Changes between Version 1 and Version 2 of TracEnvironment


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Timestamp:
08/23/10 11:39:44 (4 years ago)
Author:
trac
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  • TracEnvironment

    v1 v2  
    55== Creating an Environment == 
    66 
    7 A new Trac environment is created using [wiki:TracAdmin trac-admin]: 
     7A new Trac environment is created using  [TracAdmin#initenv trac-admin's initenv]: 
    88{{{ 
    9 $ trac-admin /path/to/projectenv initenv 
     9$ trac-admin /path/to/myproject initenv 
    1010}}} 
    1111 
    12 [wiki:TracAdmin trac-admin] will ask you for the name of the project, the 
    13 database connection string (explained below), and the type and path to 
    14 your source code repository. 
     12`trac-admin` will ask you for the name of the project and the 
     13database connection string (explained below). 
    1514 
    16 ''Note: The web server user will require file system write permission to  
    17 the environment directory and all the files inside. Please remember to set 
    18 the appropriate permissions. The same applies to the Subversion repository  
    19 Trac is eventually using, although Trac will only require read access as long  
    20 as you're not using the BDB file system.'' 
     15=== Some Useful Tips 
     16 - The user under which the web server runs will require file system write permission to  
     17 the environment directory and all the files inside. Please remember to set 
     18 the appropriate permissions. The same applies to the source code repository,  
     19 although the user under which Trac runs will only require write access to a Subversion repository created with the BDB file system; for other repository types, check the corresponding plugin's documentation.  
     20  
     21 - `initenv` when using svn repository does not imply that trac-admin will perform `svnadmin create` for the specified repository path. You need to perform the `svnadmin create` prior to `trac-admin initenv` if you're creating a new svn repository altogether with a new trac environment, otherwise you will see a message "Warning: couldn't index the repository" when initializing the environment. 
     22 
     23 - Non-ascii environment paths are not supported 
     24  
     25 - Also, it seems that project names with spaces can be problematic for authentication (see [trac:#7163]). 
     26 
     27 - TracPlugins located in a [TracIni#inherit-section shared plugins folder] that is defined in an [TracIni#GlobalConfiguration inherited configuration] are currently not loaded during creation, and hence, if they need to create extra tables for example, you'll need to [TracUpgrade#UpgradetheTracEnvironment upgrade the environment] before being able to use it. 
    2128 
    2229== Database Connection Strings == 
    2330 
    24 Since version 0.9, Trac supports both [http://sqlite.org/ SQLite], 
    25 [http://www.postgresql.org/ PostgreSQL] and [http://mysql.com/ MySQL] as 
    26 database backends.  The default is to use SQLite, which is probably sufficient 
    27 for most projects. The database file is then stored in the environment 
    28 directory, and can easily be [wiki:TracBackup backed up] together with the 
    29 rest of the environment. 
     31Since version 0.9, Trac supports both [http://sqlite.org/ SQLite] and 
     32[http://www.postgresql.org/ PostgreSQL] database backends.  Preliminary 
     33support for [http://mysql.com/ MySQL] was added in 0.10.  The default is 
     34to use SQLite, which is probably sufficient for most projects. The database 
     35file is then stored in the environment directory, and can easily be  
     36[wiki:TracBackup backed up] together with the rest of the environment. 
    3037 
    31 The connection string for an embedded SQLite database is: 
     38=== SQLite Connection String === 
     39The connection string for an SQLite database is: 
    3240{{{ 
    3341sqlite:db/trac.db 
    3442}}} 
     43where `db/trac.db` is the path to the database file within the Trac environment. 
    3544 
     45=== PostgreSQL Connection String === 
    3646If you want to use PostgreSQL or MySQL instead, you'll have to use a 
    3747different connection string. For example, to connect to a PostgreSQL 
     
    4151postgres://johndoe:letmein@localhost/trac 
    4252}}} 
     53''Note that due to the way the above string is parsed, the "/" and "@" characters cannot be part of the password.'' 
    4354 
    4455If PostgreSQL is running on a non-standard port (for example 9342), use: 
     
    4758}}} 
    4859 
     60On UNIX, you might want to select a UNIX socket for the transport, 
     61either the default socket as defined by the PGHOST environment variable: 
     62{{{ 
     63postgres://user:password@/database 
     64}}} 
     65or a specific one: 
     66{{{ 
     67postgres://user:password@/database?host=/path/to/socket/dir 
     68}}} 
     69 
    4970Note that with PostgreSQL you will have to create the database before running 
    5071`trac-admin initenv`. 
    5172 
    52 And make sure PostgreSQl DB name is "trac". What worked for me: 
    53 And didn't work uppercase trac-user-name 
     73See the [http://www.postgresql.org/docs/ PostgreSQL documentation] for detailed instructions on how to administer [http://postgresql.org PostgreSQL]. 
     74Generally, the following is sufficient to create a database user named `tracuser`, and a database named `trac`. 
    5475{{{ 
    55 sudo su - postgres -c createdb trac 
    56 sudo su - postgres -c psql trac 
    57 CREATE USER trac-user-name WITH PASSWORD 'trac-pass-name'; 
     76createuser -U postgres -E -P tracuser 
     77createdb -U postgres -O tracuser -E UTF8 trac 
     78}}} 
     79When running `createuser` you will be prompted for the password for the user 'tracuser'. This new user will not be a superuser, will not be allowed to create other databases and will not be allowed to create other roles. These privileges are not needed to run a trac instance. If no password is desired for the user, simply remove the `-P` and `-E` options from the `createuser` command.  Also note that the database should be created as UTF8. LATIN1 encoding causes errors trac's use of unicode in trac.  SQL_ASCII also seems to work. 
     80 
     81Under some default configurations (debian) one will have run the `createuser` and `createdb` scripts as the `postgres` user.  For example: 
     82{{{ 
     83sudo su - postgres -c 'createuser -U postgres -S -D -R -E -P tracuser' 
     84sudo su - postgres -c 'createdb -U postgres -O tracuser -E UTF8 trac' 
    5885}}} 
    5986 
    60 (Just to remind you, if you don't have a sudo/su setup, you just need to do the createdb and psql statements. That threw me the first couple of times I read this.) 
     87Trac uses the `public` schema by default but you can specify a different schema in the connection string: 
     88{{{ 
     89postgres://user:pass@server/database?schema=yourschemaname 
     90}}} 
     91 
     92=== MySQL Connection String === 
     93 
     94If you want to use MySQL instead, you'll have to use a 
     95different connection string. For example, to connect to a MySQL 
     96database on the same machine called `trac`, that allows access to the 
     97user `johndoe` with the password `letmein`, the mysql connection string is: 
     98{{{ 
     99mysql://johndoe:letmein@localhost:3306/trac 
     100}}} 
    61101 
    62102== Source Code Repository == 
    63103 
    64 You'll first have to provide the ''type'' of your repository (e.g. `svn` for Subversion, 
    65 which is the default), then the ''path'' where the repository is located. 
     104Since version 0.12, a single Trac environment can be connected to more than one repository. There are many different ways to connect repositories to an environment, see TracRepositoryAdmin. This page also details the various attributes that can be set for a repository (like `type`, `url`, `description`). 
    66105 
    67 If you don't want to use Trac with a source code repository, simply leave the ''path'' empty 
    68 (the ''type'' information doesn't matter, then). 
     106In Trac 0.12 `trac-admin` no longer asks questions related to repositories. Therefore, by default Trac is not connected to any source code repository, and the ''Browse Source'' toolbar item will not be displayed. 
     107You can also explicitly disable the `trac.versioncontrol.*` components (which are otherwise still loaded) 
     108{{{ 
     109[components] 
     110trac.versioncontrol.* = disabled 
     111}}} 
    69112 
    70 For some systems, it is possible to specify not only the path to the repository, 
     113For some version control systems, it is possible to specify not only the path to the repository, 
    71114but also a ''scope'' within the repository. Trac will then only show information 
    72115related to the files and changesets below that scope. The Subversion backend for 
    73116Trac supports this; for other types, check the corresponding plugin's documentation. 
    74117 
    75 Example of a configuration for a Subversion repository: 
     118Example of a configuration for a Subversion repository used as the default repository: 
    76119{{{ 
    77120[trac] 
     
    98141 * `db` 
    99142   * `trac.db` - The SQLite database (if you're using SQLite). 
    100  * `plugins` - Environment-specific [wiki:TracPlugins plugins] (Python eggs) 
    101  * `templates` - Custom environment-specific templates. 
    102    * `site_css.cs` - Custom CSS rules. 
    103    * `site_footer.cs` - Custom page footer. 
    104    * `site_header.cs` - Custom page header. 
    105  * `wiki-macros` - Environment-specific [wiki:WikiMacros Wiki macros]. 
     143 * `htdocs` - directory containing web resources, which can be referenced in Genshi templates. '''''(since 0.11)''''' 
     144 * `log` - default directory for log files, if logging is turned on and a relative path is given. 
     145 * `plugins` - Environment-specific [wiki:TracPlugins plugins] (Python eggs or single file plugins, since [trac:milestone:0.10 0.10]) 
     146 * `templates` - Custom Genshi environment-specific templates. '''''(since 0.11)''''' 
     147   * `site.html` - method to customize header, footer, and style, described in TracInterfaceCustomization#SiteAppearance 
    106148 
    107   '''Note: don't confuse a Trac environment directory with the source code repository directory. 
    108 It happens that the above structure is loosely modelled after the Subversion repository directory  
    109 structure, but they are not and ''must not'' be located at the same place.''' 
     149'''Caveat:''' ''don't confuse a Trac environment directory with the source code repository directory.''  
     150 
     151This is a common beginners' mistake. 
     152It happens that the structure for a Trac environment is loosely modelled after the Subversion repository directory  
     153structure, but those are two disjoint entities and they are not and ''must not'' be located at the same place. 
    110154 
    111155---- 
    112156See also: TracAdmin, TracBackup, TracIni, TracGuide 
     157