1 files changed, 10 insertions, 0 deletions
diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 2ba8f5762..30c8d953b 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -123,6 +123,16 @@ class Formula
   def plist_name; 'homebrew.mxcl.'+name end
   def plist_path; prefix+(plist_name+'.plist') end
 
+  # A version of mkdir that also changes to that folder in a block
+  def mkdir name, &block
+    FileUtils.mkdir name
+    if block_given?
+      FileUtils.chdir name do
+        yield
+      end
+    end
+  end
+
   # Use the @spec_to_use to detect the download strategy.
   # Can be overriden to force a custom download strategy
   def download_strategy