core: Storage, removing err returning *Storages

2 files changed, 17 insertions, 2 deletions

diff --git a/core/reference.go b/core/reference.go
index 7d3f378..3ec95a0 100644
--- a/core/reference.go
+++ b/core/reference.go
@@ -132,6 +132,21 @@ func (r *Reference) IsTag() bool {
 	return strings.HasPrefix(string(r.n), refTagPrefix)
 }
 
+// Strings dump a reference as a [2]string
+func (r *Reference) Strings() [2]string {
+	var o [2]string
+	o[0] = r.Name().String()
+
+	switch r.Type() {
+	case HashReference:
+		o[1] = r.Hash().String()
+	case SymbolicReference:
+		o[1] = symrefPrefix + r.Target().String()
+	}
+
+	return o
+}
+
 // ReferenceSliceIter implements ReferenceIter. It iterates over a series of
 // references stored in a slice and yields each one in turn when Next() is
 // called.
diff --git a/core/storage.go b/core/storage.go
index 70a47e6..cb8f45d 100644
--- a/core/storage.go
+++ b/core/storage.go
@@ -2,8 +2,8 @@ package core
 
 // Storage storage of objects and references
 type Storage interface {
-	ObjectStorage() (ObjectStorage, error)
-	ReferenceStorage() (ReferenceStorage, error)
+	ObjectStorage() ObjectStorage
+	ReferenceStorage() ReferenceStorage
 }
 
 // ObjectStorage generic storage of objects