catch error reading pmtiles

(and ignore any)

CHANGELOG.md

@@ -1,6 +1,6 @@
 ### Change Log for Node-RED Worldmap
 
- - v4.6.0 - let default pmtiles be light/dark or monocolored.
+ - v4.6.1 - let default pmtiles be light/dark or monocolored.
  - v4.5.2 - Tidy up when pmtiles removed.
  - v4.5.0 - Fix pmtiles to look for maps in userdir rather than modules.
  - v4.4.0 - Add quad(copter) drone icon.

README.md

@@ -13,7 +13,7 @@ Feel free to [![](https://img.shields.io/static/v1?label=Sponsor&message=%E2%9D%
 
 ### Updates
 
-- v4.6.0  - let default pmtiles be light/dark or monocolored.
+- v4.6.1  - let default pmtiles be light/dark or monocolored.
 - v4.5.2  - Tidy up when pmtiles removed.
 - v4.5.0  - Fix pmtiles to look for maps in userdir rather than modules
 - v4.4.0  - Add quad(copter) drone icon.

package.json

@@ -1,6 +1,6 @@
 {
     "name": "node-red-contrib-web-worldmap",
-    "version": "4.6.0",
+    "version": "4.6.1",
     "description": "A Node-RED node to provide a web page of a world map for plotting things on.",
     "dependencies": {
         "@turf/bezier-spline": "~6.5.0",

worldmap.js

@@ -13,11 +13,12 @@ module.exports = function(RED) {
     if (fs.existsSync((__dirname + '/mapserv'))) {
         RED.httpNode.use("/cgi-bin/mapserv", require('cgi')(__dirname + '/mapserv'));
     }
-    var pmtiles = fs.readdirSync(__dirname + '/worldmap').filter(fn => fn.endsWith('.pmtiles'));
-    pmtiles.forEach(file => { fs.unlinkSync(__dirname + '/worldmap/'+file); })
-    pmtiles = fs.readdirSync(RED.settings.userDir).filter(fn => fn.endsWith('.pmtiles'));
+    var pmtiles;
     var pmtilesopts;
     try {
+        pmtiles = fs.readdirSync(__dirname + '/worldmap').filter(fn => fn.endsWith('.pmtiles'));
+        pmtiles.forEach(file => { fs.unlinkSync(__dirname + '/worldmap/'+file); })
+        pmtiles = fs.readdirSync(RED.settings.userDir).filter(fn => fn.endsWith('.pmtiles'));
         pmtilesopts = fs.readFileSync(RED.settings.userDir+'/pmtiles.opts');
         pmtilesopts = JSON.parse(pmtilesopts);
     }