Assumed battery location on Linux systems

[akiva]

This module, and consequently the battery-life module, do not work on all Linux-based systems due to a hard-coded expectation of the location of the battery in the filesystem (ie. /org/freedesktop/UPower/devices/). For instance, my Arch Linux machine uses /sys/class/power_supply/BAT0/, although some systems may still use the now deprecated (as of kernel 2.6.24) /proc for such information.

[kevva]

As always, it's hard to account for all the differences in all Linux distros. One alternative would be to check if the path exists before and then use that. Do you know of any other paths used?

[sindresorhus]

Or even better, is there somewhere on the system we can check for what path to use?

[kevva]

So, I think we should remove the battery_ prefix from the results outputted in https://github.com/kevva/linux-batteries (since that's already implicit), and then change the location to check in here to /sys/class/power_supply/${battery} and fall back to the /proc path. It seems to be the best solution to maintain cross platform compatibility.

I have no Linux system available so any help with this would be greatly appreciated.