How did CMake Documentation deal with its Version Switcher before v3.9.0?

Development
1

Hello CMake Team.

According to this topic, the mechanism of adding the Version Switcher into CMake Documentation is to pass -A versionswitch=1 to Sphinx flag. Therefore, we can see the following codes in the Utilities/Sphinx/templates/layout.html:

{% block extrahead %}
  {% if versionswitch is defined %}
  <script type="text/javascript" src="{{ pathto('../version_switch.js', 1) }}"></script>
  {% endif %}
{{ super() }}
{% endblock %}

However, I noticed that there isn’t such codes in the Utilities/Sphinx/templates/layout.html before v3.9.0 (for example, v3.8.2).

Click to expand 
{% extends "!layout.html" %}
{% block rootrellink %}
  <li>
    <img src="{{ pathto('_static/cmake-logo-16.png', 1) }}" alt=""
         style="vertical-align: middle; margin-top: -2px" />
  </li>
  <li>
    <a href="https://cmake.org/">CMake</a>{{ reldelim1 }}
  </li>
  <li>
    <a href="{{ pathto(master_doc) }}">{{ shorttitle|e }}</a>{{ reldelim1 }}
  </li>
{% endblock %}

{# Put some context in the html title element. Workaround for #}
{# https://bitbucket.org/birkenfeld/sphinx/issue/1492/qthelp-generate-html-title-element-should #}
{% block htmltitle %}
  <title>{{ title|striptags|e }} {{ "&mdash;"|safe }} {{ docstitle|e }}</title>
{% endblock %}

Therefore, I wonder how did CMake Documentation deal with its Version Switcher before v3.9.0?

2

We manually added the version switch retroactively in a local/unpublished branch of each older version, and regenerated it as a one-shot update to the docs published on cmake.org.