Changes between Version 3 and Version 4 of TracRepositoryAdmin
- Timestamp:
- Nov 23, 2019, 8:07:28 PM (4 years ago)
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TracRepositoryAdmin
v3 v4 1 = Repository Administration =1 = Repository Administration 2 2 [[PageOutline(2-3)]] 3 3 4 == Quick start == #QuickStart 5 6 * Manage repositories in the "Repository" admin panel, with `trac-admin` or in the `[repositories]` section of [wiki:TracIni#repositories-section trac.ini]. 4 == Quick start #QuickStart 5 6 * Enable the repository connector(s) for the version control system(s) that you will use. 7 * Add repositories through the //Repositories// admin panel, with `trac-admin` or in the `[repositories]` section of [wiki:TracIni#repositories-section trac.ini]. 7 8 * 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. 8 * Set the `[trac] repository_sync_per_request` option to an empty value to disable per-request syncing. 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. 10 11 == Specifying repositories == #Repositories 12 Starting with 0.12, Trac can handle more than one repository per environment. The pre-0.12 way of specifying the repository with the `repository_dir` and `repository_type` options in the `[trac]` section of [wiki:TracIni trac.ini] is still supported, but two new mechanisms allow including additional repositories into an environment. 13 14 It is also possible to define aliases of repositories, that act as "pointers" to real repositories. This can be useful when renaming a repository, to avoid breaking all the links to the old name. 15 16 A number of attributes can be associated with each repository, which define the repository's location, type, name and how it is displayed in the source browser. The following attributes are supported: 9 * Make sure the user under which your hooks are run has write access to the Trac environment, or use a tool like `sudo` to temporarily elevate privileges. 10 11 == Enabling the components 12 13 Support for version control systems is provided by optional components distributed with Trac, which are disabled by default //(since 1.0)//. Subversion and Git must be explicitly enabled if you wish to use them. 14 15 The version control systems can be enabled by adding the following to the `[components]` section of your [TracIni#components-section trac.ini], or enabling the components in the //Plugins// admin panel. 16 17 {{{#!ini 18 tracopt.versioncontrol.svn.* = enabled 19 }}} 20 21 {{{#!ini 22 tracopt.versioncontrol.git.* = enabled 23 }}} 24 25 == Specifying repositories #Repositories 26 Trac supports multiple repositories per environment, and the repositories may be for different version control system types. Each repository must be defined in a repository configuration provider, the two supported by default are the [#ReposDatabase database store] and the [#ReposTracIni trac.ini configuration file]. A repository should not be defined in multiple configuration providers. 27 28 It is possible to define aliases of repositories, that act as "pointers" to real repositories. This can be useful when renaming a repository, to avoid breaking links to the old name. 29 30 A number of attributes can be associated with each repository. The attributes define the repository's location, type, name and how it is displayed in the source browser. The following attributes are supported: 17 31 18 32 ||='''Attribute''' =||='''Description''' =|| … … 24 38 ||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. || 25 39 ||`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 ||`type` ||The `type` attribute sets the type of version control system used by the repository. Trac supports Subversion and Git 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. || 40 ||`sync_per_request`||When set to `true` the repository will be synced on every request. This is not recommended, instead a post-commit hook should be configured to provide [#ExplicitSync explicit synchronization] and `sync_per_request` should be set to `false`.|| 41 ||`type` ||The `type` attribute sets the type of version control system used by the repository. Trac supports Subversion and Git out-of-the-box, and plugins add support for many other systems. If `type` is not specified, it defaults to the value of the `[versioncontrol] default_repository_type` option. || 27 42 ||`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. || 28 43 29 44 A repository `name` and one of `alias` or `dir` attributes are mandatory. All others are optional. 45 46 For some version control systems, it is possible to specify not only the path to the repository in the `dir` attribute, 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. 30 47 31 48 After adding a repository, the cache for that repository must be re-synchronized once with the `trac-admin $ENV repository resync` command. … … 35 52 36 53 37 === In `trac.ini` ===#ReposTracIni54 === In `trac.ini` #ReposTracIni 38 55 Repositories and repository attributes can be specified in the `[repositories]` section of [wiki:TracIni#repositories-section trac.ini]. Every attribute consists of a key structured as `{name}.{attribute}` and the corresponding value separated with an equal sign (`=`). The name of the default repository is empty. 39 56 … … 41 58 42 59 The 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. 43 {{{ 44 #!ini 60 {{{#!ini 45 61 [repositories] 46 62 project.dir = /var/repos/project … … 59 75 Note that `name.alias = target` makes `name` an alias for the `target` repo, not the other way around. 60 76 61 === In the database ===#ReposDatabase77 === In the database #ReposDatabase 62 78 Repositories can also be specified in the database, using either the "Repositories" admin panel under "Version Control", or the `trac-admin $ENV repository` commands. 63 79 … … 80 96 Note that the default repository has an empty name, so it will likely need to be quoted when running `trac-admin` from a shell. Alternatively, the name "`(default)`" can be used instead, for example when running `trac-admin` in interactive mode. 81 97 82 83 == Repository synchronization == #Synchronization 98 == Repository caching 99 100 The Subversion and Git repository connectors support caching, which improves the performance browsing the repository, viewing logs and viewing changesets. Cached repositories must be [#Synchronization synchronized]; either explicit or implicit synchronization can be used. When searching changesets, only cached repositories are searched. 101 102 Subversion repositories are cached unless the type is `direct-svnfs`. Git repositories are cached when `[git]` [wiki:TracIni#git-section cached_repository] is `true`. 103 104 == Repository synchronization #Synchronization 84 105 Prior to 0.12, Trac synchronized its cache with the repository on every HTTP request. This approach is not very efficient and not practical anymore with multiple repositories. For this reason, explicit synchronization through post-commit hooks was added. 85 106 86 107 There 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. 87 108 88 === Mercurial Repositories ===109 === Mercurial Repositories 89 110 Please note that at the time of writing, no initial resynchronization or any hooks are necessary for Mercurial repositories - see [trac:#9485] for more information. 90 111 91 === Explicit synchronization ===#ExplicitSync92 This 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.112 === Explicit synchronization #ExplicitSync 113 This is the preferred method of repository synchronization. It requires setting the `sync_per_request` attribute to `false`, 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. 93 114 94 115 `changeset added <repos> <rev> [...]`:: … … 102 123 Note 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. 103 124 104 ==== Subversion ==== 125 ==== Subversion 126 127 ===== Using `trac-svn-hook` 128 129 In a Unix environment, the simplest way to configure explicit synchronization is by using the [trac:source:branches/1.2-stable/contrib/trac-svn-hook contrib/trac-svn-hook] script. `trac-svn-hook` starts `trac-admin` asynchronously to avoid slowing the commit and log editing operations. The script comes with a number of safety checks and usage advice. Output is written to a log file with prefix `svn-hooks-` in the environment `log` directory, which can make configuration issues easier to debug. 130 131 There's no equivalent `trac-svn-hook.bat` for Windows yet, but the script can be run by Cygwin's bash. 132 133 Follow the help in the documentation header of the script to configure `trac-svn-hook`. Configuring the hook environment variables is made easier in Subversion 1.8 by using the [http://svnbook.red-bean.com/en/1.8/svn.reposadmin.create.html#svn.reposadmin.hooks.configuration hook script environment] configuration. Rather than directly editing `trac-svn-hook` to set the environment variables, they can be configured through the repository `conf/hooks-env` file. Replace the [trac:source:branches/1.2-stable/contrib/trac-svn-hook@:65-67#L61 configuration section] with: 134 {{{#!sh 135 export PATH=$PYTHON_BIN:$PATH 136 export LD_LIBRARY_PATH=$PYTHON_LIB:$LD_LIBRARY_PATH 137 }}} 138 and set the variables `TRAC_ENV`, `PYTHON_BIN` and `PYTHON_LIB` in the `hooks-env` file. Here is an example, using a Python virtual environment at `/usr/local/venv`: 139 {{{#!ini 140 [default] 141 TRAC_ENV=/var/trac/project-1 142 PYTHON_BIN=/usr/local/venv/bin 143 PYTHON_LIB=/usr/local/venv/lib 144 }}} 145 146 ===== Writing Your Own Hook Script 105 147 106 148 The 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`): … … 129 171 The 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`. 130 172 131 Note 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. 132 133 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. 134 135 ==== Git ==== 136 137 Git hooks can be used in the same way for explicit syncing of Git repositories. If your git repository is one that gets committed to directly on the machine that hosts trac, add the following to the `hooks/post-receive` file in your git repo (note: this will do nothing if you only update the repo by pushing to it): 173 See the [http://svnbook.red-bean.com/en/1.7/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. 174 175 ==== Git 176 177 Git hooks can be used in the same way for explicit syncing of Git repositories. If your git repository is one that gets committed to directly on the machine that hosts trac, add the following to the `hooks/post-commit` file in your git repo (note: this will do nothing if you only update the repo by pushing to it): 138 178 {{{#!sh 139 179 #!/bin/sh … … 145 185 {{{#!sh 146 186 #!/bin/sh 187 tracenv=/path/to/env # change with your Trac environment's path 188 repos= # change with your repository's name 147 189 while read oldrev newrev refname; do 148 git rev-list --reverse $newrev ^$oldrev | \ 149 while read rev; do 150 trac-admin /path/to/env changeset added <repos> $rev 151 done 190 if [ "$oldrev" = 0000000000000000000000000000000000000000 ]; then 191 git rev-list --reverse "$newrev" -- 192 else 193 git rev-list --reverse "$newrev" "^$oldrev" -- 194 fi | xargs trac-admin "$tracenv" changeset added "$repos" 152 195 done 153 196 }}} … … 155 198 The `<repos>` argument can be either a repository name (use "`(default)`" for the default repository) or the path to the repository. 156 199 157 ==== Mercurial ====200 ==== Mercurial 158 201 159 202 For 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): … … 173 216 }}} 174 217 175 === Per-request synchronization ===#PerRequestSync176 If the post-commit hooks are not available, the environment can be set up for per-request synchronization. In that case, the ` [trac] repository_sync_per_request` option in [wiki:TracIni#trac-section trac.ini] must be set to a comma-separated list of repository names to be synchronized.218 === Per-request synchronization #PerRequestSync 219 If the post-commit hooks are not available, the environment can be set up for per-request synchronization. In that case, the `sync_per_request` attribute for each repository in the database and in [wiki:TracIni#trac-section trac.ini] must be set to `true`. 177 220 178 221 Note that in this case, the changeset listener extension point is not called, and therefore plugins using it will not work correctly. 179 222 180 181 == Migration from a single-repository setup (Subversion) == #Migration 182 The following procedure illustrates a typical migration from a Subversion single-repository setup to multiple repositories. 183 184 1. Remove the default repository specification from the `[trac] repository_dir` option. 185 1. Add the main repository as a named repository. 186 1. Re-synchronize the main repository. 187 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. 188 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. 189 1. Repeat steps 2, 3 and 4 to add other "named" repositories as needed. 190 191 == Migration from a single-repository setup (Mercurial) == #MigrationMercurial 192 The 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. 193 194 1. Upgrade to the latest version of the TracMercurial plugin. 195 1. Remove the default repository specification from the `[trac] repository_dir` option. 196 1. Add the main repository as a named repository. 197 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. 198 1. Repeat step 3 to add other "named" repositories as needed. 199 200 == Troubleshooting == 201 202 === My trac-post-commit-hook doesn't work anymore === #trac-post-commit-hook 223 == Automatic changeset references in tickets 224 225 You can automatically add a reference to the changeset as a ticket comment whenever changes are committed to the repository. The description of the commit needs to contain one of the following formulas: 226 * '''`Refs #123`''' - to reference this changeset in `#123` ticket 227 * '''`Fixes #123`''' - to reference this changeset and close `#123` ticket with the default status ''fixed'' 228 229 This functionality requires installing a post-commit hook as described in [#ExplicitSync], 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. 230 {{{#!ini 231 tracopt.ticket.commit_updater.* = enabled 232 }}} 233 For more information, see the documentation of the `CommitTicketUpdater` component in the //Plugins// admin panel and the [trac:CommitTicketUpdater] page. 234 235 == Troubleshooting 236 237 === My trac-post-commit-hook doesn't work anymore #trac-post-commit-hook 203 238 204 239 You must now use the optional components from `tracopt.ticket.commit_updater.*`, which you can activate through the Plugins panel in the Administrative part of the web interface, or by directly modifying the [TracIni#components-section "[components]"] section in the trac.ini. Be sure to use [#ExplicitSync explicit synchronization] as explained above. 240 241 See [trac:CommitTicketUpdater#Troubleshooting] for more troubleshooting tips.
