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### Author: Dag Wieers <dag$wieers,com>
### Author: Sven-Hendrik Haase <sh@lutzhaase.com>
class dstat_plugin(dstat):
"""
Percentage of remaining battery power as reported by ACPI.
"""
def __init__(self):
self.name = 'battery'
self.type = 'p'
self.width = 4
self.scale = 34
self.battery_type = "none"
def check(self):
if os.path.exists('/proc/acpi/battery/'):
self.battery_type = "procfs"
elif glob.glob('/sys/class/power_supply/BAT*'):
self.battery_type = "sysfs"
else:
raise Exception('No ACPI battery information found.')
def vars(self):
ret = []
if self.battery_type == "procfs":
for battery in os.listdir('/proc/acpi/battery/'):
for line in dopen('/proc/acpi/battery/'+battery+'/state').readlines():
l = line.split()
if len(l) < 2: continue
if l[0] == 'present:' and l[1] == 'yes':
ret.append(battery)
elif self.battery_type == "sysfs":
for battery in glob.glob('/sys/class/power_supply/BAT*'):
for line in dopen(battery+'/present').readlines():
if int(line[0]) == 1:
ret.append(os.path.basename(battery))
ret.sort()
return ret
def nick(self):
return [name.lower() for name in self.vars]
def extract(self):
for battery in self.vars:
if self.battery_type == "procfs":
for line in dopen('/proc/acpi/battery/'+battery+'/info').readlines():
l = line.split()
if len(l) < 4: continue
if l[0] == 'last':
full = int(l[3])
break
for line in dopen('/proc/acpi/battery/'+battery+'/state').readlines():
l = line.split()
if len(l) < 3: continue
if l[0] == 'remaining':
current = int(l[2])
break
if current:
self.val[battery] = current * 100.0 / full
else:
self.val[battery] = -1
elif self.battery_type == "sysfs":
for line in dopen('/sys/class/power_supply/'+battery+'/capacity').readlines():
current = int(line)
break
if current:
self.val[battery] = current
else:
self.val[battery] = -1
# vim:ts=4:sw=4:et
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