Merge pull request #1258 from vbfox/tags_as_categories

feat: Expose tags as categories in rss

Author: epage

src/document.rs

@@ -10,6 +10,7 @@ use liquid::ValueView;
 use liquid::model::Value;
 use log::trace;
 use regex::Regex;
+use rss::Category;
 
 use crate::cobalt_model;
 use crate::cobalt_model::Minify;
@@ -78,12 +79,24 @@ impl Document {
             .permalink(true)
             .build();
 
+        let mut categories = self
+            .front
+            .tags
+            .iter()
+            .map(|c| Category::from(c.as_str()))
+            .collect::<Vec<_>>();
+
+        if !self.front.categories.is_empty() {
+            categories.push(self.front.categories.join("/").into());
+        }
+
         let item = rss::ItemBuilder::default()
             .title(Some(self.front.title.as_str().to_owned()))
             .link(Some(link))
             .guid(Some(guid))
             .pub_date(self.front.published_date.map(|date| date.to_rfc2822()))
             .description(self.description_to_str())
+            .categories(categories)
             .build();
         Ok(item)
     }

tests/cmd/rss.in/posts/my-first-blogpost.md

@@ -4,6 +4,7 @@ layout: posts.liquid
 title:   My first Blogpost
 description: It's my first blog post
 published_date:    2016-01-01 21:00:00 +0100
+tags: [blog, first]
 ---
 # {{ page.title }}
 

tests/cmd/rss.in/posts/my-second-blogpost.md

@@ -3,6 +3,7 @@ layout: posts.liquid
 
 title:   My second Blogpost
 published_date:    2015-01-02 10:00:00 +0100
+categories: [lorem, ipsum]
 ---
 # {{ page.title }}
 

tests/cmd/rss.in/posts/my-third-blogpost.md

@@ -3,6 +3,8 @@ layout: posts.liquid
 
 title:   My third Blogpost
 published_date:    2015-05-27 23:00:00 +0100
+tags: [test, blogpost]
+categories: [blog, test]
 ---
 # {{ page.title }}
 

tests/cmd/rss.out/_dest/.keep

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?><rss version="2.0"><channel><title>My blog!</title><link>http://example.com</link><description>Blog description</description><item><title>My fifth Blogpost!</title><link>http://example.com/posts/my-fifth-blogpost.html</link><description><![CDATA[<h1>My fifth Blogpost!</h1>
+]]></description><guid>http://example.com/posts/my-fifth-blogpost.html</guid><pubDate>Tue, 16 Feb 2016 10:00:00 +0100</pubDate></item><item><title>My first Blogpost</title><link>http://example.com/posts/my-first-blogpost.html</link><description><![CDATA[It's my first blog post]]></description><category>blog</category><category>first</category><guid>http://example.com/posts/my-first-blogpost.html</guid><pubDate>Fri, 01 Jan 2016 21:00:00 +0100</pubDate></item><item><title>My fourth Blogpost</title><link>http://example.com/posts/my-fourth-blogpost.html</link><description><![CDATA[<h1>My fourth Blogpost</h1>
+]]></description><guid>http://example.com/posts/my-fourth-blogpost.html</guid><pubDate>Fri, 29 May 2015 23:00:00 +0100</pubDate></item><item><title>My third Blogpost</title><link>http://example.com/posts/my-third-blogpost.html</link><description><![CDATA[<h1>My third Blogpost</h1>
+]]></description><category>test</category><category>blogpost</category><category>blog/test</category><guid>http://example.com/posts/my-third-blogpost.html</guid><pubDate>Wed, 27 May 2015 23:00:00 +0100</pubDate></item><item><title>My second Blogpost</title><link>http://example.com/posts/my-second-blogpost.html</link><description><![CDATA[<h1>My second Blogpost</h1>
+]]></description><category>lorem/ipsum</category><guid>http://example.com/posts/my-second-blogpost.html</guid><pubDate>Fri, 02 Jan 2015 10:00:00 +0100</pubDate></item></channel></rss>