Reuse adapter sessions during execution

builtins.go

@@ -38,11 +38,7 @@ func (a *App) installBuiltins() error {
 			func(value string) (string, error) { return value, nil },
 			func(input *helpInput, value Supplied[[]string]) { input.Targets = value })},
 		Run: func(invocation Invocation, input helpInput) Outcome {
-			target, err := a.helpCommandTarget(input.Targets.Value)
-			if err != nil {
-				return Usage(err)
-			}
-			return a.renderHelpOutcome(target, invocation.Streams)
+			return a.renderHelpTargets(input.Targets.Value, invocation.Streams)
 		},
 	})
 	if err != nil {
@@ -92,12 +88,30 @@ func parseVersionFormat(value string) (string, error) {
 }
 
 func (a *App) renderHelpOutcome(path []string, streams Streams) Outcome {
+	session := internalcobra.Prepare(a.bridgeTree(), internalcobra.ParseOptions{})
+	return a.renderHelpOutcomeWithSession(path, streams, session)
+}
+
+func (a *App) renderHelpTargets(targets []string, streams Streams) Outcome {
+	session := internalcobra.Prepare(a.bridgeTree(), internalcobra.ParseOptions{})
+	return a.renderHelpTargetsWithSession(targets, streams, session)
+}
+
+func (a *App) renderHelpTargetsWithSession(targets []string, streams Streams, session *internalcobra.Session) Outcome {
+	target, err := a.helpCommandTarget(targets)
+	if err != nil {
+		return Usage(err)
+	}
+	return a.renderHelpOutcomeWithSession(target, streams, session)
+}
+
+func (a *App) renderHelpOutcomeWithSession(path []string, streams Streams, session *internalcobra.Session) Outcome {
 	if len(path) > 0 {
 		if _, ok := a.commandAt(path); !ok {
 			return Usage(fmt.Errorf("unknown help path %q", strings.Join(path, " ")))
 		}
 	}
-	content, failure := internalcobra.RenderHelp(a.bridgeTree(), path)
+	content, failure := session.RenderHelp(path)
 	if failure != nil {
 		return Failure(errors.New(failure.Message))
 	}