From 947bf81a33c6e4e5d21c8b36f9317fe00b84f6ae Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Sun, 24 May 2026 13:41:34 +0000
Subject: ref/store/memory: Simple memory-backed ref store

---
 ref/store/memory/store.go | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 ref/store/memory/store.go

(limited to 'ref/store/memory/store.go')

diff --git a/ref/store/memory/store.go b/ref/store/memory/store.go
new file mode 100644
index 00000000..d77f72e2
--- /dev/null
+++ b/ref/store/memory/store.go
@@ -0,0 +1,42 @@
+package memory
+
+import (
+	"sync"
+
+	objectid "codeberg.org/lindenii/furgit/object/id"
+	refstore "codeberg.org/lindenii/furgit/ref/store"
+)
+
+// Store reads and writes one in-memory Git reference namespace.
+//
+// Labels: Close-Caller.
+type Store struct {
+	mu   sync.RWMutex
+	algo objectid.Algorithm
+	refs map[string]storedRef
+}
+
+var (
+	_ refstore.Reader        = (*Store)(nil)
+	_ refstore.Transactioner = (*Store)(nil)
+	_ refstore.Batcher       = (*Store)(nil)
+)
+
+// New builds one empty in-memory reference store for one object format.
+func New(algo objectid.Algorithm) (*Store, error) {
+	if algo.Size() == 0 {
+		return nil, objectid.ErrInvalidAlgorithm
+	}
+
+	return &Store{
+		algo: algo,
+		refs: make(map[string]storedRef),
+	}, nil
+}
+
+// Close closes the in-memory reference store.
+//
+// Labels: MT-Unsafe.
+func (store *Store) Close() error {
+	return nil
+}
-- 
cgit v1.3.1-10-gc9f91