Changes between Version 3 and Version 4 of TracUpgrade


Ignore:
Timestamp:
12/02/2016 05:46:01 PM (13 months ago)
Author:
trac
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • TracUpgrade

    v3 v4  
    1515=== 2. Update the Trac Code #UpdatetheTracCode
    1616
    17 Get the new version as described in TracInstall, or your operating system specific procedure.
    18 
    19 If you already have a 0.12 version of Trac installed via `easy_install`, it might be easiest to also use `easy_install` to upgrade your Trac installation:
    20 
    21 {{{#!sh
    22 easy_install --upgrade Trac==1.0
    23 }}}
    24 
    25 If 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]).
     17Get the new version as described in TracInstall, or through your operating system package manager.
     18
     19If you already an earlier version of Trac installed via `easy_install`, it might be easiest to also use `easy_install` to upgrade your Trac installation:
     20
     21{{{#!sh
     22easy_install --upgrade Trac==1.2
     23}}}
    2624
    2725You 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.
     
    3129 * on MacOSX: `/Library/Python/2.X/site-packages`
    3230
    33 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. This cleanup is not mandatory, but makes it easier to troubleshoot issues later on, as your installation is uncluttered by code or templates from a previous release that is not used anymore. As usual, make a backup before actually removing things.
     31You may also want to remove the directory in which your static resources are [TracInstall#cgi-bin deployed]. The exact location depends on your platform. This cleanup is not mandatory, but makes it easier to troubleshoot issues later on, as your installation is uncluttered by code or templates from a previous release that is not used anymore. As usual, make a backup before actually removing things.
    3432
    3533=== 3. Upgrade the Trac Environment #UpgradetheTracEnvironment
     
    4240}}}
    4341
    44 This command will do nothing if the environment is already up-to-date.
     42This command will not have any effect if the environment is already up-to-date.
    4543
    4644Note that a backup of your database will be performed automatically prior to the upgrade.
    47 This feature is relatively new for PostgreSQL or MySQL databases, so if it fails, you will have to backup the database manually. Then, to perform the actual upgrade, run:
     45This feature is relatively new for PostgreSQL or MySQL databases, so if it fails, you will have to backup the database manually. Then, to perform the actual upgrade:
    4846{{{#!sh
    4947trac-admin /path/to/projenv upgrade --no-backup
     
    6563trac-admin /path/to/env deploy /deploy/path
    6664}}}
    67 this will extract static resources and CGI scripts (`trac.wsgi`, etc) from new Trac version and its plugins into `/deploy/path`.
     65
     66This will extract static resources and CGI scripts (`trac.wsgi`, etc) from new Trac version and its plugins into `/deploy/path`.
    6867
    6968Some 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.
     
    7473=== 6. Steps specific to a given Trac version
    7574
     75==== Upgrading from Trac 1.0 to 1.2 #to1.2
     76
     77===== Python 2.5 no longer supported
     78
     79Upgrade Python to at least 2.6 or 2.7, but not 3.0 or greater.
     80
     81===== Obsolete Plugins
     82
     83Trac has added functionality equivalent to the following plugins:
     84* [https://trac-hacks.org/wiki/AdminEnumListPlugin AdminEnumListPlugin]
     85* [https://trac-hacks.org/wiki/DateFieldPlugin DateFieldPlugin]: see the **time** [TracTicketsCustomFields#AvailableFieldTypesandOptions custom field type]
     86* [https://trac-hacks.org/wiki/GroupBasedRedirectionPlugin GroupBasedRedirectionPlugin]: the default handler can set as a user preference.
     87* [https://trac-hacks.org/wiki/LinenoMacro LinenoMacro]: see WikiProcessors#AvailableProcessors
     88* [https://trac-hacks.org/wiki/NeverNotifyUpdaterPlugin NeverNotifyUpdaterPlugin]: see [TracNotification#notification-subscriber-section notification subscribers]
     89* [https://trac-hacks.org/wiki/QueryUiAssistPlugin QueryUiAssistPlugin]: see TracQuery#Filters.
     90* [https://trac-hacks.org/wiki/TicketCreationStatusPlugin TicketCreationStatusPlugin]: see [#NewWorkflowActions]
     91
     92The plugins should be removed when upgrading Trac to 1.2.
     93
     94===== New workflow actions #NewWorkflowActions
     95
     96The ticket creation step is controlled with a workflow action. The default workflow has `create` and `create_and_assign` actions. The `create` action will always be added when upgrading the database. The `create_and_assign` action will be added if the workflow has an //assigned// state. You may want to edit your workflow after upgrading the database to customize the actions available on the //New Ticket// page.
     97
     98===== New permissions policy for read-only wiki pages
     99
     100Since 1.1.2 the read-only attribute of wiki pages is enabled and enforced only when `ReadonlyWikiPolicy` is in the list of active permission policies. If `[trac] permission_policy` has the default value `DefaultPermissionPolicy, LegacyAttachmentPolicy`, then `ReadonlyWikiPolicy` should be automatically appended to the list when upgrading the environment:
     101{{{#!ini
     102[trac]
     103permission_policies = ReadonlyWikiPolicy,
     104 DefaultPermissionPolicy,
     105 LegacyAttachmentPolicy
     106}}}
     107
     108If other permission policies are enabled, `trac.ini` will need to have `ReadonlyWikiPolicy` appended to the list of active `permission_policies`. See TracFineGrainedPermissions#ReadonlyWikiPolicy for additional details on the proper ordering.
     109
    76110==== Upgrading from Trac 0.12 to Trac 1.0 #to1.0
    77111
    78112===== Python 2.4 no longer supported
     113
    79114Upgrade Python to at least 2.5, but not 3.0.
    80115
     
    90125
    91126===== Subversion components not enabled by default for new installations
     127
    92128The Trac components for Subversion support are no longer enabled by default. To enable the svn support, you need to make sure the `tracopt.versioncontrol.svn` components are enabled, for example by setting the following in the TracIni:
    93129{{{#!ini
     
    95131tracopt.versioncontrol.svn.* = enabled
    96132}}}
     133
    97134The upgrade procedure should take care of this and change the TracIni appropriately, unless you already had the svn components explicitly disabled.
    98135
    99136===== Attachments migrated to new location
     137
    100138Another step in the automatic upgrade will change the way the attachments are stored. Create a backup of the `attachments` directory before upgrading. In case the `attachments` directory contains some files which are //not// attachments, the last step of the migration to the new layout will fail: the deletion of the now unused `attachments` directory can't be done if there are still files and folders in it. You may ignore this error, but better to move them elsewhere and remove the `attachments` directory manually. The attachments themselves are now all located in your environment below the `files/attachments` directory.
    101139
    102140===== Behavior of `[ticket] default_owner` changed
     141
    103142Prior to 1.0, the owner field of new tickets always defaulted to `[ticket] default_owner` when the value was not empty. If the value was empty, the owner field defaulted to to the Component's owner. In 1.0 and later, the `default_owner` must be set to `< default >` to make new tickets default to the Component's owner. This change allows the `default_owner` to be set to an empty value if no default owner is desired.
    104143
     
    106145
    107146===== Python 2.3 no longer supported
     147
    108148The minimum supported version of Python is now 2.4.
    109149
    110150===== SQLite v3.x required
     151
    111152SQLite 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.
    112153
    113154===== [trac:PySqlite] 2 required
     155
    114156[trac:PySqlite] 1.1.x is no longer supported. Please install 2.5.5 or later if possible, see [#Tracdatabaseupgrade Trac database upgrade] below.
    115157
     
    130172
    131173===== Multiple Repository Support
     174
    132175The latest version includes support for multiple repositories. If you plan to add more repositories to your Trac instance, please refer to TracRepositoryAdmin#Migration.
    133176
     
    143186
    144187===== Improved repository synchronization
     188
    145189In addition to supporting multiple repositories, there is now a more efficient method for synchronizing Trac and your repositories.
    146190
     
    150194
    151195===== Authz permission checking
     196
    152197The 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.
    153198
    154199===== Microsecond timestamps
     200
    155201All 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.
    156202
    157203==== Upgrading from Trac 0.10 to Trac 0.11
     204
    158205===== Site Templates and Styles
     206
    159207The templating engine has changed in 0.11 to Genshi, please look at TracInterfaceCustomization for more information.
    160208
     
    162210
    163211===== Trac Macros, Plugins
     212
    164213The 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.
    165214
    166215===== For FCGI/WSGI/CGI users
     216
    167217For those who run Trac under the CGI environment, run this command in order to obtain the trac.*gi file:
    168218{{{#!sh
     
    173223
    174224===== Web Admin plugin integrated
     225
    175226If you had the [trac:WebAdmin] plugin installed, you can uninstall it as it is part of the Trac code base since 0.11.
    176227
    177228===== New Default Configurable Workflow
    178229
    179 When you run `trac-admin <env> upgrade`, your `trac.ini` will be modified to include a `[ticket-workflow]` section. The workflow configured in this case is the original workflow, so that ticket actions will behave like they did in 0.10.
    180 
    181 Graphically, that looks like this:
     230When you run `trac-admin <env> upgrade`, your `trac.ini` will be modified to include a `[ticket-workflow]` section. The workflow configured in this case is the original workflow, so that ticket actions will behave like they did in 0.10:
    182231
    183232{{{#!Workflow width=500 height=240
     
    201250There are some significant caveats in this, such as accepting a ticket sets it to 'assigned' state, and assigning a ticket sets it to 'new' state. So you will probably want to migrate to "basic" workflow; [trac:source:trunk/contrib/workflow/migrate_original_to_basic.py contrib/workflow/migrate_original_to_basic.py] may be helpful. See TracWorkflow for a detailed description of the new basic workflow.
    202251
    203 ===== Global Configuration
    204 In versions prior to 0.11, the global configuration was by default located in `$prefix/share/trac/conf/trac.ini` or `/etc/trac/trac.ini`, depending on the distribution. You may want to specify that file to inherit from when upgrading.  Literally, when upgrading you have to add an `[inherit]` section to your project's `trac.ini` file. Additionally, you have to move your customized templates and common images from `$prefix/share/trac/...` to the new location.
    205 
    206252=== 7. Restart the Web Server #RestarttheWebServer
    207253
     
    222268
    223269=== Wiki Upgrade
     270
    224271`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.
    225272
     
    229276
    230277=== Parent dir
     278
    231279If you use a Trac parent env configuration and one of the plugins in one child does not work, none of the children will work.
    232280
     
    243291=== Changing Database Backend
    244292
    245 The [http://trac-hacks.org/wiki/TracMigratePlugin TracMigratePlugin] on [http://trac-hacks.org trac-hacks.org] has been written to assist in migrating between SQLite, MySQL and PostgreSQL databases.
     293The [https://trac-hacks.org/wiki/TracMigratePlugin TracMigratePlugin] on [https://trac-hacks.org trac-hacks.org] has been written to assist in migrating between SQLite, MySQL and PostgreSQL databases.
    246294
    247295=== Upgrading from older versions of Trac #OlderVersions