1 files changed, 27 insertions, 0 deletions
diff --git a/reachability/walk_verify.go b/reachability/walk_verify.go
new file mode 100644
index 00000000..46798f5a
--- /dev/null
+++ b/reachability/walk_verify.go
@@ -0,0 +1,27 @@
+package reachability
+
+import (
+	"codeberg.org/lindenii/furgit/object"
+	"codeberg.org/lindenii/furgit/objectid"
+	"codeberg.org/lindenii/furgit/objecttype"
+)
+
+func (walk *Walk) validateCommitObject(id objectid.ObjectID) error {
+	ty, err := walk.readHeaderType(id)
+	if err != nil {
+		return err
+	}
+
+	if ty != objecttype.TypeCommit {
+		return &ErrObjectType{OID: id, Got: ty, Want: objecttype.TypeCommit}
+	}
+
+	content, err := walk.readBytesContent(id)
+	if err != nil {
+		return err
+	}
+
+	_, err = object.ParseCommit(content, id.Algorithm())
+
+	return err
+}