[tiller] move the Manifest type to its own pkg

It's really easy to cause an import cycle on this type; this resolves
the problem by moving it out of the tiller pkg into its own. An alias is
left behind in order to prevent downstream breakage.

pkg/manifest/doc.go

@@ -0,0 +1,23 @@
+/*
+Copyright The Helm Authors.
+
+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.
+*/
+
+/*Package manifest contains tools for working with kubernetes manifests.
+
+Much like other parts of helm, it does not generally require that the manifests
+be correct yaml, so these functions can be run on broken manifests to aid in
+user debugging
+*/
+package manifest // import "k8s.io/helm/pkg/manifest"

pkg/manifest/types.go

@@ -0,0 +1,28 @@
+/*
+Copyright The Helm Authors.
+
+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.
+*/
+
+package manifest
+
+import (
+	"k8s.io/helm/pkg/releaseutil"
+)
+
+// Manifest represents a manifest file, which has a name and some content.
+type Manifest struct {
+	Name    string
+	Content string
+	Head    *releaseutil.SimpleHead
+}

pkg/tiller/hooks.go

@@ -27,6 +27,7 @@ import (
 
 	"k8s.io/helm/pkg/chartutil"
 	"k8s.io/helm/pkg/hooks"
+	"k8s.io/helm/pkg/manifest"
 	"k8s.io/helm/pkg/proto/hapi/release"
 	util "k8s.io/helm/pkg/releaseutil"
 )
@@ -52,12 +53,7 @@ var deletePolices = map[string]release.Hook_DeletePolicy{
 	hooks.BeforeHookCreation: release.Hook_BEFORE_HOOK_CREATION,
 }
 
-// Manifest represents a manifest file, which has a name and some content.
-type Manifest struct {
-	Name    string
-	Content string
-	Head    *util.SimpleHead
-}
+type Manifest = manifest.Manifest
 
 type result struct {
 	hooks   []*release.Hook