Upgrade Trac to either 1.4.4 or 1.6

[Mike Taves]

Currently OSGeo is running and older ​Trac 1.4.3 released May 10, 2021, based on Python 2.7.

The web UI shows that this is Python 2, as it has output like Branches:[(u'master', ...)]

According to ​TracDownload there are two supported release series:

• Older Stable Release - currently ​Trac 1.4.4, still uses Python 2.7.
• Latest Stable Release - currently ​Trac 1.6, which requires Python 3.

Note that currently 1.6 is supported in Debian bookworm via ​backports.

[strk]

We're still on Debian Buster (10) on that host so this ticket is better done after a system upgrade (or contextually), see #2822

[strk]

Actually it looks like trac is currently installed via pip so we can easily upgrade to 1.4.4 - I'll check release notes and proceed with the least risky. We might setup a staging container for 1.6

[strk]

Previous upgrade was from 1.2 to 1.4 and tracked by #2372 A staging host already exists, I've added info about it on ​https://wiki.osgeo.org/wiki/Trac#Staging

[strk]

I've upgraded trac to 1.4.4 on both staging and production, using:

pip install --upgrade Trac==1.4.4

I'll close this ticket, feel free to file a new one if you see a compelling reason to upgrade to 1.6

[strk]

Trac 1.6 is in staging (compelling reason was upgrade to Debian Bullseye forced python3 for mod_python): please test ​​https://dev.trac.osgeo.org

[strk]

One problem we have is that the {{{ box syntax on wiki, as used by ​https://trac.osgeo.org/postgis start wiki page is not available in current staging Trac-1.6, it must be implemented by some plugin that are currently not installing fine, but I don't know which plugin implements that

[strk]

It could be one of these plugins, all failing to install:

    :stderr: ERROR: Could not find a version that satisfies the requirement TracDoxygen
    :stderr: ERROR: Could not find a version that satisfies the requirement TracGamedevTheme                                                                                                   
    :stderr: ERROR: Could not find a version that satisfies the requirement TracpathTheme
    :stderr: ERROR: Could not find a version that satisfies the requirement TracSectionEditPlugin                                                                                              
    :stderr: ERROR: Could not find a version that satisfies the requirement TracTweakTheme
    :stderr: ERROR: Could not find a version that satisfies the requirement BasicThemeEditorPlugin                                                                                             
    :stderr: ERROR: Could not find a version that satisfies the requirement BlueFlatTheme

[strk]

I think "box" is defined by ​https://trac-hacks.org/wiki/WikiExtrasPlugin The plugin is installed on the system but for some reason trac doesn't list it here: ​https://dev.trac.osgeo.org/postgis/admin/general/plugin

[strk]

The culprit seems to be this: [2024-08-21 12:10:43,970] ​postgis:loader ERROR: Skipping "tracwikiextras = tracwikiextras": ModuleNotFoundError: No module named 'boxes'

More errors are in /var/log/trac_all.log

[strk]

One difference I spotted between the working (1.3.2.dev0) and non-working (1.3.1) versions of WikiExtrasPlugin is an import line that is more qualified in the working version:

dist-packages/tracwikiextras/init__.py:from tracwikiextras.boxes import AboutWikiBoxes, Boxes

Whereas in the non-working version is only from boxes

Now to find out how to force install of 1.3.2.dev0

[strk]

There is no 1.3.2 package on pyPI so 1.3.2.dev0 must have been installed from a development branch but I cannot find the sources

[strk]

Sources found, although they are on a very slow server. Trunk branch has the fix: ​https://trac-hacks.org/svn/wikiextrasplugin/trunk/tracwikiextras/__init__.py

[strk]

Version 1.3.2.dev0 of TracWikiExtras is now installed (via ansible, from the svn source repository)

[strk]

Trac 1.6 is up and running in production