Make number RSS item configurable

Fix #71

CHANGELOG.md

@@ -5,6 +5,7 @@
 - Fix missing serialized data for sections
 - Change the single item template context for categories/tags
 - Add a `get_url` global Tera function
+- Add a config option to control how many articles to show in RSS feed
 
 ## 0.0.5 (2017-05-15)
 

src/config.rs

@@ -24,8 +24,10 @@ pub struct Config {
     pub description: Option<String>,
     /// The language used in the site. Defaults to "en"
     pub language_code: Option<String>,
-    /// Whether to generate RSS, defaults to false
+    /// Whether to generate RSS. Defaults to false
     pub generate_rss: Option<bool>,
+    /// The number of articles to include in the RSS feed. Defaults to unlimited
+    pub rss_limit: Option<usize>,
     /// Whether to generate tags and individual tag pages if some pages have them. Defaults to true
     pub generate_tags_pages: Option<bool>,
     /// Whether to generate categories and individual tag categories if some pages have them. Defaults to true
@@ -59,6 +61,7 @@ impl Config {
         set_default!(config.language_code, "en".to_string());
         set_default!(config.highlight_code, false);
         set_default!(config.generate_rss, false);
+        set_default!(config.rss_limit, <usize>::max_value());
         set_default!(config.generate_tags_pages, false);
         set_default!(config.generate_categories_pages, false);
         set_default!(config.insert_anchor_links, false);
@@ -109,6 +112,7 @@ impl Default for Config {
             description: None,
             language_code: Some("en".to_string()),
             generate_rss: Some(false),
+            rss_limit: Some(10000),
             generate_tags_pages: Some(true),
             generate_categories_pages: Some(true),
             insert_anchor_links: Some(false),

src/site.rs

@@ -427,7 +427,7 @@ impl Site {
         let mut context = Context::new();
         let pages = self.pages.values()
             .filter(|p| p.meta.date.is_some())
-            .take(15) // limit to the last 15 elements
+            .take(self.config.rss_limit.unwrap()) // limit to the last n elements
             .cloned()
             .collect::<Vec<Page>>();