sync with OpenBSD -current

lib/libva/.github/workflows/EnterDevShell.ps1

@@ -0,0 +1,38 @@
+param(
+    [Parameter()]
+    [String]$architecture
+)
+
+function EnterDevShellEnv  {
+
+    param(
+        [Parameter()]
+        [String]$arch
+    )
+
+    $vsw = Get-Command 'vswhere'
+    $VSFfavors = 'Community','Professional','Enterprise','BuildTools' | %{ "Microsoft.VisualStudio.Product.$_" }
+    $vs = & $vsw.Path -products $VSFfavors -latest -format json | ConvertFrom-Json
+    $tools_dir = Join-Path $vs.installationPath 'Common7' 'Tools'
+    # Try the root tools dir
+    $devshell = Join-Path $tools_dir 'Microsoft.VisualStudio.DevShell.dll'
+    # Try finding it under vsdevshell
+    if (!(Test-Path $devshell -Type Leaf)) {
+        $devshell = Join-Path $tools_dir 'vsdevshell' 'Microsoft.VisualStudio.DevShell.dll'
+    }
+    # Fail if didn't find the DevShell library
+    if (!(Test-Path $devshell -Type Leaf)) {
+        throw "error: cannot find Microsoft.VisualStudio.DevShell.dll"
+    }
+    Import-Module $devshell
+    Enter-VsDevShell -VsInstanceId $vs.instanceId -SkipAutomaticLocation -DevCmdArguments "-arch=$arch -no_logo"
+}
+
+# Enter VsDevShell, capture the environment difference and export it to github env
+$env_before = @{}
+Get-ChildItem env: | %{ $env_before.Add($_.Name, $_.Value) }
+EnterDevShellEnv -arch "$architecture"
+$env_after = @{}
+Get-ChildItem env: | %{ $env_after.Add($_.Name, $_.Value) }
+$env_diff = $env_after.GetEnumerator() | where { -not $env_before.ContainsKey($_.Name) -or $env_before[$_.Name] -ne $_.Value }
+$env_diff | %{ echo "$($_.Name)=$($_.Value)" >> $env:GITHUB_ENV }