format/commitgraph: Add initial commit-graph support

1 files changed, 20 insertions, 0 deletions

diff --git a/format/commitgraph/commits.go b/format/commitgraph/commits.go
new file mode 100644
index 00000000..0f5313e9
--- /dev/null
+++ b/format/commitgraph/commits.go
@@ -0,0 +1,20 @@
+package commitgraph
+
+import "codeberg.org/lindenii/furgit/objectid"
+
+// Commit stores decoded commit-graph record data.
+type Commit struct {
+	OID            objectid.ObjectID
+	TreeOID        objectid.ObjectID
+	Parent1        ParentRef
+	Parent2        ParentRef
+	ExtraParents   []Position
+	CommitTimeUnix int64
+	GenerationV1   uint32
+	GenerationV2   uint64
+}
+
+// NumCommits returns total commits across loaded layers.
+func (reader *Reader) NumCommits() uint32 {
+	return reader.total
+}