= The Trac Configuration File [[TracGuideToc]] [[PageOutline]] Trac configuration is done by editing the '''`trac.ini`''' config file, located in `/conf/trac.ini`. Changes to the configuration are usually reflected immediately, though changes to the `[components]` or `[logging]` sections will require restarting the web server. You may also need to restart the web server after creating a global configuration file when none was previously present. The `trac.ini` configuration file and its parent directory should be writable by the web server, as Trac currently relies on the possibility to trigger a complete environment reload to flush its caches. == Global Configuration In versions prior to 0.11, the global configuration was by default located in `$prefix/share/trac/conf/trac.ini` or `/etc/trac/trac.ini`, depending on the distribution. If you're upgrading, you may want to specify that file to inherit from. Literally, when you're upgrading to 0.11, you have to add an `[inherit]` section to your project's `trac.ini` file. Additionally, you have to move your customized templates and common images from `$prefix/share/trac/...` to the new location. Global options will be merged with the environment-specific options, where local options override global options. The options file is specified as follows: {{{ [inherit] file = /path/to/global/trac.ini }}} Multiple files can be specified using a comma-separated list. Note that you can also specify a global option file when creating a new project, by adding the option `--inherit=/path/to/global/trac.ini` to [TracAdmin#initenv trac-admin]'s `initenv` command. If you do not do this but nevertheless intend to use a global option file with your new environment, you will have to go through the newly generated `conf/trac.ini` file and delete the entries that will otherwise override those set in the global file. There are two more entries in the [[#inherit-section| [inherit] ]] section, `templates_dir` for sharing global templates and `plugins_dir`, for sharing plugins. Those entries can themselves be specified in the shared configuration file, and in fact, configuration files can even be chained if you specify another `[inherit] file` there. Note that the templates found in the `templates/` directory of the TracEnvironment have precedence over those found in `[inherit] templates_dir`. In turn, the latter have precedence over the installed templates, so be careful about what you put there. Notably, if you override a default template, refresh your modifications when you upgrade to a new version of Trac. The preferred way to perform TracInterfaceCustomization is still to write a custom plugin doing an appropriate `ITemplateStreamFilter` transformation. == Reference for settings This is a brief reference of available configuration options, and their default settings. ''Note that the [hg], [spam-filter], [translatedpages], [vote], [wikiextras] and [wikiextras-symbols] sections below are added by plugins enabled on this Trac, and therefore won't be part of a default installation.'' Documentation improvements should be discussed on the [trac:MailingList#Trac-dev trac-dev mailing list] or described in a [trac:NewTicket ticket]. Even better, send [trac:TracDev/SubmittingPatches submit a patch] against the docstrings in the code. {{{ #!comment Please don't waste your time by editing the HTML code below, changes won't be picked up. Instead, follow the above guidance for suggesting documentation improvements. }}} [[TracIni]] ---- See also: TracGuide, TracAdmin, TracEnvironment