Initial commit

vendor/github.com/hyperhq/hypercli/image/rootfs_unix.go

@@ -0,0 +1,23 @@
+// +build !windows
+
+package image
+
+import "github.com/hyperhq/hypercli/layer"
+
+// RootFS describes images root filesystem
+// This is currently a placeholder that only supports layers. In the future
+// this can be made into a interface that supports different implementations.
+type RootFS struct {
+	Type    string         `json:"type"`
+	DiffIDs []layer.DiffID `json:"diff_ids,omitempty"`
+}
+
+// ChainID returns the ChainID for the top layer in RootFS.
+func (r *RootFS) ChainID() layer.ChainID {
+	return layer.CreateChainID(r.DiffIDs)
+}
+
+// NewRootFS returns empty RootFS struct
+func NewRootFS() *RootFS {
+	return &RootFS{Type: "layers"}
+}