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Changes between Version 1 and Version 2 of TracUpgrade


Ignore:
Timestamp:
21/09/2011 11:27:42 (6 years ago)
Author:
trac
Comment:

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  • TracUpgrade

    v1 v2  
    44== Instructions == 
    55 
    6 Typically, there are five steps involved in upgrading to a newer version of Trac: 
     6Typically, there are seven steps involved in upgrading to a newer version of Trac: 
    77 
    88=== 1. Update the Trac Code === #UpdatetheTracCode 
     
    1010Get the new version as described in TracInstall, or your operating system specific procedure. 
    1111 
    12 If you already have a 0.11 version of Trac installed via `easy_install`, it might be the easiest to use it also to upgrade you Trac installation. 
     12If you already have a 0.11 version of Trac installed via `easy_install`, it might be easiest to also use `easy_install` to upgrade your Trac installation: 
    1313 
    1414{{{ 
    15 # easy_install --upgrade Trac=0.12beta1 
     15# easy_install --upgrade Trac==0.12 
    1616}}} 
    17 (once beta1 is released, that is) 
    1817 
    19 If you do a manual (not operating system specific) upgrade, you should also stop any running Trac server before the installation. Doing "hot" upgrades is not advised, especially not on Windows ([trac:ticket:7625 #7265]). 
     18If you do a manual (not operating system-specific) upgrade, you should also stop any running Trac servers before the installation. Doing "hot" upgrades is not advised, especially on Windows ([trac:#7265]). 
    2019 
    21 You may also want to remove the pre-existing Trac code by deleting the `trac` directory from the Python `lib/site-packages` directory, or remove Trac .eggs from former versions. 
    22 The location of the site-packages directory depends on the operating system, and the location in which Python was installed. However, the following locations are common: 
     20You may also want to remove the pre-existing Trac code by deleting the `trac` directory from the Python `lib/site-packages` directory, or remove Trac `.egg` files from former versions. 
     21The location of the site-packages directory depends on the operating system and the location in which Python was installed. However, the following locations are typical: 
    2322 * on Linux: `/usr/lib/python2.X/site-packages` 
    2423 * on Windows: `C:\Python2.X\lib\site-packages` 
    2524 * on MacOSX: `/Library/Python/2.X/site-packages` 
    2625 
    27 You may also want to remove the Trac `cgi-bin`, `htdocs`, `templates` and `wiki-default` directories that are commonly found in a directory called `share/trac` (the exact location depends on your platform). 
     26You may also want to remove the Trac `cgi-bin`, `htdocs`, `templates` and `wiki-default` directories that are commonly found in a directory called `share/trac`. (The exact location depends on your platform.) 
    2827 
    29 This cleanup is not mandatory, but it 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. 
     28This 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. 
    3029 
    3130=== 2. Upgrade the Trac Environment === #UpgradetheTracEnvironment 
     
    5352}}} 
    5453 
    55 Note that this procedure will of course leave your `WikiStart` page intact. 
     54Note that this procedure will leave your `WikiStart` page intact. 
    5655 
    5756=== 4. Resynchronize the Trac Environment Against the Source Code Repository === 
     
    6059 
    6160{{{ 
    62 trac-admin /path/to/projenv resync 
     61trac-admin /path/to/projenv repository resync '*' 
    6362}}} 
    6463 
    65 === 5. Steps specific to a given Trac version  === 
     64=== 5. Refresh static resources === 
     65 
     66If you have set up a web server to give out static resources directly (accessed using the `/chrome/` URL) then you will need to refresh them using the same command: 
     67{{{ 
     68trac-admin /path/to/env deploy /deploy/path 
     69}}} 
     70this will extract static resources and CGI scripts (`trac.wsgi`, etc) from new Trac version and its plugins into `/deploy/path`. 
     71 
     72Some 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. 
     73 
     74=== 6. Steps specific to a given Trac version  === 
    6675==== Upgrading from Trac 0.11 to Trac 0.12 ==== 
    6776===== Python 2.3 no longer supported ===== 
     
    6978 
    7079===== SQLite v3.x required ===== 
    71 SQLite v2.x is no longer supported, if you happen to still use a Trac database using this format, you'll need to convert it to SQLite v3.x first. See [trac:PySqlite#UpgradingSQLitefrom2.xto3.x] for details. 
     80SQLite v2.x is no longer supported. If you still use a Trac database of this format, you'll need to convert it to SQLite v3.x first. See [trac:PySqlite#UpgradingSQLitefrom2.xto3.x] for details. 
     81 
     82===== PySqlite 2 required ===== 
     83PySqlite 1.1.x is no longer supported. Please install 2.5.5 or later if possible (see [#Tracdatabaseupgrade Trac database upgrade] below). 
    7284 
    7385===== Multiple Repository Support ===== 
    74 If you plan to add more repositories to your Trac instance, as this is now possible with the newly introduced multiple repository support, please refer to TracRepositoryAdmin#Migration. 
     86The latest version includes support for multiple repositories. If you plan to add more repositories to your Trac instance, please refer to TracRepositoryAdmin#Migration. 
    7587 
    76 This can be of interest even if you only have one repository, as there's now a way to avoid the potentially costly resync check at every request. 
     88This 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. 
    7789 
    7890===== Improved repository synchronization ===== 
    79 In addition to supporting multiple repositories, a new more efficient method for synchronizing Trac and your repositories was implemented. 
     91In addition to supporting multiple repositories, there is now a more efficient method for synchronizing Trac and your repositories. 
    8092 
    8193While you can keep the same synchronization as in 0.11 adding the post-commit hook as outlined in TracRepositoryAdmin#Synchronization and TracRepositoryAdmin#ExplicitSync will allow more efficient synchronization and is more or less required for multiple repositories. 
    8294 
    8395Note that if you were using the `trac-post-commit-hook`, ''you're strongly advised to upgrade it'' to the new hook documented in the above references, as the old hook will not work with anything else than the default repository and even for this case, it won't trigger the appropriate notifications. 
     96 
     97===== Authz permission checking ===== 
     98The authz permission checking has been migrated to a fine-grained permission policy. If you use authz permissions (aka `[trac] authz_file` and `authz_module_name`), you must add `AuthzSourcePolicy` in front of your permission policies in `[trac] permission_policies`. You must also remove `BROWSER_VIEW`, `CHANGESET_VIEW`, `FILE_VIEW` and `LOG_VIEW` from your global permissions (with `trac-admin $ENV permission remove` or the "Permissions" admin panel). 
     99 
     100===== Microsecond timestamps ===== 
     101All timestamps in database tables (except the `session` table) have been changed from "seconds since epoch" to "microseconds since epoch" values. This change should be transparent to most users, except for custom reports. If any of your reports use date/time columns in calculations (e.g. to pass them to `datetime()`), you must divide the values retrieved from the database by 1'000'000. Similarly, if a report provides a calculated value to be displayed as a date/time (i.e. with a column named "time", "datetime", "changetime", "date", "created" or "modified"), you must provide a microsecond timestamp, that is, multiply your previous calculation with 1'000'000. 
    84102 
    85103==== Upgrading from Trac 0.10 to Trac 0.11 ==== 
     
    90108 
    91109===== Trac Macros, Plugins ===== 
    92 The Trac macros will need to be adapted, as the old-style wiki-macros are not supported anymore (due to the drop of [trac:ClearSilver ClearSilver] and the HDF); they need to be converted to the new-style macros, see WikiMacros. When they are converted to the new style, they need to be placed into the plugins directory instead and not wiki-macros, which is no longer scanned for macros or plugins. 
     110The Trac macros will need to be adapted, as the old-style wiki-macros are not supported anymore (due to the drop of [trac:ClearSilver] and the HDF); they need to be converted to the new-style macros, see WikiMacros. When they are converted to the new style, they need to be placed into the plugins directory instead and not wiki-macros, which is no longer scanned for macros or plugins. 
    93111 
    94112===== For FCGI/WSGI/CGI users ===== 
     
    103121If you had the webadmin plugin installed, you can uninstall it as it is part of the Trac code base since 0.11. 
    104122 
    105 === 6. Restart the Web Server === #RestarttheWebServer 
     123=== 7. Restart the Web Server === #RestarttheWebServer 
    106124 
    107125If you are not running [wiki:TracCgi CGI], reload the new Trac code by restarting your web server. 
     
    115133`trac-admin` will not delete or remove default wiki pages that were present in a previous version but are no longer in the new version. 
    116134 
     135=== Trac database upgrade === 
     136 
     137A 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 
     139== Upgrading Python == 
     140 
     141Upgrading 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 
     143=== Windows and Python 2.6 === 
     144 
     145If you've been using !CollabNet's Subversion package, you may need to uninstall that in favor of [http://alagazam.net/ Algazam], which has the Python bindings readily available (see TracSubversion).  The good news is, that works with no tweaking. 
    117146 
    118147== Changing Database Backend ==