news_parse_ex

commit: 8580e00f537e3a01d65f7f9a81d11bc3461849e7
parent 312a3999820947792d3fa15ce0c3a4d10188bbff
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Tue, 27 Dec 2022 12:27:02 +0100

Get feed description

Diffstat:
M
lib/news_parse_ex.ex
11
+++++++++--
M
test/news_parse_ex_test.exs
3
+++

2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/lib/news_parse_ex.ex b/lib/news_parse_ex.ex
@@ -47,16 +47,23 @@ defmodule NewsParseEx do
 
   defp get_feed_last_update(_doc, :rss2_0), do: {:ok, nil, nil}
 
+  defp get_feed_description(_doc, :atom), do: {:ok, nil}
+
+  defp get_feed_description(doc, :rss2_0),
+    do: XML.string_from_xpath(~s[/rss/channel/description/text()], doc)
+
   def parse(str) when is_bitstring(str) do
     with {_, {:ok, doc}} <- {:parse, XML.parse_document(str)},
          {_, {:ok, feed_type}} <- {:type, get_feed_type(doc)},
-         {_, {:ok, title}} <- {:title, get_feed_title(doc, feed_type)},
          {_, {:ok, id}} <- {:id, get_feed_id(doc, feed_type)},
          {_, {:ok, last_update, _tz_offset}} <-
-           {:last_update, get_feed_last_update(doc, feed_type)} do
+           {:last_update, get_feed_last_update(doc, feed_type)},
+         {_, {:ok, title}} <- {:title, get_feed_title(doc, feed_type)},
+         {_, {:ok, description}} <- {:desc, get_feed_description(doc, feed_type)} do
       data = %{
         :type => feed_type,
         :title => title,
+        :description => description,
         :id => id,
         :last_update => last_update,
         :entries => []
diff --git a/test/news_parse_ex_test.exs b/test/news_parse_ex_test.exs
@@ -12,6 +12,7 @@ defmodule NewsParseExTest do
 
     {:ok, parsed} = NewsParseEx.parse(feed)
     assert(parsed.title == "Test Title")
+    assert(parsed.description == nil)
     assert(parsed.id == "https://example.org/feed/")
     assert(parsed.last_update == ~U[2021-11-01 16:09:55Z])
   end
@@ -21,6 +22,7 @@ defmodule NewsParseExTest do
 
     {:ok, parsed} = NewsParseEx.parse(feed)
     assert(parsed.title == "wlroots tags")
+    assert(parsed.description == nil)
     assert(parsed.id == "https://gitlab.freedesktop.org/wlroots/wlroots/-/tags")
     assert(parsed.last_update == ~U[2021-11-01T16:09:55Z])
   end
@@ -30,6 +32,7 @@ defmodule NewsParseExTest do
 
     {:ok, parsed} = NewsParseEx.parse(feed)
     assert(parsed.title == "~kaniini/pkgconf refs")
+    assert(parsed.description == "Git refs for ~kaniini/pkgconf")
     assert(parsed.id == "https://git.sr.ht/~kaniini/pkgconf/refs")
     assert(parsed.last_update == nil)
   end