Comment more packages to pass go lint

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

metadata/containers.go

@@ -22,6 +22,7 @@ type containerStore struct {
 	tx *bolt.Tx
 }
 
+// NewContainerStore returns a Store backed by an underlying bolt DB
 func NewContainerStore(tx *bolt.Tx) containers.Store {
 	return &containerStore{
 		tx: tx,

metadata/content.go

@@ -417,11 +417,7 @@ func (nw *namespacedWriter) commit(ctx context.Context, tx *bolt.Tx, size int64,
 	if err := boltutil.WriteLabels(bkt, base.Labels); err != nil {
 		return err
 	}
-	if err := bkt.Put(bucketKeySize, sizeEncoded); err != nil {
-		return err
-	}
-
-	return nil
+	return bkt.Put(bucketKeySize, sizeEncoded)
 }
 
 func (nw *namespacedWriter) Status() (content.Status, error) {
@@ -497,9 +493,5 @@ func writeInfo(info *content.Info, bkt *bolt.Bucket) error {
 		return err
 	}
 
-	if err := bkt.Put(bucketKeySize, sizeEncoded); err != nil {
-		return err
-	}
-
-	return nil
+	return bkt.Put(bucketKeySize, sizeEncoded)
 }

metadata/images.go

@@ -22,6 +22,7 @@ type imageStore struct {
 	tx *bolt.Tx
 }
 
+// NewImageStore returns a store backed by a bolt DB
 func NewImageStore(tx *bolt.Tx) images.Store {
 	return &imageStore{tx: tx}
 }
@@ -281,7 +282,7 @@ func writeImage(bkt *bolt.Bucket, image *images.Image) error {
 func encodeSize(size int64) ([]byte, error) {
 	var (
 		buf         [binary.MaxVarintLen64]byte
-		sizeEncoded []byte = buf[:]
+		sizeEncoded = buf[:]
 	)
 	sizeEncoded = sizeEncoded[:binary.PutVarint(sizeEncoded, size)]
 

metadata/namespaces.go

@@ -14,6 +14,7 @@ type namespaceStore struct {
 	tx *bolt.Tx
 }
 
+// NewNamespaceStore returns a store backed by a bolt DB
 func NewNamespaceStore(tx *bolt.Tx) namespaces.Store {
 	return &namespaceStore{tx: tx}
 }