proj: use resource

1 files changed, 7 insertions, 8 deletions

diff --git a/Library/Formula/proj.rb b/Library/Formula/proj.rb
index 6427a7920..4933ab45b 100644
--- a/Library/Formula/proj.rb
+++ b/Library/Formula/proj.rb
@@ -1,15 +1,16 @@
 require 'formula'
 
-class ProjDatumgrid < Formula
-  url 'http://download.osgeo.org/proj/proj-datumgrid-1.5.zip'
-  sha1 '4429ba1a8c764d5c0e6724d868f6874f452f7440'
-end
-
 class Proj < Formula
   homepage 'http://trac.osgeo.org/proj/'
   url 'http://download.osgeo.org/proj/proj-4.8.0.tar.gz'
   sha1 '5c8d6769a791c390c873fef92134bf20bb20e82a'
 
+  # The datum grid files are required to support datum shifting
+  resource 'datumgrid' do
+    url 'http://download.osgeo.org/proj/proj-datumgrid-1.5.zip'
+    sha1 '4429ba1a8c764d5c0e6724d868f6874f452f7440'
+  end
+
   skip_clean :la
 
   fails_with :llvm do
@@ -17,9 +18,7 @@ class Proj < Formula
   end
 
   def install
-    # The datum grid files are required to support datum shifting
-    ProjDatumgrid.new.brew { cp Dir["*"], buildpath/'nad' }
-
+    (buildpath/'nad').install resource('datumgrid')
     system "./configure", "--disable-dependency-tracking",
                           "--prefix=#{prefix}"
     system "make install"