Support the binary option for .NET (#4355)

Support the binary option for .NET

CHANGELOG.md

@@ -31,7 +31,10 @@ CHANGELOG
 
 - Make prebuilt executables opt-in only for the Go SDK
  [#4338](https://github.com/pulumi/pulumi/pull/4338)
- 
+
+- Support the `binary` option (prebuilt executables) for the .NET SDK
+ [#4355](https://github.com/pulumi/pulumi/pull/4355)
+
 - Add helper methods for stack outputs in the Go SDK
   [#4341](https://github.com/pulumi/pulumi/pull/4341)
 

sdk/dotnet/cmd/pulumi-language-dotnet/main.go

@@ -46,7 +46,9 @@ var (
 // LanguageRuntimeServer RPC endpoint.
 func main() {
 	var tracing string
+	var binary string
 	flag.StringVar(&tracing, "tracing", "", "Emit tracing to a Zipkin-compatible tracing endpoint")
+	flag.StringVar(&binary, "binary", "", "A relative or an absolute path to a precompiled .NET assembly to execute")
 
 	// You can use the below flag to request that the language host load a specific executor instead of probing the
 	// PATH.  This can be used during testing to override the default location.
@@ -82,7 +84,7 @@ func main() {
 	// Fire up a gRPC server, letting the kernel choose a free port.
 	port, done, err := rpcutil.Serve(0, nil, []func(*grpc.Server) error{
 		func(srv *grpc.Server) error {
-			host := newLanguageHost(dotnetExec, engineAddress, tracing)
+			host := newLanguageHost(dotnetExec, engineAddress, tracing, binary)
 			pulumirpc.RegisterLanguageRuntimeServer(srv, host)
 			return nil
 		},
@@ -106,14 +108,16 @@ type dotnetLanguageHost struct {
 	exec          string
 	engineAddress string
 	tracing       string
+	binary        string
 }
 
-func newLanguageHost(exec, engineAddress, tracing string) pulumirpc.LanguageRuntimeServer {
+func newLanguageHost(exec, engineAddress, tracing string, binary string) pulumirpc.LanguageRuntimeServer {
 
 	return &dotnetLanguageHost{
 		exec:          exec,
 		engineAddress: engineAddress,
 		tracing:       tracing,
+		binary:        binary,
 	}
 }
 
@@ -124,6 +128,11 @@ func (host *dotnetLanguageHost) GetRequiredPlugins(
 
 	logging.V(5).Infof("GetRequiredPlugins: %v", req.GetProgram())
 
+	if host.binary != "" {
+		logging.V(5).Infof("GetRequiredPlugins: no plugins can be listed when a binary is specified")
+		return &pulumirpc.GetRequiredPluginsResponse{}, nil
+	}
+
 	// Make a connection to the real engine that we will log messages to.
 	conn, err := grpc.Dial(host.engineAddress, grpc.WithInsecure())
 	if err != nil {
@@ -464,10 +473,16 @@ func (host *dotnetLanguageHost) Run(ctx context.Context, req *pulumirpc.RunReque
 		return nil, err
 	}
 
-	args := []string{"run"}
+	args := []string{}
 
-	if req.GetProgram() != "" {
-		args = append(args, req.GetProgram())
+	if host.binary != "" {
+		args = append(args, host.binary)
+	} else {
+		args = append(args, "run")
+
+		if req.GetProgram() != "" {
+			args = append(args, req.GetProgram())
+		}
 	}
 
 	if logging.V(5) {