update ~/bin

1 files changed, 81 insertions, 0 deletions

diff --git a/bin/statusline b/bin/statusline
new file mode 100755
index 0000000..948e8cb
--- /dev/null
+++ b/bin/statusline
@@ -0,0 +1,81 @@
+#!/usr/bin/env lua5.4
+
+local stdio = require('posix.stdio')
+local poll = require('posix.poll')
+
+function get_output(prog)
+	local f = assert(io.popen(prog))
+	local output = f:read('*a')
+	f:close()
+	return output
+end
+
+function volume()
+	local output = get_output('wpctl get-volume @DEFAULT_AUDIO_SINK@')
+	local muted = output:find('MUTED') ~= nil
+	local _, _, volume = output:find('^Volume: ([0-9.]+)')
+	volume = math.floor(volume * 100)
+
+	local symbol = 'ERROR'
+	if muted then
+		symbol = ' '
+	elseif volume == 0 then
+		symbol = ''
+	elseif volume <= 50 then
+		symbol = ''
+	else
+		symbol = ' '
+	end
+	return string.format('%s %d%%', symbol, volume)
+end
+
+function network()
+	local output = get_output('iwctl station wlan0 get-networks')
+	local _, _, ssid = output:find('>.-  (.-)  ')
+	return ssid and '󰖩  ' .. ssid or '󰖪 '
+end
+
+local current_brightness = 0
+
+function brightness()
+	return ' ' .. current_brightness .. '%'
+end
+
+function battery()
+	local f = io.open('/sys/class/power_supply/BAT0/capacity', 'r')
+	local capacity = tonumber(f:read('*a'))
+	f:close()
+	f = io.open('/sys/class/power_supply/BAT0/status', 'r')
+	local status = f:read('*a')
+	f:close()
+
+	local symbol = 'ERROR'
+	local i = capacity > 0 and (capacity - 1) // 10 or 0
+	if status == 'Discharging\n' then
+		symbol = ({"󰁺", "󰁻", "󰁼", "󰁽", "󰁾", "󰁿", "󰂀", "󰂁", "󰂂", "󰁹"})[i] -- 󰂃
+	elseif status == 'Charging\n' then
+		symbol = ({"󰢜", "󰂆", "󰂇", "󰂈", "󰢝", "󰂉", "󰢞", "󰂊", "󰂋", "󰂅"})[i]
+	elseif status == 'Full\n' then
+		symbol = "󰂄"
+	end
+	return symbol .. ' ' .. capacity .. '%'
+end
+
+function clock()
+	return os.date('  %b %d %H:%M:%S')
+end
+
+local brightness_file = assert(io.popen('brightctl -l'))
+
+while true do
+	if poll.rpoll(stdio.fileno(brightness_file), 1000) > 0 then
+		current_brightness = tonumber(brightness_file:read('l'))
+	end
+	io.write(string.format('all status %s | %s | %s | %s | %s\n',
+		volume(),
+		network(),
+		brightness(),
+		battery(),
+		clock()
+	))
+end