download: Introduce settings for updating maintenance banner

README.md

@@ -55,6 +55,8 @@ connect to the server in order to make changes.
 
 This branch is expected to be manually pulled into the download server.
 
+To update the maintenance page, edit [_config_download_maintenance.yml](_config_download_maintenance.yml) and submit a pull-request.
+
 | Branch | Jekyll build configuration |
 |--------|----------------------------|
 | [download-maintenance-slicer-org][branch-download-maintenance-slicer-org] | `--config _config.yml,_config_download.yml,_config_download_maintenance.yml` |
@@ -141,6 +143,7 @@ _The following instructions assumes you have docker installed. On Windows, you m
 
     config_opts=_config.yml,_config_dev.yml # For slicer.org
     #config_opts=_config.yml,_config_download.yml,_config_dev.yml # For download.slicer.org
+    #config_opts=_config.yml,_config_download.yml,_config_download_maintenance.yml,_config_dev.yml  # For download.slicer.org maintenance page
 
     rm -rf /_site/*
 
@@ -183,6 +186,14 @@ See [_config_download.yml](_config_download.yml)
 
 It is should be specified in addition of `_config.yml`.
 
+### `_config_download_maintenance.yml`
+
+The `_config_download_maintenance.yml` file contains settings used to generate the download site with a banner indicating
+that the regular downloads are not available and will be available soon.
+
+See [_config_download_maintenance.yml](_config_download_maintenance.yml)
+
+It is should be specified in addition of `_config.yml` and `_config_download.yml`.
 
 ### `index.markdown`
 

_config_download_maintenance.yml

@@ -1 +1,8 @@
-slicer_download_maintenance_enabled: true
+slicer_download_maintenance:
+  enabled: true
+  info_url: https://discourse.slicer.org/t/maintenance-of-download-slicer-org-slicer-kitware-com-and-slicer-packages-kitware-com-planned-for-june-27th-2023-2-00pm-to-4-00pm-et/30250
+  date: June 27th, 2023
+  start_time: 2:00 PM
+  end_time: 4:00 PM
+  duration: two hours
+  timezone: ET

download.markdown

@@ -16,17 +16,17 @@ animated_navbar: false
     Read about <a href="https://slicer.readthedocs.io/en/latest/user_guide/getting_started.html#system-requirements">system requirements</a>.
     </div>
 
-{% if site.slicer_download_maintenance_enabled %}
+{% if site.slicer_download_maintenance.enabled %}
     <div class="columns is-mobile is-centered has-text-centered">
 
       <div class="column is-12">
         <div class="notification is-warning">
             <p class="title is-4">
-            We&rsquo;ll be back very soon! Scheduled maintenance happening on June 27th, 2023.
+            We&rsquo;ll be back very soon! Scheduled maintenance happening on {{ site.slicer_download_maintenance.date }}.
             </p>
             <p class="content">
             Sorry for the inconvenience, but we are performing some maintenance at the moment.
-            If you have questions or would like to learn more, see <a href="https://discourse.slicer.org/t/maintenance-of-download-slicer-org-slicer-kitware-com-and-slicer-packages-kitware-com-planned-for-june-27th-2023-2-00pm-to-4-00pm-et/30250">here</a>, otherwise we anticipate the maintenance to last for approximately two hours, from 2:00 PM to 4:00 PM ET on June 27th, 2023.
+            If you have questions or would like to learn more, see <a href="{{ site.slicer_download_maintenance.info_url }}">here</a>, otherwise we anticipate the maintenance to last for approximately {{ site.slicer_download_maintenance.duration }}, from {{ site.slicer_download_maintenance.start_time }} to {{ site.slicer_download_maintenance.end_time }} {{ site.slicer_download_maintenance.timezone }} on {{ site.slicer_download_maintenance.date }}.
             </p>
             <p class="content">
             In the meantime, explore our <a href="https://slicer.readthedocs.io/">documentation</a> for tips on how to use Slicer or join our <a href="https://discourse.slicer.org/">forum</a> to connect with other users.