Add RSS Feed (#1500)

lib/gollum/app.rb

@@ -19,7 +19,7 @@ require 'gollum/views/editable'
 require 'gollum/views/has_page'
 require 'gollum/views/has_user_icons'
 require 'gollum/views/pagination'
-
+require 'gollum/views/rss.rb'
 
 require File.expand_path '../helpers', __FILE__
 
@@ -44,6 +44,7 @@ module Precious
     register Mustache::Sinatra
     register Sinatra::Namespace
     include Precious::Helpers
+    
     dir = File.dirname(File.expand_path(__FILE__))
 
     set :sprockets, ::Precious::Assets.sprockets(dir)
@@ -77,6 +78,8 @@ module Precious
       @critic_markup = settings.wiki_options[:critic_markup]
       @redirects_enabled = settings.wiki_options.fetch(:redirects_enabled, true)
       @per_page_uploads = settings.wiki_options[:per_page_uploads]
+      
+      @wiki_title = settings.wiki_options.fetch(:title, 'Gollum Wiki')
 
       forbid unless @allow_editing || request.request_method == 'GET'
       Precious::App.set(:mustache, {:templates => settings.wiki_options[:template_dir]}) if settings.wiki_options[:template_dir]
@@ -111,7 +114,16 @@ module Precious
     end
 
     namespace '/gollum' do
-      
+      get '/feed/' do
+        url = "#{env['rack.url_scheme']}://#{env['HTTP_HOST']}"
+        changes = wiki_new.latest_changes(::Gollum::Page.log_pagination_options(
+          per_page: settings.wiki_options.fetch(:pagination_count, 10),
+          page_num: 0)
+        )
+        content_type :rss
+        RSSView.new(@base_url, @wiki_title, url, changes).render
+      end
+
       get '/assets/mathjax/*' do
         env['PATH_INFO'].sub!("/gollum/assets/mathjax", '')
         Rack::Static.new(not_found_proc, {:root => @mathjax_path, :urls => ['']}).call(env)

lib/gollum/views/rss.rb

@@ -0,0 +1,43 @@
+require 'rss'
+
+class RSSView
+  
+  include Precious::Views::AppHelpers
+  include Precious::Views::RouteHelpers
+  
+  attr_reader :base_url
+  
+  def initialize(base_url, wiki_title, url, changes)
+    @base_url = base_url
+    @wiki_title = wiki_title
+    @url = url
+    @changes = changes
+  end
+  
+  def render
+    latest_changes = "#{@url}#{latest_changes_path}"
+    RSS::Maker.make('2.0') do |maker|
+      maker.channel.author = 'Gollum Wiki'
+      maker.channel.updated = @changes.first.authored_date
+      maker.channel.title = "#{@wiki_title} Latest Changes"
+      maker.channel.description = "Latest Changes in #{@wiki_title}"
+      maker.channel.link = latest_changes
+      @changes.each do |change|
+        maker.items.new_item do |item|
+          item.link = latest_changes
+          item.title = change.message
+          item.updated = change.authored_date
+          id = change.id
+          files = change.stats.files.map do |files|
+            [files[:old_file], files[:new_file]].compact.map do |file|
+              f = extract_page_dir(file)
+              "<li><a href=\"#{@url}#{page_route(f)}/#{id}\">#{f}</a></li>"
+            end
+          end
+          item.description = "Commited by: <a href=\"mailto:#{change.author.email}\">#{change.author.name}</a><br/>Commit ID: #{id[0..6]}<br/><br/>Affected files:<ul>#{files.join}</ul>"
+        end
+      end
+    end.to_s
+  end
+
+end