feat: rétroliens dans la sidebar des articles

data/0bba1ad7-e4cb-49a6-9467-fcfac2e09a93/meta.json

@@ -6,11 +6,22 @@
     "published": true,
     "published_at": "2026-06-08 07:00",
     "created_at": "2026-05-12 23:01:34",
-    "updated_at": "2026-05-12 23:01:34",
+    "updated_at": "2026-05-12 23:18:32",
     "revisions": [],
     "cover": "",
     "files_meta": [],
-    "external_links": [],
+    "external_links": [
+        {
+            "url": "https://varlog.a5l.fr/post/post-install",
+            "name": "Premiers pas DevOps : préparer un système Debian fraîchement installé",
+            "added_at": "2026-05-12 23:18:02",
+            "author": "Cédrix",
+            "meta": {
+                "mime": "text/html",
+                "description": "Lorsqu'on vient de provisionner une machine Debian — que ce soit un conteneur LXC, une VM ou un serveur dédié — quelques étapes initiales sont incontourna…"
+            }
+        }
+    ],
     "seo_title": "",
     "seo_description": "",
     "og_image": "",

public/index.php

@@ -633,6 +633,8 @@ switch ($action) {
 
         unset($_allPublished);
 
+        $backlinks = $articles->getBacklinks($article['slug'] ?? '', $article['uuid']);
+
         include BASE_PATH . '/templates/post_view.php';
         break;
 

src/ArticleManager.php

@@ -884,6 +884,28 @@ class ArticleManager
         );
     }
 
+    /**
+     * Retourne les articles publiés qui contiennent un lien vers /post/<slug>.
+     */
+    public function getBacklinks(string $slug, string $excludeUuid = ''): array
+    {
+        $pattern = '/post/' . $slug;
+        $result  = [];
+        foreach ($this->getAll(publishedOnly: true) as $article) {
+            if ($excludeUuid !== '' && $article['uuid'] === $excludeUuid) {
+                continue;
+            }
+            foreach ($article['external_links'] ?? [] as $link) {
+                $path = parse_url($link['url'] ?? '', PHP_URL_PATH) ?? '';
+                if ($path === $pattern || rtrim($path, '/') === $pattern) {
+                    $result[] = $article;
+                    break;
+                }
+            }
+        }
+        return $result;
+    }
+
     private function removeDir(string $dir): void
     {
         foreach (scandir($dir) as $entry) {

templates/post_view.php

@@ -232,6 +232,27 @@ $hasSources     = (!empty($externalLinks) || !empty($files))
         <?php endforeach; ?>
         <?php endif; ?>
 
+        <?php if (!empty($backlinks ?? [])): ?>
+        <h6 class="related-sidebar-title">Rétroliens</h6>
+        <?php foreach ($backlinks as $_bl):
+            $_blCover    = $_bl['cover'] ?? '';
+            $_blCat      = trim($_bl['category'] ?? '');
+            $_blGradient = coverGradient($_blCat !== '' ? $_blCat : $_bl['uuid'], $allCats ?? []);
+            $_blDate     = date('d/m/Y', strtotime((string)($_bl['published_at'] ?? $_bl['created_at'] ?? '')));
+            ?>
+        <a href="/post/<?= rawurlencode($_bl['slug'] ?? '') ?>" class="related-card">
+            <div class="related-card-thumb" style="<?= $_blCover !== ''
+                    ? 'background-image:url(/file?uuid=' . rawurlencode($_bl['uuid']) . '&name=' . rawurlencode($_blCover) . ');background-size:cover;background-position:center'
+                    : 'background:' . htmlspecialchars($_blGradient) ?>">
+            </div>
+            <div class="related-card-body">
+                <div class="related-card-title"><?= htmlspecialchars($_bl['title']) ?></div>
+                <div class="related-card-date"><?= $_blDate ?></div>
+            </div>
+        </a>
+        <?php endforeach; ?>
+        <?php endif; ?>
+
     </aside>
 </div>