From f338e9b99d508199fc6c0b8ee83897c83751f899 Mon Sep 17 00:00:00 2001
From: Michael Miller <icy.arctic.fox@gmail.com>
Date: Sun, 3 Mar 2019 10:52:15 -0700
Subject: [PATCH] Add -v argument to use document formatter

---
 src/spectator/command_line_arguments_config_source.cr | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/spectator/command_line_arguments_config_source.cr b/src/spectator/command_line_arguments_config_source.cr
index 40845d5..ee603fb 100644
--- a/src/spectator/command_line_arguments_config_source.cr
+++ b/src/spectator/command_line_arguments_config_source.cr
@@ -1,3 +1,5 @@
+require "option_parser"
+
 module Spectator
   # Generates configuration from the command-line arguments.
   class CommandLineArgumentsConfigSource < ConfigSource
@@ -10,7 +12,9 @@ module Spectator
     # Applies the specified configuration to a builder.
     # Calling this method from multiple sources builds up the final configuration.
     def apply_to(builder : ConfigBuilder) : Nil
-      # ...
+      OptionParser.parse(@args) do |parser|
+        parser.on("-v", "--verbose", "Verbose output using document formatter") { builder.formatter = Formatting::DocumentFormatter.new }
+      end
     end
   end
 end