Add script to list album photos with original filename, add macro for single photo with caption

_scripts/list-gallery-photos.php

@@ -0,0 +1,20 @@
+<?php
+require __DIR__ . '/../_php/autoload.php';
+
+use Symfony\Component\Yaml\Yaml;
+
+foreach (glob('gallery/*') as $sAlbumPath) {
+    if (!is_dir($sAlbumPath)) continue;
+    $sAlbum = basename($sAlbumPath);
+    foreach (glob($sAlbumPath . '/*.md') as $sFile) {
+        $sPhoto = basename($sFile);
+        $sContents = file_get_contents($sFile);
+        $aContents = explode("\n", $sContents);
+        $aParts = explode('--', implode("\n", array_slice($aContents, 1)));
+        $aYaml = Yaml::parse(trim(str_replace("  - \n", null, current($aParts))));
+        if (isset($aYaml['file'])) {
+            $sOriginal = basename($aYaml['file'], '.JPG');
+            printf("[%s] %s = %s\n", $sAlbum, $sPhoto, $sOriginal);
+        }
+    }
+}