zola/docs/content/documentation/templates/feeds/index.md
Kiyan Mair f5a200e64c
Fix RSS block example in documentation (#1210)
This commit fixes a bug in the documentation for the feeds page which
shows how to use the RSS block to enable feed autodiscovery.

The bug used an em space character instead of a space in one part of the
code snippet. If a user were to copy the code snippet into their code as
directed, the Zola build would fail with a parse error. The em space
appears identical to a regular space in monospaced fonts, making the
error seem mysterious or incorrect.

I believe the em space was used in order to prevent the shortcode from
rendering, as the code snippet is just meant to show what the shortcode
looks like. However, it is possible to escape the shortcode so that it
renders correctly without causing confusion for the user who expects to
be able to copy and paste it.

This commit replaces the em space in both code snippets with regular
spaces and escapes the shortcodes.
2020-10-21 13:00:16 +02:00

66 lines
3.1 KiB
Markdown

+++
title = "Feeds"
weight = 50
aliases = ["/documentation/templates/rss/"]
+++
If the site `config.toml` file sets `generate_feed = true`, then Zola will
generate a feed file for the site, named according to the `feed_filename`
setting in `config.toml`, which defaults to `atom.xml`. Given the feed filename
`atom.xml`, the generated file will live at `base_url/atom.xml`, based upon the
`atom.xml` file in the `templates` directory, or the built-in Atom template.
`feed_filename` can be set to any value, but built-in templates are provided
for `atom.xml` (in the preferred Atom 1.0 format), and `rss.xml` (in the RSS
2.0 format). If you choose a different filename (e.g. `feed.xml`), you will
need to provide a template yourself.
**Only pages with a date will be available.**
The feed template gets five variables:
- `config`: the site config
- `feed_url`: the full url to that specific feed
- `last_updated`: the most recent `updated` or `date` field of any post
- `pages`: see [page variables](@/documentation/templates/pages-sections.md#page-variables)
for a detailed description of what this contains
- `lang`: the language code that applies to all of the pages in the feed,
if the site is multilingual, or `config.default_language` if it is not
Feeds for taxonomy terms get two more variables, using types from the
[taxonomies templates](@/documentation/templates/taxonomies.md):
- `taxonomy`: of type `TaxonomyConfig`
- `term`: of type `TaxonomyTerm`, but without `term.pages` (use `pages` instead)
You can also enable separate feeds for each section by setting the
`generate_feed` variable to true in the respective section's front matter.
Section feeds will use the same template as indicated in the `config.toml` file.
Section feeds, in addition to the five feed template variables, get the
`section` variable from the [section
template](@/documentation/templates/pages-sections.md).
Enable feed autodiscovery allows feed readers and browsers to notify user about a RSS or Atom feed available on your web site. So it is easier for user to subscribe.
As an example this is how it looks like using [Firefox](https://en.wikipedia.org/wiki/Mozilla_Firefox) [Livemarks](https://addons.mozilla.org/en-US/firefox/addon/livemarks/?src=search) addon.
![RSS feed autodiscovery example.](rss_feed.png)
You can enable posts autodiscovery modifying your blog `base.html` template adding the following code in between the `<head>` tags.
```html
{% block rss %}
<link rel="alternate" type="application/rss+xml" title="RSS" href="{{/* get_url(path="rss.xml", trailing_slash=false) */}}">
{% endblock %}
```
You can as well use an Atom feed using `type="application/atom+xml"` and `path="atom.xml"`.
All pages on your site will refer to your post feed.
In order to enable the tag feeds as well, you can overload the `block rss` using the following code in your `tags/single.html` template.
```html
{% block rss %}
{% set rss_path = "tags/" ~ term.name ~ "/rss.xml" %}
<link rel="alternate" type="application/rss+xml" title="RSS" href="{{/* get_url(path=rss_path, trailing_slash=false) */}}">
{% endblock rss %}
```
Each tag page will refer to it's dedicated feed.