Implement globHandler without async.

Author: RubenVerborgh

lib/handlers/get.js

@@ -5,7 +5,6 @@ var glob = require('glob')
 var _path = require('path')
 var $rdf = require('rdflib')
 var S = require('string')
-var async = require('async')
 var Negotiator = require('negotiator')
 const url = require('url')
 const mime = require('mime-types')
@@ -161,35 +160,28 @@ function globHandler (req, res, next) {
     let reqOrigin = utils.getBaseUri(req)
 
     debugGlob('found matches ' + matches)
-    async.each(matches, function (match, done) {
+    Promise.all(matches.map(match => new Promise((resolve, reject) => {
       var baseUri = utils.filenameToBaseUri(match, reqOrigin, root)
       fs.readFile(match, {encoding: 'utf8'}, function (err, fileData) {
         if (err) {
           debugGlob('error ' + err)
-          return done(null)
+          return resolve()
         }
         aclAllow(match, req, res, function (allowed) {
           if (!S(match).endsWith('.ttl') || !allowed) {
-            return done(null)
+            return resolve()
           }
           try {
-            $rdf.parse(
-              fileData,
-              globGraph,
-              baseUri,
-              'text/turtle')
+            $rdf.parse(fileData, globGraph, baseUri, 'text/turtle')
           } catch (parseErr) {
-            debugGlob('error in parsing the files' + parseErr)
+            debugGlob(`error parsing ${match}: ${parseErr}`)
           }
-          return done(null)
+          return resolve()
         })
       })
-    }, function () {
-      var data = $rdf.serialize(
-        undefined,
-        globGraph,
-        requestUri,
-        'text/turtle')
+    })))
+    .then(() => {
+      var data = $rdf.serialize(undefined, globGraph, requestUri, 'text/turtle')
       // TODO this should be added as a middleware in the routes
       res.setHeader('Content-Type', 'text/turtle')
       debugGlob('returning turtle')