50 lines
1.3 KiB
Lua
50 lines
1.3 KiB
Lua
-- Provides:
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-- evil::battery
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-- percentage (integer)
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-- evil::charger
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-- plugged (boolean)
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local awful = require("awful")
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local update_interval = 60
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local battery_script = [[
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sh -c "
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upower -i $(upower -e | grep BAT) | grep percentage | awk '{print $2}'
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"
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]]
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-- Subscribe to power supply status changes with acpi_listen
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local charger_script = [[
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sh -c '
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acpi_listen | grep --line-buffered ac_adapter
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'
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]]
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-- Periodically get battery info
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awful.widget.watch(battery_script, update_interval, function(widget, stdout)
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local battery = stdout:gsub("%%", "")
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awesome.emit_signal("evil::battery", tonumber(battery))
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end)
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local emit_charger_info = function()
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awful.spawn.easy_async_with_shell("cat /sys/class/power_supply/*/online", function (out)
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local status = tonumber(out) == 1
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awesome.emit_signal("evil::charger", status)
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end)
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end
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-- Run once to initialize widgets
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emit_charger_info()
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-- Kill old acpi_listen process
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awful.spawn.easy_async_with_shell("ps x | grep \"acpi_listen\" | grep -v grep | awk '{print $1}' | xargs kill", function ()
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-- Update charger status with each line printed
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awful.spawn.with_line_callback(charger_script, {
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stdout = function(_)
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emit_charger_info()
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end
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})
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end)
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