1 files changed, 46 insertions, 0 deletions
diff --git a/format/pack/ingest/records.go b/format/pack/ingest/records.go
new file mode 100644
index 00000000..06b7f708
--- /dev/null
+++ b/format/pack/ingest/records.go
@@ -0,0 +1,46 @@
+package ingest
+
+import (
+	"codeberg.org/lindenii/furgit/objectid"
+	"codeberg.org/lindenii/furgit/objecttype"
+)
+
+// objectRecord stores metadata for one packed object entry.
+type objectRecord struct {
+	// offset is the entry start offset in the pack file.
+	offset uint64
+	// headerLen is packed entry header length in bytes.
+	headerLen uint32
+	// packedLen is total packed entry length in bytes.
+	packedLen uint64
+	// crc32 is the CRC over the full packed entry.
+	crc32 uint32
+	// packedType is the entry type tag from the pack stream.
+	packedType objecttype.Type
+	// realType is canonical object type after delta resolution.
+	realType objecttype.Type
+	// declaredSize is the declared output object size for this entry.
+	declaredSize int64
+	// dataOffset is compressed payload start offset for this entry.
+	dataOffset uint64
+	// baseOffset is OFS base offset when packedType is OFS delta.
+	baseOffset uint64
+	// baseObject is REF base object ID when packedType is REF delta.
+	baseObject objectid.ObjectID
+	// objectID is final resolved object ID.
+	objectID objectid.ObjectID
+	// resolved reports whether objectID/realType are finalized.
+	resolved bool
+}
+
+// ofsDeltaRef maps one OFS delta record to its base offset.
+type ofsDeltaRef struct {
+	baseOffset uint64
+	recordIdx  int
+}
+
+// refDeltaRef maps one REF delta record to its base object ID.
+type refDeltaRef struct {
+	baseObject objectid.ObjectID
+	recordIdx  int
+}