Expand gallery functionality to automatic generation of index, slideshow and map files

_scripts/generate-gallery-yaml.php

@@ -0,0 +1,23 @@
+<?php
+require __DIR__ . '/../vendor/autoload.php';
+
+use Symfony\Component\Yaml\Yaml;
+
+writeMetaYaml($argv[1]);
+
+function writeMetaYaml($sDir) {
+    $sDir = rtrim($sDir, '"\'/\\');
+    $aMeta = [
+        'gallery' => ['name' => '', 'title' => '', 'description' => ''],
+        'files' => null
+    ];
+    if (!is_dir($sDir)) {
+        die('Directory does not exist');
+    }
+    $aFiles = glob($sDir . '/*.jpg');
+    foreach ($aFiles as $sFile) {
+        $aMeta['files'][basename($sFile)] = ['title' => '', 'comment' => ''];
+    }
+    $sYaml = str_replace("''", null, Yaml::dump($aMeta, 4, 2));
+    file_put_contents($sDir . '/meta.yaml', $sYaml);
+}