feat: enable logging after anvil is ready

.vscode/settings.json

@@ -1,3 +1,7 @@
 {
-  "editor.defaultFormatter": "golang.go"
+  "editor.defaultFormatter": "golang.go",
+  "go.lintTool": "golangci-lint",
+  "go.lintFlags": [
+    "--fast"
+  ]
 }

anvil/anvil.go

@@ -23,6 +23,8 @@ type Config struct {
 }
 
 type Anvil struct {
+	rpcClient *rpc.Client
+
 	log log.Logger
 
 	cfg *Config
@@ -70,6 +72,7 @@ func (a *Anvil) Start(ctx context.Context) error {
 
 	// Prep args
 	args := []string{
+		"--silent",
 		"--host", host,
 		"--chain-id", fmt.Sprintf("%d", a.cfg.ChainId),
 		"--port", fmt.Sprintf("%d", a.cfg.Port),
@@ -110,14 +113,22 @@ func (a *Anvil) Start(ctx context.Context) error {
 		return fmt.Errorf("failed to start anvil: %w", err)
 	}
 
+	rpcClient, err := rpc.Dial(a.Endpoint())
+	if err != nil {
+		return fmt.Errorf("failed to create RPC client: %w", err)
+	}
+	a.rpcClient = rpcClient
+
 	go func() {
 		defer os.Remove(tempFile.Name())
+		defer a.rpcClient.Close()
 
 		if err := a.cmd.Wait(); err != nil {
 			anvilLog.Error("anvil terminated with an error", "error", err)
 		} else {
 			anvilLog.Info("anvil terminated")
 		}
+
 		a.stoppedCh <- struct{}{}
 	}()
 
@@ -145,31 +156,19 @@ func (a *Anvil) Endpoint() string {
 	return fmt.Sprintf("http://%s:%d", host, a.cfg.Port)
 }
 
-func (a *Anvil) WaitUntilReady(ctx context.Context) error {
-	return waitForAnvilEndpointToBeReady(ctx, a.Endpoint(), 10*time.Second)
-}
-
 func (a *Anvil) ChainId() uint64 {
 	return a.cfg.ChainId
 }
 
-func waitForAnvilEndpointToBeReady(ctx context.Context, endpoint string, timeout time.Duration) error {
-	client, err := rpc.Dial(endpoint)
-	if err != nil {
-		return fmt.Errorf("failed to create client: %w", err)
-	}
-
-	defer client.Close()
-
-	if err := waitForAnvilClientToBeReady(ctx, client, timeout); err != nil {
-		return fmt.Errorf("failed to connect to RPC server: %w", err)
+func (a *Anvil) EnableLogging() {
+	var result string
+	if err := a.rpcClient.Call(&result, "anvil_setLoggingEnabled", true); err != nil {
+		a.log.Error("failed to enable logging", "error", err)
 	}
-
-	return nil
 }
 
-func waitForAnvilClientToBeReady(ctx context.Context, client *rpc.Client, timeout time.Duration) error {
-	timeoutCtx, cancel := context.WithTimeout(context.Background(), timeout)
+func (a *Anvil) WaitUntilReady(ctx context.Context) error {
+	timeoutCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
 	defer cancel()
 
 	ticker := time.NewTicker(100 * time.Millisecond)
@@ -183,7 +182,7 @@ func waitForAnvilClientToBeReady(ctx context.Context, client *rpc.Client, timeou
 			return fmt.Errorf("timed out waiting for response from client")
 		case <-ticker.C:
 			var result string
-			callErr := client.Call(&result, "web3_clientVersion")
+			callErr := a.rpcClient.Call(&result, "web3_clientVersion")
 
 			if callErr != nil {
 				continue

supersim.go

@@ -86,6 +86,8 @@ func (s *Supersim) Start(ctx context.Context) error {
 		return fmt.Errorf("supersim failed to get ready: %w", err)
 	}
 
+	s.EnableLogging()
+
 	s.log.Info("supersim is ready")
 	s.log.Info(s.ConfigAsString())
 
@@ -165,19 +167,30 @@ func (s *Supersim) WaitUntilReady() error {
 		handleErr(anvil.WaitUntilReady(ctx))
 	}
 
-	wg.Add(1)
-	go waitForAnvil(s.l1Anvil)
-
-	for _, l2Anvil := range s.l2Anvils {
+	s.IterateChains(func(chain *anvil.Anvil) {
 		wg.Add(1)
-		go waitForAnvil(l2Anvil)
-	}
+		go waitForAnvil(chain)
+	})
 
 	wg.Wait()
 
 	return err
 }
 
+func (s *Supersim) EnableLogging() {
+	s.IterateChains(func(chain *anvil.Anvil) {
+		chain.EnableLogging()
+	})
+}
+
+func (s *Supersim) IterateChains(fn func(anvil *anvil.Anvil)) {
+	fn(s.l1Anvil)
+
+	for _, l2Anvil := range s.l2Anvils {
+		fn(l2Anvil)
+	}
+}
+
 func (s *Supersim) ConfigAsString() string {
 	var b strings.Builder