revision-deploy provider

Author: danielsdeleo

chef/lib/chef/provider/deploy/revision.rb

@@ -0,0 +1,70 @@
+#
+# Author:: Daniel DeLeo (<dan@kallistec.com>)
+# Copyright:: Copyright (c) 2009 Daniel DeLeo
+# 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.
+#
+
+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 << 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 load_cache
+          begin
+            JSON.parse(Chef::FileCache.load("revision-deploys/#{new_resource.name}"))
+          rescue
+            Chef::Exceptions::FileNotFound
+            save_cache([])
+          end
+        end
+        
+        def save_cache(cache)
+          Chef::FileCache.store("revision-deploys/#{new_resource.name}", cache.to_json)
+          cache
+        end
+        
+      end
+    end
+  end
+end

chef/spec/unit/provider/deploy/revision_spec.rb

@@ -0,0 +1,72 @@
+#
+# Author:: Daniel DeLeo (<dan@kallistec.com>)
+# Copyright:: Copyright (c) 2008 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 File.expand_path(File.join(File.dirname(__FILE__),"..", "..", "..", "spec_helper"))
+
+describe Chef::Provider::Deploy::Revision do
+  
+  before do
+    Chef::Config[:file_cache_path] = '/tmp/foo'
+    @resource = Chef::Resource::Deploy.new("/my/deploy/dir")
+    @resource.revision("8a3195bf3efa246f743c5dfa83683201880f935c")
+    @node = Chef::Node.new
+    @provider = Chef::Provider::Deploy::Revision.new(@node, @resource)
+    @provider.load_current_resource
+    @runner = mock("runnah", :null_object => true)
+    Chef::Runner.stub!(:new).and_return(@runner)
+    @expected_release_dir = "/my/deploy/dir/releases/8a3195bf3efa246f743c5dfa83683201880f935c"
+  end
+  
+  after do
+    # Make sure we don't keep any state in our tests
+    FileUtils.rm_rf Chef::FileCache.create_cache_path('revision-deploys',false)
+  end
+  
+  
+  it "uses the resolved revision from the SCM as the release slug" do
+    @provider.scm_provider.stub!(:revision_slug).and_return("uglySlugly")
+    @provider.send(:release_slug).should == "uglySlugly"
+  end
+  
+  it "deploys to a dir named after the revision" do
+    @provider.release_path.should == @expected_release_dir
+  end
+  
+  it "stores the release dir in the file cache when copying the cached repo" do
+    FileUtils.stub!(:mkdir_p)
+    FileUtils.stub!(:cp_r)
+    @provider.copy_cached_repo
+    @provider.stub!(:release_slug).and_return("73219b87e977d9c7ba1aa57e9ad1d88fa91a0ec2")
+    @provider.load_current_resource
+    @provider.copy_cached_repo
+    second_release = "/my/deploy/dir/releases/73219b87e977d9c7ba1aa57e9ad1d88fa91a0ec2"
+    @provider.all_releases.should == [@expected_release_dir,second_release]
+  end
+  
+  it "removes a release from the file cache when it's deleted by :cleanup!" do
+    %w{first second third fourth fifth latest}.each do |release_name|
+      @provider.send(:release_created, release_name)
+    end
+    @provider.all_releases.should == %w{first second third fourth fifth latest}
+    
+    FileUtils.stub(:rm_rf)
+    @provider.cleanup!
+    @provider.all_releases.should == %w{second third fourth fifth latest}
+  end
+  
+end