fix more warnings

16 files changed, 87 insertions, 107 deletions

diff --git a/docker-widget/docker.lua b/docker-widget/docker.lua
index 5bd5746..6dd2e61 100644
--- a/docker-widget/docker.lua
+++ b/docker-widget/docker.lua
@@ -19,7 +19,8 @@ local HOME_DIR = os.getenv("HOME")
 local WIDGET_DIR = HOME_DIR .. '/.config/awesome/awesome-wm-widgets/docker-widget'
 local ICONS_DIR = WIDGET_DIR .. '/icons/'
 
-local LIST_CONTAINERS_CMD = [[bash -c "docker container ls -a -s -n %s --format '{{.Names}}::{{.ID}}::{{.Image}}::{{.Status}}::{{.Size}}'"]]
+local LIST_CONTAINERS_CMD = [[bash -c "docker container ls -a -s -n %s]]
+    .. [[ --format '{{.Names}}::{{.ID}}::{{.Image}}::{{.Status}}::{{.Size}}'"]]
 
 --- Utility function to show warning messages
 local function show_warning(message)
@@ -83,9 +84,9 @@ local status_to_icon_name = {
     Paused = ICONS_DIR .. 'pause.svg'
 }
 
-local function worker(args)
+local function worker(user_args)
 
-    local args = args or {}
+    local args = user_args or {}
 
     local icon = args.icon or ICONS_DIR .. 'docker.svg'
     local number_of_containers = args.number_of_containers or -1
@@ -163,10 +164,12 @@ local function worker(args)
                         status_icon:set_opacity(0.2)
                         status_icon:emit_signal('widget::redraw_needed')
 
-                        spawn.easy_async('docker ' .. command .. ' ' .. container['name'], function(stdout, stderr)
+                        spawn.easy_async('docker ' .. command .. ' ' .. container['name'], function()
                             if stderr ~= '' then show_warning(stderr) end
-                            spawn.easy_async(string.format(LIST_CONTAINERS_CMD, number_of_containers), function(stdout, stderr)
-                                rebuild_widget(stdout, stderr) end)
+                            spawn.easy_async(string.format(LIST_CONTAINERS_CMD, number_of_containers),
+                                function(stdout, stderr)
+                                    rebuild_widget(stdout, stderr)
+                                end)
                             end)
                     end) ) )
             else
@@ -250,11 +253,12 @@ local function worker(args)
                 }
                 delete_button:buttons(
                         awful.util.table.join( awful.button({}, 1, function()
-                            awful.spawn.easy_async('docker rm ' .. container['name'], function(stdout, stderr)
-                                if stderr ~= '' then show_warning(stderr) end
-                                spawn.easy_async(string.format(LIST_CONTAINERS_CMD, number_of_containers), function(stdout, stderr)
-                                    rebuild_widget(stdout, stderr) end)
-                                end)
+                            awful.spawn.easy_async('docker rm ' .. container['name'], function(_, rm_stderr)
+                                if rm_stderr ~= '' then show_warning(rm_stderr) end
+                                spawn.easy_async(string.format(LIST_CONTAINERS_CMD, number_of_containers),
+                                    function(lc_stdout, lc_stderr)
+                                        rebuild_widget(lc_stdout, lc_stderr) end)
+                                    end)
                         end)))
 
                 local old_cursor, old_wibox
@@ -350,10 +354,11 @@ local function worker(args)
                     if popup.visible then
                         popup.visible = not popup.visible
                     else
-                        spawn.easy_async(string.format(LIST_CONTAINERS_CMD, number_of_containers), function(stdout, stderr)
-                            rebuild_widget(stdout, stderr)
-                            popup:move_next_to(mouse.current_widget_geometry)
-                        end)
+                        spawn.easy_async(string.format(LIST_CONTAINERS_CMD, number_of_containers), 
+                            function(stdout, stderr)
+                                rebuild_widget(stdout, stderr)
+                                popup:move_next_to(mouse.current_widget_geometry)
+                            end)
                     end
                 end)
         )
diff --git a/experiments/volume/widgets/icon-widget.lua b/experiments/volume/widgets/icon-widget.lua
index 2a20dde..ac4122c 100644
--- a/experiments/volume/widgets/icon-widget.lua
+++ b/experiments/volume/widgets/icon-widget.lua
@@ -15,7 +15,7 @@ function widget.get_widget()
         valign = 'center',
         layout = wibox.container.place,
         set_volume_level = function(self, new_value)
-            local volume_icon_name = ''
+            local volume_icon_name
             if self.is_muted then
                 volume_icon_name = 'audio-volume-muted-symbolic.svg'
             else
diff --git a/fs-widget/fs-widget.lua b/fs-widget/fs-widget.lua
index e920e47..0c12a3a 100644
--- a/fs-widget/fs-widget.lua
+++ b/fs-widget/fs-widget.lua
@@ -6,8 +6,8 @@ local gears = require("gears")
 
 local storage_bar_widget = {}
 
-local function worker(args)
-    local args = args or {}
+local function worker(user_args)
+    local args = user_args or {}
     local mounts = args.mounts or {'/'}
     local timeout = args.timeout or 60
 
diff --git a/gerrit-widget/gerrit.lua b/gerrit-widget/gerrit.lua
index ad5d7a6..cb1a460 100644
--- a/gerrit-widget/gerrit.lua
+++ b/gerrit-widget/gerrit.lua
@@ -27,9 +27,9 @@ local DOWNLOAD_AVATAR_CMD = [[bash -c "curl --create-dirs -o %s %s"]]
 
 local gerrit_widget = {}
 
-local function worker(args)
+local function worker(user_args)
 
-    local args = args or {}
+    local args = user_args or {}
 
     local icon = args.icons or HOME_DIR .. '/.config/awesome/awesome-wm-widgets/gerrit-widget/gerrit_icon.svg'
     local host = args.host or naughty.notify{
diff --git a/github-contributions-widget/github-contributions-widget.lua b/github-contributions-widget/github-contributions-widget.lua
index b462299..5a45fcb 100644
--- a/github-contributions-widget/github-contributions-widget.lua
+++ b/github-contributions-widget/github-contributions-widget.lua
@@ -13,7 +13,8 @@ local naughty = require("naughty")
 local wibox = require("wibox")
 local widget_themes = require("awesome-wm-widgets.github-contributions-widget.themes")
 
-local GET_CONTRIBUTIONS_CMD = [[bash -c "curl -s https://github-contributions.now.sh/api/v1/%s | jq -r '[.contributions[] | select ( .date | strptime(\"%%Y-%%m-%%d\") | mktime < now)][:%s]| .[].color'"]]
+local GET_CONTRIBUTIONS_CMD = [[bash -c "curl -s https://github-contributions.now.sh/api/v1/%s]]
+    .. [[ | jq -r '[.contributions[] | select ( .date | strptime(\"%%Y-%%m-%%d\") | mktime < now)][:%s]| .[].color'"]]
 
 local github_contributions_widget = wibox.widget{
     reflection = {
@@ -30,9 +31,9 @@ local function show_warning(message)
         text = message}
 end
 
-local function worker(args)
+local function worker(user_args)
 
-    local args = args or {}
+    local args = user_args or {}
 
     local username = args.username or 'streetturtle'
     local days = args.days or 365
@@ -62,10 +63,10 @@ local function worker(args)
         local r, g, b = hex2rgb(color)
 
         return wibox.widget{
-            fit = function(self, context, width, height)
+            fit = function()
                 return 3, 3
             end,
-            draw = function(self, context, cr, width, height)
+            draw = function(_, _, cr, _, _)
                 cr:set_source_rgb(r/255, g/255, b/255)
                 cr:rectangle(0, 0, with_border and 2 or 3, with_border and 2 or 3)
                 cr:fill()
@@ -77,11 +78,11 @@ local function worker(args)
     local col = {layout = wibox.layout.fixed.vertical}
     local row = {layout = wibox.layout.fixed.horizontal}
     local a = 5 - os.date('%w')
-    for i = 0, a do
+    for _ = 0, a do
         table.insert(col, get_square(color_of_empty_cells))
     end
 
-    local update_widget = function(widget, stdout, _, _, _)
+    local update_widget = function(_, stdout, _, _, _)
         for colors in stdout:gmatch("[^\r\n]+") do
             if a%7 == 0 then
                 table.insert(row, col)
@@ -100,7 +101,7 @@ local function worker(args)
     end
 
     awful.spawn.easy_async(string.format(GET_CONTRIBUTIONS_CMD, username, days),
-        function(stdout, stderr)
+        function(stdout)
             update_widget(github_contributions_widget, stdout)
         end)
 
diff --git a/gitlab-widget/gitlab.lua b/gitlab-widget/gitlab.lua
index 3482347..2ab65b6 100644
--- a/gitlab-widget/gitlab.lua
+++ b/gitlab-widget/gitlab.lua
@@ -21,8 +21,9 @@ local color = require("gears.color")
 
 local HOME_DIR = os.getenv("HOME")
 local WIDGET_DIR = HOME_DIR .. '/.config/awesome/awesome-wm-widgets/gitlab-widget/'
-local GET_PRS_CMD= [[bash -c "curl -s --connect-timeout 5 --show-error --header 'PRIVATE-TOKEN: %s' '%s/api/v4/merge_requests?state=opened'"]]
-local DOWNLOAD_AVATAR_CMD = [[bash -c "curl -L --create-dirs -o %s/.cache/awmw/gitlab-widget/avatars/%s %s"]]
+local GET_PRS_CMD= [[sh -c "curl -s --connect-timeout 5 --show-error --header 'PRIVATE-TOKEN: %s']]
+    ..[[ '%s/api/v4/merge_requests?state=opened'"]]
+local DOWNLOAD_AVATAR_CMD = [[sh -c "curl -L --create-dirs -o %s/.cache/awmw/gitlab-widget/avatars/%s %s"]]
 
 local gitlab_widget = wibox.widget {
     {
@@ -33,7 +34,7 @@ local gitlab_widget = wibox.widget {
             },
             {
                 id = 'error_marker',
-                draw = function(self, context, cr, width, height)
+                draw = function(_, _, cr, _, height)
                     cr:set_source(color(beautiful.fg_urgent))
                     cr:arc(height/4, height/4, height/4, 0, math.pi*2)
                     cr:fill()
@@ -96,7 +97,7 @@ local popup = awful.popup{
 --- Converts string representation of date (2020-06-02T11:25:27Z) to date
 local function parse_date(date_str)
     local pattern = "(%d+)%-(%d+)%-(%d+)T(%d+):(%d+):(%d+)%Z"
-    local y, m, d, h, min, sec, mil = date_str:match(pattern)
+    local y, m, d, h, min, sec, _ = date_str:match(pattern)
 
     return os.time{year = y, month = m, day = d, hour = h, min = min, sec = sec}
 end
@@ -134,9 +135,9 @@ local tooltip = awful.tooltip {
     preferred_positions = {'bottom'},
  }
 
-local function worker(args)
+local function worker(user_args)
 
-    local args = args or {}
+    local args = user_args or {}
 
     local icon = args.icon or WIDGET_DIR .. '/icons/gitlab-icon.svg'
     local api_token = args.api_token or show_warning('API Token is not set')
@@ -318,7 +319,9 @@ local function worker(args)
                         DOWNLOAD_AVATAR_CMD,
                         HOME_DIR,
                         pr.author.id,
-                        pr.author.avatar_url), function() row:get_children_by_id('avatar')[1]:set_image(path_to_avatar) end)
+                        pr.author.avatar_url), function()
+                            row:get_children_by_id('avatar')[1]:set_image(path_to_avatar)
+                        end)
             end
 
             row:connect_signal("mouse::enter", function(c) c:set_bg(beautiful.bg_focus) end)
@@ -342,25 +345,24 @@ local function worker(args)
             )
 
             local old_cursor, old_wibox
-            row:get_children_by_id('title')[1]:connect_signal("mouse::enter", function(c)
+            row:get_children_by_id('title')[1]:connect_signal("mouse::enter", function()
                 local wb = mouse.current_wibox
                 old_cursor, old_wibox = wb.cursor, wb
                 wb.cursor = "hand1"
             end)
-            row:get_children_by_id('title')[1]:connect_signal("mouse::leave", function(c)
+            row:get_children_by_id('title')[1]:connect_signal("mouse::leave", function()
                 if old_wibox then
                     old_wibox.cursor = old_cursor
                     old_wibox = nil
                 end
             end)
 
-            local old_cursor, old_wibox
-            row:get_children_by_id('avatar')[1]:connect_signal("mouse::enter", function(c)
+            row:get_children_by_id('avatar')[1]:connect_signal("mouse::enter", function()
                 local wb = mouse.current_wibox
                 old_cursor, old_wibox = wb.cursor, wb
                 wb.cursor = "hand1"
             end)
-            row:get_children_by_id('avatar')[1]:connect_signal("mouse::leave", function(c)
+            row:get_children_by_id('avatar')[1]:connect_signal("mouse::leave", function()
                 if old_wibox then
                     old_wibox.cursor = old_cursor
                     old_wibox = nil
diff --git a/logout-widget/logout.lua b/logout-widget/logout.lua
index 9fcc9fe..512ac23 100644
--- a/logout-widget/logout.lua
+++ b/logout-widget/logout.lua
@@ -54,8 +54,8 @@ local function create_button(icon_name, action_name, color, onclick, icon_size,
             capi.keygrabber.stop()
         end
     }
-    button:connect_signal("mouse::enter", function(c) action:set_text(action_name) end)
-    button:connect_signal("mouse::leave", function(c) action:set_text(' ') end)
+    button:connect_signal("mouse::enter", function() action:set_text(action_name) end)
+    button:connect_signal("mouse::leave", function() action:set_text(' ') end)
     return button
 end
 
@@ -76,7 +76,8 @@ local function launch(args)
 
     w:set_bg(bg_color)
     if #phrases > 0 then
-        phrase_widget:set_markup('<span color="'.. text_color .. '" size="20000">' .. phrases[ math.random( #phrases ) ] .. '</span>')
+        phrase_widget:set_markup(
+            '<span color="'.. text_color .. '" size="20000">' .. phrases[ math.random( #phrases ) ] .. '</span>')
     end
 
     w:setup {
diff --git a/mpdarc-widget/mpdarc.lua b/mpdarc-widget/mpdarc.lua
index d70e6ee..f1d6930 100644
--- a/mpdarc-widget/mpdarc.lua
+++ b/mpdarc-widget/mpdarc.lua
@@ -25,7 +25,7 @@ local PAUSE_ICON_NAME = PATH_TO_ICONS .. "/actions/24/player_pause.png"
 local PLAY_ICON_NAME = PATH_TO_ICONS .. "/actions/24/player_play.png"
 local STOP_ICON_NAME = PATH_TO_ICONS .. "/actions/24/player_stop.png"
 
-local icon = wibox.widget { 
+local icon = wibox.widget {
         id = "icon",
         widget = wibox.widget.imagebox,
         image = PLAY_ICON_NAME
@@ -58,7 +58,7 @@ local update_graphic = function(widget, stdout, _, _, _)
     stdout = string.gsub(stdout, "\n", "")
     local mpdpercent = string.match(stdout, "(%d%d)%%")
     local mpdstatus = string.match(stdout, "%[(%a+)%]")
-    if mpdstatus == "playing" then 
+    if mpdstatus == "playing" then
       icon.image = PLAY_ICON_NAME
       widget.colors = { beautiful.widget_main_color }
       widget.value = tonumber((100-mpdpercent)/100)
@@ -93,7 +93,7 @@ mpdarc:connect_signal("button::press", function(_, _, _, button)
 end)
 
 local notification
-function show_MPD_status()
+local function show_MPD_status()
     spawn.easy_async(GET_MPD_CMD,
         function(stdout, _, _, _)
             notification = naughty.notify {
diff --git a/mpris-widget/init.lua b/mpris-widget/init.lua
index 5af85b4..4651b45 100644
--- a/mpris-widget/init.lua
+++ b/mpris-widget/init.lua
@@ -29,7 +29,7 @@ local LIBRARY_ICON_NAME = PATH_TO_ICONS .. "/actions/24/music-library.png"
 
 local mpdarc_widget = {}
 
-local function worker(args)
+local function worker()
 
     -- retriving song info
     local current_song, artist, mpdstatus, art, artUrl
@@ -123,7 +123,7 @@ local function worker(args)
 
     local notification
     local function show_MPD_status()
-        spawn.easy_async(GET_MPD_CMD, function(stdout, _, _, _)
+        spawn.easy_async(GET_MPD_CMD, function()
             notification = naughty.notification {
                 margin = 10,
                 timeout = 5,
diff --git a/net-speed-widget/net-speed.lua b/net-speed-widget/net-speed.lua
index 846898c..409e03d 100644
--- a/net-speed-widget/net-speed.lua
+++ b/net-speed-widget/net-speed.lua
@@ -8,7 +8,6 @@
 -- @copyright 2020 Pavel Makhov
 -------------------------------------------------
 
-local naughty = require("naughty")
 local watch = require("awful.widget.watch")
 local wibox = require("wibox")
 
@@ -16,14 +15,6 @@ local HOME_DIR = os.getenv("HOME")
 local WIDGET_DIR = HOME_DIR .. '/.config/awesome/awesome-wm-widgets/net-speed-widget/'
 local ICONS_DIR = WIDGET_DIR .. 'icons/'
 
-local function show_warning(message)
-    naughty.notify {
-        preset = naughty.config.presets.critical,
-        title = 'Net Speed Widget',
-        text = message
-    }
-end
-
 local net_speed_widget = wibox.widget {
     {
         id = 'rx_speed',
@@ -91,21 +82,21 @@ local function split(string_to_split, separator)
     return t
 end
 
-local function worker(args)
+local function worker(user_args)
 
-    local args = args or {}
+    local args = user_args or {}
 
     local interface = args.interface or '*'
     local timeout = args.timeout or 1
 
-    local update_widget = function(widget, stdout, stderr)
+    local update_widget = function(widget, stdout)
 
         local cur_vals = split(stdout, '\r\n')
 
         local cur_rx = 0
         local cur_tx = 0
 
-        for i, v in ipairs(cur_vals) do
+        for i, _ in ipairs(cur_vals) do
             if i%2 == 1 then cur_rx = cur_rx + cur_vals[i] end
             if i%2 == 0 then cur_tx = cur_tx + cur_vals[i] end
         end
@@ -120,7 +111,8 @@ local function worker(args)
         prev_tx = cur_tx
     end
 
-    watch(string.format([[bash -c "cat /sys/class/net/%s/statistics/*_bytes"]], interface), timeout, update_widget, net_speed_widget)
+    watch(string.format([[bash -c "cat /sys/class/net/%s/statistics/*_bytes"]], interface),
+        timeout, update_widget, net_speed_widget)
 
     return net_speed_widget
 
diff --git a/pomodoroarc-widget/pomodoroarc.lua b/pomodoroarc-widget/pomodoroarc.lua
index dab8c3a..497a208 100644
--- a/pomodoroarc-widget/pomodoroarc.lua
+++ b/pomodoroarc-widget/pomodoroarc.lua
@@ -92,7 +92,7 @@ text.font      = "Inconsolata Medium 13"
           widget.value = tonumber(pomodoro/(25*60))
 text.font      = "Inconsolata Medium 13"
           text.text = "PW"
-        elseif workbreak == "B" then 
+        elseif workbreak == "B" then
           widget.colors = { beautiful.widget_yellow }
           widget.value = tonumber(pomodoro/(5*60))
 text.font      = "Inconsolata Medium 13"
@@ -114,7 +114,7 @@ pomodoroarc:connect_signal("button::press", function(_, _, _, button)
 end)
 
 local notification
-function show_pomodoro_status()
+local function show_pomodoro_status()
     spawn.easy_async(GET_pomodoro_CMD,
         function(stdout, _, _, _)
             notification = naughty.notify {
diff --git a/ram-widget/ram-widget.lua b/ram-widget/ram-widget.lua
index 66863f5..3ef5d6b 100644
--- a/ram-widget/ram-widget.lua
+++ b/ram-widget/ram-widget.lua
@@ -8,8 +8,8 @@ local wibox = require("wibox")
 local ramgraph_widget = {}
 
 
-local function worker(args)
-    local args = args or {}
+local function worker(user_args)
+    local args = user_args or {}
     local timeout = args.timeout or 1
 
     --- Main ram widget shown on wibar
@@ -43,6 +43,7 @@ local function worker(args)
        offset = { y = 5 },
     }
 
+    --luacheck:ignore 231
     local total, used, free, shared, buff_cache, available, total_swap, used_swap, free_swap
 
     local function getPercentage(value)
@@ -50,7 +51,7 @@ local function worker(args)
     end
 
     watch('bash -c "LANGUAGE=en_US.UTF-8 free | grep -z Mem.*Swap.*"', timeout,
-        function(widget, stdout, stderr, exitreason, exitcode)
+        function(widget, stdout)
             total, used, free, shared, buff_cache, available, total_swap, used_swap, free_swap =
                 stdout:match('(%d+)%s*(%d+)%s*(%d+)%s*(%d+)%s*(%d+)%s*(%d+)%s*Swap:%s*(%d+)%s*(%d+)%s*(%d+)')
 
@@ -75,7 +76,7 @@ local function worker(args)
                     {'free ' .. getPercentage(free + free_swap), free + free_swap},
                     {'buff_cache ' .. getPercentage(buff_cache), buff_cache}
                 }
-                
+
                 if popup.visible then
                    popup.visible = not popup.visible
                 else
diff --git a/rhythmbox-widget/rhythmbox.lua b/rhythmbox-widget/rhythmbox.lua
deleted file mode 100644
index 1287587..0000000
--- a/rhythmbox-widget/rhythmbox.lua
+++ /dev/null
@@ -1,16 +0,0 @@
-local wibox = require("wibox")
-local awful = require("awful")
-local watch = require("awful.widget.watch")
-
-rhythmbox_widget = wibox.widget.textbox()
-rhythmbox_widget:set_font('Play 9')
-
-rhythmbox_icon = wibox.widget.imagebox()
-rhythmbox_icon:set_image("/usr/share/icons/Arc/devices/22/audio-speakers.png")
-
-watch(
-    "rhythmbox-client --no-start --print-playing", 1,
-    function(widget, stdout, stderr, exitreason, exitcode)
-        rhythmbox_widget:set_text(stdout)
-    end
-)
\ No newline at end of file
diff --git a/run-shell-3/run-shell.lua b/run-shell-3/run-shell.lua
index 51feaf4..0015232 100644
--- a/run-shell-3/run-shell.lua
+++ b/run-shell-3/run-shell.lua
@@ -8,10 +8,6 @@
 -- @copyright 2019 Pavel Makhov
 -------------------------------------------------
 
-local capi = {
-    screen = screen,
-    client = client,
-}
 local awful = require("awful")
 local gfs = require("gears.filesystem")
 local wibox = require("wibox")
@@ -26,8 +22,10 @@ local widget = {}
 function widget.new()
     local widget_instance = {
         _cached_wiboxes = {},
-        _cmd_pixelate = [[bash -c 'ffmpeg -loglevel panic -f x11grab -video_size 1920x1060 -y -i :0.0+%s,20 -vf frei0r=pixeliz0r -vframes 1 /tmp/i3lock-%s.png ; echo done']],
-        _cmd_blur = [[bash -c 'ffmpeg -loglevel panic -f x11grab -video_size 1920x1060 -y -i :0.0+%s,20 -filter_complex "boxblur=9" -vframes 1 /tmp/i3lock-%s.png ; echo done']]
+        _cmd_pixelate = [[sh -c 'ffmpeg -loglevel panic -f x11grab -video_size 1920x1060 -y -i :0.0+%s,20 -vf ]]
+            .. [[frei0r=pixeliz0r -vframes 1 /tmp/i3lock-%s.png ; echo done']],
+        _cmd_blur = [[sh -c 'ffmpeg -loglevel panic -f x11grab -video_size 1920x1060 -y -i :0.0+%s,20 ]]
+            .. [[-filter_complex "boxblur=9" -vframes 1 /tmp/i3lock-%s.png ; echo done']]
     }
 
     function widget_instance:_create_wibox()
@@ -74,21 +72,18 @@ function widget.new()
         return w
     end
 
-    function widget_instance:launch(s, c)
-        c = c or capi.client.focus
-        s = mouse.screen
-        --        naughty.notify { text = 'screen ' .. s.index }
+    function widget_instance:launch()
+        local s = mouse.screen
         if not self._cached_wiboxes[s] then
             self._cached_wiboxes[s] = {}
-            --            naughty.notify { text = 'nope' }
         end
         if not self._cached_wiboxes[s][1] then
             self._cached_wiboxes[s][1] = self:_create_wibox()
-            --            naughty.notify { text = 'nope' }
         end
         local w = self._cached_wiboxes[s][1]
         local rnd = math.random()
-        awful.spawn.with_line_callback(string.format(self._cmd_blur, tostring(awful.screen.focused().geometry.x), rnd), {
+        awful.spawn.with_line_callback(
+            string.format(self._cmd_blur, tostring(awful.screen.focused().geometry.x), rnd), {
             stdout = function()
                 w.visible = true
                 w.bgimage = '/tmp/i3lock-' .. rnd ..'.png'
diff --git a/run-shell/run-shell.lua b/run-shell/run-shell.lua
index 2fda71b..a43c4d5 100644
--- a/run-shell/run-shell.lua
+++ b/run-shell/run-shell.lua
@@ -45,6 +45,7 @@ function widget.new()
             widget = wibox.widget.imagebox,
             resize = false,
             opacity = 0.2,
+            --luacheck:ignore 432
             set_hover = function(self, opacity)
                 self.opacity = opacity
                 self.image = '/usr/share/icons/Arc/actions/symbolic/system-shutdown-symbolic.svg'
diff --git a/todo-widget/todo.lua b/todo-widget/todo.lua
index 14e3dc2..74b3d1b 100644
--- a/todo-widget/todo.lua
+++ b/todo-widget/todo.lua
@@ -23,7 +23,7 @@ local GET_TODO_ITEMS = 'bash -c "cat ' .. STORAGE .. '"'
 
 local rows  = { layout = wibox.layout.fixed.vertical }
 local todo_widget = {}
-
+local update_widget
 todo_widget.widget = wibox.widget {
     {
         {
@@ -115,7 +115,7 @@ add_button:connect_signal("button::press", function()
                 local res = json.decode(stdout)
                 table.insert(res.todo_items, {todo_item = input_text, status = false})
                 spawn.easy_async_with_shell("echo '" .. json.encode(res) .. "' > " .. STORAGE, function()
-                    spawn.easy_async(GET_TODO_ITEMS, function(stdout) update_widget(stdout) end)
+                    spawn.easy_async(GET_TODO_ITEMS, function(items) update_widget(items) end)
                 end)
             end)
         end
@@ -202,7 +202,7 @@ local function worker(user_args)
             trash_button:connect_signal("button::press", function()
                 table.remove(result.todo_items, i)
                 spawn.easy_async_with_shell("printf '" .. json.encode(result) .. "' > " .. STORAGE, function ()
-                    spawn.easy_async(GET_TODO_ITEMS, function(stdout) update_widget(stdout) end)
+                    spawn.easy_async(GET_TODO_ITEMS, function(items) update_widget(items) end)
                 end)
             end)
 
@@ -218,7 +218,7 @@ local function worker(user_args)
                 result.todo_items[i] = result.todo_items[i-1]
                 result.todo_items[i-1] = temp
                 spawn.easy_async_with_shell("printf '" .. json.encode(result) .. "' > " .. STORAGE, function ()
-                    spawn.easy_async(GET_TODO_ITEMS, function(stdout) update_widget(stdout) end)
+                    spawn.easy_async(GET_TODO_ITEMS, function(items) update_widget(items) end)
                 end)
             end)
 
@@ -233,7 +233,7 @@ local function worker(user_args)
                 result.todo_items[i] = result.todo_items[i+1]
                 result.todo_items[i+1] = temp
                 spawn.easy_async_with_shell("printf '" .. json.encode(result) .. "' > " .. STORAGE, function ()
-                    spawn.easy_async(GET_TODO_ITEMS, function(stdout) update_widget(stdout) end)
+                    spawn.easy_async(GET_TODO_ITEMS, function(items) update_widget(items) end)
                 end)
             end)
 
@@ -242,13 +242,11 @@ local function worker(user_args)
                 layout = wibox.layout.fixed.vertical
             }
 
-            if 1 == #result.todo_items then
-                -- one item, no need in arrows
-            elseif i == 1 then
+            if i == 1 and #result.todo_items > 1 then
                 table.insert(move_buttons, move_down)
-            elseif i == #result.todo_items then
+            elseif i == #result.todo_items and #result.todo_items > 1 then
                 table.insert(move_buttons, move_up)
-            else
+            elseif #result.todo_items > 1 then
                 table.insert(move_buttons, move_up)
                 table.insert(move_buttons, move_down)
             end