fix: disable global timeout for --server mode

cmd/root/root_cmd.go

@@ -63,6 +63,23 @@ func (customDeadlineExceededError) Error() string {
 func (customDeadlineExceededError) Timeout() bool   { return true }
 func (customDeadlineExceededError) Temporary() bool { return true }
 
+// effectiveTimeout returns the timeout to use for the given command. It
+// disables the timeout for "validate input --server" since that starts a
+// persistent HTTP server that should run indefinitely.
+//
+// Note: this couples the root command to a leaf subcommand's flag. Moving
+// the logic to the subcommand's PreRunE is not practical because
+// PersistentPreRun has already applied the timeout to the context by then.
+func effectiveTimeout(cmd *cobra.Command, timeout time.Duration) time.Duration {
+	if cmd.Name() == "input" && cmd.Parent() != nil && cmd.Parent().Name() == "validate" {
+		if serverFlag := cmd.Flags().Lookup("server"); serverFlag != nil && serverFlag.Value.String() == "true" {
+			log.Debug("timeout disabled because --server flag is set")
+			return 0
+		}
+	}
+	return timeout
+}
+
 func NewRootCmd() *cobra.Command {
 	rootCmd := &cobra.Command{
 		Use:   "ec",
@@ -116,11 +133,12 @@ func NewRootCmd() *cobra.Command {
 			// custom timeout can be used and traces can be added
 			ctx := cmd.Context()
 			var cancel context.CancelFunc
-			if globalTimeout > 0 {
-				ctx, cancel = context.WithTimeout(ctx, globalTimeout)
-				log.Debugf("globalTimeout is %s", time.Duration(globalTimeout))
+			timeout := effectiveTimeout(cmd, globalTimeout)
+			if timeout > 0 {
+				ctx, cancel = context.WithTimeout(ctx, timeout)
+				log.Debugf("globalTimeout is %s", time.Duration(timeout))
 			} else {
-				log.Debugf("globalTimeout is %d, no timeout used", globalTimeout)
+				log.Debugf("globalTimeout is %d, no timeout used", timeout)
 			}
 			ctx = tracing.WithTrace(ctx, enabledTraces)
 			cmd.SetContext(ctx)

cmd/root/root_cmd_test.go

@@ -14,12 +14,16 @@
 //
 // SPDX-License-Identifier: Apache-2.0
 
+//go:build unit
+
 package root
 
 import (
+	"context"
 	"testing"
 	"time"
 
+	"github.com/spf13/cobra"
 	"github.com/stretchr/testify/assert"
 
 	"github.com/conforma/cli/internal/http"
@@ -79,6 +83,38 @@ func TestGlobalTimeout(t *testing.T) {
 	}
 }
 
+func TestGlobalTimeoutDisabledInServerMode(t *testing.T) {
+	globalTimeout = 5 * time.Minute
+
+	var capturedCtx context.Context
+	cmd := NewRootCmd()
+
+	// Synthetic command tree to avoid pulling in the real validate input
+	// command and its dependencies. If the real flag or command name changes,
+	// the server-mode acceptance tests would catch it.
+	validate := &cobra.Command{Use: "validate"}
+	input := &cobra.Command{
+		Use: "input",
+		Run: func(cmd *cobra.Command, _ []string) {
+			capturedCtx = cmd.Context()
+		},
+	}
+	var server bool
+	input.Flags().BoolVar(&server, "server", false, "")
+	validate.AddCommand(input)
+	cmd.AddCommand(validate)
+
+	cmd.SetArgs([]string{"validate", "input", "--server"})
+
+	err := cmd.Execute()
+	assert.NoError(t, err)
+	// The package-level variable must not be mutated.
+	assert.Equal(t, 5*time.Minute, globalTimeout)
+	// The execution context must not carry a deadline.
+	_, hasDeadline := capturedCtx.Deadline()
+	assert.False(t, hasDeadline)
+}
+
 func TestRetryConfigurationFlags(t *testing.T) {
 	tests := []struct {
 		name           string