Fixes for older VS2019 versions

common.ps1

@@ -31,12 +31,15 @@ function exec {
   $ErrorActionPreference = 'Continue'
   $global:LASTEXITCODE = 0
 
-  # Convert stderr in ErrorRecord objects back to strings
-  & $private:cmd 2>&1 | ForEach-Object { "$_" }
+  try {
+    # Convert stderr in ErrorRecord objects back to strings
+    & $cmd 2>&1 | ForEach-Object { "$_" }
 
-  $ErrorActionPreference = $private:eap
-
-  if ($global:LASTEXITCODE -ne 0) {
-    Write-Error "Command '$private:cmd' exited with code $LASTEXITCODE"
+    if ($LASTEXITCODE -ne 0) {
+      throw "Command '$cmd' exited with code $LASTEXITCODE"
+    }
+  }
+  finally {
+    $ErrorActionPreference = $eap
   }
 }

pico-env.cmd

@@ -52,7 +52,7 @@ call :AddToPath "%ProgramFiles%\Microsoft Visual Studio\Installer"
 
 rem https://github.com/microsoft/vswhere/wiki/Start-Developer-Command-Prompt
 
-for /f "usebackq delims=" %%i in (`vswhere.exe -products * -requires "Microsoft.VisualStudio.Component.VC.CoreIde" -latest -property installationPath`) do (
+for /f "usebackq delims=" %%i in (`vswhere.exe -products * -requires "Microsoft.VisualStudio.Component.VC.Tools.x86.x64" -latest -property installationPath`) do (
   if exist "%%i\Common7\Tools\vsdevcmd.bat" (
     call "%%i\Common7\Tools\vsdevcmd.bat"
   )

tests/setup-oldvs.ps1

@@ -20,6 +20,6 @@ $elapsed = Measure-Command { $process = Start-Process -FilePath ".\installers\$f
 Write-Host ("Finished in {0:hh':'mm':'ss}" -f $elapsed)
 
 if ($process.ExitCode -ne 0) {
-  Write-Host "Install failed with exit code $($process.ExitCode)"
+  throw "Install failed with exit code $($process.ExitCode)"
   exit $process.ExitCode
 }