Changes between Version 3 and Version 4 of TracEnvironment


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Timestamp:
Apr 1, 2017, 10:40:26 PM (3 years ago)
Author:
trac
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  • TracEnvironment

    v3 v4  
    66Trac uses a directory structure and a database for storing project data. The directory is referred to as the '''environment'''.
    77
     8Trac supports [http://sqlite.org/ SQLite], [http://www.postgresql.org/ PostgreSQL] and [http://mysql.com/ MySQL] databases. With PostgreSQL and MySQL you have to create the database before running `trac-admin initenv`.
     9
    810== Creating an Environment
    911
    10 A new Trac environment is created using [TracAdmin#initenv trac-admin's initenv]:
     12A new Trac environment is created using the [TracAdmin#initenv initenv] command:
    1113{{{#!sh
    1214$ trac-admin /path/to/myproject initenv
    1315}}}
    1416
    15 `trac-admin` will ask you for the name of the project and the database connection string, see below.
     17`trac-admin` will ask you for the name of the project and the [#DatabaseConnectionStrings database connection string].
    1618
    1719=== Useful Tips
     
    2527 - Non-ascii environment paths are not supported.
    2628
    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].
     29 - TracPlugins located in a [TracIni#inherit-plugins_dir-option shared plugins folder] that is defined in an [TracIni#GlobalConfiguration inherited configuration] are not loaded during creation, and hence, if they need to create extra tables for example, you'll need to [TracUpgrade#UpgradetheTracEnvironment upgrade the environment]. Alternatively you can avoid the need to upgrade the environment by specifying a configuration file at the time the environment is created, using the `--config` option. See TracAdmin#FullCommandReference for more information.
    2830
    29 {{{#!div style="border: 1pt dotted; margin: 1em"
     31{{{#!div style="border: 1pt dotted; margin: 1em;"
    3032**Caveat:** don't confuse the //Trac environment directory// with the //source code repository directory//.
    3133
    3234This is a common beginners' mistake.
    33 It happens that the structure for a Trac environment is loosely modelled after the Subversion repository directory structure, but those are two disjoint entities and they are not and ''must not'' be located at the same place.
     35It happens that the structure for a Trac environment is loosely modeled after the Subversion repository directory structure, but those are two disjoint entities and they are not and //must not// be located at the same place.
    3436}}}
    3537
    3638== Database Connection Strings
    3739
    38 Trac supports [http://sqlite.org/ SQLite], [http://www.postgresql.org/ PostgreSQL] and [http://mysql.com/ MySQL] database backends. The default is SQLite, which is probably sufficient for most projects. The database file is then stored in the environment directory, and can easily be [wiki:TracBackup backed up] together with the rest of the environment.
     40You will need to specify a database connection string at the time the environment is created. The default is SQLite, which is sufficient for most projects. The SQLite database file is stored in the environment directory, and can easily be [wiki:TracBackup backed up] together with the rest of the environment.
    3941
    4042Note that if the username or password of the connection string (if applicable) contains the `:`, `/` or `@` characters, they need to be URL encoded.
     
    5052=== PostgreSQL Connection String
    5153
    52 If you want to use PostgreSQL instead, you'll have to use a different connection string. For example, to connect to a PostgreSQL database on the same machine called `trac` for user `johndoe` with the password `letmein` use:
     54The connection string for PostgreSQL is a bit more complex. For example, to connect to a PostgreSQL database named `trac` on `localhost` for user `johndoe` and password `letmein`, use:
    5355{{{
    5456postgres://johndoe:letmein@localhost/trac
     
    7072}}}
    7173
    72 Note that with PostgreSQL you will have to create the database before running `trac-admin initenv`.
    73 
    7474See the [http://www.postgresql.org/docs/ PostgreSQL documentation] for detailed instructions on how to administer [http://postgresql.org PostgreSQL].
    7575Generally, the following is sufficient to create a database user named `tracuser` and a database named `trac`:
     
    7979}}}
    8080
    81 When 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, because of Trac's use of unicode. SQL_ASCII also seems to work.
     81When running `createuser` you will be prompted for the password for the `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, because of Trac's use of unicode.
    8282
    8383Under some default configurations (Debian), run the `createuser` and `createdb` scripts as the `postgres` user:
     
    9494=== MySQL Connection String
    9595
    96 The format of the MySQL connection string is similar to those for PostgreSQL, with the `postgres` scheme being replaced by `mysql`. For example, to connect to a MySQL database on the same machine called `trac` for user `johndoe` with password `letmein`:
     96The format of the MySQL connection string is similar to PostgreSQL, with the `postgres` scheme being replaced by `mysql`. For example, to connect to a MySQL database on `localhost` named `trac` for user `johndoe` with password `letmein`:
    9797{{{
    9898mysql://johndoe:letmein@localhost:3306/trac
     
    101101== Source Code Repository
    102102
    103 Since Trac 0.12, a single 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, such as `type`, `url`, `description`.
     103A single environment can be connected to more than one repository. However, by default Trac is not connected to any source code repository, and the ''Browse Source'' navigation item will not be displayed.
    104104
    105 In 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.
    106 You can also explicitly disable the `trac.versioncontrol.*` components, which are otherwise still loaded:
    107 {{{#!ini
    108 [components]
    109 trac.versioncontrol.* = disabled
    110 }}}
    111 
    112 For some version control systems, it is possible to specify not only the path to the repository, but also a ''scope'' within the repository. Trac will then only show information related to the files and changesets below that scope. The Subversion backend for Trac supports this. For other types, check the corresponding plugin's documentation.
    113 
    114 Example of a configuration for a Subversion repository used as the default repository:
    115 {{{#!ini
    116 [trac]
    117 repository_type = svn
    118 repository_dir = /path/to/your/repository
    119 }}}
    120 
    121 The configuration for a scoped Subversion repository would be:
    122 {{{#!ini
    123 [trac]
    124 repository_type = svn
    125 repository_dir = /path/to/your/repository/scope/within/repos
    126 }}}
     105There are several ways to connect repositories to an environment, see TracRepositoryAdmin. A single repository can be specified when the environment is created by passing the optional arguments `repository_type` and `repository_dir` to the `initenv` command.
    127106
    128107== Directory Structure
    129108
    130 An environment directory will usually consist of the following files and directories:
     109An environment consists of the following files and directories:
    131110
    132111 * `README` - Brief description of the environment.
     
    135114  * `attachments` - Attachments to wiki pages and tickets.
    136115 * `conf`
    137   * `trac.ini` - Main configuration file. See TracIni.
     116  * `trac.ini` - Main [TracIni configuration file].
    138117 * `db`
    139118  * `trac.db` - The SQLite database, if you are using SQLite.
    140  * `htdocs` - Directory containing web resources, which can be referenced in Genshi templates using `/chrome/site/...` URLs.
    141  * `log` - Default directory for log files, if `file` logging is enabled and a relative path is given.
     119 * `htdocs` - Directory containing web resources, which can be referenced in templates using the path `/chrome/site/...`.
     120 * `log` - Default directory for log files when `file` logging is enabled and a relative path is given.
    142121 * `plugins` - Environment-specific [wiki:TracPlugins plugins].
    143122 * `templates` - Custom Genshi environment-specific templates.
    144   * `site.html` - Method to customize header, footer, and style, described in TracInterfaceCustomization#SiteAppearance.
     123  * `site.html` - Method to [TracInterfaceCustomization#SiteAppearance customize] the site header, footer, and style.
    145124
    146125----
    147 See also: TracAdmin, TracBackup, TracIni, TracGuide
     126See also: TracAdmin, TracBackup, TracIni