Move v4 compatible widget in this repo

battery-widget-v4/battery.lua

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+local wibox = require("wibox")
+local awful = require("awful")
+local naughty = require("naughty")
+
+
+batteryIcon = wibox.widget {
+widget = wibox.widget.imagebox
+}
+
+function refresh_icon()
+  awful.spawn.easy_async([[bash -c 'acpi | cut -d, -f 2 | egrep -o "[0-9]{1,3}"']], 
+    function(stdout, stderr, reason, exit_code)   
+      local batteryType
+      local charge = tonumber(stdout)
+      if (charge >= 0 and charge < 20) then 
+        batteryType="battery-empty"
+        show_battery_warning()
+        elseif (charge >= 20 and charge < 40) then batteryType="battery-caution"
+        elseif (charge >= 40 and charge < 60) then batteryType="battery-low"
+        elseif (charge >= 60 and charge < 80) then batteryType="battery-good"
+        elseif (charge >= 80 and charge <= 100) then batteryType="battery-full"
+      end
+      batteryIcon.image = "/usr/share/icons/Arc-Icons/panel/22/" .. batteryType .. ".svg"
+    end)
+end
+
+function show_battery_status()
+  awful.spawn.easy_async([[bash -c 'acpi | cut -d, -f 2,3']],
+    function(stdout, stderr, reason, exit_code)   
+      naughty.notify{
+      text = stdout,
+      title = "Battery status",
+      timeout = 5, hover_timeout = 0.5,
+      width = 200,
+    }   
+  end
+  )
+end
+
+function show_battery_warning()
+  naughty.notify{
+  text = "Huston, we have a problem",
+  title = "Battery is dying",
+  timeout = 5, hover_timeout = 0.5,
+  position = "bottom_right",
+  bg = "#F06060",
+  fg = "#EEE9EF",
+  width = 200,
+}
+end
+
+-- timer to refresh icon
+local batteryWidgetTimer = timer({ timeout = 60 })  
+batteryWidgetTimer:connect_signal("timeout",  function() refresh_icon() end)
+batteryWidgetTimer:start()
+batteryWidgetTimer:emit_signal("timeout")
+
+-- popup with battery info
+batteryIcon:connect_signal("mouse::enter", function() show_battery_status() end)

spotify-widget-v4/spotify.lua

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+local wibox = require("wibox")
+local awful = require("awful")
+
+spotify_widget = wibox.widget.textbox()
+spotify_widget:set_font('Play 9')
+
+function updateSpotifyWidget(widget)
+    awful.spawn.easy_async([[bash -c 'sp current-oneline']],
+    function(stdout, stderr, reason, exit_code)
+        widget:set_text(stdout)
+    end)
+end
+
+spotify_timer = timer ({timeout = 10})
+spotify_timer:connect_signal ("timeout", function() updateSpotifyWidget(spotify_widget) end) 
+spotify_timer:start()
+
+spotify_timer:emit_signal("timeout")

volume-widget-v4/volume.lua

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+local wibox = require("wibox")
+local awful = require("awful")
+
+function update_volume()
+	awful.spawn.easy_async([[bash -c 'amixer -D pulse sget Master']], 
+		function(stdout, stderr, reason, exit_code)   
+			local volume = string.match(stdout, "(%d?%d?%d)%%")
+			volume = tonumber(string.format("% 3d", volume))
+			local volume_icon_name
+
+			if (volume >= 0 and volume < 20) then volume_icon_name="audio-volume-none-panel"
+			elseif (volume >= 20 and volume < 40) then volume_icon_name="audio-volume-zero-panel"
+			elseif (volume >= 40 and volume < 60) then volume_icon_name="audio-volume-low-panel"
+			elseif (volume >= 60 and volume < 80) then volume_icon_name="audio-volume-medium-panel"
+			elseif (volume >= 80 and volume <= 100) then volume_icon_name="audio-volume-high-panel"
+			end
+		volume_icon:set_image("/usr/share/icons/Arc-Icons/panel/22/" .. volume_icon_name .. ".svg")
+	end)
+end
+
+
+volume_icon = wibox.widget.imagebox()
+
+mytimer = timer({ timeout = 0.2 })
+mytimer:connect_signal("timeout", function () update_volume() end)
+mytimer:start()