[awesome] add sensors widget

home/.config/awesome/battery.lua

@@ -1,13 +1,6 @@
 local timer = require("gears.timer")
 local wibox = require("wibox")
-
-local function readfile(command)
-    local file = io.open(command)
-    if not file then return nil end
-    local text = file:read('*all')
-    file:close()
-    return text:gsub("^%s*(.-)%s*$", "%1")
-end
+local utils = require("utils")
 
 local battery_widget = wibox.widget{
     markup = 'U00',
@@ -20,8 +13,8 @@ timer:connect_signal("timeout", function() update() end)
 timer:start()
 
 function update()
-    local percent = readfile("/sys/class/power_supply/BAT1/capacity")
-    local status  = readfile("/sys/class/power_supply/BAT1/status")
+    local percent = utils.readfile("/sys/class/power_supply/BAT1/capacity")
+    local status  = utils.readfile("/sys/class/power_supply/BAT1/status")
 
     if status == "Charging" then
         prefix = "C"

home/.config/awesome/rc.lua

@@ -241,6 +241,7 @@ awful.screen.connect_for_each_screen(function(s)
             layout = wibox.layout.fixed.horizontal,
             wibox.widget.systray(),
             require("battery"),
+            require("sensors"),
             mytextclock,
             s.mylayoutbox,
         },

home/.config/awesome/sensors.lua

@@ -0,0 +1,23 @@
+local timer = require("gears.timer")
+local wibox = require("wibox")
+local utils = require("utils")
+
+local sensors_widget = wibox.widget{
+    markup = '00°C',
+    align = 'center',
+    widget = wibox.widget.textbox
+}
+
+timer = timer({ timeout = 10 })
+timer:connect_signal("timeout", function() update() end)
+timer:start()
+
+function update()
+    local temp = utils.readfile("/sys/class/thermal/thermal_zone1/temp") / 1000
+
+    sensors_widget:set_markup(string.format("%02d", temp) .. "°C")
+end
+
+update()
+
+return wibox.container.margin(sensors_widget, 4)

home/.config/awesome/utils.lua

@@ -0,0 +1,11 @@
+local utils = {}
+
+function utils.readfile(command)
+    local file = io.open(command)
+    if not file then return nil end
+    local text = file:read('*all')
+    file:close()
+    return text:gsub("^%s*(.-)%s*$", "%1")
+end
+
+return utils