run.cmd

@if not defined _echo @echo off
setlocal

:: Default to highest Visual Studio version available
::
:: For VS2015 (and prior), only a single instance is allowed to be installed on a box
:: and VS140COMNTOOLS is set as a global environment variable by the installer. This
:: allows users to locate where the instance of VS2015 is installed.
::
:: For VS2017, multiple instances can be installed on the same box SxS and VS150COMNTOOLS
:: is no longer set as a global environment variable and is instead only set if the user
:: has launched the VS2017 Developer Command Prompt.
::
:: Following this logic, we will default to the VS2017 toolset if VS150COMNTOOLS tools is
:: set, as this indicates the user is running from the VS2017 Developer Command Prompt and
:: is already configured to use that toolset. Otherwise, we will fallback to using the VS2015
:: toolset if it is installed. Finally, we will fail the script if no supported VS instance
:: can be found.

if defined VisualStudioVersion goto :Run

set _VSWHERE="%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe"
if exist %_VSWHERE% (
  for /f "usebackq tokens=*" %%i in (`%_VSWHERE% -latest -prerelease -property installationPath`) do set _VSCOMNTOOLS=%%i\Common7\Tools
)
if not exist "%_VSCOMNTOOLS%" set _VSCOMNTOOLS=%VS140COMNTOOLS%
if not exist "%_VSCOMNTOOLS%" (
  echo Error: Visual Studio 2015 or 2017 required.
  echo        Please see https://github.com/dotnet/corefx/blob/master/Documentation/project-docs/developer-guide.md for build instructions.
  exit /b 1
)

call "%_VSCOMNTOOLS%\VsDevCmd.bat"

:Run
:: Clear the 'Platform' env variable for this session, as it's a per-project setting within the build, and
:: misleading value (such as 'MCD' in HP PCs) may lead to build breakage (issue: #69).
set Platform=

:: Disable telemetry, first time experience, and global sdk look for the CLI
set DOTNET_CLI_TELEMETRY_OPTOUT=1
set DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1
set DOTNET_MULTILEVEL_LOOKUP=0

pushd %~dp0
powershell -NoProfile -ExecutionPolicy unrestricted -Command "%~dp0run.ps1 -- %*"
popd
exit /b %ERRORLEVEL%