From e7e0dcfdd1724b9d12932670d1cd1ff500fe6380 Mon Sep 17 00:00:00 2001
From: Gautham Goli <goligautham@gmail.com>
Date: Sat, 27 Oct 2018 22:59:08 +0530
Subject: [PATCH] diy: Use CLI::Parser to parse args

---
 Library/Homebrew/cmd/diy.rb | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/Library/Homebrew/cmd/diy.rb b/Library/Homebrew/cmd/diy.rb
index a2cdf6c1fa..c4b892a6c7 100644
--- a/Library/Homebrew/cmd/diy.rb
+++ b/Library/Homebrew/cmd/diy.rb
@@ -9,15 +9,36 @@
 #:    installing.
 
 require "formula"
+require "cli_parser"
 
 module Homebrew
   module_function
 
+  def diy_args
+    Homebrew::CLI::Parser.new do
+      usage_banner <<~EOS
+        `diy` [<options>]
+
+        Automatically determine the installation prefix for non-Homebrew software.
+        Using the output from this command, you can install your own software into
+        the Cellar and then link it into Homebrew's prefix with `brew link`.
+      EOS
+      flag "--name=",
+       description: "Explicitly set the provided <name> of the package being installed."
+      flag "--version=",
+       description: "Explicitly set the provided <version> of the package being installed."
+      switch :verbose
+      switch :debug
+    end
+  end
+
   def diy
+    diy_args.parse
+
     path = Pathname.getwd
 
-    version = ARGV.value("version") || detect_version(path)
-    name = ARGV.value("name") || detect_name(path, version)
+    version = args.version || detect_version(path)
+    name = args.name || detect_name(path, version)
 
     prefix = HOMEBREW_CELLAR/name/version