From 98bb638f29786cea209ee78f5caa7dda354e6ea5 Mon Sep 17 00:00:00 2001
From: Misty De Meo
Date: Mon, 24 Aug 2015 20:10:53 -0700
Subject: Formula#file_modified?: fix for Xcodes without git

Fixes Homebrew/homebrew#43206.
---
 Library/Homebrew/formula.rb | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'Library')

diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 8fba7803b..c9e931311 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -765,10 +765,15 @@ class Formula
   end
 
   def file_modified?
-    git_dir = MacOS.locate("git").dirname.to_s
+    # New Homebrew installs may not be a git repo yet
+    return false unless File.exist? "#{HOMEBREW_PREFIX}/.git"
+
+    git = MacOS.locate("git")
+    # git isn't installed by older Xcodes
+    return false if git.nil?
 
     # /usr/bin/git is a popup stub when Xcode/CLT aren't installed, so bail out
-    return false if git_dir == "/usr/bin" && !MacOS.has_apple_developer_tools?
+    return false if git.dirname.to_s == "/usr/bin" && !MacOS.has_apple_developer_tools?
 
     path.parent.cd do
       diff = Utils.popen_read("git", "diff", "origin/master", "--", "#{path}")
-- 
cgit v1.2.3