108 lines
3.4 KiB
Markdown
108 lines
3.4 KiB
Markdown
---
|
|
layout: post
|
|
title: "Pubsubhubbub with Octopress"
|
|
date: 2013-01-02 21:44
|
|
comments: true
|
|
categories: superfeedr octopress pubsubhubbub real-time
|
|
---
|
|
|
|
In this article I explain how to set up octopress with
|
|
[pubsubhubbub](https://en.wikipedia.org/wiki/PubSubHubbub), to get
|
|
push-enabled feeds. In my example I use [superfeedr](http://superfeedr.com/), which is free to use.
|
|
|
|
After you signup up a hub, in my case [higgsboson.superfeedr.com](http://higgsboson.superfeedr.com),
|
|
you have to add a hub reference to your atom feed.
|
|
|
|
```yaml _config.yml
|
|
# ....
|
|
|
|
# pubsubhubbub
|
|
hub_url: http://higgsboson.superfeedr.com/ # <--- replace this with your hub
|
|
```
|
|
|
|
Insert this line:
|
|
|
|
{% raw %}
|
|
``` xml
|
|
{% if site.hub_url %}<link href="{{ site.hub_url }}" rel="hub"/>{% endif %}
|
|
```
|
|
{% endraw %}
|
|
|
|
into `source/atom.xml`. So it looks like this:
|
|
|
|
{% raw %}
|
|
```xml source/atom.xml
|
|
<?xml version="1.0" encoding="utf-8"?>
|
|
<feed xmlns="http://www.w3.org/2005/Atom">
|
|
|
|
<title><![CDATA[{{ site.title }}]]></title>
|
|
<link href="{{ site.url }}/atom.xml" rel="self"/>
|
|
<link href="{{ site.url }}/"/>
|
|
{% if site.hub_url %}<link href="{{ site.hub_url }}" rel="hub"/>{% endif %}
|
|
<updated>{{ site.time | date_to_xmlschema }}</updated>
|
|
<id>{{ site.url }}/</id>
|
|
<author>
|
|
<name><![CDATA[{{ site.author | strip_html }}]]></name>
|
|
{% if site.email %}<email><![CDATA[{{ site.email }}]]></email>{% endif %}
|
|
</author>
|
|
<generator uri="http://octopress.org/">Octopress</generator>
|
|
|
|
{% for post in site.posts limit: 20 %}
|
|
<entry>
|
|
<title type="html"><![CDATA[{{ post.title | cdata_escape }}]]></title>
|
|
<link href="{{ site.url }}{{ post.url }}"/>
|
|
<updated>{{ post.date | date_to_xmlschema }}</updated>
|
|
<id>{{ site.url }}{{ post.id }}</id>
|
|
<content type="html"><![CDATA[{{ post.content | expand_urls: site.url | cdata_escape }}]]></content>
|
|
</entry>
|
|
{% endfor %}
|
|
</feed>
|
|
```
|
|
{% endraw %}
|
|
|
|
To push out updates, you have to ping your hub, this is easily done in your
|
|
deploy rake task.
|
|
|
|
Add these lines to the end of your deploy task in your Rakefile:
|
|
|
|
```ruby
|
|
require 'net/http'
|
|
require 'uri'
|
|
hub_url = "higgsboson.superfeedr.com" # replace this with your hub
|
|
atom_url = "blog.higgsboson/atom.xml"
|
|
resp, data = Net::HTTP.post_form(URI.parse(hub_url),
|
|
{'hub.mode' => 'publish',
|
|
'hub.url' => atom_url})
|
|
raise "!! Hub notification error: #{resp.code} #{resp.msg}, #{data}" unless resp.code == "204"
|
|
puts "## Notified hub (" + hub_url + ") that feed #{atom_url} has been updated"
|
|
```
|
|
|
|
So you end up with something like this:
|
|
|
|
``` ruby Rakefile
|
|
desc "Default deploy task"
|
|
task :deploy do
|
|
# Check if preview posts exist, which should not be published
|
|
if File.exists?(".preview-mode")
|
|
puts "## Found posts in preview mode, regenerating files ..."
|
|
File.delete(".preview-mode")
|
|
Rake::Task[:generate].execute
|
|
end
|
|
|
|
Rake::Task[:copydot].invoke(source_dir, public_dir)
|
|
Rake::Task["#{deploy_default}"].execute
|
|
|
|
require 'net/http'
|
|
require 'uri'
|
|
hub_url = "higgsboson.superfeedr.com"
|
|
atom_url = "blog.higgsboson/atom.xml"
|
|
resp, data = Net::HTTP.post_form(URI.parse(hub_url),
|
|
{'hub.mode' => 'publish',
|
|
'hub.url' => atom_url})
|
|
raise "!! Hub notification error: #{resp.code} #{resp.msg}, #{data}" unless resp.code == "204"
|
|
puts "## Notified hub (" + hub_url + ") that feed #{atom_url} has been updated"
|
|
end
|
|
```
|
|
|
|
Now whenever you run `rake deploy`, it will automaticly update your hub.
|