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Extending Allura with Entry Points
===================================

There are many extension points to extending Allura.  They all make themselves
known to Allura via python entry points defined in ``setup.py``.  Many are then
available immediately.  Others, such as authentication providers or themes, need
to be specified in your ``.ini`` file, since you may only have one enabled at a time.

The available extension points for Allura are:

* :class:`allura.app.Application` (aka tool) and :class:`allura.app.Artifact`
* :class:`allura.lib.plugin.ThemeProvider`
* :class:`allura.lib.plugin.ProjectRegistrationProvider`
* :class:`allura.lib.plugin.AuthenticationProvider`
* :class:`allura.lib.plugin.UserPreferencesProvider`
* :class:`allura.lib.plugin.AdminExtension`
* :class:`allura.lib.spam.SpamFilter`
* ``site_stats`` in the root API data.  Docs in :class:`allura.controllers.rest.RestController`
* :mod:`allura.lib.package_path_loader` (for overriding templates)
* ``[allura.timers]`` functions which return a list or single :class:`timermiddleware.Timer` which will be included in stats.log timings

A listing of available 3rd-party extensions is at https://forge-allura.apache.org/p/allura/wiki/Extensions/

To disable any Allura entry point, simply add an entry in your ``.ini`` config file
with names and values corresponding to entry points defined in any ``setup.py`` file.
For example if you have ForgeImporter set up, but want to disable the google code importers::

    disable_entry_points.allura.project_importers = google-code
    disable_entry_points.allura.importers = google-code-tracker, google-code-repo

Other entry points are used to provide ``paster`` commands and ``easy_widget`` configuration,
which are not part of Allura but are used by Allura.


Event Handlers
==============

Another way to extend Allura is set up event handlers to respond to Allura events.
There is documentation and examples at :ref:`events`.

The events that allura publishes are:

* project_created
* project_updated
* repo_cloned
* repo_refreshed
* repo_clone_task_failed