Major refactoring of the urls (#5)

src/serve_style.js

@@ -0,0 +1,48 @@
+'use strict';
+
+var path = require('path');
+
+var clone = require('clone'),
+    express = require('express');
+
+
+module.exports = function(repo, options, id, reportVector) {
+  var app = express().disable('x-powered-by');
+
+  var rootPath = path.join(process.cwd(), options.root || '');
+
+  var styleUrl = path.join(rootPath, options.style);
+
+  var styleJSON = clone(require(styleUrl));
+  Object.keys(styleJSON.sources).forEach(function(name) {
+    var source = styleJSON.sources[name];
+    var url = source.url;
+    if (url.lastIndexOf('mbtiles:', 0) === 0) {
+      var mbtiles = url.substring('mbtiles://'.length);
+      var identifier = reportVector(mbtiles);
+      source.url = 'local://vector/' + identifier + '.json';
+    }
+  });
+  styleJSON.sprite = 'local://styles/{style_id}/sprite';
+  styleJSON.glyphs = 'local://fonts/{fonstack}/{range}.pbf';
+
+  repo[id] = styleJSON;
+
+  app.get('/styles/' + id + '.json', function(req, res, next) {
+    var fixUrl = function(url) {
+      return url.replace(
+          'local://', req.protocol + '://' + req.headers.host + '/');
+    };
+
+    var styleJSON_ = clone(styleJSON);
+    Object.keys(styleJSON_.sources).forEach(function(name) {
+      var source = styleJSON_.sources[name];
+      source.url = fixUrl(source.url);
+    });
+    styleJSON_.sprite = fixUrl(styleJSON_.sprite);
+    styleJSON_.glyphs = fixUrl(styleJSON_.glyphs);
+    return res.send(styleJSON_);
+  });
+
+  return app;
+};