htdocs: Add script to auto-refresh streets etc.

htdocs/geojson/update.php

@@ -0,0 +1,16 @@
+<?php
+	$fn = "/tmp/lifo_update_ts";
+	$ctime = time();
+	$ltime = (int)(file_get_contents($fn));
+	$ntime = $ltime + 60*1 * 30;
+	if (isset($_GET['force']))
+		$ntime = 0;
+	if ($ctime > $ntime) {
+		file_put_contents($fn, $ctime);
+		echo "Downloading... ";
+		flush();
+		system("cd /srv/http/maps.linux-forks.de/geojson/; ./update_all.sh");
+	} else {
+		echo "Next update in " . intval(($ntime - $ctime) / 60) . " minutes.";
+	}
+?>

htdocs/geojson/update_all.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+function fetch() {
+	"./fetch_$1.sh" | json_reformat -m > "$1.json.tmp"
+	rm -f "$1.json"
+	mv "$1.json.tmp" "$1.json"
+}
+
+fetch streets
+fetch city_outlines
+
+echo "OK."

htdocs/mapscript.js

@@ -349,6 +349,13 @@ load_geojson("TL Access (tech layer)", "./geojson/trainlines_access_beta.json",
 load_geojson("Railroad Tracks", "./geojson/trains.json", "train", "auto", 0, style_trains);
 load_geojson("Cities", "./geojson/city_outlines.json", "outline", "auto", 1, style_outlines);
 
+function update_geojson() {
+	var xhttp_ps = new XMLHttpRequest();
+	xhttp_ps.open("GET", "https://notsyncing.net/maps.linux-forks.de/geojson/update.php", true);
+	xhttp_ps.send();
+}
+update_geojson();
+
 L.control.scale().addTo(mymap);
 
 function resolve_latlng(latlng, recenter = 0) {