wiki:TracInstall

Version 2 (modified by trac, 16 years ago) ( diff )

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Trac Installation Guide for 0.12dev

NOTE: this page is for 0.12dev (trunk), for which development has started. For installing previous Trac versions, please refer to TracInstall (0.11)

Table of Contents

Trac is written in the Python programming language and needs a database, ​SQLite, ​PostgreSQL, or ​MySQL. For HTML rendering, Trac uses the ​Genshi templating system.

Since 0.12, Trac can also be localized, and there's probably a translation available for your language. If this is what you want, then make sure you have installed the optional package Babel. Trac can still be installed without Babel, but then you will only get the english version, as usual. If you're interested in contributing new translations for other languages or enhance the existing translations, then please have a look at TracL10N.

What follows are generic instructions for installing and setting up Trac and its requirements. While you can find instructions for installing Trac on specific systems at TracInstallPlatforms on the main Trac site, please be sure to first read through these general instructions to get a good understanding of the tasks involved.

Short - Install a released version

For the quick install, make sure you have ​Python-2.5, ​easy_install and SQlite-3.3.4 installed (or above). (You also might want to install python-dev to build genshi) 

sudo easy_install http://svn.edgewall.org/repos/trac/trunk

Requirements - also older versions possible

To install Trac, the following software packages must be installed:

  • ​Python, version >= 2.3
    • if using mod_python together with xml-related things, use python-2.5. expat is namespaced there and does not cause apache to crash any more(see ​here for details).
    • For RPM-based systems you might also need the python-devel and python-xml packages.
    • See instructions in TracOnWindows/Python2.5
  • ​setuptools, version >= 0.6
  • ​Genshi, version >= 0.4.1
  • You also need a database system and the corresponding python drivers for it. The database can be either SQLite, PostgreSQL or MySQL (experimental).

For SQLite

  • ​SQLite, version 3.3.4 and above preferred (note: it is preinstalled in Python 2.5.2).
  • If not using Python-2.5: ​PySQLite, version 1.x (for SQLite 2.x) or version 2.x (for SQLite 3.x), version 2.3.2 preferred. For details see ​PySqlite

Note: It appears that PySQLite 2.x is required if you plan to use the 'trac-post-commit-hook.py' script available from the 'contrib' section of the source repository.

Note: Users of Mac OS X please take care; the Apple-supplied SQLite contains additional code to support file locking on network filesystems like AFP or SMB. This is not presently (3.3.6) in the mainline sources, so if you build your own SQLite from source it will not function correctly on such filesystems - typically it gives the error "database is locked". ​A patch is available for version 3.3.6, based on Apple's code, otherwise you're probably best off using the Apple supplied version (presently 3.1.3).

For PostgreSQL

Warning: PostgreSQL 8.3 uses a strict type checking mechanism. To use Trac with the 8.3 Version of PostgreSQL, you will need ​trac-0.11 or later.

For MySQL

Warning: MySQL support is currently still experimental. That means it works for some people, but several issues remain, in particular regarding the use of unicode and the key length in the repository cache. See ​MySqlDb for more detailed information.

Optional Requirements

Version Control System

Please note: if using Subversion, Trac must be installed on the same machine. Remote repositories are currently not supported.

  • ​Subversion, version >= 1.0. (versions recommended: 1.2.4, 1.3.2 or 1.4.2) and the corresponding Python bindings. For troubleshooting, check ​TracSubversion
    • Trac uses the ​SWIG bindings included in the Subversion distribution, not ​PySVN (which is sometimes confused with the standard SWIG bindings).
    • If Subversion was already installed without the SWIG bindings, on Unix you'll need to re-configure Subversion and make swig-py, make install-swig-py.
    • There are ​pre-compiled bindings available for win32.
  • Support for other version control systems is provided via third-parties. See ​PluginList and ​VersioningSystemBackend.

Web Server

For those stuck with Apache 1.3, it is also possible to get Trac working with ​mod_python 2.7 (see TracModPython2.7). This guide hasn't been updated since 0.84, so it may or may not work.

Other Python Utilities

Attention: The various available versions of these dependencies are not necessarily interchangable, so please pay attention to the version numbers above. If you are having trouble getting Trac to work please double-check all the dependencies before asking for help on the ​MailingList or ​IrcChannel.

Please refer to the documentation of these packages to find out how they are best installed. In addition, most of the ​platform-specific instructions also describe the installation of the dependencies. Keep in mind however that the information there probably concern older versions of Trac than the one you're installing (there are even some pages that are still talking about Trac 0.8!).

Installing Trac

One way to install Trac is using setuptools. With setuptools you can install Trac from the subversion repository; for example, to install release version 0.12dev do: 

easy_install http://svn.edgewall.org/repos/trac/trunk

But of course the python-typical setup at the top of the source directory also works: 

$ python ./setup.py install

See SubversionRepository for details about getting the source.

Note 1: you'll need root permissions or equivalent for this step.
Note 2: installing from source is the preferred method if you want to have a localized version of Trac

This will byte-compile the python source code and install it as an .egg file or folder in the site-packages directory of your Python installation. The .egg will also contain all other resources needed by standard Trac, such as htdocs and templates.

The script will also install the trac-admin command-line tool, used to create and maintain project environments, as well as the tracd standalone server.

If you want to make Trac available in other languages, make sure you have installed Babel and then run this additional step before doing the install (or simply redo the install afterwards): 

$ python ./setup.py compile_catalog -f

(the -f flag is needed as long as some translations are marked fuzzy, i.e. incomplete, which will most probably be the case during the whole development period, as strings are continuously added or modified)

Advanced Options

To install Trac to a custom location, or find out about other advanced installation options, run: 

easy_install --help

Also see ​Installing Python Modules for detailed information.

Specifically, you might be interested in: 

easy_install --prefix=/path/to/installdir

or, if installing Trac to a Mac OS X system: 

easy_install --prefix=/usr/local --install-dir=/Library/Python/2.5/site-packages

The above will place your tracd and trac-admin commands into /usr/local/bin and will install the Trac libraries and dependencies into /Library/Python/2.5/site-packages, which is Apple's preferred location for third-party Python application installations.

Creating a Project Environment

A Trac environment is the backend storage where Trac stores information like wiki pages, tickets, reports, settings, etc. An environment is basically a directory that contains a human-readable configuration file and various other files and directories.

A new environment is created using trac-admin: 

$ trac-admin /path/to/myproject initenv

trac-admin will prompt you for the information it needs to create the environment, such as the name of the project, the type and the path to an existing source code repository, the database connection string, and so on. If you're not sure what to specify for one of these options, just leave it blank to use the default value. The database connection string in particular will always work as long as you have SQLite installed. Leaving the path to the source code repository empty will disable any functionality related to version control, but you can always add that back when the basic system is running.

Also note that the values you specify here can be changed later by directly editing the TracIni configuration file.

Note: The user account under which the web server runs will require write permissions to the environment directory and all the files inside. On Linux, with the web server running as user apache and group apache, enter:

chown -R apache.apache /path/to/myproject

Running the Standalone Server

After having created a Trac environment, you can easily try the web interface by running the standalone server tracd: 

$ tracd --port 8000 /path/to/myproject

Then, fire up a browser and visit http://localhost:8000/. You should get a simple listing of all environments that tracd knows about. Follow the link to the environment you just created, and you should see Trac in action. If you only plan on managing a single project with trac you can have the standalone server skip the environment list by starting it like this: 

$ tracd -s --port 8000 /path/to/myproject

Running Trac on a Web Server

Trac provides three options for connecting to a "real" web server: CGI, FastCGI and mod_python. For decent performance, it is recommended that you use either FastCGI or mod_python.

If you're not afraid of running development code, you can also try running Trac on mod_wsgi. This should deliver even better performance than mod_python, but the module is not considered stable just yet.

Configuring Authentication

The process of adding, removing, and configuring user accounts for authentication depends on the specific way you run Trac. The basic procedure is described in the Adding Authentication section on the TracCgi page. To learn how to setup authentication for the frontend you're using, please refer to one of the following pages:

Automatic reference to the SVN changesets in Trac tickets

You can configure SVN to automatically add a reference to the changeset into the ticket comments, whenever files are committed to the repository. The description of the commit needs to contain one of the following formulas:

  • Refs #123 - to reference this changeset in #123 ticket
  • Fixes #123 - to reference this changeset and close #123 ticket with the default status fixed

All you have to do is to edit the post-commit hook in your SVN repository and make it execute trac-post-commit-hook coming with Trac.

If you are editing the post-commit hook for the first time you need to navigate to your SVN repository's hooks subfolder and rename existing there post-commit template: 

$ cd /path/to/svn/repository/hooks
$ mv post-commit.tmpl post-commit
$ chmod 755 post-commit

Next open it in any text editor and add a line with path to the Trac environment connected with this SVN repository and another line executing the trac-post-commit-hook script: 

REPOS="$1"
REV="$2"
TRAC_ENV="/path/to/your/trac/project"

/usr/bin/python /usr/local/bin/trac-post-commit-hook -p "$TRAC_ENV" -r "$REV"

Make sure that trac-post-commit-hook exists in above path with execution permissions for the same user which SVN is running from. This script can be found in contrib subfolder of your Trac distribution and the latest version can be always downloaded from trunk/contrib/trac-post-commit-hook.

Platform-specifics installations

Using Trac

Once you have your Trac site up and running, you should be able to browse your subversion repository, create tickets, view the timeline, etc.

Keep in mind that anonymous (not logged in) users can by default access most but not all of the features. You will need to configure authentication and grant additional permissions to authenticated users to see the full set of features.

Enjoy!

​The Trac Team

See also: TracInstallPlatforms, TracGuide, TracCgi, TracFastCgi, TracModPython, TracModWSGI, TracUpgrade, TracPermissions

Note: See TracWiki for help on using the wiki.