From aa75d701468379ea81718049fbc9ac08ae6483bf Mon Sep 17 00:00:00 2001
From: Jack Nagel
Date: Sat, 13 Dec 2014 22:51:21 -0500
Subject: Validate arguments in Resource#stage

---
 Library/Homebrew/resource.rb | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'Library/Homebrew/resource.rb')

diff --git a/Library/Homebrew/resource.rb b/Library/Homebrew/resource.rb
index f6b417fc5..573a7bcb1 100644
--- a/Library/Homebrew/resource.rb
+++ b/Library/Homebrew/resource.rb
@@ -72,8 +72,11 @@ class Resource
     downloader.clear_cache
   end
 
-  # Fetch, verify, and unpack the resource
   def stage(target=nil, &block)
+    unless target || block
+      raise ArgumentError, "target directory or block is required"
+    end
+
     verify_download_integrity(fetch)
     unpack(target, &block)
   end
-- 
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