Fully configurable output format

[wookayin]

From @neighthan 's suggestion

It would be nice to have a full-on format string like, e.g., git log does so the user could specify which gpu parameters to show, in which order, with which colors.

To this end, we also need to introduce a config file (e.g. ~/.config/gpustat/gpustat.cfg).
Or, maybe using an environment variable?

[sisrfeng]

Hi, when can we use a config file?
Would you mind telling us how to modify the code to hide the gpu name and temperature?
Thx!

[neighthan]

@sisrfeng if having a config file is important to you, you could look at my repo here. I found it easier to just write a little script for this myself rather than trying to add the functionality to gpustat (especially as I already had some code for getting gpu info). My repo isn't popular like this one, though, so I haven't bothered adding much documentation. Here's what a config file looks like, though (just say which attributes you want to show, in which order, what separator to use, and any color options. Use format string syntax). Feel free to let me know if you try it and have any trouble (I'm sure it doesn't support everything that gpustat does, though).