1 files changed, 84 insertions, 0 deletions
diff --git a/lib/chef/provider/cookbook_file.rb b/lib/chef/provider/cookbook_file.rb
new file mode 100644
index 0000000000..431f3f2367
--- /dev/null
+++ b/lib/chef/provider/cookbook_file.rb
@@ -0,0 +1,84 @@
+#
+# Author:: Daniel DeLeo (<dan@opscode.com>)
+# Copyright:: Copyright (c) 2010 Opscode, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+require 'chef/file_access_control'
+require 'chef/provider/file'
+require 'tempfile'
+
+class Chef
+  class Provider
+    class CookbookFile < Chef::Provider::File
+      def whyrun_supported?
+        true
+      end
+
+      def load_current_resource
+        @current_resource = Chef::Resource::CookbookFile.new(@new_resource.name)
+        super
+      end
+
+      def action_create
+        if file_cache_location && content_stale? 
+          description = []
+          description << "create a new cookbook_file #{@new_resource.path}"
+          description << diff_current(file_cache_location)
+          converge_by(description) do
+            Chef::Log.debug("#{@new_resource} has new contents")
+            backup_new_resource
+            deploy_tempfile do |tempfile|
+              Chef::Log.debug("#{@new_resource} staging #{file_cache_location} to #{tempfile.path}")
+              tempfile.close
+              FileUtils.cp(file_cache_location, tempfile.path)
+              # Since the @new_resource.path file will not be updated
+              # at the time of converge, we must use the tempfile
+              update_new_file_state(tempfile.path)
+            end
+            Chef::Log.info("#{@new_resource} created file #{@new_resource.path}")
+          end
+        else
+          set_all_access_controls
+        end
+      end
+
+      def file_cache_location
+        @file_cache_location ||= begin
+          cookbook = run_context.cookbook_collection[resource_cookbook]
+          cookbook.preferred_filename_on_disk_location(node, :files, @new_resource.source, @new_resource.path)
+        end
+      end
+
+      # Determine the cookbook to get the file from. If new resource sets an
+      # explicit cookbook, use it, otherwise fall back to the implicit cookbook
+      # i.e., the cookbook the resource was declared in.
+      def resource_cookbook
+        @new_resource.cookbook || @new_resource.cookbook_name
+      end
+
+      def backup_new_resource
+        if ::File.exists?(@new_resource.path)
+          backup @new_resource.path
+        end
+      end
+
+      def content_stale?
+        ( ! ::File.exist?(@new_resource.path)) || ( ! compare_content)
+      end
+
+    end
+  end
+end