Default logging level

[EmmaRenauld]

Now that we print the scilpy version, something like:

for bundle in *
do 
      echo $bundle
      scil_tractogram_convert.py $bundle bundle.trk
done

Will output:

BPS_left
INFO:root:Scilpy version: 1.7.dev0
BPS_right
INFO:root:Scilpy version: 1.7.dev0
CA
INFO:root:Scilpy version: 1.7.dev0
CC
INFO:root:Scilpy version: 1.7.dev0
Cingulum_left
INFO:root:Scilpy version: 1.7.dev0
Cingulum_right
INFO:root:Scilpy version: 1.7.dev0
CP
INFO:root:Scilpy version: 1.7.dev0
Fornix
INFO:root:Scilpy version: 1.7.dev0
ICP_left
[...]

Which is a little ugly. We should make sure that the version only shows with option -v.

[EmmaRenauld]

@frheault You were looking for easy tasks.

[arnaudbore]

I think it may be a little bit more complicated and heavy than anticipated. There is not consensus across scripts on how verbose is used. Adding this in each script implies to duplicate code or to add a function to properly set verbose on each script. 🤔

[EmmaRenauld]

Maybe the version could be added as epilog in all argparsers? So it would only print with --help?
(We would need to see what to do when there's already an epilog...)

[karanphil]

Also, a default logging.INFO might be to much verbose... what about logging.WARNING as default? And if you put -v, you then get logging.INFO or DEBUG. I could do a PR for this, looking at every scripts.

[EmmaRenauld]

Rapidly, I feel like it's a good option but maybe I don't have all scripts in mind.