From 1face808f5f1dc43c887cab421b5c01f7e20fdf7 Mon Sep 17 00:00:00 2001
From: William Woodruff
Date: Sun, 26 Jul 2015 16:49:16 -0400
Subject: Add guards to calls that would trigger Xcode install requests

add guard in Formula#file_modified? to prevent git popup

add guard in Superenv.bin before calling MacOS::Xcode.version

add guard against missing Xcode/CLT in Xcode.uncached_version

return nil instread of 0 in uncached_version when Xcode/CLT are not present, to distinguish from linuxbrew behavior

checks against pour_bottle? and needs_relocation?, add guard around keg.relocate_install_names to check pour_bottle?/needs_relocation? as well

needs_relocation? becomes skip_relocation?, use cellar attr to indicate relocation instead of does_not_need_relocation

MacOS.can_build? becomes MacOS.has_apple_developer_tools?
---
 Library/Homebrew/os/mac/xcode.rb | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'Library/Homebrew/os/mac/xcode.rb')

diff --git a/Library/Homebrew/os/mac/xcode.rb b/Library/Homebrew/os/mac/xcode.rb
index 83ba84ff8..40446a8ad 100644
--- a/Library/Homebrew/os/mac/xcode.rb
+++ b/Library/Homebrew/os/mac/xcode.rb
@@ -76,6 +76,8 @@ module OS
 
         return "0" unless OS.mac?
 
+        return nil if !MacOS::Xcode.installed? && !MacOS::CLT.installed?
+
         %W[#{prefix}/usr/bin/xcodebuild #{which("xcodebuild")}].uniq.each do |path|
           if File.file? path
             Utils.popen_read(path, "-version") =~ /Xcode (\d(\.\d)*)/
-- 
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