Add version system

.gitignore

@@ -1,2 +1,3 @@
 .vs/
 build/
+version.h

WinChat/PreBuild.bat

@@ -0,0 +1,48 @@
+@echo off
+
+echo [Pre Build] Startup
+
+::Set Version
+echo [Pre Build] Setting version...
+
+::First make sure git is in the path
+where git >nul 2>&1
+if %errorlevel% neq 0 goto noGit
+goto yesGit
+
+:noGit
+echo [Pre Build] Error: git not found on PATH!
+exit 1
+
+::We have git on the command line, so set the version string
+:yesGit
+git describe HEAD > temp1
+git branch --show-current > temp2
+set /p commit= < temp1
+set /p branch= < temp2
+del temp1
+del temp2
+
+::If the current branch is stable, don't include it in the version string
+if "%branch%" == "stable" goto noBranch
+
+set version=%commit%+%branch%
+goto testOutput
+
+:noBranch
+set version=%commit%
+
+::Don't touch the version file if it's already up to date
+:testOutput
+set /p oldVersion= < src\version.h
+if "%oldVersion%" == "#define APPVERSION "%version%"" goto sameVersion
+
+echo #define APPVERSION "%version%"> src\version.h
+goto continue
+
+:sameVersion
+echo [Pre Build] Same version
+
+:continue
+echo [Pre Build] Exit
+exit

WinChat/WinChat.vcxproj

@@ -64,6 +64,9 @@
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
+    <PreBuildEvent>
+      <Command>PreBuild.bat</Command>
+    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
@@ -82,6 +85,9 @@
       <OptimizeReferences>true</OptimizeReferences>
       <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
+    <PreBuildEvent>
+      <Command>PreBuild.bat</Command>
+    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="src\main.cpp" />

WinChat/src/main.cpp

@@ -1,7 +1,11 @@
 #include <iostream>
 
+#include "version.h"
+
+#define APPNAME "WinChat"
+
 int main(int argc, char* argv[]) {
-	std::printf("WinChat\n");
+	std::printf(APPNAME " " APPVERSION "\n");
 
 	std::cin.get();
 	return EXIT_SUCCESS;