gh-27: Run build.ps1 from Developer PowerShell for Visual Studio.

Author: python-processing-unit

.github/workflows/ci.yml

@@ -15,12 +15,24 @@ jobs:
       - name: Setup Visual Studio
         uses: microsoft/setup-msbuild@v1.1
 
-      - name: Build interpreter and extensions
+      - name: Build interpreter and extensions (Developer PowerShell)
         shell: powershell
         run: |
-          .\build.ps1
+          $vswhere = Join-Path $env:'ProgramFiles(x86)' 'Microsoft Visual Studio\Installer\vswhere.exe'
+          if (-not (Test-Path $vswhere)) { Write-Error "vswhere not found at $vswhere"; exit 1 }
+          $inst = & $vswhere -latest -products * -requires Microsoft.Component.MSBuild -property installationPath
+          if (-not $inst) { Write-Error 'Visual Studio installation not found'; exit 1 }
+          $vsDevCmd = Join-Path $inst 'Common7\Tools\VsDevCmd.bat'
+          if (-not (Test-Path $vsDevCmd)) { Write-Error "VsDevCmd.bat not found: $vsDevCmd"; exit 1 }
+          cmd /c "`"$vsDevCmd`" -noLogo && powershell -NoProfile -ExecutionPolicy Bypass -File .\build.ps1"
 
-      - name: Run tests
+      - name: Run tests (Developer PowerShell)
         shell: powershell
         run: |
-          .\prefix.exe .\tests\test2.pre
+          $vswhere = Join-Path $env:'ProgramFiles(x86)' 'Microsoft Visual Studio\Installer\vswhere.exe'
+          if (-not (Test-Path $vswhere)) { Write-Error "vswhere not found at $vswhere"; exit 1 }
+          $inst = & $vswhere -latest -products * -requires Microsoft.Component.MSBuild -property installationPath
+          if (-not $inst) { Write-Error 'Visual Studio installation not found'; exit 1 }
+          $vsDevCmd = Join-Path $inst 'Common7\Tools\VsDevCmd.bat'
+          if (-not (Test-Path $vsDevCmd)) { Write-Error "VsDevCmd.bat not found: $vsDevCmd"; exit 1 }
+          cmd /c "`"$vsDevCmd`" -noLogo && powershell -NoProfile -ExecutionPolicy Bypass -Command .\prefix.exe .\tests\test2.pre"