From 3e884f5f3d42cbc4874a04da31dde10314b0cfad Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Thu, 26 Mar 2026 09:17:14 +0000
Subject: format: Move commitgraph and packfile here

---
 format/commitgraph/read/reader.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 format/commitgraph/read/reader.go

(limited to 'format/commitgraph/read/reader.go')

diff --git a/format/commitgraph/read/reader.go b/format/commitgraph/read/reader.go
new file mode 100644
index 00000000..d5c84a70
--- /dev/null
+++ b/format/commitgraph/read/reader.go
@@ -0,0 +1,16 @@
+package read
+
+import objectid "codeberg.org/lindenii/furgit/object/id"
+
+// Reader provides read-only access to one mmap-backed commit-graph snapshot.
+//
+// It is safe for concurrent read-only queries.
+// Values returned by Reader methods are only valid until the reader is closed
+// when explicitly documented on that method.
+type Reader struct {
+	algo        objectid.Algorithm
+	hashVersion uint8
+
+	layers []layer
+	total  uint32
+}
-- 
cgit v1.3.1-10-gc9f91