Changes between Version 1 and Version 2 of TracRepositoryAdmin
- Timestamp:
- Apr 3, 2020, 9:27:29 PM (5 years ago)
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TracRepositoryAdmin
v1 v2 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 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 ||` name` ||The `name` attribute specifies the leading path element to the repository.||27 ||`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. ||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 `[trac] repository_type` option. || 28 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. || 29 43 30 The `name` attribute and one of `alias` or `dir` are mandatory. All others are optional. 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. 31 47 32 48 After adding a repository, the cache for that repository must be re-synchronized once with the `trac-admin $ENV repository resync` command. … … 36 52 37 53 38 === In `trac.ini` ===#ReposTracIni54 === In `trac.ini` #ReposTracIni 39 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. 40 56 41 57 The 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. 42 58 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. 44 {{{ 45 #!ini 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. 60 {{{#!ini 46 61 [repositories] 47 62 project.dir = /var/repos/project … … 49 64 project.type = svn 50 65 project.url = http://example.com/svn/project 66 project.hidden = true 67 51 68 lib.dir = /var/repos/lib 52 69 lib.description = This is the secondary library code. 53 70 lib.type = svn 54 71 lib.url = http://example.com/svn/lib 72 55 73 .alias = project 56 .hidden = true57 74 }}} 58 75 Note that `name.alias = target` makes `name` an alias for the `target` repo, not the other way around. 59 76 60 === In the database ===#ReposDatabase77 === In the database #ReposDatabase 61 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. 62 79 … … 79 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. 80 97 81 82 == 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 83 105 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. 84 106 85 107 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. 86 108 87 === Explicit synchronization === #ExplicitSync 88 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. 109 === Mercurial Repositories 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. 111 112 === 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. 89 114 90 115 `changeset added <repos> <rev> [...]`:: … … 96 121 The `<repos>` argument can be either a repository name (use "`(default)`" for the default repository) or the path to the repository. 97 122 123 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. 124 125 ==== Subversion 126 98 127 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`): 99 {{{ 100 #!sh 128 {{{#!sh 101 129 #!/bin/sh 130 export PYTHON_EGG_CACHE="/path/to/dir" 102 131 /usr/bin/trac-admin /path/to/env changeset added "$1" "$2" 103 132 }}} 133 Note: Check with `whereis trac-admin`, whether `trac-admin` is really installed under `/usr/bin/` or maybe under `/usr/local/bin/` and adapt the path. 104 134 On Windows (`post-commit.cmd`): 105 {{{ 106 #!application/x-dos-batch 135 {{{#!bat 107 136 @C:\Python26\Scripts\trac-admin.exe C:\path\to\env changeset added "%1" "%2" 108 137 }}} 109 138 110 139 The post-revprop-change hook for Subversion is very similar. On Unix (`post-revprop-change`): 111 {{{ 112 #!sh 140 {{{#!sh 113 141 #!/bin/sh 142 export PYTHON_EGG_CACHE="/path/to/dir" 114 143 /usr/bin/trac-admin /path/to/env changeset modified "$1" "$2" 115 144 }}} 116 145 On Windows (`post-revprop-change.cmd`): 117 {{{ 118 #!application/x-dos-batch 146 {{{#!bat 119 147 @C:\Python26\Scripts\trac-admin.exe C:\path\to\env changeset modified "%1" "%2" 120 148 }}} 121 149 150 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`. 151 122 152 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. 123 153 124 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. 125 126 === Per-request synchronization === #PerRequestSync 127 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. 154 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. 155 156 ==== Git 157 158 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): 159 {{{#!sh 160 #!/bin/sh 161 REV=$(git rev-parse HEAD) 162 trac-admin /path/to/env changeset added <repos> $REV 163 }}} 164 165 Alternately, if your repository is one that only gets pushed to, add the following to the `hooks/post-receive` file in the repo: 166 {{{#!sh 167 #!/bin/sh 168 tracenv=/path/to/env # change with your Trac environment's path 169 repos= # change with your repository's name 170 while read oldrev newrev refname; do 171 if [ "$oldrev" = 0000000000000000000000000000000000000000 ]; then 172 git rev-list --reverse "$newrev" -- 173 else 174 git rev-list --reverse "$newrev" "^$oldrev" -- 175 fi | xargs trac-admin "$tracenv" changeset added "$repos" 176 done 177 }}} 178 179 The `<repos>` argument can be either a repository name (use "`(default)`" for the default repository) or the path to the repository. 180 181 ==== Mercurial 182 183 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): 184 {{{#!ini 185 [hooks] 186 ; If mercurial-plugin is installed globally 187 commit = python:tracext.hg.hooks.add_changesets 188 changegroup = python:tracext.hg.hooks.add_changesets 189 190 ; If mercurial-plugin is installed in a Trac plugins directory 191 commit = python:/path/to/hooks.py:add_changesets 192 changegroup = python:/path/to/hooks.py:add_changesets 193 194 [trac] 195 env = /path/to/env 196 trac-admin = /path/to/trac-admin 197 }}} 198 199 === Per-request synchronization #PerRequestSync 200 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 `false`. 128 201 129 202 Note that in this case, the changeset listener extension point is not called, and therefore plugins using it will not work correctly. 130 203 131 132 == Migration from a single-repository setup == #Migration 133 The following procedure illustrates a typical migration from a single-repository setup to multiple repositories. 134 135 1. Remove the default repository specification from the `[trac] repository_dir` option. 136 1. Add the "main" repository as a named repository. 137 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. 141 142 == Troubleshooting == 143 144 === My trac-post-commit-hook doesn't work anymore === #trac-post-commit-hook 204 == Automatic changeset references in tickets 205 206 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: 207 * '''`Refs #123`''' - to reference this changeset in `#123` ticket 208 * '''`Fixes #123`''' - to reference this changeset and close `#123` ticket with the default status ''fixed'' 209 210 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. 211 {{{#!ini 212 tracopt.ticket.commit_updater.* = enabled 213 }}} 214 For more information, see the documentation of the `CommitTicketUpdater` component in the //Plugins// admin panel and the [trac:CommitTicketUpdater] page. 215 216 == Troubleshooting 217 218 === My trac-post-commit-hook doesn't work anymore #trac-post-commit-hook 145 219 146 220 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.
