA_ROOT}/initrd/boot)
\ No newline at end of file
diff --git a/kernel/src/config.h.in b/kernel/src/config.h.in
new file mode 100644
index 00000000..6cbc30ec
--- /dev/null
+++ b/kernel/src/config.h.in
@@ -0,0 +1,6 @@
+#pragma once
+
+#define MOON_VERSION "@CMAKE_PROJECT_VERSION@"
+#define MOON_VERSION_MAJOR "@CMAKE_PROJECT_VERSION_MAJOR@"
+#define MOON_VERSION_MINOR "@CMAKE_PROJECT_VERSION_MINOR@"
+#define MOON_VERSION_PATCH "@CMAKE_PROJECT_VERSION_PATCH@"
\ No newline at end of file
diff --git a/kernel/src/main.cpp b/kernel/src/main.cpp
index bf0cf636..3e5cba2c 100644
--- a/kernel/src/main.cpp
+++ b/kernel/src/main.cpp
@@ -4,6 +4,7 @@
 #include "arch/Serial.h"
 #include "arch/Timer.h"
 #include "boot/Init.h"
+#include "config.h"
 #include "memory/Heap.h"
 #include "memory/MemoryManager.h"
 #include "video/TextConsole.h"
@@ -11,7 +12,7 @@
 
 Result<void> init()
 {
-    kinfoln("Hello, world!");
+    kinfoln("Starting Moon %s", MOON_VERSION);
 
     kinfoln("Current platform: %s", CPU::platform_string());