1 files changed, 80 insertions, 0 deletions
diff --git a/lib/chef/provider/deploy/revision.rb b/lib/chef/provider/deploy/revision.rb
new file mode 100644
index 0000000000..3728fc6a31
--- /dev/null
+++ b/lib/chef/provider/deploy/revision.rb
@@ -0,0 +1,80 @@
+#
+# Author:: Daniel DeLeo (<dan@kallistec.com>)
+# Author:: Tim Hinderliter (<tim@opscode.com>)
+# Author:: Seth Falcon (<seth@opscode.com>)
+# Copyright:: Copyright (c) 2009 Daniel DeLeo
+# 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/provider'
+require 'chef/provider/deploy'
+require 'chef/json_compat'
+
+class Chef
+  class Provider
+    class Deploy
+      class Revision < Chef::Provider::Deploy
+
+        def all_releases
+          sorted_releases
+        end
+
+        protected
+
+        def release_created(release)
+          sorted_releases {|r| r.delete(release); r << release }
+        end
+
+        def release_deleted(release)
+          sorted_releases { |r| r.delete(release)}
+        end
+
+        def release_slug
+          scm_provider.revision_slug
+        end
+
+        private
+
+        def sorted_releases
+          cache = load_cache
+          if block_given?
+            yield cache
+            save_cache(cache)
+          end
+          cache
+        end
+
+        def sorted_releases_from_filesystem
+          Dir.glob(new_resource.deploy_to + "/releases/*").sort_by { |d| ::File.ctime(d) }
+        end
+
+        def load_cache
+          begin
+            Chef::JSONCompat.from_json(Chef::FileCache.load("revision-deploys/#{new_resource.name}"))
+          rescue Chef::Exceptions::FileNotFound
+            sorted_releases_from_filesystem
+          end
+        end
+
+        def save_cache(cache)
+          Chef::FileCache.store("revision-deploys/#{new_resource.name}", cache.to_json)
+          cache
+        end
+
+      end
+    end
+  end
+end