Changes between Version 1 and Version 2 of TracInstall


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Timestamp:
04/22/11 16:33:41 (4 years ago)
Author:
trac
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  • TracInstall

    v1 v2  
    1 = Trac Installation Guide =  
     1= Trac Installation Guide for 0.12 =  
    22[[TracGuideToc]] 
    33 
    4 Trac is a lightweight project management tool that is implemented as a web-based application. Trac is written in the Python programming language and needs a database (either [http://sqlite.org/ SQLite], [http://www.postgresql.org/ PostgreSQL], or [http://mysql.com/ MySQL] works). For HTML rendering, Trac uses the [http://www.clearsilver.net/ ClearSilver] templating system. 
    5  
    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 [http://projects.edgewall.com/trac/wiki/TracInstallPlatforms 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 == Requirements == 
    9  
     4Trac 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. 
     5 
     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 
    1016To install Trac, the following software packages must be installed: 
    1117 
    12  * [http://www.python.org/ Python], version >= 2.3. 
    13    * For RPM-based systems you might also need the `python-devel` and `python-xml` packages. 
    14    * If you want to use Trac with Subversion on Windows, note that there are no precompiled Subversion bindings for Python 2.4, so you probably need Python 2.3. 
    15     * 2006-09-20: This seems to be no longer true, see http://subversion.tigris.org/servlets/ProjectDocumentList?folderID=91. For subversion 1.4.0 python 2.4 binary bindings are available. 
    16  * [http://www.clearsilver.net/ ClearSilver], version >= 0.9.3 
    17    * With python-bindings (`./configure --with-python=/usr/bin/python`) 
    18  * You also need a database system and the corresponding python drivers for it. 
    19    The database can be either SQLite, PostgreSQL or MySQL ''(experimental)''. 
    20  
    21 === For SQLite === 
    22  
    23  * [http://www.sqlite.org/ SQLite], version 2.8.x or 3.x (preferred) 
    24  * [http://pysqlite.org/ PySQLite], version 1.x (for SQLite 2.x) or version 2.x (for SQLite 3.x). For details see [http://trac.edgewall.org/wiki/PySqlite PySqlite] 
    25  
    26 ''Note: Versions of Trac prior to 0.9 do '''not''' work with PySQLite 2.x.'' 
    27  
    28 ''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.'' 
    29  
    30 ''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).'' 
    31  
    32 === For PostgreSQL === 
    33  
    34  * [http://www.postgresql.org/ PostgreSQL] 
    35  * [http://initd.org/projects/psycopg2 psycopg2] or [http://pypgsql.sourceforge.net/ pyPgSQL] 
    36  
    37 ''Note: PostgreSQL support requires Trac version 0.9 or later.'' 
    38  
    39 === For MySQL === 
    40  
    41 '''Warning''': MySQL support is currently experimental. That means it works for some people, but has not been tested extensively yet. 
    42  
    43  * [http://mysql.com/ MySQL], version 4.1 or later 
    44  * [http://sf.net/projects/mysql-python MySQLdb], version 1.2.1 or later 
    45  
    46 ''Note: MySQL support requires Trac version 0.10 or later.'' 
    47  
    48 === Optional Requirements === 
     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) 
     20 * [http://peak.telecommunity.com/DevCenter/setuptools setuptools], version >= 0.6 
     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: 
     57 * [http://www.postgresql.org/ PostgreSQL], version 8.0 or later 
     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 
    4973 
    5074==== Version Control System ==== 
    51  * [http://subversion.tigris.org/ Subversion], version >= 1.0. (either 1.2.3 or >= 1.3.1 recommended) and corresponding [http://svnbook.red-bean.com/svnbook-1.1/ch08s02.html#svn-ch-8-sect-2.3 Python bindings]. For troubleshooting, check [http://projects.edgewall.com/trac/wiki/TracSubversion TracSubversion] 
    52    * Trac uses the [http://www.swig.org/ SWIG] bindings included in the Subversion distribution, '''not''' [http://pysvn.tigris.org/ PySVN] (which is sometimes confused with the standard SWIG bindings). 
    53    * If Subversion was already installed without the SWIG bindings, you'll need to re-`configure` Subversion and `make swig-py`, `make install-swig-py`. 
    54  * Support for other version control systems is provided via third-parties. See [http://projects.edgewall.com/trac/wiki/PluginList PluginList] and [http://projects.edgewall.com/trac/wiki/VersioningSystemBackend VersioningSystemBackend]. 
     75 
     76===== Subversion ===== 
     77 * [http://subversion.apache.org/ Subversion], 1.5.x or 1.6.x and the '''''corresponding''''' Python bindings. Older versions starting from 1.4.0, etc. should still work. For troubleshooting information, check the [trac:TracSubversion#Troubleshooting TracSubversion] page. Versions prior to 1.4.0 won't probably work since trac uses svn core functionality (e.g. svn_path_canonicalize) that is not implemented in the python swig wrapper in svn <= 1.3.x (although it exists in the svn lib itself). 
     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]. 
    5590 
    5691==== Web Server ==== 
    57  * A CGI-capable web server (see TracCgi), or 
    58  * a [http://www.fastcgi.com/ FastCGI]-capable web server (see TracFastCgi), or 
    59  * [http://httpd.apache.org/ Apache] with [http://www.modpython.org/ mod_python 3.1.3+] (see TracModPython) 
    60     * When installing mod_python the development versions of Python and Apache are required (actually the libraries and header files) 
    61  
    62 For those stuck with Apache 1.3, it is also possible to get Trac 0.8.4 working with [http://www.modpython.org/ mod_python 2.7] (see [wiki:TracModPython2.7 TracModPython2.7]). This hasn't been tested with Trac 0.9, so it may or may not work. 
    63  
    64 ==== Other Python Utilities ==== 
    65  * [http://peak.telecommunity.com/DevCenter/setuptools setuptools], version >= 0.6 for using plugins (see TracPlugins) 
    66  * [http://docutils.sourceforge.net/ docutils], version >= 0.3.9 for WikiRestructuredText. 
    67  * [http://silvercity.sourceforge.net/ SilverCity] and/or [http://www.gnu.org/software/enscript/enscript.html Enscript] for [wiki:TracSyntaxColoring syntax highlighting]. 
    68     * 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. 
    69  
    70 '''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 [http://projects.edgewall.com/trac/wiki/MailingList MailingList] or [http://projects.edgewall.com/trac/wiki/IrcChannel IrcChannel]. 
    71  
    72 Please refer to the documentation of these packages to find out how they are best installed. In addition, most of the [http://projects.edgewall.com/trac/wiki/TracInstallPlatforms platform-specific instructions] also describe the installation of the dependencies. Keep in mind however that the information there might concern older versions of Trac than the one you're installing (in particular,  
    73 there are still some pages that are 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 
    74126 
    75127== Installing Trac == 
    76  
    77 Like most Python programs, the Trac Python package is installed by running the following command at the top of the source directory: 
     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 - first install of the latest stable version Trac 0.12.1, with i18n support: 
     135   {{{ 
     136   easy_install Babel==0.9.5 Genshi==0.6 
     137   easy_install Trac 
     138   }}} 
     139   ''It's very important to run the two `easy_install` commands separately, otherwise the message catalogs won't be generated.'' 
     140 
     141 - upgrade to the latest stable version of Trac: 
     142   {{{ 
     143   easy_install -U Trac 
     144   }}} 
     145 
     146 - upgrade to the latest trunk development version (0.13dev): 
     147   {{{ 
     148   easy_install -U Trac==dev 
     149   }}} 
     150 
     151For upgrades, reading the TracUpgrade page is mandatory, of course. 
     152 
     153=== From source 
     154If you want more control, you can download the source in archive form, or do a checkout from one of the official [[Trac:TracRepositories|source code repositories]]. 
     155 
     156Be sure to have the prerequisites already installed. You can also obtain the Genshi and Babel source packages from http://www.edgewall.org and follow for them a similar installation procedure, or you can just easy_install those, see [#Usingeasy_install above]. 
     157 
     158Once you've unpacked the Trac archive or performed the checkout, move in the top-level folder and do: 
    78159{{{ 
    79160$ python ./setup.py install 
    80161}}} 
    81162 
    82 ''Note: you'll need root permissions or equivalent for this step.'' 
    83  
    84 This will byte-compile the python source code and install it in the `site-packages` directory 
    85 of your Python installation. The directories `cgi-bin`, `templates`, `htdocs`, `wiki-default` and `wiki-macros` are all copied to `$prefix/share/trac/`. `conf` and `plugins` stub directories are also created under `$prefix/share/trac/` (''since [milestone:0.10]''). 
     163''You'll need root permissions or equivalent for this step.'' 
     164 
     165This will byte-compile the python source code and install it as an .egg file or folder in the `site-packages` directory 
     166of your Python installation. The .egg will also contain all other resources needed by standard Trac, such as htdocs and templates. 
    86167 
    87168The 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. 
    88169 
     170If 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): 
     171{{{ 
     172$ python ./setup.py install 
     173}}} 
     174Alternatively, 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`). 
     175 
    89176=== Advanced Options === 
    90177 
    91178To install Trac to a custom location, or find out about other advanced installation options, run: 
    92179{{{ 
    93 $ python ./setup.py install --help 
     180easy_install --help 
    94181}}} 
    95182 
     
    98185Specifically, you might be interested in: 
    99186{{{ 
    100 $ python ./setup.py install --prefix=/path/to/installdir 
    101 }}} 
     187easy_install --prefix=/path/to/installdir 
     188}}} 
     189or, if installing Trac to a Mac OS X system: 
     190{{{ 
     191easy_install --prefix=/usr/local --install-dir=/Library/Python/2.5/site-packages 
     192}}} 
     193Note: 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 
     194 
     195The 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. 
     196 
     197=== Using `pip` 
     198'pip' is an easy_install replacement that is very useful to quickly install python packages. 
     199To get a trac installation up and running in less than 5 minutes: 
     200 
     201Assuming you want to have your entire pip installation in /opt/user/trac: 
     202 
     203 -  
     204{{{ 
     205pip -E /opt/user/trac install trac psycopg2  
     206}}} 
     207or 
     208 -  
     209{{{ 
     210pip -E /opt/user/trac install trac mysql-python  
     211}}} 
     212 
     213Make sure your OS specific headers are available for pip to automatically build PostgreSQL (libpq-dev) or MySQL (libmysqlclient-dev) bindings. 
     214 
     215pip 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 . 
     216 
     217All 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) 
     218 
     219Additionally, you can install several trac plugins (listed [http://pypi.python.org/pypi?:action=search&term=trac&submit=search here]) through pip. 
     220 
     221 
    102222 
    103223== Creating a Project Environment == 
    104224 
    105 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. 
     225A [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. 
    106226 
    107227A new environment is created using [wiki:TracAdmin trac-admin]: 
     
    110230}}} 
    111231 
    112 [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. 
    113  
    114 Also note that the values you specify here can be changed later by directly editing the [wiki:TracIni] configuration file. 
    115  
    116 ''Note: The user account under which the web server runs will require write permissions to the environment 
    117 directory and all the files inside.'' 
     232[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.  
     233 
     234Using the default database connection string in particular will always work as long as you have SQLite installed. 
     235For the other [DatabaseBackend database backends] you should plan ahead and already have a database ready to use at this point. 
     236 
     237Since 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. 
     238 
     239Also note that the values you specify here can be changed later by directly editing the [TracIni conf/trac.ini] configuration file. 
     240 
     241Finally, 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: 
     242{{{ 
     243# chown -R apache.apache /path/to/myproject 
     244}}} 
     245 
     246{{{#!div class=important 
     247'''Warning:''' Please only use ASCII-characters for account name and project path, unicode characters are not supported there. 
     248}}} 
    118249 
    119250 
     
    125256}}} 
    126257 
    127 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. 
    128  
     258Then, 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: 
     259{{{ 
     260$ tracd -s --port 8000 /path/to/myproject 
     261}}} 
    129262 
    130263== Running Trac on a Web Server == 
    131264 
    132 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. 
     265Trac 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. 
     266 
     267Trac also supports [trac:TracOnWindowsIisAjp AJP] which may be your choice if you want to connect to IIS. 
     268 
     269==== Generating the Trac cgi-bin directory ==== 
     270 
     271In 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]. 
     272 
     273There 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: 
     274{{{ 
     275mkdir -p /usr/share/trac/projects/my-project 
     276trac-admin /usr/share/trac/projects/my-project initenv 
     277trac-admin /usr/share/trac/projects/my-project deploy /tmp/deploy 
     278mv /tmp/deploy/* /usr/share/trac 
     279}}} 
     280 
     281==== Setting up the Plugin Cache ==== 
     282 
     283Some 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. 
    133284 
    134285== Configuring Authentication == 
     
    137288 
    138289 * TracStandalone if you use the standalone server, `tracd`. 
    139  * TracCgi if you use the CGI or FastCGI methods. 
    140  * TracModPython if you use the mod_python method. 
     290 * TracCgi if you use the CGI or FastCGI web front ends. 
     291 * [wiki:TracModWSGI] if you use the Apache mod_wsgi web front end. 
     292 * TracModPython if you use the Apache mod_python web front end. 
     293 
     294 
     295== Automatic reference to the SVN changesets in Trac tickets == 
     296 
     297You 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: 
     298 * '''`Refs #123`''' - to reference this changeset in `#123` ticket 
     299 * '''`Fixes #123`''' - to reference this changeset and close `#123` ticket with the default status ''fixed'' 
     300 
     301This 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. 
     302{{{ 
     303tracopt.ticket.commit_updater.* = enabled 
     304}}} 
     305For more information, see the documentation of the `CommitTicketUpdater` component in the "Plugins" admin panel. 
    141306 
    142307== Using Trac == 
    143308 
    144 Once you have your Trac site up and running, you should be able to browse your subversion repository, create tickets, view the timeline, etc. 
     309Once 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. 
    145310 
    146311Keep 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. 
     
    148313'' Enjoy! '' 
    149314 
    150 [http://projects.edgewall.com/trac/wiki/TracTeam The Trac Team] 
     315[trac:TracTeam The Trac Team] 
    151316 
    152317---- 
    153 See also:  TracGuide, TracCgi, TracFastCgi, TracModPython, TracUpgrade, TracPermissions 
     318See also: [trac:TracInstallPlatforms TracInstallPlatforms], TracGuide, TracCgi, TracFastCgi, TracModPython, [wiki:TracModWSGI], TracUpgrade, TracPermissions 
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