Defer evaluation of an edited file's contents

We want to make sure we don't build the contents until the resource
is asctually being run, as it may rely on template files installed by
a previous resource.

diff --git a/cookbooks/chef/libraries/edit_file.rb b/cookbooks/chef/libraries/edit_file.rb
index 1c8e263e41697f30c73352b092157e48880940f0..400e1967e0c96718f84733728d6c8d621f25963a 100644 (file)
--- a/cookbooks/chef/libraries/edit_file.rb
+++ b/cookbooks/chef/libraries/edit_file.rb
@@ -1,9 +1,22 @@
 class Chef
+  class Util
+    class EditedFile
+      def initialize(file, block)
+        @file = file
+        @block = block
+      end
+
+      def to_s
+        ::File.new(@file).collect do |line|
+          line = @block.call(line)
+        end.join("")
+      end
+    end
+  end
+
   class Recipe
     def edit_file(file, &block)
-      ::File.new(file).collect do |line|
-        line = yield line
-      end.join("")
+      Chef::Util::EditedFile.new(file, block)
     end
   end
 end