From bfa0a3f5f18b752a6ebd3d5b37411c6871f7bb17 Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Wed, 25 Mar 2026 14:30:31 +0000
Subject: *: objectstore -> object/store

---
 object/store/chain/header.go | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 object/store/chain/header.go

(limited to 'object/store/chain/header.go')

diff --git a/object/store/chain/header.go b/object/store/chain/header.go
new file mode 100644
index 00000000..e66a5aae
--- /dev/null
+++ b/object/store/chain/header.go
@@ -0,0 +1,28 @@
+package chain
+
+import (
+	"errors"
+	"fmt"
+
+	objectid "codeberg.org/lindenii/furgit/object/id"
+	"codeberg.org/lindenii/furgit/object/store"
+	objecttype "codeberg.org/lindenii/furgit/object/type"
+)
+
+// ReadHeader reads object header data from the first backend that has it.
+func (chain *Chain) ReadHeader(id objectid.ObjectID) (objecttype.Type, int64, error) {
+	for i, backend := range chain.backends {
+		ty, size, err := backend.ReadHeader(id)
+		if err == nil {
+			return ty, size, nil
+		}
+
+		if errors.Is(err, objectstore.ErrObjectNotFound) {
+			continue
+		}
+
+		return objecttype.TypeInvalid, 0, fmt.Errorf("objectstore: backend %d read header: %w", i, err)
+	}
+
+	return objecttype.TypeInvalid, 0, objectstore.ErrObjectNotFound
+}
-- 
cgit v1.3.1-10-gc9f91