apt/_includes/apt-add.html

{% assign apt-add_domain = include.domain | default: site.apt.domain %}

{% if include.distribution != 'focal' %}
<blockquote>
	<h4>If you are on Ubuntu 20.04 (focal) do this</h4>
	{% highlight bash %}
wget http://mirrors.edge.kernel.org/ubuntu/pool/main/i/icu/libicu60_60.2-3ubuntu3.1_amd64.deb
sudo dpkg -i ./libicu60_60.2-3ubuntu3.1_amd64.deb
sudo apt-add-repository -y 'deb [arch=amd64] https://{{ apt-add_domain }}/{{ include.repo }} bionic {{ include.components }}'{% endhighlight %}
</blockquote>
{% endif %}

{% if include.distribution %}
{% highlight bash %}
sudo apt-add-repository -y 'deb [arch=amd64] https://{{ apt-add_domain }}/{{ include.repo }} {{ include.distribution }} {{ include.components }}'{% if include.update == true %}
sudo apt-get update{% endif %}
{% endhighlight %}
{% else %}
<h4>For bash like shells.</h4>
{% highlight bash %}
sudo apt-add-repository -y 'deb [arch=amd64] https://{{ apt-add_domain }}/{{ include.repo }} `lsb_release -cs` {{ include.components }}'{% if include.update == true %}
sudo apt-get update{% endif %}
{% endhighlight %}

<h4>If you are using fish</h4>
{% highlight bash %}
sudo apt-add-repository -y 'deb [arch=amd64] https://{{ apt-add_domain }}/{{ include.repo }}' (lsb_release -cs) '{{ include.components }}'{% if include.update == true %}
sudo apt-get update{% endif %}
{% endhighlight %}
{% endif %}