[devdocsgjs/main: 1714/1867] Add get_latest_verison for R

[Andy Holmes <andyholmes src gnome org>]

commit d9f92b0f92e828b2a350b475e1e53765ed4fd312
Author: Cimbali <me cimba li>
Date:   Wed Jun 9 16:23:50 2021 +0200

    Add get_latest_verison for R
    
    > bundler exec thor updates:check r
    +---------------+-----------------+----------------+
    |          Up-to-date documentations (1)           |
    +---------------+-----------------+----------------+
    | Documentation | Scraper version | Latest version |
    +---------------+-----------------+----------------+
    | R             | 4.1.0           | 4.1.0          |
    +---------------+-----------------+----------------+

 lib/docs/scrapers/r.rb | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/lib/docs/scrapers/r.rb b/lib/docs/scrapers/r.rb
index 308d1a6b..28a97c2c 100644
--- a/lib/docs/scrapers/r.rb
+++ b/lib/docs/scrapers/r.rb
@@ -49,5 +49,10 @@ module Docs
       doc/manual/R-lang.html
     )
 
+    def get_latest_version(opts)
+      body = fetch('https://cran.r-project.org/src/base/NEWS', opts)
+      body.match(/CHANGES IN R ([\d.]+):/)[1]
+    end
+
   end
 end