Merge pull request #1348 from rrotter/cmd-completion

enforce limit of one subcommand, list named_args

cmd/bundle.rb

@@ -92,13 +92,20 @@ class BundleCmd < AbstractCommand
  description: "`dump` does not add `restart_service` to formula lines."
  switch "--zap",
  description: "`cleanup` casks using the `zap` command instead of `uninstall`."
+
+ named_args %w[install dump cleanup check exec list]
  end
 
  def run
  # Keep this inside `run` to keep --help fast.
  require_relative "../lib/bundle"
 
- case subcommand = args.named.first.presence
+ subcommand = args.named.first.presence
+ if subcommand != "exec" && args.named.size > 1
+ raise UsageError, "This command does not take more than 1 subcommand argument."
+ end
+
+ case subcommand
  when nil, "install"
  Bundle::Commands::Install.run(
  global: args.global?,