GHA: add the ability to upload install logs on failure

Attempt to enable logging on installation. If the installation fails, this allows us to upload logs so that we can perform diagnostics on why the install may have failed.

Author: compnerd

action.yml

@@ -74,10 +74,11 @@ runs:
       shell: pwsh
 
     - name: Install Swift ${{ inputs.tag }}
+      id: install-swift
       if: runner.os == 'Windows'
       run: |
         $Installer = [IO.Path]::Combine(${env:Temp}, "installer.exe")
-        $Arguments = "/quiet ${{ inputs.installer-args }}".Split(" ", [StringSplitOptions]"RemoveEmptyEntries")
+        $Arguments = "/quiet /lv*x ${env:Temp}/install.log ${{ inputs.installer-args }}".Split(" ", [StringSplitOptions]"RemoveEmptyEntries")
 
         Write-Host "::debug::Installer Arguments: $($Arguments -join ' ')"
         try {
@@ -110,6 +111,13 @@ runs:
         Get-ChildItem Env: | ForEach-Object { echo "$($_.Name)=$($_.Value)" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append }
       shell: pwsh
 
+    - name: Upload Error Logs
+      if: runner.os == 'Windows' && failure() && steps.install-swift.outcome == 'failure'
+      uses: actions/upload-artifact@v4
+      with:
+        name: installer-logs
+        path: ${env:Temp}/install*.log*
+
     - name: Check Swift version
       if: runner.os == 'Windows'
       id: swift-version