fix relative path specifier for photoswipe import (fix #545)

src/sigal/themes/colorbox/templates/album.html

@@ -41,7 +41,7 @@
         <a href="{{ media.url }}" title="{{ media.title }}"
       {% endif %}
         >
-          <img src="{{ media.thumbnail }}" alt="{{ media.url }}"
+          <img src="{{ media.thumbnail }}" alt="{{ media.title }}"
                title="{{ media.title }}">
         </a>
       </div>

src/sigal/themes/photoswipe/templates/album_items.html

@@ -19,7 +19,7 @@
              data-pswp-height="600"
           {% endif %}
           >
-            <img src="{{ media.thumbnail }}" alt="{{ media.url }}" />
+            <img src="{{ media.thumbnail }}" alt="{{ media.title }}" />
           </a>
           <div class="pswp-caption-content">
             {{ img_description(media, with_big=False) }}

src/sigal/utils.py

@@ -82,6 +82,8 @@ def url_from_path(path):
 
     if os.sep != "/":
         path = "/".join(path.split(os.sep))
+    if path[0] != ".":
+        path = f"./{path}"
     return quote(path)