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[[template id=plugin name=aggregate author="[[Joey]]"]]
[[tag type/useful]]
This plugin allows content from other feeds to be aggregated into the wiki.
Aggregate a feed as follows
\[[aggregate name="example blog"
feedurl="http://example.com/index.rss"
url="http://example.com/" updateinterval="15"]]
That example aggregates posts from the specified RSS feed, updating no
more frequently than once every 15 minutes, and puts a page per post under
the example/ directory in the wiki.
You can then use ikiwiki's [[ikiwiki/blog]] support to create a blog of one or
more aggregated feeds.
## setup
Make sure that you have the [[html]] plugin enabled, as the created pages are
in html format. The [[meta]] and [[tag]] plugins are also recommended. The
[[htmltidy]] plugin is suggested, since feeds can easily contain html
problems, some of which tidy can fix.
You will need to run ikiwiki periodically from a cron job, passing it the
--aggregate parameter, to make it check for new posts. Here's an example
crontab entry:
*/15 * * * * ikiwiki --setup my.wiki --aggregate --refresh
Alternatively, you can allow `ikiwiki.cgi` to trigger the aggregation. You
should only need this if for some reason you cannot use cron, and instead
want to use a service such as [WebCron](http://webcron.org). To enable
this, enable on `aggregate_webtrigger` in your setup file. The url to
visit is `http://whatever/ikiwiki.cgi?do=aggregate_webtrigger`. Anyone
can visit the url to trigger an aggregation run, but it will only check
each feed if its `updateinterval` has passed.
## usage
Here are descriptions of all the supported parameters to the `aggregate`
directive:
* `name` - A name for the feed. Each feed must have a unique name.
Required.
* `url` - The url to the web page for the feed that's being aggregated.
Required.
* `dir` - The directory in the wiki where pages should be saved. Optional,
if not specified, the directory is based on the name of the feed.
* `feedurl` - The url to the feed. Optional, if it's not specified ikiwiki
will look for feeds on the `url`. RSS and atom feeds are supported.
* `updateinterval` - How often to check for new posts, in minutes. Default
is 15 minutes.
* `expireage` - Expire old items from this feed if they are older than
a specified number of days. Default is to never expire on age.
* `expirecount` - Expire old items from this feed if there are more than
the specified number total. Oldest items will be expired first. Default
is to never expire on count.
* `tag` - A tag to tag each post from the feed with. A good tag to use is
the name of the feed. Can be repeated multiple times. The [[tag]] plugin
must be enabled for this to work.
Note that even if you are using subversion or another revision control
system, pages created by aggregation will *not* be checked into revision
control.
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