Automatically create new track if the filename is different

apps/recorder/ChangeLog

@@ -32,4 +32,5 @@
 0.24: Can now specify `setRecording(true, {force:...` to not show a menu
 0.25: Widget now has `isRecording()` for retrieving recording status.
 0.26: Now record filename based on date
-0.27: Fix first ever recorded filename being log0 (now all are dated)
+0.27: Fix first ever recorded filename being log0 (now all are dated)
+0.28: Automatically create new track if the filename is different

apps/recorder/metadata.json

@@ -2,7 +2,7 @@
   "id": "recorder",
   "name": "Recorder",
   "shortName": "Recorder",
-  "version": "0.27",
+  "version": "0.28",
   "description": "Record GPS position, heart rate and more in the background, then download to your PC.",
   "icon": "app.png",
   "tags": "tool,outdoors,gps,widget",

apps/recorder/widget.js

@@ -241,9 +241,12 @@
     options = options||{};
     if (isOn && !settings.recording) {
       var date=(new Date()).toISOString().substr(0,10).replace(/-/g,""), trackNo=10;
-      if (!settings.file) { // if no filename set
-        settings.file = "recorder.log" + date + trackNo.toString(36) + ".csv";
-      } else if (require("Storage").list(settings.file).length){ // if file exists
+      function getTrackFilename() { return "recorder.log" + date + trackNo.toString(36) + ".csv"; }
+      if (!settings.file || !settings.file.startsWith("recorder.log" + date)) {
+        // if no filename set or date different, set up a new filename
+        settings.file = getTrackFilename();
+      }
+      if (require("Storage").list(settings.file).length){ // if file exists
         if (!options.force) { // if not forced, ask the question
           g.reset(); // work around bug in 2v17 and earlier where bg color wasn't reset
           return E.showPrompt(
@@ -266,7 +269,7 @@
           // new file - use the current date
           var newFileName;
           do { // while a file exists, add one to the letter after the date
-            newFileName = "recorder.log" + date + trackNo.toString(36) + ".csv";
+            newFileName = getTrackFilename();
             trackNo++;
           } while (require("Storage").list(newFileName).length);
           settings.file = newFileName;