From ad1c9b99aee06d70b8f062147e7984ec29d86ce5 Mon Sep 17 00:00:00 2001
From: Bryan Boreham <bryan@weave.works>
Date: Thu, 14 Jan 2021 16:20:51 +0000
Subject: [PATCH] Suggest retry if lockfile disappears

---
 lockfile.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lockfile.go b/lockfile.go
index 76bdfbe..d50451b 100644
--- a/lockfile.go
+++ b/lockfile.go
@@ -139,6 +139,10 @@ func (l Lockfile) TryLock() error {
 	proc, err := l.GetOwner()
 	switch err {
 	default:
+		if os.IsNotExist(err) {
+			// tell user that a retry would be a good idea
+			return ErrNotExist
+		}
 		// Other errors -> defensively fail and let caller handle this
 		return err
 	case nil: