centralized trac.ini

[Manuzhai]

I was just trying to trick the mod_python handler into displaying a prettier page where you can choose from different projects, and while I got it done in the end, it was not a very pretty solution. This was mainly due to the fact that only the env knows about things like template locations, htdocs_location, and other stuff.

To make it easier to use Trac with multiple projects, I think Trac should have a central configuration file (e.g., /etc/trac.ini) which contains defaults for all the options in the env trac.ini that are reasonable. These options can than be overwritten in env-specific trac.ini's.

Would this be as useful as I think? I could whip up a patch if necessary. :)

[Manuzhai]

Patch that adds a CENTRAL_CONFIG var.

[Christopher Lenz]

Well, trac.siteconfig already knows the location of all the default directories, and the other stuff is really environment specific. I don't see how a central configuration file would help very much there. The centralini.diff patch will obviously only work on Unix systems, and hardcoding the path isn't pretty.

A proper solution would be (IMHO) to add a PythonOption like TracEnvIndexTemplate to the mod_python handler. If you want to get fancy, you could allow setting constant HDF values for use in the template from the Apache config, like:

<Location /projects>
  SetHandler mod_python
  PythonHandler trac.ModPythonHandler
  PythonOption TracUriRoot /projects
  PythonOption TracEnvParentDir "/var/trac"
  PythonOption TracEnvIndexTemplate "/var/trac/index.cst"
  PythonOption TracTemplateVar "htdocs_common = /trac"
</Location>

[Christopher Lenz]

#1247 has been marked as duplicate of this ticket.

[Matthew Good <trac matt-good net>]

I've been thinking something like this would be useful for me as well.

I think I'm going to try a solution that will look for a trac.ini in TracEnvParentDir (to avoid the hardcoded path) and will provide a sort of templating ability for using the project path in the central ini (e.g. repository_dir = /var/svn/<project>, though with a different syntax)

[jason@…]

I've built an implementation of a templated index, following the idea that Chris gave above. Here's a link to my writeup: ​http://blog.mugfu.com/2005/03/29/template-ized-trac-indices/ The latest patch is in the comments there, and I'll attach a copy here as well.

[jason@…]

The patch for doing template-ized indices

[jason@…]

My sample index template

[jason@…]

patch to cleanly apply to [1467] plus

[Christopher Lenz]

I've checked code based on Jasons patch in [1498]. As that doesn't resolve the central trac.ini issue raised here, this ticket remains open.

[Christopher Lenz]

(Improved formatting of description)

[trac-form@…]

Patch implementing global configuration "underlay" at <prefix>/share/trac/conf/trac.ini.

[trac-form@…]

Patch implementing global configuration "underlay" at <prefix>/share/trac/conf/trac.ini (new patch includes updates to unit test)

[trac-form@…]

This works with the following global configuration file, both with the plugin explicitly disabled and enabled.

[project]
icon = swapoff.ico

[disabled_components]
acct_mgr = yes

[trac-form@…]

Take 3, minus stupid bug. Unit tests completed successfully.

[trac-form@…]

WebAdmin needs to be updated with the following patch, as removing the config element falls back on the site wide default, which may in fact itself be 'yes'.

webadmin/plugin.py

@@ -135 +135 @@
                 if is_enabled:
                     self.config.set('disabled_components', component, 'yes')
                 else:
-                    self.config.remove('disabled_components', component)
+                    self.config.set('disabled_components', component, 'no')
                 self.log.info('%sabling component %s',
                               is_enabled and 'Dis' or 'En', component)
                 changes = True

[trac-form@…]

After some feedback from cmlenz, this version seems to be quite unobtrusive

[dserodio@…]

I don't understand the proposed solution: does the "centralized trac.ini" file set defaults for each project, or does it override values in each project's config?

[trac-form@…]

It does not override, it is a fallback if a key does not exist in a Trac environment.

[Christopher Lenz]

I'll try integrating this. The component configuration and #2019 is making this higher priority, among other things.

[Christopher Lenz]

Implemented in [2335].

[dserodio@…]

It would be nice to have the Trac installation have a "central" trac.ini and have trac-admin ... initenv create just a minimal trac.ini, so that the configuration for multiple Trac environments is kept centralized.

[dserodio@…]

I'm willing to implement my previous suggestion, if the Trac developers think it's a good idea. I think just the [project] section should be placed on a per-environment trac.ini, the other settings may be kept centralized instead of repeated in all environments.

What do you think?

[thomas.jachmann@…]

IMHO, it'd be nice to only override those settings that are not set in the central trac.ini or that are chosen to be different from those settings by the user of trac-admin.