From c4a89ede8d80db5d7b236388ccc22532ba550abd Mon Sep 17 00:00:00 2001
From: Philip O'Toole <philip.otoole@yahoo.com>
Date: Mon, 13 Apr 2020 09:28:43 -0400
Subject: [PATCH] Add helper function for Raft log size

---
 store/store.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/store/store.go b/store/store.go
index 5b8bcbda..abea1d0a 100644
--- a/store/store.go
+++ b/store/store.go
@@ -986,6 +986,15 @@ func (s *Store) DeregisterObserver(o *raft.Observer) {
 	s.raft.DeregisterObserver(o)
 }
 
+// logSize returns the size of the Raft log on disk.
+func (s *Store) logSize() (int64, error) {
+	fi, err := os.Stat(filepath.Join(s.raftDir, "raft.db"))
+	if err != nil {
+		return 0, err
+	}
+	return fi.Size(), nil
+}
+
 type fsmSnapshot struct {
 	database []byte
 	meta     []byte