dynanically set the app version during compile time

Author: tomdaley92

Core/Chip8.h

@@ -6,7 +6,12 @@
 #include "Input.h"
 #include "Audio.h"
 
-#define APPNAME_VERSION "Kiwi8 v1.03"
+// APPNAME_VERSION is defined by the compiler via -DAPPNAME_VERSION="..."
+// Falls back to generic name if not defined (shouldn't happen in normal builds)
+#ifndef APPNAME_VERSION
+#define APPNAME_VERSION "Kiwi8"
+#endif
+
 #define MEM_SIZE 4096
 #define NUM_REGISTERS 16
 #define STACK_DEPTH 16

MacOS/makefile

@@ -1,5 +1,18 @@
+APP_NAME = Kiwi8
+
+# Auto-detect version: use GITHUB_REF_NAME if set (CI), else git describe, else git branch
+ifeq ($(origin GITHUB_REF_NAME), environment)
+VERSION := $(GITHUB_REF_NAME)
+else
+VERSION := $(shell git describe --tags --exact-match 2>/dev/null || git rev-parse --abbrev-ref HEAD 2>/dev/null || echo "unknown")
+endif
+
+APP_NAME_VERSION = $(APP_NAME) $(VERSION)
+APP_BUNDLE = release/$(APP_NAME).app
+APP_EXE = $(APP_BUNDLE)/Contents/MacOS/$(APP_NAME)
+
 CC = clang++
-CFLAGS = -std=c++17 -g -Wall -mmacosx-version-min=11.0 -arch x86_64 -arch arm64 -MMD -MP
+CFLAGS = -std=c++17 -g -Wall -mmacosx-version-min=11.0 -arch x86_64 -arch arm64 -MMD -MP -DAPPNAME_VERSION='"Kiwi8 $(VERSION)"'
 LFLAGS = -mmacosx-version-min=11.0
 INCS = -I$(CURDIR)/frameworks/sdl/include/ \
 	   -I$(CURDIR)/../frameworks/imgui/
@@ -23,10 +36,6 @@ MACOS_SRCS = src/file_dialog.mm
 OBJS = $(notdir $(CORE_SRCS:.cc=.o)) $(notdir $(IMGUI_SRCS:.cpp=.o)) $(notdir $(MACOS_SRCS:.mm=.o))
 DEPS = $(OBJS:.o=.d)
 
-APP_NAME = Kiwi8
-APP_BUNDLE = release/$(APP_NAME).app
-APP_EXE = $(APP_BUNDLE)/Contents/MacOS/$(APP_NAME)
-
 # Include auto-generated dependency files (must be before targets)
 -include $(DEPS)
 

README.txt

@@ -1,6 +1,6 @@
-Kiwi8 v1.03
+Kiwi8
 
-A cross-platform Chip-8 interpreter written 
+A cross-platform Chip-8 interpreter written
 in C++ using SDL2, ImGui, and OpenGL.
 
 For more information about the Chip-8 visit:
@@ -12,8 +12,8 @@ and MacOS (.exe file and .app bundle respectively)
 You can download them here:
 https://github.com/tomdaley92/Kiwi8/releases
 
-The interpreter passes "SC Test.ch8" up to 
-error 23, which is the first SCHIP opcode 
+The interpreter passes "SC Test.ch8" up to
+error 23, which is the first SCHIP opcode
 encountered.
 
 ROM Compatibility is discussed here:
@@ -40,21 +40,21 @@ mute                        m
 How to compile:
 
     Windows:
-        Microsoft's Visual C++ Build Tools 
-        (vcvarsall/cl/nmake) are assumed to be 
+        Microsoft's Visual C++ Build Tools
+        (vcvarsall/cl/nmake) are assumed to be
         installed and added to PATH.
-        1) Open the command prompt and navigate 
+        1) Open the command prompt and navigate
            to the Kiwi8/Windows directory.
-        2) Type "vcvarsall x86" to load the 
+        2) Type "vcvarsall x86" to load the
            windows development environment.
         3) Type "nmake".
 
     MacOS:
-        Apple's Xcode command line tools 
-        (clang++/make/install_name_tool) 
-        are assumed to be installed and 
+        Apple's Xcode command line tools
+        (clang++/make/install_name_tool)
+        are assumed to be installed and
         added to PATH.
-        1) Open the terminal and navigate 
+        1) Open the terminal and navigate
            to the Kiwi8/MacOS directory.
         2) Type "make".
 

Windows/makefile

@@ -1,5 +1,30 @@
+APP_NAME = Kiwi8
+
+# Auto-detect version: use GITHUB_REF_NAME if set (CI), else git describe, else git branch
+!IFNDEF GITHUB_REF_NAME
+# Try git describe for exact tag match
+!IF [git describe --tags --exact-match > .version.tmp 2>nul] == 0
+!INCLUDE .version.tmp
+# Try git branch name
+!ELSE IF [git rev-parse --abbrev-ref HEAD > .version.tmp 2>nul] == 0
+!INCLUDE .version.tmp
+!ELSE
+VERSION = unknown
+!ENDIF
+# Clean up temp file
+!IF [del .version.tmp 2>nul]
+!ENDIF
+!ELSE
+VERSION = $(GITHUB_REF_NAME)
+!ENDIF
+
+APP_NAME_VERSION = $(APP_NAME) $(VERSION)
+APP_EXE = $(APP_NAME).exe
+APP_PDB = $(APP_NAME).pdb
+APP_RES = $(APP_NAME).res
+
 CC = CL
-CFLAGS = /MD /nologo /W3 /w44996
+CFLAGS = /MD /nologo /W3 /w44996 /DAPPNAME_VERSION=\"$(APP_NAME_VERSION)\"
 LFLAGS = /link \
 		 /LIBPATH:frameworks\sdl\lib \
 		 /ENTRY:mainCRTStartup
@@ -31,11 +56,6 @@ OBJS = Audio.obj Chip8.obj Display.obj Gui.obj imgui_impl_sdl.obj Input.obj \
        imgui_draw.obj file_dialog.obj
 
 
-APP_NAME = Kiwi8
-APP_EXE = $(APP_NAME).exe
-APP_PDB = $(APP_NAME).pdb
-APP_RES = $(APP_NAME).res
-
 # Default target
 all: debug\$(APP_EXE) release\$(APP_EXE)