--- a/tools/msbuild/install.bat	Sun Dec 23 19:23:36 2018 +0900
+++ b/tools/msbuild/install.bat	Wed Aug 14 19:46:37 2019 +0900
@@ -1,123 +1,57 @@
-@echo off
-
-echo Installing MSVC integration...
-set SUCCESS=0
-
-REM Change to the directory of this batch file.
-cd /d %~dp0
-
-REM Loop over the two platforms in awkward batch file fashion.
-set PLATFORM=None
-:PLATFORMLOOPHEAD
-IF %PLATFORM% == x64 GOTO PLATFORMLOOPEND
-IF %PLATFORM% == Win32 SET PLATFORM=x64
-IF %PLATFORM% == None SET PLATFORM=Win32
-
-REM Search for the MSBuild toolsets directory.
-
-SET D="%ProgramFiles%\MSBuild\Microsoft.Cpp\v4.0\Platforms\%PLATFORM%\PlatformToolsets"
-IF EXIST %D% GOTO FOUND_V100
-SET D="%ProgramFiles(x86)%\MSBuild\Microsoft.Cpp\v4.0\Platforms\%PLATFORM%\PlatformToolsets"
-IF EXIST %D% GOTO FOUND_V100
-
-:TRY_V110
-SET D="%ProgramFiles%\MSBuild\Microsoft.Cpp\v4.0\V110\Platforms\%PLATFORM%\PlatformToolsets"
-IF EXIST %D% GOTO FOUND_V110
-SET D="%ProgramFiles(x86)%\MSBuild\Microsoft.Cpp\v4.0\V110\Platforms\%PLATFORM%\PlatformToolsets"
-IF EXIST %D% GOTO FOUND_V110
-
-:TRY_V120
-SET D="%ProgramFiles%\MSBuild\Microsoft.Cpp\v4.0\V120\Platforms\%PLATFORM%\PlatformToolsets"
-IF EXIST %D% GOTO FOUND_V120
-SET D="%ProgramFiles(x86)%\MSBuild\Microsoft.Cpp\v4.0\V120\Platforms\%PLATFORM%\PlatformToolsets"
-IF EXIST %D% GOTO FOUND_V120
-
-:TRY_V140
-SET D="%ProgramFiles%\MSBuild\Microsoft.Cpp\v4.0\V140\Platforms\%PLATFORM%\PlatformToolsets"
-IF EXIST %D% GOTO FOUND_V140
-SET D="%ProgramFiles(x86)%\MSBuild\Microsoft.Cpp\v4.0\V140\Platforms\%PLATFORM%\PlatformToolsets"
-IF EXIST %D% GOTO FOUND_V140
-
-:TRY_V150
-
-GOTO PLATFORMLOOPHEAD
-
-:PLATFORMLOOPEND
-IF %SUCCESS% == 1 goto DONE
-echo Failed to find MSBuild toolsets directory.
-goto FAILED
-
-
-:FOUND_V100
-REM Routine for installing v100 toolchain.
-IF NOT EXIST %D%\LLVM-vs2010 mkdir %D%\LLVM-vs2010
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\Microsoft.Cpp.%PLATFORM%.LLVM-vs2010.props %D%\LLVM-vs2010
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\Microsoft.Cpp.%PLATFORM%.LLVM-vs2010.targets %D%\LLVM-vs2010
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-set SUCCESS=1
-GOTO TRY_V110
-
-:FOUND_V110
-REM Routine for installing v110 toolchain.
-IF NOT EXIST %D%\LLVM-vs2012 mkdir %D%\LLVM-vs2012
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\Microsoft.Cpp.%PLATFORM%.LLVM-vs2012.props %D%\LLVM-vs2012
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\Microsoft.Cpp.%PLATFORM%.LLVM-vs2012.targets %D%\LLVM-vs2012
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-IF NOT EXIST %D%\LLVM-vs2012_xp mkdir %D%\LLVM-vs2012_xp
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\Microsoft.Cpp.%PLATFORM%.LLVM-vs2012_xp.props %D%\LLVM-vs2012_xp
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\Microsoft.Cpp.%PLATFORM%.LLVM-vs2012_xp.targets %D%\LLVM-vs2012_xp
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-set SUCCESS=1
-GOTO TRY_V120
-
-:FOUND_V120
-REM Routine for installing v120 toolchain.
-IF NOT EXIST %D%\LLVM-vs2013 mkdir %D%\LLVM-vs2013
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\toolset-vs2013.props %D%\LLVM-vs2013\toolset.props
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\toolset-vs2013.targets %D%\LLVM-vs2013\toolset.targets
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-IF NOT EXIST %D%\LLVM-vs2013_xp mkdir %D%\LLVM-vs2013_xp
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\toolset-vs2013_xp.props %D%\LLVM-vs2013_xp\toolset.props
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\toolset-vs2013_xp.targets %D%\LLVM-vs2013_xp\toolset.targets
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-set SUCCESS=1
-GOTO TRY_V140
-
-:FOUND_V140
-REM Routine for installing v140 toolchain.
-IF NOT EXIST %D%\LLVM-vs2014 mkdir %D%\LLVM-vs2014
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\toolset-vs2014.props %D%\LLVM-vs2014\toolset.props
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\toolset-vs2014.targets %D%\LLVM-vs2014\toolset.targets
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-IF NOT EXIST %D%\LLVM-vs2014_xp mkdir %D%\LLVM-vs2014_xp
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\toolset-vs2014_xp.props %D%\LLVM-vs2014_xp\toolset.props
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-copy %PLATFORM%\toolset-vs2014_xp.targets %D%\LLVM-vs2014_xp\toolset.targets
-IF NOT %ERRORLEVEL% == 0 GOTO FAILED
-set SUCCESS=1
-GOTO TRY_V150
-
-
-:DONE
-echo Done!
-goto END
-
-:FAILED
-echo MSVC integration install failed.
-pause
-goto END
-
-:END
+@echo off
+
+echo Installing MSVC integration...
+set SUCCESS=0
+
+REM In general this script should not be used except for development and testing
+REM purposes.  The proper way to install is via the VSIX, and the proper way to
+REM uninstall is through the Visual Studio extension manager.
+
+REM Change to the directory of this batch file.
+cd /d %~dp0
+
+REM Older versions of VS would look for these files in the Program Files\MSBuild directory
+REM but with VS2017 it seems to look for these directly in the Visual Studio instance.
+REM This means we'll need to do a little extra work to properly detect all the various
+REM instances, but in reality we can probably sidestep all of this by just wrapping this
+REM in a vsix and calling it a day, as that should handle everything for us.
+SET VCTargets=%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Professional\Common7\IDE\VC\VCTargets
+
+ECHO Installing Common Files
+copy LLVM.Cpp.Common.props "%VCTargets%"
+IF NOT %ERRORLEVEL% == 0 GOTO FAILED
+copy LLVM.Cpp.Common.targets "%VCTargets%"
+IF NOT %ERRORLEVEL% == 0 GOTO FAILED
+
+ECHO Installing x64 Platform Toolset
+SET PlatformToolsets=%VCTargets%\Platforms\x64\PlatformToolsets
+IF NOT EXIST "%PlatformToolsets%\llvm" mkdir "%PlatformToolsets%\llvm"
+IF NOT %ERRORLEVEL% == 0 GOTO FAILED
+copy PlatformX64\Toolset.props "%PlatformToolsets%\llvm"
+IF NOT %ERRORLEVEL% == 0 GOTO FAILED
+copy PlatformX64\Toolset.targets "%PlatformToolsets%\llvm"
+IF NOT %ERRORLEVEL% == 0 GOTO FAILED
+
+ECHO Installing Win32 Platform Toolset
+SET PlatformToolsets=%VCTargets%\Platforms\Win32\PlatformToolsets
+IF NOT EXIST "%PlatformToolsets%\llvm" mkdir "%PlatformToolsets%\llvm"
+IF NOT %ERRORLEVEL% == 0 GOTO FAILED
+copy PlatformX86\Toolset.props "%PlatformToolsets%\llvm"
+IF NOT %ERRORLEVEL% == 0 GOTO FAILED
+copy PlatformX86\Toolset.targets "%PlatformToolsets%\llvm"
+IF NOT %ERRORLEVEL% == 0 GOTO FAILED
+
+ECHO Installing C++ Settings UI
+copy llvm-general.xml "%VCTargets%\1033"
+IF NOT %ERRORLEVEL% == 0 GOTO FAILED
+
+:DONE
+echo Done!
+goto END
+
+:FAILED
+echo MSVC integration install failed.
+pause
+goto END
+
+:END