From 798af254667f6488cc6a1bb554f423d88f2a7b22 Mon Sep 17 00:00:00 2001
From: Markus Reiter
Date: Wed, 10 May 2017 20:46:39 +0200
Subject: Don’t run checksum check if no commit range is given.

---
 Library/Homebrew/cask/lib/hbc/audit.rb | 1 +
 1 file changed, 1 insertion(+)

(limited to 'Library')

diff --git a/Library/Homebrew/cask/lib/hbc/audit.rb b/Library/Homebrew/cask/lib/hbc/audit.rb
index 8b88394c4..6569da126 100644
--- a/Library/Homebrew/cask/lib/hbc/audit.rb
+++ b/Library/Homebrew/cask/lib/hbc/audit.rb
@@ -66,6 +66,7 @@ module Hbc
       tap = Tap.select { |t| t.cask_file?(@cask.sourcefile_path) }.first
       return if tap.nil?
 
+      return if commit_range.nil?
       previous_cask_contents = Git.last_revision_of_file(tap.path, @cask.sourcefile_path, before_commit: commit_range)
       return if previous_cask_contents.empty?
 
-- 
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