Prevent needless retention of node status messages

packages/node_modules/@node-red/editor-api/lib/editor/comms.js

@@ -33,8 +33,6 @@ var activeConnections = [];
 
 var anonymousUser;
 
-var retained = {};
-
 var heartbeatTimer;
 var lastSentTime;
 

packages/node_modules/@node-red/nodes/core/common/21-debug.js

@@ -21,8 +21,11 @@ module.exports = function(RED) {
         this.tosidebar = n.tosidebar;
         if (this.tosidebar === undefined) { this.tosidebar = true; }
         this.active = (n.active === null || typeof n.active === "undefined") || n.active;
-        if (this.tostatus) { this.status({fill:"grey", shape:"ring"}); }
-        else { this.status({}); }
+        if (this.tostatus) {
+            this.status({fill:"grey", shape:"ring"});
+            this.oldState = "{}";
+        }
+
         var hasStatExpression = (n.statusType === "jsonata");
         var statExpression = hasStatExpression ? n.statusVal : null;
 
@@ -97,7 +100,11 @@ module.exports = function(RED) {
                 }
             }
         }
-
+        this.on("close", function() {
+            if (this.oldState) {
+                this.status({});
+            }
+        })
         this.on("input", function(msg, send, done) {
             if (msg.hasOwnProperty("status") && msg.status.hasOwnProperty("source") && msg.status.source.hasOwnProperty("id") && (msg.status.source.id === node.id)) {
                 done();
@@ -202,13 +209,8 @@ module.exports = function(RED) {
     function setNodeState(node,state) {
         if (state) {
             node.active = true;
-            if (node.tostatus) { node.status({fill:"grey", shape:"dot"}); }
         } else {
             node.active = false;
-            if (node.tostatus && node.hasOwnProperty("oldStatus")) {
-                node.oldStatus.shape = "dot";
-                node.status(node.oldStatus);
-            }
         }
     }
 

packages/node_modules/@node-red/nodes/core/function/10-function.js

@@ -127,6 +127,8 @@ module.exports = function(RED) {
         node.topic = n.topic;
         node.outstandingTimers = [];
         node.outstandingIntervals = [];
+        node.clearStatus = false;
+
         var sandbox = {
             console:console,
             util:util,
@@ -163,6 +165,7 @@ module.exports = function(RED) {
                     node.on.apply(node, arguments);
                 },
                 status: function() {
+                    node.clearStatus = true;
                     node.status.apply(node, arguments);
                 }
             },
@@ -389,7 +392,9 @@ module.exports = function(RED) {
                 while (node.outstandingIntervals.length > 0) {
                     clearInterval(node.outstandingIntervals.pop());
                 }
-                node.status({});
+                if (node.clearStatus) {
+                    node.status({});
+                }
             });
 
             promise.then(function (v) {

packages/node_modules/@node-red/runtime/lib/api/comms.js

@@ -38,12 +38,20 @@ function handleCommsEvent(event) {
     publish(event.topic,event.data,event.retain);
 }
 function handleStatusEvent(event) {
-    var status = {
-        text: event.status.text,
-        fill: event.status.fill,
-        shape: event.status.shape
-    };
-    publish("status/"+event.id,status,true);
+    if (!event.status) {
+        delete retained["status/"+event.id]
+    } else if (!event.status.text && !event.status.fill && !event.status.shape) {
+        if (retained["status/"+event.id]) {
+            publish("status/"+event.id,{},false);
+        }
+    } else {
+        var status = {
+            text: event.status.text,
+            fill: event.status.fill,
+            shape: event.status.shape
+        };
+        publish("status/"+event.id,status,true);
+    }
 }
 function handleRuntimeEvent(event) {
     runtime.log.trace("runtime event: "+JSON.stringify(event));

packages/node_modules/@node-red/runtime/lib/flows/Subflow.js

@@ -18,6 +18,7 @@ const clone = require("clone");
 const Flow = require('./Flow').Flow;
 const context = require('../nodes/context');
 const util = require("util");
+const events = require("../events");
 
 const redUtil = require("@node-red/util").util;
 const flowUtil = require("./util");
@@ -308,7 +309,26 @@ class Subflow extends Flow {
         super.start(diff);
     }
 
+    /**
+     * Stop this subflow.
+     * The `stopList` argument helps define what needs to be stopped in the case
+     * of a modified-nodes/flows type deploy.
+     * @param  {[type]} stopList    [description]
+     * @param  {[type]} removedList [description]
+     * @return {[type]}             [description]
+     */
+    stop(stopList, removedList) {
+        const nodes = Object.keys(this.activeNodes);
+        return super.stop(stopList, removedList).then(res => {
+            nodes.forEach(id => {
+                events.emit("node-status",{
+                    id: id
+                });
+            })
+            return res;
+        })
 
+    }
     /**
      * Get environment variable of subflow
      * @param {String}   name   name of env var