Ignore/detect symlink loops in folders plugin

[Ellpeck]

Is your feature request related to a problem? Please describe.
Currently, the folders plugin displays a ? for any folders that have symlink loops in them, like the /var/lib/docker directory, for example.

When enabling the debug flag, the following info is displayed in the log file:

-- DEBUG -- Cannot get folder size (/var/lib/docker). Error: [Errno 40] Symbolic link loop: [...]

Describe the solution you'd like
I think it would make sense if the error described above would be caught in the folders plugin, and the true size of the folder without the symlink loop would be displayed, instead of a ?.

Tools like ncdu already do this, and Glances' file system plugin seems to deal fine with symlinks already.

Thanks so much for this great tool, and thanks for possibly considering my suggestion!! ❤️

[nicolargo]

Hi @Ellpeck

Thanks for the issue report :)

I just push a patch on the develop branch in order to avoid Glances Folders plugin to follow symbolic link. Glances has now the same behavor than ncdu.

Nicolas

[Ellpeck]

Hi! I tried the change and it doesn't appear to error based on symlinks anymore now, thanks so much!!