Adds auto detection for visual studio 2019 and 2022.

Author: geo-at-github

Diff for: Build.cmd

@@ -1,18 +1,59 @@
 @echo off
+
+REM Default VS paths to check if no Paths.cmd file exists
+set VISUAL_STUDIO_PATH_0="%programfiles(x86)%\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\msbuild.exe"
+set VISUAL_STUDIO_PATH_1="%programfiles(x86)%\Microsoft Visual Studio\2019\Enterprise\MSBuild\Current\Bin\msbuild.exe"
+set VISUAL_STUDIO_PATH_2="%programfiles(x86)%\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\msbuild.exe"
+set VISUAL_STUDIO_PATH_3="%programfiles(x86)%\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\msbuild.exe"
+
 pushd "%~dp0"
 if exist Debug rd /s /q Debug
 if exist Release rd /s /q Release
 if exist x64 rd /s /q x64
 
-IF NOT EXIST "Paths.cmd" (
-ECHO Please copy "Paths.cmd.template", enter your Visual Studio path and rename it to "Paths.cmd".
-PAUSE
-GOTO exit
+if exist "Paths.cmd" (
+REM Prefer Paths.cmd as Visual Studio path source if it exists.
+call Paths.cmd
+goto build
+) else (
+REM Otherwise try to auto-detect the Visual Studio path.
+if exist %VISUAL_STUDIO_PATH_0% (
+set VISUAL_STUDIO_PATH=%VISUAL_STUDIO_PATH_0%
+goto build
 )
 
-call Paths.cmd
-"%VISUAL_STUDIO_PATH%" /p:Configuration=Release
+if exist %VISUAL_STUDIO_PATH_1% (
+set VISUAL_STUDIO_PATH=%VISUAL_STUDIO_PATH_1%
+goto build
+)
+
+if exist %VISUAL_STUDIO_PATH_2% (
+set VISUAL_STUDIO_PATH=%VISUAL_STUDIO_PATH_2%
+goto build
+)
+
+if exist %VISUAL_STUDIO_PATH_3% (
+set VISUAL_STUDIO_PATH=%VISUAL_STUDIO_PATH_3%
+goto build
+)
+
+REM No default path found. Let the user know what to do.
+echo No Visual Studio installation found. Please configure it manually.
+echo  1. Copy 'Paths.cmd.template'.
+echo  2. Rename it to 'Paths.cmd'.
+echo  3. Enter your Visual Studio path in there.
+echo  4. Restart the build.
+REM Allow disabling pause to support non-interacting build chains.
+if NOT "%~1"=="-no-pause" pause
+goto end
+)
+
+:build
+REM Log the used Vistual Studio version.
+@echo on
+%VISUAL_STUDIO_PATH% /p:Configuration=Release
+@echo off
 
-:exit
+:end
 popd
 @echo on

Diff for: Paths.cmd.template

@@ -1,12 +1,4 @@
 @echo off
-:: Set your Visual Studio path here.
-:: TODO: Make visual studio path auto detection.
-
-:: Enterprise path
-SET VISUAL_STUDIO_PATH=%programfiles(x86)%\Microsoft Visual Studio\2019\Enterprise\MSBuild\Current\Bin\msbuild.exe
-
-:: Community path
-::SET VISUAL_STUDIO_PATH=%programfiles(x86)%\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\msbuild.exe
-
-echo Using Visual Studio path:%VISUAL_STUDIO_PATH%
+REM Set your Visual Studio path here.
+SET VISUAL_STUDIO_PATH="%programfiles(x86)%\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\msbuild.exe"
 @echo on