New export functionality.

app/Export/ConfigurationFile.php

@@ -0,0 +1,55 @@
+<?php
+/**
+ * ConfigurationFile.php
+ * Copyright (C) 2016 Sander Dorigo
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace FireflyIII\Export;
+
+use FireflyIII\Models\ExportJob;
+
+/**
+ * Class ConfigurationFile
+ *
+ * @package FireflyIII\Export
+ */
+class ConfigurationFile
+{
+    /** @var  ExportJob */
+    private $job;
+
+    public function __construct(ExportJob $job)
+    {
+        $this->job = $job;
+    }
+
+    /**
+     * @return bool
+     */
+    public function make()
+    {
+        $fields = array_keys(get_class_vars(Entry::class));
+        $types  = Entry::getTypes();
+
+        $configuration = [
+            'date-format' => 'Y-m-d', // unfortunately, this is hard-coded.
+            'has-headers' => true,
+            'map'         => [], // we could build a map if necessary for easy re-import.
+            'roles'       => [],
+            'mapped'      => [],
+            'specifix'    => [],
+        ];
+        foreach ($fields as $field) {
+            $configuration['roles'][] = $types[$field];
+        }
+
+        $file = storage_path('export') . DIRECTORY_SEPARATOR . $this->job->key . '-configuration.json';
+        file_put_contents($file, json_encode($configuration, JSON_PRETTY_PRINT));
+
+        return $file;
+    }
+
+}