Only dup and shift when specs hash is populated

2013-04-16 14:18:07 -05:00 · 2013-04-16 14:18:07 -05:00 · 1426b92a82
commit 1426b92a82
parent 0fb4f9c426
1 changed files with 2 additions and 1 deletions
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@ -4,7 +4,8 @@ require 'vendor/multi_json'
 class AbstractDownloadStrategy
  def initialize name, package
    @url = package.url
-    @spec, @ref = package.specs.dup.shift
+    specs = package.specs
+    @spec, @ref = specs.dup.shift unless specs.empty?
  end

  def expand_safe_system_args args