Do not have trailing slash for rss.xml

Closes #486

CHANGELOG.md

@@ -32,6 +32,7 @@ Tera function
 sections up to the index to be used with the `get_section` Tera function
 - Add a `load_data` Tera function to load local CSV/TOML/JSON files
 - Add `relative_path` to pages and sections in templates
+- Do not have a trailing slash for the RSS permalinks
 
 ## 0.4.2 (2018-09-03)
 

components/config/src/config.rs

@@ -189,7 +189,7 @@ impl Config {
 
     /// Makes a url, taking into account that the base url might have a trailing slash
     pub fn make_permalink(&self, path: &str) -> String {
-        let trailing_bit = if path.ends_with('/') || path.is_empty() {
+        let trailing_bit = if path.ends_with('/') || path.ends_with("rss.xml") || path.is_empty() {
             ""
         } else {
             "/"
@@ -366,6 +366,14 @@ hello = "world"
         );
     }
 
+    // https://github.com/Keats/gutenberg/issues/486
+    #[test]
+    fn doesnt_add_trailing_slash_to_rss() {
+        let mut config = Config::default();
+        config.base_url = "http://vincent.is/".to_string();
+        assert_eq!(config.make_permalink("rss.xml"), "http://vincent.is/rss.xml");
+    }
+
     #[test]
     fn can_merge_with_theme_data_and_preserve_config_value() {
         let config_str = r#"