Changes between Version 1 and Version 2 of TracRepositoryAdmin


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Timestamp:
May 16, 2013 7:34:23 AM (11 months ago)
Author:
trac
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  • TracRepositoryAdmin

    v1 v2  
    77 * Set up a call to `trac-admin $ENV changeset added $REPO $REV` in the post-commit hook of each repository. Additionally, add a call to `trac-admin $ENV changeset modified $REPO $REV` in the post-revprop-change hook of repositories allowing revision property changes. 
    88 * Set the `[trac] repository_sync_per_request` option to an empty value to disable per-request syncing. 
    9  
     9 * Make sure the user under which your Subversion hooks are run has write access to the Trac environment, or use a tool like `sudo` to temporarily elevate privileges. 
    1010 
    1111== Specifying repositories == #Repositories 
     
    2424||The `dir` attribute specifies the location of the repository in the filesystem. It corresponds to the value previously specified in the option `[trac] repository_dir`. The `alias` and `dir` attributes are mutually exclusive. || 
    2525||`hidden` ||When set to `true`, the repository is hidden from the repository index page in the source browser. Browsing the repository is still possible, and links referencing the repository remain valid. || 
    26 ||`name` ||The `name` attribute specifies the leading path element to the repository. || 
    2726||`type` ||The `type` attribute sets the type of version control system used by the repository. Trac supports Subversion out-of-the-box, and plugins add support for many other systems. If `type` is not specified, it defaults to the value of the `[trac] repository_type` option. || 
    2827||`url` ||The `url` attribute specifies the root URL to be used for checking out from the repository. When specified, a "Repository URL" link is added to the context navigation links in the source browser, that can be copied into the tool used for creating the working copy. || 
    2928 
    30 The `name` attribute and one of `alias` or `dir` are mandatory. All others are optional. 
     29A repository `name` and one of `alias` or `dir` attributes are mandatory. All others are optional. 
    3130 
    3231After adding a repository, the cache for that repository must be re-synchronized once with the `trac-admin $ENV repository resync` command. 
     
    4140The main advantage of specifying repositories in `trac.ini` is that they can be inherited from a global configuration (see the [wiki:TracIni#GlobalConfiguration global configuration] section of TracIni). One drawback is that, due to limitations in the `ConfigParser` class used to parse `trac.ini`, the repository name is always all-lowercase. 
    4241 
    43 The following example defines two Subversion repositories named `project` and `lib`, and a hidden alias to `project` as the default repository. This is a typical use case where a Trac environment previously had a single repository (the `project` repository), and was converted to multiple repositories. The alias ensures that links predating the change continue to resolve to the `project` repository. 
     42The following example defines two Subversion repositories named `project` and `lib`, and an alias to `project` as the default repository. This is a typical use case where a Trac environment previously had a single repository (the `project` repository), and was converted to multiple repositories. The alias ensures that links predating the change continue to resolve to the `project` repository. 
    4443{{{ 
    4544#!ini 
     
    4948project.type = svn 
    5049project.url = http://example.com/svn/project 
     50project.hidden = true 
     51 
    5152lib.dir = /var/repos/lib 
    5253lib.description = This is the secondary library code. 
    5354lib.type = svn 
    5455lib.url = http://example.com/svn/lib 
     56 
    5557.alias = project 
    56 .hidden = true 
    5758}}} 
    5859Note that `name.alias = target` makes `name` an alias for the `target` repo, not the other way around. 
     
    8586There is also new functionality in the form of a repository listener extension point ''(IRepositoryChangeListener)'' that is triggered by the post-commit hook when a changeset is added or modified, and can be used by plugins to perform actions on commit. 
    8687 
     88=== Mercurial Repositories === 
     89Please note that at the time of writing, no initial resynchronization or any hooks are necessary for Mercurial repositories - see [trac:#9485] for more information.  
     90 
    8791=== Explicit synchronization === #ExplicitSync 
    8892This is the preferred method of repository synchronization. It requires setting the `[trac]  repository_sync_per_request` option in [wiki:TracIni#trac-section trac.ini] to an empty value, and adding a call to `trac-admin` in the post-commit hook of each repository. Additionally, if a repository allows changing revision metadata, a call to `trac-admin` must be added to the post-revprop-change hook as well. 
     
    96100The `<repos>` argument can be either a repository name (use "`(default)`" for the default repository) or the path to the repository. 
    97101 
     102Note that you may have to set the environment variable PYTHON_EGG_CACHE to the same value as was used for the web server configuration before calling trac-admin, if you changed it from its default location. See [wiki:TracPlugins Trac Plugins] for more information. 
     103 
    98104The following examples are complete post-commit and post-revprop-change scripts for Subversion. They should be edited for the specific environment, marked executable (where applicable) and placed in the `hooks` directory of each repository. On Unix (`post-commit`): 
    99 {{{ 
    100 #!sh 
     105{{{#!sh 
    101106#!/bin/sh 
     107export PYTHON_EGG_CACHE="/path/to/dir" 
    102108/usr/bin/trac-admin /path/to/env changeset added "$1" "$2" 
    103109}}} 
     110Note: Ubuntu doesn't seem to like /usr/bin/trac-admin, so just use: 
     111{{{#!sh 
     112#!/bin/sh 
     113export PYTHON_EGG_CACHE="/path/to/dir" 
     114trac-admin /path/to/env/ changeset added "$1" "$2" 
     115}}} 
    104116On Windows (`post-commit.cmd`): 
    105 {{{ 
    106 #!application/x-dos-batch 
     117{{{#!application/x-dos-batch 
    107118@C:\Python26\Scripts\trac-admin.exe C:\path\to\env changeset added "%1" "%2" 
    108119}}} 
    109120 
    110121The post-revprop-change hook for Subversion is very similar. On Unix (`post-revprop-change`): 
    111 {{{ 
    112 #!sh 
     122{{{#!sh 
    113123#!/bin/sh 
     124export PYTHON_EGG_CACHE="/path/to/dir" 
    114125/usr/bin/trac-admin /path/to/env changeset modified "$1" "$2" 
    115126}}} 
    116127On Windows (`post-revprop-change.cmd`): 
    117 {{{ 
    118 #!application/x-dos-batch 
     128{{{#!application/x-dos-batch 
    119129@C:\Python26\Scripts\trac-admin.exe C:\path\to\env changeset modified "%1" "%2" 
    120130}}} 
    121131 
     132The Unix variants above assume that the user running the Subversion commit has write access to the Trac environment, which is the case in the standard configuration where both the repository and Trac are served by the web server. If you access the repository through another means, for example `svn+ssh://`, you may have to run `trac-admin` with different privileges, for example by using `sudo`. 
     133 
    122134Note that calling `trac-admin` in your Subversion hooks can slow down the commit and log editing operations on the client side. You might want to use the [trac:source:trunk/contrib/trac-svn-hook contrib/trac-svn-hook] script which starts `trac-admin` in an asynchronous way. The script also comes with a number of safety checks and usage advices which should make it easier to set up and test your hooks. There's no equivalent `trac-svn-hook.bat` for Windows yet, but the script can be run by Cygwin's bash. 
    123135 
    124 See the [http://svnbook.red-bean.com/en/1.5/svn.reposadmin.create.html#svn.reposadmin.create.hooks section about hooks] in the Subversion book for more information. Other repository types will require different hook setups. Please see the plugin documentation for specific instructions. 
     136See the [http://svnbook.red-bean.com/en/1.5/svn.reposadmin.create.html#svn.reposadmin.create.hooks section about hooks] in the Subversion book for more information. Other repository types will require different hook setups. 
     137 
     138Git hooks can be used in the same way for explicit syncing of git repositories. Add the following to `.git/hooks/post-commit`: 
     139{{{#!sh 
     140REV=$(git rev-parse HEAD) 
     141trac-admin /path/to/env changeset added <my-repository> $REV 
     142}}} 
     143 
     144For Mercurial, add the following entries to the `.hgrc` file of each repository accessed by Trac (if [trac:TracMercurial] is installed in a Trac `plugins` directory, download [trac:source:mercurial-plugin/tracext/hg/hooks.py hooks.py] and place it somewhere accessible): 
     145{{{#!ini 
     146[hooks] 
     147; If mercurial-plugin is installed globally 
     148commit = python:tracext.hg.hooks.add_changesets 
     149changegroup = python:tracext.hg.hooks.add_changesets 
     150 
     151; If mercurial-plugin is installed in a Trac plugins directory 
     152commit = python:/path/to/hooks.py:add_changesets 
     153changegroup = python:/path/to/hooks.py:add_changesets 
     154 
     155[trac] 
     156env = /path/to/env 
     157trac-admin = /path/to/trac-admin 
     158}}} 
    125159 
    126160=== Per-request synchronization === #PerRequestSync 
     
    130164 
    131165 
    132 == Migration from a single-repository setup == #Migration 
    133 The following procedure illustrates a typical migration from a single-repository setup to multiple repositories. 
     166== Migration from a single-repository setup (Subversion) == #Migration 
     167The following procedure illustrates a typical migration from a Subversion single-repository setup to multiple repositories. 
    134168 
    135169 1. Remove the default repository specification from the `[trac] repository_dir` option. 
    136  1. Add the "main" repository as a named repository. 
     170 1. Add the main repository as a named repository. 
    137171 1. Re-synchronize the main repository. 
    138  1. Set up post-commit and post-revprop-change hooks on the main repository, and set `[trac] repository_sync_per_request` to an empty value. 
    139  1. Add a hidden alias to the main repository as the default repository. This ensures that all links predating the migration still resolve to the main repository. 
    140  1. Repeat steps 2, 3 and 4 to add other (named) repositories as needed. 
     172 1. Set up post-commit and post-revprop-change hooks on the "main" repository, and set `[trac] repository_sync_per_request` to an empty value. 
     173 1. Add an alias to the main repository as the default repository (by leaving out the the `name`, e.g. `.alias = main`). This ensures that all links predating the migration still resolve to the main repository. 
     174 1. Repeat steps 2, 3 and 4 to add other "named" repositories as needed. 
     175 
     176== Migration from a single-repository setup (Mercurial) == #MigrationMercurial 
     177The following procedure illustrates a typical migration from a Mercurial single-repository setup to multiple repositories. Please note that at the time of writing, no initial resynchronization or any hooks are necessary for Mercurial repositories - see [trac:ticket:9485 #9485] for more information. 
     178 
     179 1. Upgrade to the latest version of the TracMercurial plugin. 
     180 1. Remove the default repository specification from the `[trac] repository_dir` option. 
     181 1. Add the main repository as a named repository. 
     182 1. Add an alias to the main repository as the default repository (by leaving out the the `name`, e.g. `.alias = main`). This ensures that all links predating the migration still resolve to the main repository. 
     183 1. Repeat step 3 to add other "named" repositories as needed. 
    141184 
    142185== Troubleshooting ==