Stub out chart repository interface

pkg/repository/repository.go

@@ -0,0 +1,49 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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 repository
+
+import (
+	"github.com/kubernetes/helm/pkg/common"
+
+	"regexp"
+)
+
+// Repository abstracts a repository that holds charts, which can be
+// used in a Deployment Manager configuration. There can be multiple
+// repository implementations.
+type Repository interface {
+	// GetRepositoryName returns the name of this repository
+	GetRepositoryName() string
+	// GetRepositoryChart returns the chart of this repository.
+	GetRepositoryChart() common.RepositoryChart
+	// GetRepositoryShortURL returns the short URL for this repository.
+	GetRepositoryShortURL() string
+	// GetRepositoryFormat returns the format of this repository.
+	GetRepositoryFormat() common.RepositoryFormat
+
+	// ListCharts lists charts in this repository whose string values conform to the
+	// supplied regular expression, or all charts, if the regular expression is nil.
+	ListCharts(regex *regexp.Regexp) ([]*common.Chart, error)
+	GetChart(name string) (*common.Chart, error)
+}
+
+// ObjectStorageRepository abstracts a repository that resides in an Object Storage, for
+// example Google Cloud Storage or AWS S3, etc.
+type ObjectStorageRepository interface {
+	Repository // An ObjectStorageRepository is a Repository.
+	GetBucket() string
+}