Fix resizing & add logs

.gitignore

@@ -4,12 +4,14 @@ output/*.html
 # Downloaded QR codes
 output/qr-codes
 
+# Served icons
+output/icons
+
 # Server-side cache
 cache
 
 # Local tests
 .test
-.
 
 # Kate
 *.kate-swp

php/utils/room-icons.php

@@ -16,8 +16,8 @@
      * @param string $size Image dimensions.
      */
     function room_icon_path_resized(string $room_id, string $size): string {
-        global $ROOM_ICONS_CACHE;
+        global $ROOM_ICONS;
-        return "$ROOM_ICONS_CACHE/$room_id-$size";
+        return "$ROOM_ICONS/$room_id-$size";
     }
 
     /**
@@ -75,7 +75,9 @@
         // Resize image
         $gd_image = imagecreatefromstring($icon_cached_contents);
         $gd_resized = imagescale($gd_image, $width, $height);
-        imagewebp($gd_resized, $icon_resized);
+        if (!imagewebp($gd_resized, $icon_resized)) {
+            log_info("Converting image for $room_id to $size failed");
+        }
         return room_icon_path_relative($room_id, $size);
     }