Changes between Version 2 and Version 3 of TracInstall


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Timestamp:
11/11/10 14:43:40 (3 years ago)
Author:
trac
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  • TracInstall

    v2 v3  
    1 = Trac Installation Guide for 0.11 =  
     1= Trac Installation Guide for 0.12 =  
    22[[TracGuideToc]] 
    33 
    44Trac is written in the Python programming language and needs a database, [http://sqlite.org/ SQLite], [http://www.postgresql.org/ PostgreSQL], or [http://mysql.com/ MySQL]. For HTML rendering, Trac uses the [http://genshi.edgewall.org Genshi] templating system. 
    55 
    6 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. 
    7  
    8 == Short - Install a released version == 
    9 For the quick install, make sure you have [http://python.org Python-2.5], [http://peak.telecommunity.com/DevCenter/EasyInstall#installing-easy-install easy_install] and SQlite-3.3.4 installed (or above). 
    10 {{{ 
    11 sudo easy_install Trac==0.11 
    12 }}} 
    13  
    14 == Requirements - also older versions possible == 
    15  
     6Since version 0.12, Trac can also be localized, and there's probably a translation available for your language. If you want to be able to use the Trac interface in other languages, then make sure you **first** have installed the optional package [#OtherPythonPackages Babel]. Lacking Babel, you will only get the default english version, as usual. If you install Babel later on, you will need to re-install Trac. 
     7 
     8If you're interested in contributing new translations for other languages or enhance the existing translations, then please have a look at [trac:wiki:TracL10N TracL10N]. 
     9 
     10What follows are generic instructions for installing and setting up Trac and its requirements. While you may 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. 
     11 
     12[[PageOutline(2-3,Installation Steps,inline)]] 
     13 
     14== Dependencies == 
     15=== Mandatory Dependencies 
    1616To install Trac, the following software packages must be installed: 
    1717 
    18  * [http://www.python.org/ Python], version >= 2.3 
    19    * 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 [http://www.dscpl.com.au/wiki/ModPython/Articles/ExpatCausingApacheCrash here] for details). 
    20    * For RPM-based systems you might also need the `python-devel` and `python-xml` packages. 
    21    * See instructions in ["TracOnWindows/Python2.5"] 
     18 * [http://www.python.org/ Python], version >= 2.4 and < 3.0 
     19   (note that we dropped the support for Python 2.3 in this release) 
    2220 * [http://peak.telecommunity.com/DevCenter/setuptools setuptools], version >= 0.6 
    23  * [http://genshi.edgewall.org/wiki/Download Genshi], version >= 0.4.1 
    24  * You also need a database system and the corresponding python drivers for it. 
    25    The database can be either SQLite, PostgreSQL or ''MySQL (experimental)''. 
    26  * optional if some plugins require it: [http://www.clearsilver.net/ ClearSilver] 
    27  
    28 === For SQLite === 
    29  
    30  * [http://www.sqlite.org/ SQLite], version 3.3.4 and above preferred. 
    31  * If not using Python-2.5: [http://pysqlite.org/ 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 
    32  
    33 ''Note: It appears that PySQLite 2.x is required for Trac 0.9+/SQLite 3.x if you plan to use the 'trac-post-commit-hook.py' script available from the 'contrib' section of the source repository.'' 
    34  
    35 ''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}}}". [http://www.alastairs-place.net/2006/07/sqlite_and_mac/ 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).'' 
    36  
    37 === For PostgreSQL === 
    38  
     21 * [http://genshi.edgewall.org/wiki/Download Genshi], version >= 0.6 
     22 
     23You also need a database system and the corresponding python bindings. 
     24The database can be either SQLite, PostgreSQL or MySQL. 
     25 
     26==== For the SQLite database #ForSQLite 
     27 
     28If you're using Python 2.5 or 2.6, you already have everything you need. 
     29 
     30If you're using Python 2.4 and need pysqlite, you can download from  
     31[http://code.google.com/p/pysqlite/downloads/list google code] the Windows installers or the tar.gz archive for building from source:  
     32{{{ 
     33$ tar xvfz <version>.tar.gz  
     34$ cd <version>  
     35$ python setup.py build_static install  
     36}}} 
     37  
     38This will extract the SQLite code and build the bindings.  
     39 
     40To install SQLite, your system may require the development headers. Without these you will get various GCC related errors when attempting to build: 
     41 
     42{{{ 
     43$ apt-get install libsqlite3-dev 
     44}}} 
     45 
     46SQLite 2.x is no longer supported, and neither is !PySqlite 1.1.x. 
     47 
     48A known bug !PySqlite versions 2.5.2-4 prohibits upgrade of trac databases 
     49from 0.11.x to 0.12. Please use versions 2.5.5 and newer or 2.5.1 and 
     50older. See [trac:#9434] for more detail. 
     51 
     52See additional information in [trac:PySqlite]. 
     53 
     54==== For the PostgreSQL database #ForPostgreSQL 
     55 
     56You need to install the database and its Python bindings: 
    3957 * [http://www.postgresql.org/ PostgreSQL] 
    40  * [http://initd.org/projects/psycopg2 psycopg2] or [http://pypgsql.sourceforge.net/ pyPgSQL] 
    41  
    42 '''Warning''': PostgreSQL 8.3 uses a strict type checking mechanism. To use Trac with the 8.3 Version of PostgreSQL, you will need [http://trac.edgewall.org/changeset/6512 trac-0.11] or later. 
    43  
    44 === For MySQL === 
    45  
    46 '''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. 
    47  
    48  * [http://mysql.com/ MySQL], version 4.1 or later 
    49  * [http://sf.net/projects/mysql-python MySQLdb], version 1.2.1 or later 
    50  
    51 === Optional Requirements === 
     58 * [http://pypi.python.org/pypi/psycopg2 psycopg2] 
     59 
     60See [trac:DatabaseBackend#Postgresql DatabaseBackend] for details. 
     61 
     62 
     63==== For the MySQL database #ForMySQL 
     64 
     65Trac can now work quite well with MySQL, provided you follow the guidelines. 
     66 
     67 * [http://mysql.com/ MySQL], version 5.0 or later 
     68 * [http://sf.net/projects/mysql-python MySQLdb], version 1.2.2 or later 
     69 
     70It is '''very''' important to read carefully the  [trac:MySqlDb] page before creating the database. 
     71 
     72=== Optional Dependencies 
    5273 
    5374==== Version Control System ==== 
    5475 
    55 '''Please note:''' if using Subversion, Trac must be installed on the '''same machine'''. Remote repositories are currently not supported. 
    56  
    57  * [http://subversion.tigris.org/ 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 
    58    * Trac uses the [http://svnbook.red-bean.com/svnbook-1.1/ch08s02.html#svn-ch-8-sect-2.3 SWIG] bindings included in the Subversion distribution, '''not''' [http://pysvn.tigris.org/ PySVN] (which is sometimes confused with the standard SWIG bindings). 
    59    * 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`. 
    60    * There are [http://subversion.tigris.org/servlets/ProjectDocumentList?folderID=91 pre-compiled bindings] available for win32.  
    61  * Support for other version control systems is provided via third-parties. See PluginList and VersioningSystemBackend. 
     76===== Subversion ===== 
     77 * [http://subversion.apache.org/ Subversion], 1.5.x or 1.6.x and the '''''corresponding''''' Python bindings. Older versions starting from 1.0, like 1.2.4, 1.3.2 or 1.4.2, etc. should still work. For troubleshooting information, check the [trac:TracSubversion#Troubleshooting TracSubversion] page. 
     78 
     79There are [http://subversion.apache.org/packages.html pre-compiled SWIG bindings] available for various platforms. (Good luck finding precompiled SWIG bindings for any Windows package at that listing. TracSubversion points you to [http://alagazam.net Algazam], which works for me under Python 2.6.) 
     80 
     81Note that Trac '''doesn't''' use [http://pysvn.tigris.org/ PySVN], neither does it work yet with the newer `ctype`-style bindings. [Is there a ticket for implementing ctype bindings?] 
     82 
     83 
     84'''Please note:''' if using Subversion, Trac must be installed on the '''same machine'''. Remote repositories are currently [trac:ticket:493 not supported]. 
     85 
     86 
     87===== Others ===== 
     88 
     89Support for other version control systems is provided via third-parties. See [trac:PluginList] and [trac:VersioningSystemBackend]. 
    6290 
    6391==== Web Server ==== 
    64  * A CGI-capable web server (see TracCgi), or 
    65  * a [http://www.fastcgi.com/ FastCGI]-capable web server (see TracFastCgi), or 
    66  * [http://httpd.apache.org/ Apache] with [http://code.google.com/p/modwsgi/ mod_wsgi] (see [wiki:TracModWSGI]) 
    67     * This should work with Apache 1.3, 2.0 or 2.2 and promises to deliver more performance than using mod_python. A little less mature than mod_python. 
    68  * [http://httpd.apache.org/ Apache] with [http://www.modpython.org/ mod_python 3.1.3+] (see TracModPython) 
    69     * When installing mod_python the development versions of Python and Apache are required (actually the libraries and header files) 
    70  
    71 For those stuck with Apache 1.3, it is also possible to get Trac working with [http://www.modpython.org/ mod_python 2.7] (see [wiki:TracModPython2.7 TracModPython2.7]). This guide hasn't been updated since 0.84, so it may or may not work. 
    72  
    73 ==== Other Python Utilities ==== 
    74  * [http://docutils.sourceforge.net/ docutils], version >= 0.3.9 for WikiRestructuredText. 
    75  * [http://pygments.pocoo.org Pygments] for [wiki:TracSyntaxColoring syntax highlighting], also [http://silvercity.sourceforge.net/ SilverCity] and/or [http://gnu.org/software/enscript/enscript.html Enscript] may still be used. 
    76     * Note that !SilverCity 0.9.6 has a [http://sourceforge.net/tracker/index.php?func=detail&aid=1424436&group_id=45693&atid=443739 bug] that breaks Python syntax highlighting in Trac. Until an update is made available, we recommend using version 0.9.5. 
    77  * [http://pytz.sf.net pytz] to get a complete list of time zones, otherwise Trac will fall back on a shorter list from an internal time zone implementation. 
    78  
    79 '''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. 
    80  
    81 Please refer to the documentation of these packages to find out how they are best installed. In addition, most of the [wiki:TracInstallPlatforms 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!). 
     92A web server is optional because Trac is shipped with a server included, see the [#RunningtheStandaloneServer Running the Standalone Server ] section below. 
     93 
     94Alternatively you configure Trac to run in any of the following environments. 
     95 * [http://httpd.apache.org/ Apache] with  
     96   - [http://code.google.com/p/modwsgi/ mod_wsgi], see [wiki:TracModWSGI] and  
     97     http://code.google.com/p/modwsgi/wiki/IntegrationWithTrac 
     98   - [http://modpython.org/ mod_python 3.3.1], deprecated: see TracModPython) 
     99 * a [http://www.fastcgi.com/ FastCGI]-capable web server (see TracFastCgi) 
     100 * an [http://tomcat.apache.org/connectors-doc/ajp/ajpv13a.html AJP]-capable web 
     101   server (see [trac:TracOnWindowsIisAjp]) 
     102 * a CGI-capable web server (see TracCgi), '''but usage of Trac as a cgi script  
     103   is highly discouraged''', better use one of the previous options.  
     104    
     105 
     106==== Other Python Packages ==== 
     107 
     108 * [http://babel.edgewall.org Babel], version >= 0.9.5,  
     109   needed for localization support[[BR]] 
     110   ''Note: '' If you want to be able to use the Trac interface in other languages, then make sure you first have installed the optional package Babel. Lacking Babel, you will only get the default english version, as usual. If you install Babel later on, you will need to re-install Trac.  
     111 * [http://docutils.sourceforge.net/ docutils], version >= 0.3.9  
     112   for WikiRestructuredText. 
     113 * [http://pygments.pocoo.org Pygments] for  
     114   [wiki:TracSyntaxColoring syntax highlighting]. 
     115   [http://silvercity.sourceforge.net/ SilverCity] and/or  
     116   [http://gnu.org/software/enscript/enscript.html Enscript] may still be used 
     117   but are deprecated and you really should be using Pygments. 
     118 * [http://pytz.sf.net pytz] to get a complete list of time zones, 
     119   otherwise Trac will fall back on a shorter list from  
     120   an internal time zone implementation. 
     121 
     122'''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 [trac:MailingList] or [trac:IrcChannel]. 
     123 
     124Please refer to the documentation of these packages to find out how they are best installed. In addition, most of the [trac:TracInstallPlatforms 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!). 
     125 
    82126 
    83127== Installing Trac == 
    84  
    85 One way to install Trac is using `setuptools`. 
    86 With setuptools you can install Trac from the subversion repository; for example, 
    87 to install release version 0.11b2 do: 
    88 {{{ 
    89 easy_install http://svn.edgewall.org/repos/trac/tags/trac-0.11b2 
    90 }}} 
    91  
    92 But of course the python-typical setup at the top of the source directory also works: 
     128=== Using `easy_install` 
     129One way to install Trac is using [http://pypi.python.org/pypi/setuptools setuptools]. 
     130With setuptools you can install Trac from the subversion repository;  
     131 
     132A few examples: 
     133 
     134 - install Trac 0.12: 
     135   {{{ 
     136   easy_install Trac==0.12 
     137   }}} 
     138 
     139 - install latest development version 0.12dev: 
     140   {{{ 
     141   easy_install Trac==dev 
     142   }}} 
     143   Note that in this case you won't have the possibility to run a localized version of Trac; 
     144   either use a released version or install from source  
     145 
     146=== Using `pip` 
     147'pip' is an easy_install replacement that is very useful to quickly install python packages. 
     148To get a trac installation up and running in less than 5 minutes: 
     149 
     150Assuming you want to have your entire pip installation in /opt/user/trac 
     151 
     152 -  
     153{{{ 
     154pip -E /opt/user/trac install trac psycopg2  
     155}}} 
     156or 
     157 -  
     158{{{ 
     159pip -E /opt/user/trac install trac mysql-python  
     160}}} 
     161 
     162Make sure your OS specific headers are available for pip to automatically build PostgreSQL (libpq-dev) or MySQL (libmysqlclient-dev) bindings. 
     163 
     164pip will automatically resolve all dependencies (like Genshi, pygments, etc.) and download the latest packages on pypi.python.org and create a self contained installation in /opt/user/trac  
     165 
     166All commands (tracd, trac-admin) are available in /opt/user/trac/bin . This can also be leveraged for mod_python (using PythonHandler directive) and mod_wsgi (using WSGIDaemonProcess directive) 
     167 
     168Additionally, you can install several trac plugins (listed [http://pypi.python.org/pypi?:action=search&term=trac&submit=search here]) through pip. 
     169 
     170 
     171 
     172=== From source 
     173Of course, using the python-typical setup at the top of the source directory also works. 
     174 
     175You can obtain the source for a .tar.gz or .zip file corresponding to a release (e.g. Trac-0.12.tar.gz), or you can get the source directly from the repository (see [trac:SubversionRepository] for details). 
     176 
    93177{{{ 
    94178$ python ./setup.py install 
    95179}}} 
    96180 
    97 ''Note: you'll need root permissions or equivalent for this step.'' 
     181''You'll need root permissions or equivalent for this step.'' 
    98182 
    99183This will byte-compile the python source code and install it as an .egg file or folder in the `site-packages` directory 
     
    102186The script will also install the [wiki:TracAdmin trac-admin] command-line tool, used to create and maintain [wiki:TracEnvironment project environments], as well as the [wiki:TracStandalone tracd] standalone server. 
    103187 
     188If you install from source and want to make Trac available in other languages, make sure  Babel is installed. Only then, perform the `install` (or simply redo the `install` once again afterwards if you realize Babel was not yet installed): 
     189{{{ 
     190$ python ./setup.py install 
     191}}} 
     192Alternatively, you can do a `bdist_egg` and copy the .egg from dist/ to the place of your choice, or you can create a Windows installer (`bdist_wininst`). 
     193 
    104194=== Advanced Options === 
    105195 
     
    119209easy_install --prefix=/usr/local --install-dir=/Library/Python/2.5/site-packages 
    120210}}} 
     211Note: If installing on Mac OS X 10.6 running {{{ easy_install http://svn.edgewall.org/repos/trac/trunk }}} will install into {{{ /usr/local }}} and {{{ /Library/Python/2.6/site-packages }}} by default 
    121212 
    122213The 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. 
    123214 
     215 
    124216== Creating a Project Environment == 
    125217 
    126 A [wiki:TracEnvironment 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. 
     218A [TracEnvironment 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 [TracIni configuration file], and various other files and directories. 
    127219 
    128220A new environment is created using [wiki:TracAdmin trac-admin]: 
     
    131223}}} 
    132224 
    133 [wiki:TracAdmin 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 [wiki:TracEnvironment#SourceCodeRepository source code repository], the [wiki:TracEnvironment#DatabaseConnectionStrings 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. 
    134  
    135 Also note that the values you specify here can be changed later by directly editing the [wiki:TracIni] configuration file. 
    136  
    137 ''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:'' 
    138  
    139   chown -R apache.apache /path/to/myproject 
    140  
     225[TracAdmin trac-admin] will prompt you for the information it needs to create the environment, such as the name of the project and the [TracEnvironment#DatabaseConnectionStrings database connection string]. If you're not sure what to specify for one of these options, just press `<Enter>` to use the default value.  
     226 
     227Using the default database connection string in particular will always work as long as you have SQLite installed. 
     228For the other [DatabaseBackend database backends] you should plan ahead and already have a database ready to use at this point. 
     229 
     230Since 0.12, Trac doesn't ask for a [TracEnvironment#SourceCodeRepository source code repository] anymore when creating an environment. Repositories can be [TracRepositoryAdmin added] afterward, or the version control support can be disabled completely if you don't need it. 
     231 
     232Also note that the values you specify here can be changed later by directly editing the [TracIni conf/trac.ini] configuration file. 
     233 
     234Finally, make sure the user account under which the web front-end runs will have '''write permissions''' to the environment directory and all the files inside. This will be the case if you run `trac-admin ... initenv` as this user. If not, you should set the correct user afterwards. For example on Linux, with the web server running as user `apache` and group `apache`, enter: 
     235{{{ 
     236# chown -R apache.apache /path/to/myproject 
     237}}} 
    141238 
    142239== Running the Standalone Server == 
     
    147244}}} 
    148245 
    149 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: 
     246Then, 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: 
    150247{{{ 
    151248$ tracd -s --port 8000 /path/to/myproject 
    152249}}} 
    153250 
    154  
    155251== Running Trac on a Web Server == 
    156252 
    157 Trac provides three options for connecting to a "real" web server: [wiki:TracCgi CGI], [wiki:TracFastCgi FastCGI] and [wiki:TracModPython mod_python]. For decent performance, it is recommended that you use either FastCGI or mod_python. 
    158  
    159 If you're not afraid of running development code, you can also try running Trac on [wiki:TracModWSGI mod_wsgi]. This should deliver even better performance than mod_python, but the module is not considered stable just yet. 
     253Trac provides various options for connecting to a "real" web server: [wiki:TracCgi CGI], [wiki:TracFastCgi FastCGI], [wiki:TracModWSGI mod_wsgi] and [wiki:TracModPython mod_python]. For decent performance, it is recommended that you use either FastCGI or mod_wsgi. 
     254 
     255Trac also supports [trac:TracOnWindowsIisAjp AJP] which may be your choice if you want to connect to IIS. 
     256 
     257==== Generating the Trac cgi-bin directory ==== 
     258 
     259In order for Trac to function properly with FastCGI you need to have a `trac.fcgi` file and for mod_wsgi a `trac.wsgi` file. These are Python scripts which load the appropriate Python code. They can be generated using the `deploy` option of [wiki:TracAdmin trac-admin]. 
     260 
     261There is, however, a bit of a chicken-and-egg problem. The [wiki:TracAdmin trac-admin] command requires an existing environment to function, but complains if the deploy directory already exists. This is a problem, because environments are often stored in a subdirectory of the deploy. The solution is to do something like this: 
     262{{{ 
     263mkdir -p /usr/share/trac/projects/my-project 
     264trac-admin /usr/share/trac/projects/my-project initenv 
     265trac-admin /usr/share/trac/projects/my-project deploy /tmp/deploy 
     266mv /tmp/deploy/* /usr/share/trac 
     267}}} 
     268 
     269==== Setting up the Plugin Cache ==== 
     270 
     271Some Python plugins need to be extracted to a cache directory. By default the cache resides in the home directory of the current user. When running Trac on a Web Server as a dedicated user (which is highly recommended) who has no home directory, this might prevent the plugins from starting. To override the cache location you can set the PYTHON_EGG_CACHE environment variable. Refer to your server documentation for detailed instructions on how to set environment variables. 
    160272 
    161273== Configuring Authentication == 
     
    164276 
    165277 * TracStandalone if you use the standalone server, `tracd`. 
    166  * TracCgi if you use the CGI or FastCGI methods. 
    167  * TracModPython if you use the mod_python method. 
    168  
    169 == Trac 0.11 & SVN on Mac OS X Leopard (10.5) == 
    170  
    171  * TracOnLeopardServer 
     278 * TracCgi if you use the CGI or FastCGI web front ends. 
     279 * [wiki:TracModWSGI] if you use the Apache mod_wsgi web front end. 
     280 * TracModPython if you use the Apache mod_python web front end. 
     281 
     282 
     283== Automatic reference to the SVN changesets in Trac tickets == 
     284 
     285You can configure SVN to automatically add a reference to the changeset into the ticket comments, whenever changes are committed to the repository. The description of the commit needs to contain one of the following formulas: 
     286 * '''`Refs #123`''' - to reference this changeset in `#123` ticket 
     287 * '''`Fixes #123`''' - to reference this changeset and close `#123` ticket with the default status ''fixed'' 
     288 
     289This functionality requires a post-commit hook to be installed as described in [wiki:TracRepositoryAdmin#ExplicitSync TracRepositoryAdmin], and enabling the optional commit updater components by adding the following line to the `[components]` section of your [wiki:TracIni#components-section trac.ini], or enabling the components in the "Plugins" admin panel. 
     290{{{ 
     291tracopt.ticket.commit_updater.* = enabled 
     292}}} 
     293For more information, see the documentation of the `CommitTicketUpdater` component in the "Plugins" admin panel. 
    172294 
    173295== Using Trac == 
    174296 
    175 Once you have your Trac site up and running, you should be able to browse your subversion repository, create tickets, view the timeline, etc. 
     297Once you have your Trac site up and running, you should be able to create tickets, view the timeline, browse your version control repository if configured, etc. 
    176298 
    177299Keep 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 [wiki:TracPermissions permissions] to authenticated users to see the full set of features. 
     
    179301'' Enjoy! '' 
    180302 
    181 [wiki:TracTeam The Trac Team] 
     303[trac:TracTeam The Trac Team] 
    182304 
    183305---- 
    184 See also:  TracGuide, TracCgi, TracFastCgi, TracModPython, [wiki:TracModWSGI], TracUpgrade, TracPermissions 
    185  
     306See also: [trac:TracInstallPlatforms TracInstallPlatforms], TracGuide, TracCgi, TracFastCgi, TracModPython, [wiki:TracModWSGI], TracUpgrade, TracPermissions