Add an Atom feed to follow new conference announcements (#704)

* Add an Atom feed to follow new conference announcements

* Use correct announced_at date based on commit date

* Renamed announced_at to announced_on

* Add feed link to footer

* Use absolute URL for atom feed

* Narrow down `announced_on` dates

---------

Co-authored-by: Marco Roth <[email protected]>

Author: lylo

Diff for: Gemfile

@@ -8,3 +8,7 @@ gem 'danger-commit_lint'
 gem 'html-proofer'
 gem 'jekyll'
 gem 'rake'
+
+group :jekyll_plugins do
+  gem 'jekyll-feed'
+end

Diff for: Gemfile.lock

@@ -90,6 +90,8 @@ GEM
       safe_yaml (~> 1.0)
       terminal-table (>= 1.8, < 4.0)
       webrick (~> 1.7)
+    jekyll-feed (0.17.0)
+      jekyll (>= 3.7, < 5.0)
     jekyll-sass-converter (3.0.0)
       sass-embedded (~> 1.54)
     jekyll-watch (2.2.1)
@@ -161,6 +163,7 @@ DEPENDENCIES
   danger-commit_lint
   html-proofer
   jekyll
+  jekyll-feed
   rake
 
 RUBY VERSION

Diff for: Rakefile

@@ -27,7 +27,8 @@ task :verify_data do
     "reg_date",
     "cfp_phrase",
     "cfp_date",
-    "video_link"
+    "video_link",
+    "announced_on"
   ]
   data = YAML.load File.read "_data/conferences.yml"
   validator = DataFileValidator.validate(data, allowed_keys)

Diff for: _config.yml

@@ -1,3 +1,5 @@
+name: Ruby Conferences
+url: https://rubyconferences.org
 safe: true
 lsi: false
 source: .
@@ -12,3 +14,6 @@ exclude:
   - data_file_validator.rb
   - notes.txt
   - vendor
+
+plugins:
+  - jekyll-feed

Diff for: _data/conferences.yml

@@ -2650,25 +2650,29 @@
   cfp_open_date: 2024-03-15
   cfp_close_date: 2024-04-30
   cfp_link: https://cfp.madisonruby.com/events/2024/
+  announced_on: 2023-11-14
 
 - name: Osaka RubyKaigi 04
   location: Osaka, Japan
   start_date: 2024-08-24
   end_date: 2024-08-24
   url: https://regional.rubykaigi.org/osaka04/
+  announced_on: 2024-03-28
 
 - name: Rails Camp USA 2024
   location: Cascade, Idaho
   start_date: 2024-08-27
   end_date: 2024-08-30
   url: https://west.railscamp.us/2024
   twitter: railscamp_usa
+  announced_on: 2024-02-29
 
 - name: Fukuoka RubyistKaigi 04
   location: Fukuoka, Japan
   start_date: 2024-09-07
   end_date: 2024-09-07
   url: https://regional.rubykaigi.org/fukuoka04/
+  announced_on: 2023-12-14
 
 - name: EuRuKo 2024
   location: Sarajevo, Bosnia & Herzegovina
@@ -2680,6 +2684,7 @@
   cfp_open_date: 2024-01-12
   cfp_close_date: 2024-04-15
   cfp_link: https://www.papercall.io/euruko2024
+  announced_on: 2023-11-27
 
 - name: Friendly.rb 2024
   location: Bucharest, Romania
@@ -2691,6 +2696,7 @@
   cfp_open_date: 2024-03-29
   cfp_close_date: 2024-07-01
   cfp_link: https://friendlyrb.com/cfp
+  announced_on: 2023-11-01
 
 - name: Rails World 2024
   location: Toronto, Canada
@@ -2701,12 +2707,14 @@
   cfp_open_date: 2024-02-05
   cfp_close_date: 2024-03-21
   cfp_link: https://sessionize.com/rails-world/
+  announced_on: 2023-11-30
 
 - name: Matsue RubyistKaigi 11
   location: Matsue, Japan
   start_date: 2024-10-05
   end_date: 2024-10-05
   url: https://matsue.rubyist.net/matrk11/
+  announced_on: 2024-03-21
 
 - name: Rubyfuza 2024
   location: Cape Town, South Africa
@@ -2718,12 +2726,14 @@
   cfp_close_date: 2024-08-10
   cfp_link: https://www.papercall.io/rubyfuza-2024
   status: Canceled
+  announced_on: 2023-10-18
 
 - name: Ruby Retreat 2024
   location: Warrnambool, VIC, Australia
   url: https://retreat.ruby.org.au/
   start_date: 2024-10-18
   end_date: 2024-10-21
+  announced_on: 2024-04-12
 
 - name: Rocky Mountain Ruby 2024
   location: Boulder, Colorado
@@ -2735,13 +2745,15 @@
   cfp_open_date: 2024-05-15
   cfp_close_date: 2024-06-30
   cfp_link: https://sessionize.com/rocky-mountain-ruby
+  announced_on: 2024-04-17
 
 - name: Haggis Ruby 2024
   location: Edinburgh, Scotland
   start_date: 2024-10-24
   end_date: 2024-10-24
   url: https://haggisruby.co.uk
   mastodon: https://ruby.social/@haggisruby
+  announced_on: 2024-07-04
 
 - name: Kaigi on Rails 2024
   location: Tokyo, Japan
@@ -2753,6 +2765,7 @@
   cfp_open_date: 2024-07-01
   cfp_close_date: 2024-07-31
   cfp_link: https://cfp.kaigionrails.org/events/2024
+  announced_on: 2024-02-24
 
 - name: RubyConf 2024
   location: Chicago, IL
@@ -2764,6 +2777,7 @@
   cfp_open_date: 2024-06-06
   cfp_close_date: 2024-07-22
   cfp_link: https://sessionize.com/rubyconf-2024/
+  announced_on: 2024-01-21
 
 - name: RubyConf India 2024
   location: Jaipur, India
@@ -2774,13 +2788,15 @@
   cfp_open_date: 2024-07-23
   cfp_close_date: 2024-09-25
   cfp_link: https://www.papercall.io/rubyconf-india-2024
+  announced_on: 2024-07-23
 
 - name: RubyWorld Conference 2024
   location: Matsue, Japan
   start_date: 2024-12-05
   end_date: 2024-12-06
   url: https://2024.rubyworld-conf.org/en/
   twitter: rubyworldconf
+  announced_on: 2024-05-29
 
 - name: RubyKaigi 2025
   location: Matsuyama, Ehime, Japan
@@ -2789,13 +2805,15 @@
   url: https://rubykaigi.org
   twitter: rubykaigi
   mastodon: https://ruby.social/@rubykaigi
+  announced_on: 2024-05-18
 
 - name: Balkan Ruby 2025
   location: Sofia, Bulgaria
   start_date: 2025-04-25
   end_date: 2025-04-26
   url: https://balkanruby.com
   twitter: balkanruby
+  announced_on: 2024-04-28
 
 - name: Helvetic Ruby 2025
   location: Geneva, Switzerland
@@ -2804,6 +2822,7 @@
   url: https://helvetic-ruby.ch
   twitter: helvetic_ruby
   mastodon: https://ruby.social/@helvetic_ruby
+  announced_on: 2024-05-17
 
 - name: Brighton Ruby 2025
   location: Brighton, UK
@@ -2812,6 +2831,7 @@
   url: https://brightonruby.com
   twitter: brightonruby
   mastodon: https://ruby.social/@brightonruby
+  announced_on: 2024-06-19
 
 - name: Baltic Ruby 2025
   location: Riga, Latvia
@@ -2822,6 +2842,7 @@
   url: https://balticruby.org
   twitter: balticruby
   mastodon: https://ruby.social/@balticruby
+  announced_on: 2024-06-15
 
 - name: RailsConf 2025
   location: United States
@@ -2832,3 +2853,4 @@
   url: https://www.railsconf.com
   twitter: railsconf
   mastodon: https://ruby.social/@railsconf
+  announced_on: 2024-05-07

Diff for: _layouts/default.html

@@ -10,6 +10,7 @@
     <link href="//fonts.googleapis.com/css?family=Exo+2:300,400" rel="stylesheet" type="text/css">
     <link href="/css/style.css" rel="stylesheet" type="text/css">
     <link href="/images/favicon.png" rel="icon" type="image/png">
+    {% feed_meta %}
     <script src="/js/jquery.js" type="text/javascript"></script>
     <script src="/js/moment.min.js" type="text/javascript"></script>
     <script src="/js/behavior.js" type="text/javascript"></script>
@@ -47,6 +48,7 @@ <h1>
           <li><a href="https://github.com/ruby-conferences/ruby-conferences.github.io">source</a></li>
           <li><a href="https://rubyconferences.org/calendar.ics">ics events calendar feed</a></li>
           <li><a href="https://rubyconferences.org/cfp.ics">ics CFP calendar feed</a></li>
+          <li><a href="https://rubyconferences.org/feed.xml">RSS feed</a></li>
         </ul>
       </footer>
       <script type="text/javascript">

Diff for: feed.xml

@@ -0,0 +1,28 @@
+---
+---
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom">
+  <title type="text" xml:lang="en">{{ site.name }}</title>
+  <link type="application/atom+xml" href="atom_feed_url" rel="self"/>
+  <link type="text/html" href="home_url_canonical" rel="alternate"/>
+  <updated>{{ site.time | date_to_xmlschema }}</updated>
+  <id>{{ site.url }}/feed.xml</id>
+
+  {% assign latest_events = site.data.conferences | reverse | slice: 0, 50 %}
+  {% for event in latest_events %}
+    {% if event.announced_on %}
+      <entry>
+        <published>{{ event.announced_on | date: "%Y-%m-%dT%H:%M:%S%z" }}</published>
+
+        <title>{{ event.name }}</title>
+        <id>{{ event.url }}</id>
+        <link href="{{ event.url }}" />
+        <content type="html">
+          <![CDATA[
+          {% include event.html %}
+          ]]>
+        </content>
+      </entry>
+    {% endif %}
+  {% endfor %}
+</feed>