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Check for battery percentage if no charge/energy

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Windows Subsystem for Linux abstracts the batteries in a laptop
into a single battery, and only states the percent charge via
/sys/power_supply/battery/capacity.  If dbus is unavailable,
and no charge/energy readings are available for any power supply,
search for the first power supply that has a capacity file, and use it
(and its state) as the battery status.

Tested on a Surface Book 2 running Windows 10 with  Windows
Subsytem for Linux Ubuntu 16.04
This commit is contained in:
Brandon Ewing 2017-11-24 15:03:30 -06:00
parent 5198b50463
commit 6be991c571
1 changed files with 15 additions and 0 deletions
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15
powerline/segments/common/bat.py
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@ -114,6 +114,21 @@ def _fetch_battery_info(pl):
return (energy * 100.0 / energy_full), state return (energy * 100.0 / energy_full), state
return _get_battery_status return _get_battery_status
pl.debug('Not using /sys/class/power_supply as no batteries were found') pl.debug('Not using /sys/class/power_supply as no batteries were found')
else:
pl.debug("Checking for first capacity battery percentage")
for batt in os.listdir('/sys/class/power_supply'):
if os.path.exists('/sys/class/power_supply/{0}/capacity'.format(batt)):
def _get_battery_perc(pl):
state = True
with open('/sys/class/power_supply/{0}/capacity'.format(batt), 'r') as f:
perc = int(f.readline().split()[0])
try:
with open(linux_status_fmt.format(batt), 'r') as f:
state &= (f.readline().strip() != 'Discharging')
except IOError:
state = None
return perc, state
return _get_battery_perc
else: else:
pl.debug('Not using /sys/class/power_supply: no directory') pl.debug('Not using /sys/class/power_supply: no directory')