Photo gallery patch

.gitignore

@@ -3,4 +3,6 @@
 
 # Ignore local build
 Gemfile.lock
-_site/
+_site/
+*.jpg
+*.jpeg

_tools/download_gallery_photos.py

@@ -0,0 +1,96 @@
+#!/usr/bin/env python3
+import os
+import urllib.request
+import re
+
+
+def download_file(url, dest):
+    headers = {'User-Agent': 'Mozilla/5.0'}
+    req = urllib.request.Request(url, headers=headers)
+    try:
+        with urllib.request.urlopen(req) as response:
+            with open(dest, 'wb') as f:
+                f.write(response.read())
+        return True
+    except Exception as e:
+        print(f"Failed to download {url}: {e}")
+        return False
+
+
+def process_file(filepath):
+    with open(filepath, 'r', encoding='utf-8') as f:
+        content = f.read()
+
+    # Match frontmatter between ---
+    match = re.match(r'^---\s*\n(.*?)\n---\s*\n(.*)$', content, re.DOTALL)
+    if not match:
+        return
+
+    frontmatter_content = match.group(1)
+    body_content = match.group(2)
+
+    # Parse gallery_url from frontmatter
+    lines = frontmatter_content.split('\n')
+    gallery_url = None
+    for line in lines:
+        if line.startswith('gallery_url:'):
+            gallery_url = line.split(':', 1)[1].strip().strip('"\'')
+
+    if not gallery_url:
+        return
+
+    # Find all references to local files in conference/pages_2026/
+    # e.g., /conference/pages_2026/IMG_9738.jpeg
+    pattern = r'/?conference/pages_2026/([a-zA-Z0-9_\-\.]+)'
+    filenames = set(re.findall(pattern, body_content))
+
+    if not filenames:
+        return
+
+    print(
+        f"Processing {filepath}: found {len(filenames)} "
+        "referenced local images."
+    )
+    out_dir = os.path.join('.', 'conference', 'pages_2026')
+    os.makedirs(out_dir, exist_ok=True)
+
+    for filename in filenames:
+        dest_path = os.path.join(out_dir, filename)
+        if os.path.exists(dest_path):
+            continue
+
+        # Try downloading from root gallery_url
+        src_url = (
+            gallery_url + filename
+            if gallery_url.endswith('/')
+            else gallery_url + '/' + filename
+        )
+        print(f"Downloading {filename} from {src_url}...")
+        success = download_file(src_url, dest_path)
+
+        # If failed, try downloading from gallery_url + 'jpeg/'
+        if not success:
+            jpeg_url = (
+                gallery_url + 'jpeg/' + filename
+                if gallery_url.endswith('/')
+                else gallery_url + '/jpeg/' + filename
+            )
+            print(f"Retrying {filename} from {jpeg_url}...")
+            success = download_file(jpeg_url, dest_path)
+
+        if not success:
+            print(f"Warning: Could not download {filename} from {gallery_url}")
+
+
+def main():
+    # Walk all files in the repo looking for .md files
+    for root, dirs, files in os.walk('.'):
+        if '.git' in root or '_site' in root:
+            continue
+        for file in files:
+            if file.endswith('.md'):
+                process_file(os.path.join(root, file))
+
+
+if __name__ == "__main__":
+    main()

conference/2026.md

@@ -4,6 +4,7 @@ subtitle: University of Chicago in Paris<br/>John W. Boyer Center, Paris, France
 image: assets/img/fenics2026/universityofchicagoparis.jpg
 image-zoom: fill
 permalink: /fenics-2026/
+gallery_url: http://pub.fenicsproject.org/photos/fenics26-paris/
 ---
 # Description
 
@@ -32,28 +33,28 @@ Links to previous FEniCS conferences can be found [here](index.md).
     <div class="image-gallery-container">
       <div class="image-gallery-row">
         <!-- GALLERY_ROW1_START -->
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/IMG_9738.jpeg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/IMG_9738.jpeg" loading="lazy" alt="Photo 1" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9756.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9756.jpg" loading="lazy" alt="Photo 12" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9759.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9759.jpg" loading="lazy" alt="Photo 15" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9761.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9761.jpg" loading="lazy" alt="Photo 17" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9763.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9763.jpg" loading="lazy" alt="Photo 19" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9766.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9766.jpg" loading="lazy" alt="Photo 22" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9768.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9768.jpg" loading="lazy" alt="Photo 24" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9771.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9771.jpg" loading="lazy" alt="Photo 27" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9777.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9777.jpg" loading="lazy" alt="Photo 33" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/IMG_9738.jpeg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9738.jpeg" loading="lazy" alt="Photo 1" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9756.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9756.jpg" loading="lazy" alt="Photo 12" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9759.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9759.jpg" loading="lazy" alt="Photo 15" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9761.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9761.jpg" loading="lazy" alt="Photo 17" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9763.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9763.jpg" loading="lazy" alt="Photo 19" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9766.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9766.jpg" loading="lazy" alt="Photo 22" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9768.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9768.jpg" loading="lazy" alt="Photo 24" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9771.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9771.jpg" loading="lazy" alt="Photo 27" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9777.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9777.jpg" loading="lazy" alt="Photo 33" /></a>
         <!-- GALLERY_ROW1_END -->
       </div>
       <div class="image-gallery-row">
         <!-- GALLERY_ROW2_START -->
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9781.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9781.jpg" loading="lazy" alt="Photo 37" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9782.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9782.jpg" loading="lazy" alt="Photo 38" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9783.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9783.jpg" loading="lazy" alt="Photo 39" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9784.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9784.jpg" loading="lazy" alt="Photo 40" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9785.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9785.jpg" loading="lazy" alt="Photo 41" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9787.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9787.jpg" loading="lazy" alt="Photo 43" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9789.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9789.jpg" loading="lazy" alt="Photo 45" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9790.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9790.jpg" loading="lazy" alt="Photo 46" /></a>
-        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9794.jpg" target="_blank" rel="noopener noreferrer"><img src="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9794.jpg" loading="lazy" alt="Photo 47" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9781.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9781.jpg" loading="lazy" alt="Photo 37" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9782.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9782.jpg" loading="lazy" alt="Photo 38" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9783.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9783.jpg" loading="lazy" alt="Photo 39" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9784.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9784.jpg" loading="lazy" alt="Photo 40" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9785.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9785.jpg" loading="lazy" alt="Photo 41" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9787.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9787.jpg" loading="lazy" alt="Photo 43" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9789.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9789.jpg" loading="lazy" alt="Photo 45" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9790.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9790.jpg" loading="lazy" alt="Photo 46" /></a>
+        <a href="http://pub.fenicsproject.org/photos/fenics26-paris/jpeg/IMG_9794.jpg" target="_blank" rel="noopener noreferrer"><img src="/conference/pages_2026/IMG_9794.jpg" loading="lazy" alt="Photo 47" /></a>
         <!-- GALLERY_ROW2_END -->
       </div>
     </div>