From 2b50bf38ec7b7aec6dd5b0870abf376677b02928 Mon Sep 17 00:00:00 2001
From: Dave Conway-Jones <conway@uk.ibm.com>
Date: Wed, 14 Dec 2022 11:45:33 +0000
Subject: [PATCH] Fix tail to update status

and retry if file goes away and comes back
---
 storage/tail/28-tail.js   | 4 ++++
 storage/tail/package.json | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/storage/tail/28-tail.js b/storage/tail/28-tail.js
index 0f741604..4bdb0fc7 100644
--- a/storage/tail/28-tail.js
+++ b/storage/tail/28-tail.js
@@ -16,6 +16,7 @@ module.exports = function(RED) {
 
         var fileTail = function() {
             if (fs.existsSync(node.filename)) {
+                node.status({ });
                 if (node.filetype === "text") {
                     node.tail = new Tail(node.filename,{separator:node.split, flushAtEOF:true});
                 }
@@ -40,6 +41,7 @@ module.exports = function(RED) {
                 node.tail.on("error", function(err) {
                     node.status({ fill: "red",shape:"ring", text: "node-red:common.status.error" });
                     node.error(err.toString());
+                    if (err.code ==="ENOENT") { scheduleRestart(); }
                 });
             }
             else {
@@ -51,6 +53,8 @@ module.exports = function(RED) {
         var scheduleRestart = function() {
             node.tout = setTimeout(function() {
                 node.tout = null;
+                if (node.tail) { node.tail.unwatch(); }
+                delete node.tail;
                 fileTail();
             }, 10000);
         };
diff --git a/storage/tail/package.json b/storage/tail/package.json
index d95ade61..a6d542cd 100644
--- a/storage/tail/package.json
+++ b/storage/tail/package.json
@@ -1,6 +1,6 @@
 {
     "name": "node-red-node-tail",
-    "version": "0.3.2",
+    "version": "0.4.0",
     "description": "A node to tail files for Node-RED",
     "dependencies": {
         "tail": "^2.2.4"