[SAC] Trac backups missing some instances

[Sandro Santilli]

I've noticed that the trac backup machinery only backups trac instances
that are listed in a file (/osgeo/projects), but that file does not
include all the available trac instance.

In particular these are missing:

 - el | https://trac.osgeo.org/el
 - geomoose | https://trac.osgeo.org/geomoose
 - gittest | https://trac.osgeo.org/gittest

The wiki page documenting how to create a new instance does not
mention updating that file (/osgeo/projects) so I guess it's easy
for it to end up out-of-sync:

 https://wiki.osgeo.org/wiki/Trac_Instances#Creating_a_trac_instance

Do you know which other script uses that file ?

When I needed a list of trac instances I created a 
/var/www/trac/trac_instances.txt and used it from
some scripts in /osgeo/tools/trac/ - do you see any
problem in using this new one instead of /osgeo/projects ?
I find it more clear as a name since not all OSGeo projects
use trac...

Is there any reason to leave some trac instances out of
the backup or should bacula simply backup all instances ?
(I think it should back them all up)

NOTE: the page shown at the https://trac.osgeo.org page is
manually edited so has yet another view of available instances,
could be turned to use the official list of instances.

--strk;