Merge branch 'new_site' into develop

.gitignore

-_site
-.sass-cache
-.DS_Store
-.ruby-version
-node_modules
-.jekyll-metadata
\ No newline at end of file
+/_site
+/.sass-cache
+/.ruby-version
+/.jekyll-metadata
+/.jekyll-cache
+/.bundle
+/vendor
+/debug
\ No newline at end of file

.gitlab-ci.yml

-image: ruby:2-alpine3.11
-
 stages:
+  - build
   - deploy
-
 variables:
   JEKYLL_ENV: production
   LC_ALL: C.UTF-8
   GIT_SUBMODULE_STRATEGY: recursive
 
-# Build is in `before_script` because it's the same for both deployments
-before_script:
-  - apk add build-base libressl git bash python2
-  - id
-  - ls -lah /usr/gem && true
-  - mkdir -p /usr/gem/cache
-  - ls -lah /usr/gem && true
-  - ls -lah /usr/gem/cache
-  - apk add npm
-  - npm install
-  - bundle install
-  - ./scripts/ci_fix_baseurl.sh
-  - jekyll build -d public 2>&1 | grep -v 'Using the last argument as keyword parameters is deprecated'
-  - ./scripts/purgecss.sh public
-  - ./scripts/minifycssjs.sh public
-  - ./scripts/add_mailinglist_symlink.sh public
-
-deploy-prod:
-  stage: deploy
+build:
+  image: jekyll/builder:4.0
+  stage: build
   script:
-  - apk add rsync openssh
-  - mkdir -p "$HOME/.ssh"
-  - echo "$SSH_KNOWN_HOSTS" > "$HOME/.ssh/known_hosts"
-  - chmod 700 "$HOME/.ssh/known_hosts"
-  - chmod 700 "$SSH_DEPLOY_KEY"
-  - rsync -e "ssh -i $SSH_DEPLOY_KEY" --delete-after -rlptP public/ "$SSH_DEPLOY_USER@$SSH_DEPLOY_HOST:/www.poul.org/"
-  cache:
-    key: build-deps
+    - mkdir public
+    - chown -R jekyll:jekyll
+    - jekyll build -d public
+  artifacts:
     paths:
-      - "node_modules/"
+      - public
+    expire_in: 1 day
   only:
-  - master
+    - develop
+    - master
 
-pages:
+deploy_pages:
   stage: deploy
   script:
     - echo "Already built."
   artifacts:
     paths:
-    - public
-  cache:
-    key: build-deps
-    paths:
-      - "node_modules/"
+      - public
+  only:
+    - develop
+
+deploy_prod:
+  stage: deploy
+  image: alpine:3.13
+  script:
+    - apk add rsync openssh
+    - mkdir -p "$HOME/.ssh"
+    - echo "$SSH_KNOWN_HOSTS" > "$HOME/.ssh/known_hosts"
+    - chmod 700 "$HOME/.ssh/known_hosts"
+    - chmod 700 "$SSH_DEPLOY_KEY"
+    - rsync -e "ssh -i $SSH_DEPLOY_KEY" --delete-after -rlptP public/ "$SSH_DEPLOY_USER@$SSH_DEPLOY_HOST:/www.poul.org/"
   only:
-  - develop
+    - master

.gitmodules

-[submodule "assets/scss/material-kit"]
-	path = assets/vendor/material-kit
-	url = https://github.com/creativetimofficial/material-kit.git
+[submodule "_data/courses"]
+	path = _data/courses
+	url = ../courses-data
+[submodule "_posts"]
+	path = _posts
+	url = ../posts

1970-01-01-sample_post.md

----
-layout: post
-title: Sample post
-categories:
-- Corsi Linux
-- Events
-tags:
-- Linux
----
-
-Questo è un post d'esempio.
-
-- Elemento
-- Di
-- Una lista
-
-1. Numerata
-2. Se
-3. Proprio
-4. Vogliamo
-
-## Code
-
-```python
-import sys
-
-def hello():
-    sys.stdout.write("Complicated hello world\n")
-
-if __name__ == "__main__":
-    hello()
-```
-
-## Images
-
-- Upload to `assets/img/post-slug`, i.e. `assets/img/1970-01-01-sample_post`
-
-```
-![{% raw %}{{ site.baseurl }}{% link 'assets/img/1970-01-01-sample_post/image.jpg' %}]{% endraw %}
-```
-
-## Link to page on this site
-
-```
-[label]({% raw %}{{ site.baseurl }}{% link 'path-to-file.md' %}{% endraw %})
-```
-
-## Link to post
-
-If the post is under a subdirectory, it needs to be included.
-
-```
-[label]({% raw %}{{ site.baseurl }}{% post_url wp-export/2019-03-10-corsi-linux-2019 %}{% endraw %})
-```
-Result: [label]({{ site.baseurl }}{% post_url wp-export/2019-03-10-corsi-linux-2019 %})
-
-
-## WordPress Alert Boxes
-
-A number of old WordPress alert boxes have been ported. They have a slightly more complicated syntax.
-
-To put links in them, please use plain HTML (as opposed to Markdown — you can use Jekyll tags).
-
-Note that only the first two have been styled out of laziness. More can be added if needed.
-
-#### Important
-{% include alerts/important.html content="Important" %}
-
-```
-{% raw %}{% include alerts/important.html content="Important" %}{% endraw %}
-```
-
-#### Notice
-{% include alerts/notice.html content="Notice" %}
-
-```
-{% raw %}{% include alerts/notice.html content="Notice" %}{% endraw %}
-```
-
-#### Red
-{% include alerts/red.html content="Red" %}
-
-```
-{% raw %}{% include alerts/red.html content="Red" %}{% endraw %}
-```
-
-#### Warning
-{% include alerts/warning.html content="Warning" %}
-
-```
-{% raw %}{% include alerts/warning.html content="Warning" %}{% endraw %}
-```

Gemfile

@@ -4,4 +4,3 @@ gem "jekyll"
 gem "jekyll-paginate"
 gem "support-for"
 gem "jekyll-sitemap"
-gem 'jekyll-purgecss'

Gemfile.lock

 GEM
   remote: http://rubygems.org/
   specs:
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.4)
-    em-websocket (0.5.1)
+    concurrent-ruby (1.1.8)
+    em-websocket (0.5.2)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
-    ffi (1.10.0)
+    ffi (1.15.0)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
-    i18n (0.9.5)
+    i18n (1.8.10)
       concurrent-ruby (~> 1.0)
-    jekyll (3.8.5)
+    jekyll (4.2.0)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
-      i18n (~> 0.7)
-      jekyll-sass-converter (~> 1.0)
+      i18n (~> 1.0)
+      jekyll-sass-converter (~> 2.0)
       jekyll-watch (~> 2.0)
-      kramdown (~> 1.14)
+      kramdown (~> 2.3)
+      kramdown-parser-gfm (~> 1.0)
       liquid (~> 4.0)
-      mercenary (~> 0.3.3)
+      mercenary (~> 0.4.0)
       pathutil (~> 0.9)
-      rouge (>= 1.7, < 4)
+      rouge (~> 3.0)
       safe_yaml (~> 1.0)
+      terminal-table (~> 2.0)
     jekyll-paginate (1.1.0)
-    jekyll-purgecss (0.2.0)
-    jekyll-sass-converter (1.5.2)
-      sass (~> 3.4)
-    jekyll-sitemap (1.3.1)
+    jekyll-sass-converter (2.1.0)
+      sassc (> 2.0.1, < 3.0)
+    jekyll-sitemap (1.4.0)
       jekyll (>= 3.7, < 5.0)
-    jekyll-watch (2.1.2)
+    jekyll-watch (2.2.1)
       listen (~> 3.0)
-    kramdown (1.17.0)
-    liquid (4.0.1)
-    listen (3.1.5)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-      ruby_dep (~> 1.2)
-    mercenary (0.3.6)
+    kramdown (2.3.1)
+      rexml
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
+    liquid (4.0.3)
+    listen (3.5.1)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
+    mercenary (0.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.3)
-    rb-fsevent (0.10.3)
-    rb-inotify (0.10.0)
+    public_suffix (4.0.6)
+    rb-fsevent (0.10.4)
+    rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rouge (3.3.0)
-    ruby_dep (1.5.0)
-    safe_yaml (1.0.4)
-    sass (3.7.3)
+    rexml (3.2.5)
+    rouge (3.26.0)
+    safe_yaml (1.0.5)
+    sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
+    sassc (2.4.0)
+      ffi (~> 1.9)
     support-for (1.0.7)
       sass (~> 3.3)
+    terminal-table (2.0.0)
+      unicode-display_width (~> 1.1, >= 1.1.1)
+    unicode-display_width (1.7.0)
 
 PLATFORMS
   ruby
@@ -65,9 +73,8 @@ PLATFORMS
 DEPENDENCIES
   jekyll
   jekyll-paginate
-  jekyll-purgecss
   jekyll-sitemap
   support-for
 
 BUNDLED WITH
-   2.0.2
+   2.2.16

README.md

+[![pipeline status](https://gitlab.poul.org/sito/poul-jekyll/badges/master/pipeline.svg)](https://gitlab.poul.org/sito/poul-jekyll/commits/master)
+
 Theme based on [Long Haul](https://github.com/brianmaierjr/long-haul)
 
 ## Writing new posts
@@ -85,23 +87,31 @@ These boxes are available:
 
 ### Sample post
 
-A sample post is available at `/1970-01-01-sample_post`. View it in the website for a quick demo.
+A sample post is available at `/examples/1970-01-01-sample_post`. View it in the website for a quick demo.
 
 ## Local preview (i.e. to see posts before commiting)
 
+Please read the notes below first!
+
 You need `docker`:
 
 ```bash
 docker run --rm --volume="$PWD:/srv/jekyll" -p 4000:4000 -it jekyll/jekyll jekyll serve --incremental
 ```
 
+You can also run the container with `podman`:
+
+```bash
+podman run --rm --volume="$PWD:/srv/jekyll:z" -p 4000:4000 -e JEKYLL_UID=48 -e JEKYLL_GID=48 -it jekyll/jekyll jekyll serve --incremental
+```
+
 Site preview will be available at [localhost:4000](http://localhost:4000).
 
 **Note:** the BITS button may not work when running locally.
 
 **Note:** images from old posts will not display as they're not included in the repository.
 
-**Note:** you have to init submodule
+**Note:** you have to init submodule (`git submodule update --init`)
 
 ## Preview on GitLab Pages
 

_config.yml

-title: POuL
-description: Politecnico Open unix Labs
+title: "POuL"
+description: "Politecnico Open unix Labs"
 
-url: https://poul.org
+url: "https://poul.org"
 baseurl: ""
-paginate_path: "events/page/:num/"
-permalink: /:year/:month/:title/
+paginate_path: "posts/page/:num/"
+permalink: "/:year/:month/:title/"
+static_url: "https://static.poul.org"
 
 markdown: kramdown
 highlighter: rouge
@@ -18,28 +19,36 @@ navigation:
     url: /index.html
   - title: About
     url: /about
-  - title: Events
-    url: /events
-  - title: Headquarters
-    url: /hq
+  - title: Courses
+    url: /courses
   - title: Coding Gym
     url: /coding_gym
-  - title: Contacts
-    url: /contact
+  - title: Projects
+    url: /projects
+  - title: Posts
+    url: /posts
 
 exclude:
+  - Gemfile
+  - Gemfile.lock
+  - README.md
+  - LICENSE
   - scripts
-  - node_modules
+  - examples
+  - .sass-cache
+  - vendor
+  - .bundle
 
 social:
-  telegram: poulpolimi
-  instagram: poul.polimi
-  facebook: poul.polimi
-  twitter: poul_polimi
-  github: Politecnico-Open-unix-Labs
-  youtube: POuLpolimi
-  rss: '/feed.xml'
-  email: https://list.poul.org/postorius/lists/mailinglist.poul.org/
+  telegram: "poulpolimi"
+  instagram: "poul.polimi"
+  facebook: "poul.polimi"
+  twitter: "poul_polimi"
+  github: "Politecnico-Open-unix-Labs"
+  youtube: "POuLpolimi"
+  rss: "/feed.xml"
+  email: "https://list.poul.org/postorius/lists/mailinglist.poul.org/"
 
 sass:
-  sass_dir: assets/_sass
\ No newline at end of file
+  sass_dir: assets/_sass
+  style: compressed
\ No newline at end of file

_data/coding_gym/2019-10-29.yaml

-date: 2019-10-29 17:15
-room: E/F
-coding_gym_url: https://coding-gym.org/events/2019-10-29-it-polimi/
-contest_url: https://www.hackerrank.com/coding-gym-polimi1019
-registration_url: https://coding-gym-polimi1019.eventbrite.it
\ No newline at end of file

_data/coding_gym/2019-11-25.yaml

-date: 2019-11-25 17:15
-room: 5.0.3
-coding_gym_url: https://coding-gym.org/events/2019-11-25-it-polimi/
-contest_url: https://www.hackerrank.com/coding-gym-polimi1119
-registration_url: https://coding-gym-polimi1119.eventbrite.it
\ No newline at end of file

_data/coding_gym/2020-01-24.yaml

-date: 2020-01-24 17:15
-room: 3.1.6
-coding_gym_url: https://coding-gym.org/events/2020-01-24-it-polimi/
-contest_url: https://www.hackerrank.com/coding-gym-polimi0120
-registration_url: https://coding-gym-polimi0120.eventbrite.it
\ No newline at end of file

_data/coding_gym/2020-02-26.yaml

-date: 2020-02-26 17:15
-room: 5.0.2
-coding_gym_url: https://coding-gym.org/events/2020-02-26-it-polimi/
-contest_url: https://www.hackerrank.com/coding-gym-polimi0220
-registration_url: https://coding-gym-polimi0220.eventbrite.it
\ No newline at end of file

courses @ e48fd33d

+Subproject commit e48fd33d0b808bb0b9414eb6e42a0b6723b534ce

_includes/bits-button.html

-<div class="material-kit hq-status-fab">
-  <a class="btn btn-round btn-lg btn-gialla loading" href="https://bits.poul.org" title="POuL headquarters status">
-    <i class="loading-indicator fa fa-sync fa-spin fa-fw"></i>
-    <div class="ripple-container"></div>
-  </a>
+<div class="hq-status-fab">
+	<a class="btn bits bits-loading" href="https://bits.poul.org" title="POuL headquarters status"></a>
 </div>
 
 {% assign page.has_bits_button = true %}

_includes/course_edition.html

+<div class="band course-edition">
+	{% if include.past_label %}
+	{% if include.edition.is_past %}
+	<h2>Last edition</h2>
+	{% else %}
+	<h2>Next edition</h2>
+	{% endif %}
+	{% endif %}
+
+	<h2 id="{{ edition.begins | date: '%Y-%m' }}">{{ include.edition.name | markdownify }}</h2>
+
+	{% if include.edition.description %}
+	<div class="container text-align-center">
+		{{ include.edition.description | markdownify }}
+	</div>
+	{% endif %}
+
+	{% if include.edition.schedule %}
+	<h3>Schedule</h3>
+
+	<div class="schedule">
+		{% for session in include.edition.schedule %}
+		<div class="session">
+			<div class="date">
+				{% if session.date %}
+				<div>{{ session.date | date: "%b %d" | upcase }}</div>
+				<div class="time">{{ session.date | date: "%H:%M" }}</div>
+				{% endif %}
+			</div>
+			<div class="room">
+				{% if session.room %}
+				<div class="caption">Room</div>
+				{% if session.room.url %}
+				<div><a href="{{ session.room.url }}">{{ session.room.room }}</a></div>
+				{% else %}
+				<div>{{ session.room.room }}</div>
+				{% endif %}
+				{% endif %}
+			</div>
+			<div class="topics">
+				{% for topic in session.topics %}
+				<div>{{topic}}</div>
+				{% endfor %}
+			</div>
+		</div>
+		{% endfor %}
+	</div>
+	{% endif %}
+	{% if include.edition.sponsored %}
+	<p class="contribute">~ sponsorizzato dal Politecnico di Milano</p>
+	{% endif %}
+</div>
\ No newline at end of file

_includes/events.html

-  <ul class="posts noList">
-    {% for post in paginator.posts %}
-      <li>
-        <span class="date">{{ post.date | date: '%B %d, %Y' }}</span>
-        <h3><a class="post-link" href="{{ post.url | prepend: site.baseurl }}">{{ post.title }}</a></h3>
-        <p>{% if post.description %}{{ post.description }}{% else %}{{ post.excerpt | strip_html }}{% endif %}</p>
-      </li>
-    {% endfor %}
-  </ul>
-  <!-- Pagination links -->
-  <div class="pagination">
-    {% if paginator.previous_page %}
-      <a href="{{ paginator.previous_page_path | prepend: site.baseurl }}" class="previous button__outline">Newer Posts</a> 
-    {% endif %}
-    {% if paginator.next_page %}
-      <a href="{{ paginator.next_page_path | prepend: site.baseurl }}" class="next button__outline">Older Posts</a>
-    {% endif %}
-  </div>

_includes/events_list.html

@@ -4,7 +4,7 @@
 {% for category in events_categories %}
   <div class="styled-grid-item">
     <div>
-      <a href="{{ '/topic/' | append: category | append: '/' | prepend: site.baseurl }}">{{ category }}</a>
+      <a href="{{ '/topic/' | append: category | append: '/' | realtive_url | uri_escape }}">{{ category }}</a>
     </div>
   </div>
 {% endfor %}

_includes/footer.html

-<div class="footer content bg-darker">
-	<div class="container">
-		<p class="copy">&copy; {{ site.time | date: '%Y' }}
-			<a href="https://www.poul.org">POuL</a> •
-			<a href="https://gitlab.poul.org/sito/poul-jekyll">Source code</a> •
-			<a href="#" id="fix-sotto-storto-link" onclick="fixSottoStortoCit(); return false;">Fix rotation</a> •
-      <a href="{{ site.baseurl }}/privacy/">Privacy</a>
-		</p>
-
-		<div class="footer-links">
-			<ul class="noList">
-				{% if site.social.telegram %}
-				<li><a href="https://telegram.me/{{ site.social.telegram }}">
-                    <span class="fa-stack fa-lg">
-                        <i class="fa fa-circle fa-stack-2x"></i>
-                        <i class="fa fa-telegram fa-stack-1x link-icon"></i>
-                    </span>
-				</a></li>
-				{% endif %}
-				{% if site.social.instagram %}
-				<li><a href="https://www.instagram.com/{{ site.social.instagram }}">
-                    <span class="fa-stack fa-lg">
-                        <i class="fa fa-circle fa-stack-2x"></i>
-                        <i class="fa fa-instagram fa-stack-1x link-icon"></i>
-                    </span>
-				</a></li>
-				{% endif %}
-				{% if site.social.facebook %}
-				<li><a href="https://www.facebook.com/{{ site.social.facebook }}">
-                    <span class="fa-stack fa-lg">
-                        <i class="fa fa-circle fa-stack-2x"></i>
-                        <i class="fa fa-facebook fa-stack-1x link-icon"></i>
-                    </span>
-				</a></li>
-				{% endif %}
-				{% if site.social.twitter %}
-				<li><a href="https://twitter.com/{{ site.social.twitter }}">
-                    <span class="fa-stack fa-lg">
-                        <i class="fa fa-circle fa-stack-2x"></i>
-                        <i class="fa fa-twitter fa-stack-1x link-icon"></i>
-                    </span>
-				</a></li>
-				{% endif %}
-				{% if site.social.youtube %}
-				<li><a href="https://www.youtube.com/user/{{ site.social.youtube }}/videos">
-                    <span class="fa-stack fa-lg">
-                        <i class="fa fa-circle fa-stack-2x"></i>
-                        <i class="fa fa-youtube fa-stack-1x link-icon"></i>
-                    </span>
-				</a></li>
-				{% endif %}
-				{% if site.social.github %}
-				<li><a href="https://github.com/{{ site.social.github }}">
-                    <span class="fa-stack fa-lg">
-                        <i class="fa fa-circle fa-stack-2x"></i>
-                        <i class="fa fa-github fa-stack-1x link-icon"></i>
-                    </span>
-				</a></li>
-				{% endif %}
-				{% if site.social.rss %}
-				<li><a href="{{ site.social.rss }}">
-                    <span class="fa-stack fa-lg">
-                        <i class="fa fa-circle fa-stack-2x"></i>
-                        <i class="fa fa-rss fa-stack-1x link-icon"></i>
-                    </span>
-				</a></li>
-				{% endif %}
-				{% if site.social.email %}
-				<li><a href="{{ site.social.email }}">
-                    <span class="fa-stack fa-lg">
-                        <i class="fa fa-circle fa-stack-2x"></i>
-                        <i class="fa fa-envelope fa-stack-1x link-icon"></i>
-                    </span>
-				</a></li>
-				{% endif %}
-			</ul>
-		</div>
+<footer class="bg-black">
+	<div>
+		&copy; {{ site.time | date: '%Y' }}
+		<span>• <a href="https://www.poul.org">POuL</a></span>
+		<span>• <a href="https://g