Support specify canonical url for articles (#149)

zineland · Jan 27, 2023 · fba44ba · fba44ba
1 parent 16012c3
commit fba44ba
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diff --git a/src/entity/article.rs b/src/entity/article.rs
@@ -57,6 +57,9 @@ pub struct Article {
     /// generate HTML file in this mode.
     #[serde(default)]
     pub publish: bool,
+    /// The canonical link of this article.
+    /// See issue: https://github.com/zineland/zine/issues/141
+    pub canonical: Option<String>,
     #[serde(default, skip_serializing)]
     pub i18n: HashMap<String, Article>,
 }
@@ -191,6 +194,7 @@ impl Article {
         );
         context.insert("page_type", "article");
         context.insert("article", &self);
+        context.insert("canonical_url", &self.canonical);
 
         let zine_data = data::read();
         let markdown_config = zine_data.get_markdown_config();

diff --git a/templates/_meta.jinja b/templates/_meta.jinja
@@ -31,4 +31,11 @@
 <meta name="twitter:card" content="summary_large_image">
 <meta property="og:image" content="{{ image_url ~ image }}">
 <meta name="twitter:image" content="{{ image_url ~ image }}">
+{% endif -%}
+{% if page_type and page_type == "article" -%}
+{% if canonical_url -%}
+<link rel="canonical" href="{{ canonical_url }}">
+{% else -%}
+<link rel="canonical" href="{{ site.url ~ '/' ~ meta.url }}">
+{% endif -%}
 {% endif -%}