Replace sphinxcontrib-newsfeed with sphinxfeed-lsaffre

The former has been unmaintained for many years, and no longer works
with recent versions of Sphinx.

The generated feed is not _identical_, but has essentially the same
content.

Fixes: #1455

Author: WhyNotHugo

CHANGELOG.rst

@@ -15,6 +15,8 @@ unreleased
 * FIX the location of caching database to ``$XDG_CACHE_HOME``
 * FIX color of eventcolumn when editing events in ikhal
 * FIX added support for ``icalendar>=7.0.0``.
+* NEW DEPENDENCY sphinxfeed-lsaffre
+* DROPPED DEPENDENCY sphinxcontrib-newsfeed
 
 0.13.0
 ======

doc/source/conf.py

@@ -106,7 +106,7 @@ def write_section(specsection, secname, key, comment, output):
     'sphinx.ext.autodoc',
     'sphinx.ext.intersphinx',
     'sphinx.ext.todo',
-    'sphinxcontrib.newsfeed',
+    'sphinxfeed',
 ]
 
 # Add any paths that contain templates here, relative to this directory.
@@ -307,5 +307,15 @@ def write_section(specsection, secname, key, comment, output):
 #texinfo_no_detailmenu = False
 
 
+# sphinxfeed ------------------------------------------------------------------
+
+feed_base_url = 'https://lostpackets.de/khal'
+feed_author = 'khal contributors'
+feed_description = 'News feed for khal - a standards based calendar program'
+feed_filename = 'index.rss'
+feed_field_name = 'date'
+
+# intersphinx -----------------------------------------------------------------
+
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {'python': ('https://docs.python.org/3', None)}

doc/source/hacking.rst

@@ -139,7 +139,7 @@ Documentation
 *************
 Khal's documentation, which is living in :file:`doc`, is using sphinx_ to
 generate the html documentation as well as the man page from the same sources.
-After install `sphinx` and `sphinxcontrib-newsfeed` you should be able to build
+After install `sphinx` and `sphinxfeed-lsaffre` you should be able to build
 the documentation with :command:`make html` and :command:`make man` respectively
 from the root of the :file:`doc` directory (note that this requires `GNU make`,
 so on some system running :command:`gmake` may be required).

doc/source/news.rst

@@ -7,10 +7,8 @@ available as an `rss feed <https://lostpackets.de/khal/index.rss>`_ |rss|.
  .. |rss| image:: images/rss.png
         :target: https://lostpackets.de/khal/index.rss
 
-.. feed::
-    :rss: index.rss
-    :title: khal news
-    :link: http://lostpackets.de/khal/
+.. toctree::
+    :hidden:
 
     news/khal0100
     news/khal098

doc/source/news/30c3.rst

@@ -1,9 +1,7 @@
+:date: 2013-12-13
 pycarddav and khal at 30c3
 ==========================
 
-.. feed-entry::
-        :date: 2013-12-13
-
 If you will be 30C3_ and would like to discuss the faults and merits of khal or
 pycarddav, commandline calendaring/addressbooking in general, your ideas or just
 have a beer or mate, I'd love to meet up. You can find my contact details under

doc/source/news/31c3.rst

@@ -1,9 +1,7 @@
+:date: 2014-12-09
 pycarddav and khal at 31c3
 ==========================
 
-.. feed-entry::
-        :date: 2014-12-09
-
 If you will be at 31C3_ and would like to discuss the faults and merits of khal
 or pycarddav, commandline calendaring/addressbooking in general, your ideas or
 just have a beer or mate, I'd love to meet up. You can find my contact details

doc/source/news/callfortesting.rst

@@ -1,9 +1,7 @@
+:date: 2013-11-19
 Call for Testing
 =================
 
-.. feed-entry::
-        :date: 2013-11-19
-
 While there isn't a release yet, *khal* is, at least partly, in a usable shape
 by now. Please report any errors you stumble upon and improvement suggestions
 you have either via email or github_ (if you don't have any privacy concerns

doc/source/news/khal01.rst

@@ -1,9 +1,7 @@
+:date: 2014-04-03
 khal v0.1 released
 ==================
 
-.. feed-entry::
-        :date: 2014-04-03
-
 The first release of khal is here: `khal v0.1.0`__ (and also available on pypi_
 now).
 

doc/source/news/khal0100.rst

@@ -1,9 +1,7 @@
+:date: 2019-03-25
 khal v0.10.0 released
 =====================
 
-.. feed-entry::
-        :date: 2019-03-25
-
 This is not only the first bugfix release in more than a year, but also the
 first release containing new features in nearly two years.
 

doc/source/news/khal011.rst

@@ -1,9 +1,7 @@
+:date: 2014-05-07
 khal v0.1.1 released
 ====================
 
-.. feed-entry::
-        :date: 2014-05-07
-
 A small bugfix release: `khal v0.1.0`__
 Example config file now in source dist.