Changes between Version 3 and Version 4 of TracUpgrade
- Timestamp:
- 22/08/2013 01:03:16 (11 years ago)
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TracUpgrade
v3 v4 1 1 = Upgrade Instructions = 2 2 [[TracGuideToc]] 3 [[PageOutline(2-3,,inline,unnumbered)]] 3 4 4 5 == Instructions == … … 6 7 Typically, there are seven steps involved in upgrading to a newer version of Trac: 7 8 8 === 1. Update the Trac Code === #UpdatetheTracCode 9 === 1. Bring your server off-line 10 11 It is not a good idea to update a running server: the server processes may have parts of the current packages cached in memory, and updating the code will likely trigger [#ZipImportError internal errors]. 12 13 === 2. Update the Trac Code === #UpdatetheTracCode 9 14 10 15 Get the new version as described in TracInstall, or your operating system specific procedure. … … 28 33 This cleanup is not mandatory, but makes it easier to troubleshoot issues later on, as you won't waste your time looking at code or templates from a previous release that are not being used anymore... As usual, make a backup before actually deleting things. 29 34 30 === 2. Upgrade the Trac Environment === #UpgradetheTracEnvironment35 === 3. Upgrade the Trac Environment === #UpgradetheTracEnvironment 31 36 32 37 Environment upgrades are not necessary for minor version releases unless otherwise noted. … … 45 50 }}} 46 51 47 === 3. Update the Trac Documentation === #UpdatetheTracDocumentation52 === 4. Update the Trac Documentation === #UpdatetheTracDocumentation 48 53 49 54 Every [TracEnvironment Trac environment] includes a copy of the Trac documentation for the installed version. As you probably want to keep the included documentation in sync with the installed version of Trac, [TracAdmin trac-admin] provides a command to upgrade the documentation: … … 54 59 Note that this procedure will leave your `WikiStart` page intact. 55 60 56 === 4. Resynchronize the Trac Environment Against the Source Code Repository ===57 58 Each [TracEnvironment Trac environment] must be resynchronized against the source code repository in order to avoid errors such as "[http://trac.edgewall.org/ticket/6120 No changeset ??? in the repository]" while browsing the source through the Trac interface:59 60 {{{61 trac-admin /path/to/projenv repository resync '*'62 }}}63 61 64 62 === 5. Refresh static resources === … … 70 68 this will extract static resources and CGI scripts (`trac.wsgi`, etc) from new Trac version and its plugins into `/deploy/path`. 71 69 72 Some web browsers cache CSS and Javascript files persistently, so you may need to instruct your users to manually erase the contents of their browser's cache. 70 Some web browsers (IE, Opera) cache CSS and Javascript files aggressively, so you may need to instruct your users to manually erase the contents of their browser's cache, a forced refreshed (`<F5>`) should be enough. 71 {{{#!comment 72 Remove above note once #9936 is fixed. 73 }}} 73 74 74 75 === 6. Steps specific to a given Trac version === 75 76 ==== Upgrading from Trac 0.11 to Trac 0.12 ==== 77 76 78 ===== Python 2.3 no longer supported ===== 77 79 The minimum supported version of python is now 2.4 … … 87 89 88 90 This may be of interest to users with only one repository, since there's now a way to avoid the potentially costly resync check at every request. 91 92 ===== Resynchronize the Trac Environment Against the Source Code Repository ===== 93 94 Each [TracEnvironment Trac environment] must be resynchronized against the source code repository in order to avoid errors such as "[http://trac.edgewall.org/ticket/6120 No changeset ??? in the repository]" while browsing the source through the Trac interface: 95 96 {{{ 97 trac-admin /path/to/projenv repository resync '*' 98 }}} 89 99 90 100 ===== Improved repository synchronization ===== … … 127 137 == Known Issues == 128 138 129 === parent dir === 130 If you use a trac parent env configuration and one of the plugins in one child does not work, none of the children work. 139 Things you should pay attention to, while upgrading. 140 141 === Customized Templates 142 143 Trac supports customization of its Genshi templates by placing copies of the templates in the `<env>/templates` folder of your [TracEnvironment environment] or in a common location specified in the [[TracIni#GlobalConfiguration| [inherit] templates_dir]] configuration setting. If you choose to do so, be wary that you will need to repeat your changes manually on a copy of the new templates when you upgrade to a new release of Trac (even a minor one), as the templates will likely evolve. So keep a diff around ;-) 144 145 The preferred way to perform TracInterfaceCustomization is to write a custom plugin doing an appropriate `ITemplateStreamFilter` transformation, as this is more robust in case of changes: we usually won't modify element `id`s or change CSS `class`es, and if we have to do so, this will be documented in the TracDev/ApiChanges pages. 146 147 === !ZipImportError === 148 149 Due to internal caching of zipped packages, whenever the content of the packages change on disk, the in-memory zip index will no longer match and you'll get irrecoverable !ZipImportError errors. Better anticipate and bring your server down for maintenance before upgrading. 150 See [trac:#7014] for details. 131 151 132 152 === Wiki Upgrade === … … 137 157 A known issue in some versions of PySqlite (2.5.2-2.5.4) prevents the trac-admin upgrade script from successfully upgrading the database format. It is advised to use either a newer or older version of the sqlite python bindings to avoid this error. For more details see ticket [trac:#9434]. 138 158 139 == Upgrading Python == 159 === parent dir === 160 If you use a trac parent env configuration and one of the plugins in one child does not work, none of the children work. 161 162 == Related topics 163 164 === Upgrading Python === 140 165 141 166 Upgrading Python to a newer version will require reinstallation of Python packages: Trac of course; also [http://pypi.python.org/pypi/setuptools easy_install], if you've been using that. Assuming you're using Subversion, you'll also need to upgrade the Python bindings for svn. 142 167 143 === Windows and Python 2.6===168 ==== Windows and Python 2.6 ==== 144 169 145 If you've been using !CollabNet's Subversion package, you may need to uninstall that in favor of [http://alagazam.net/ Al gazam], which has the Python bindings readily available (see TracSubversion). The good news is, that works with no tweaking.170 If you've been using !CollabNet's Subversion package, you may need to uninstall that in favor of [http://alagazam.net/ Alagazam], which has the Python bindings readily available (see TracSubversion). The good news is, that works with no tweaking. 146 171 147 == Changing Database Backend==148 === SQLite to PostgreSQL===172 === Changing Database Backend === 173 ==== SQLite to PostgreSQL ==== 149 174 150 175 The [http://trac-hacks.org/wiki/SqliteToPgScript sqlite2pg] script on [http://trac-hacks.org trac-hacks.org] has been written to assist in migrating a SQLite database to a PostgreSQL database 151 176 152 == Older Versions ==177 === Upgrading from older versions of Trac === #OlderVersions 153 178 154 179 For upgrades from versions older than Trac 0.10, refer first to [trac:wiki:0.10/TracUpgrade#SpecificVersions].
