Merge pull request #982 from keybase/strib/gh-KBFS-3474-object-sizes

tree: add a Size() method for getting plaintext size

2 files changed, 12 insertions, 0 deletions

diff --git a/plumbing/storer/object.go b/plumbing/storer/object.go
index 92aa629..2ac9b09 100644
--- a/plumbing/storer/object.go
+++ b/plumbing/storer/object.go
@@ -40,6 +40,8 @@ type EncodedObjectStorer interface {
 	// HasEncodedObject returns ErrObjNotFound if the object doesn't
 	// exist.  If the object does exist, it returns nil.
 	HasEncodedObject(plumbing.Hash) error
+	// EncodedObjectSize returns the plaintext size of the encoded object.
+	EncodedObjectSize(plumbing.Hash) (int64, error)
 }
 
 // DeltaObjectStorer is an EncodedObjectStorer that can return delta
diff --git a/plumbing/storer/object_test.go b/plumbing/storer/object_test.go
index 6b4fe0f..bc22f7b 100644
--- a/plumbing/storer/object_test.go
+++ b/plumbing/storer/object_test.go
@@ -141,6 +141,16 @@ func (o *MockObjectStorage) HasEncodedObject(h plumbing.Hash) error {
 	return plumbing.ErrObjectNotFound
 }
 
+func (o *MockObjectStorage) EncodedObjectSize(h plumbing.Hash) (
+	size int64, err error) {
+	for _, o := range o.db {
+		if o.Hash() == h {
+			return o.Size(), nil
+		}
+	}
+	return 0, plumbing.ErrObjectNotFound
+}
+
 func (o *MockObjectStorage) EncodedObject(t plumbing.ObjectType, h plumbing.Hash) (plumbing.EncodedObject, error) {
 	for _, o := range o.db {
 		if o.Hash() == h {