development_tools: add installed? method. (#455)

3 files changed, 3 insertions, 3 deletions

diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index 56cfbc24f..df9850307 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -96,7 +96,7 @@ module Homebrew
 
       # if the user's flags will prevent bottle only-installations when no
       # developer tools are available, we need to stop them early on
-      FormulaInstaller.prevent_build_flags unless MacOS.has_apple_developer_tools?
+      FormulaInstaller.prevent_build_flags unless DevelopmentTools.installed?
 
       ARGV.formulae.each do |f|
         # head-only without --HEAD is an error
diff --git a/Library/Homebrew/cmd/reinstall.rb b/Library/Homebrew/cmd/reinstall.rb
index 4a23c00ec..dc3a02cef 100644
--- a/Library/Homebrew/cmd/reinstall.rb
+++ b/Library/Homebrew/cmd/reinstall.rb
@@ -5,7 +5,7 @@ require "formula_installer"
 
 module Homebrew
   def reinstall
-    FormulaInstaller.prevent_build_flags unless MacOS.has_apple_developer_tools?
+    FormulaInstaller.prevent_build_flags unless DevelopmentTools.installed?
 
     ARGV.resolved_formulae.each { |f| reinstall_formula(f) }
   end
diff --git a/Library/Homebrew/cmd/upgrade.rb b/Library/Homebrew/cmd/upgrade.rb
index c296e7757..e914da3a3 100644
--- a/Library/Homebrew/cmd/upgrade.rb
+++ b/Library/Homebrew/cmd/upgrade.rb
@@ -13,7 +13,7 @@ require "cleanup"
 
 module Homebrew
   def upgrade
-    FormulaInstaller.prevent_build_flags unless MacOS.has_apple_developer_tools?
+    FormulaInstaller.prevent_build_flags unless DevelopmentTools.installed?
 
     Homebrew.perform_preinstall_checks