i3status/testcases/018-battery-capacity/1/uevent

POWER_SUPPLY_CHARGE_FULL=100
POWER_SUPPLY_CHARGE_NOW=50
Treat zero battery capacity as "not available" (#259) `print_battery_info` computes `batt_info.percentage_remaining` by dividing batt_info.remaining by `full`. If `full` is `0` then the battery remaining will be reported as "inf". Before this, it tries to set `full` to either the design capacity or to the last known good charge. It determines if these values are available by checking whether their fields in `batt_info` are non-negative. As it initialized `batt_info` with values of `-1`, a non-negative value implies that something has provided a value. `slurp_all_batteries` and `add_battery_info` however initialize these fields to zero, so if these functions are called then `batt_info.full_design` will always be used. This means that on systems that don't provide a value for design capacity the percentage remaining will be reported as "inf", unless the user has set `last_full_capacity` to `true` in their `i3status.conf`. This patch changes `print_battery_info` to expect values for the battery capacity to be strictly greater than zero. This seems reasonable as a battery with a capacity of zero isn't useful. An alternative solution would be to change `slurp_all_batteries` and `add_battery_info` to initialize `batt_info` with `-1`, as `print_battery_info` does. This is less appealing as `add_battery_info` is accumulating the values, so using `-1` would introduce off-by-one errors without additional code to avoid them. 2018-01-28 14:37:51 +00:00			`POWER_SUPPLY_CHARGE_FULL=100`
			`POWER_SUPPLY_CHARGE_NOW=50`