Function isCompletionCommand

cmd/root.go:215–222

isCompletionCommand returns true if args indicate a shell completion request. Update notifications and Shutdown lifecycle emits must be suppressed for these to avoid corrupting machine-parseable completion output and to avoid firing plugin Shutdown handlers on every Tab keystroke. Cobra dispatches

(args []string)

// ShellCompNoDescRequestCmd). Check both, otherwise bash/zsh completion
// (which often uses NoDesc) silently bypasses the gate.
func isCompletionCommand(args []string) bool {
	for _, arg := range args {
		if arg == "completion" || arg == "__complete" || arg == "__completeNoDesc" {
			return true
		}
	}
	return false
}

// configureFlagCompletions enables cmdutil.RegisterFlagCompletion only when
// the invocation will actually serve a __complete request.