From 0eecbb21fa5df8c52078c55702f134f27ea2ec1f Mon Sep 17 00:00:00 2001
From: Gautham Goli <goligautham@gmail.com>
Date: Sun, 20 Jan 2019 21:29:19 +0530
Subject: [PATCH] config: Use CLI::Parser to parse args

---
 Library/Homebrew/cmd/config.rb | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Library/Homebrew/cmd/config.rb b/Library/Homebrew/cmd/config.rb
index daaa51f32b..44b6ec6198 100644
--- a/Library/Homebrew/cmd/config.rb
+++ b/Library/Homebrew/cmd/config.rb
@@ -4,11 +4,28 @@
 #:    provide it.
 
 require "system_config"
+require "cli_parser"
 
 module Homebrew
   module_function
 
+  def config_args
+    Homebrew::CLI::Parser.new do
+      usage_banner <<~EOS
+        `config`
+
+        Show Homebrew and system configuration useful for debugging. If you file
+        a bug report, you will likely be asked for this information if you do not
+        provide it.
+      EOS
+      switch :verbose
+      switch :debug
+    end
+  end
+
   def config
+    config_args.parse
+    raise UsageError unless args.remaining.empty?
     SystemConfig.dump_verbose_config
   end
 end