diff --git a/.luacheckrc b/.luacheckrc
index 44ecc5ee..8641cd6c 100644
--- a/.luacheckrc
+++ b/.luacheckrc
@@ -13,11 +13,13 @@ files["awesomerc.lua"].allow_defined_top = true
 -- This file itself
 files[".luacheckrc"].ignore = {"111", "112", "131"}
 
+-- Theme files, ignore max line length
+files["themes/*"].ignore = {"631"}
+
 -- Global objects defined by the C code
 read_globals = {
     "awesome",
     "button",
-    "client",
     "dbus",
     "drawable",
     "drawin",
@@ -28,6 +30,8 @@ read_globals = {
     "selection",
     "tag",
     "window",
+    "table.unpack",
+    "math.atan2",
 }
 
 -- screen may not be read-only, because newer luacheck versions complain about
diff --git a/lib/awful/completion.lua b/lib/awful/completion.lua
index 13d1c55d..2777cd43 100644
--- a/lib/awful/completion.lua
+++ b/lib/awful/completion.lua
@@ -106,7 +106,8 @@ function completion.shell(command, cur_pos, ncomp, shell)
             -- check commands, aliases, builtins, functions and reswords
             shell_cmd = "/usr/bin/env zsh -c 'local -a res; "..
             "res=( "..
-            "\"${(k)commands[@]}\" \"${(k)aliases[@]}\" \"${(k)builtins[@]}\" \"${(k)functions[@]}\" \"${(k)reswords[@]}\" "..
+            "\"${(k)commands[@]}\" \"${(k)aliases[@]}\" \"${(k)builtins[@]}\" \"${(k)functions[@]}\" "..
+            "\"${(k)reswords[@]}\" "..
             "${PWD}/*(:t)"..
             "); "..
             "print -ln -- ${(M)res[@]:#" .. string.format('%q', words[cword_index]) .. "*}'"
diff --git a/lib/awful/layout/suit/tile.lua b/lib/awful/layout/suit/tile.lua
index 8a918ab6..cc0cfd2c 100644
--- a/lib/awful/layout/suit/tile.lua
+++ b/lib/awful/layout/suit/tile.lua
@@ -117,7 +117,8 @@ local function mouse_resize_handler(c, _, _, _, orientation)
 
                                       local geom = c:geometry()
 
-                                      -- we have to make sure we're not on the last visible client where we have to use different settings.
+                                      -- we have to make sure we're not on the last visible
+                                      -- client where we have to use different settings.
                                       local wfact
                                       local wfact_x, wfact_y
                                       if (geom.y+geom.height+15) > (wa.y+wa.height) then
@@ -265,7 +266,8 @@ local function do_tile(param, orientation)
             if not data[0] then
                 data[0] = {}
             end
-            coord = coord + tile_group(gs, cls, wa, orientation, data[0], {first=1, last=nmaster, coord = coord, size = size})
+            coord = coord + tile_group(gs, cls, wa, orientation, data[0],
+                                       {first=1, last=nmaster, coord = coord, size = size})
         end
 
         if not place_master and nother > 0 then
@@ -285,7 +287,8 @@ local function do_tile(param, orientation)
                 if not data[i] then
                     data[i] = {}
                 end
-                coord = coord + tile_group(gs, cls, wa, orientation, data[i], { first = first, last = last, coord = coord, size = size })
+                coord = coord + tile_group(gs, cls, wa, orientation, data[i],
+                                           { first = first, last = last, coord = coord, size = size })
             end
         end
         place_master = not place_master
diff --git a/lib/awful/menu.lua b/lib/awful/menu.lua
index dcbc5fac..c04b6a2b 100644
--- a/lib/awful/menu.lua
+++ b/lib/awful/menu.lua
@@ -632,8 +632,10 @@ end
 --- Create a menu popup.
 -- @param args Table containing the menu informations.
 --
--- * Key items: Table containing the displayed items. Each element is a table by default (when element 'new' is awful.menu.entry) containing: item name, triggered action, submenu table or function, item icon (optional).
--- * Keys theme.[fg|bg]_[focus|normal], theme.border_color, theme.border_width, theme.submenu_icon, theme.height and theme.width override the default display for your menu and/or of your menu entry, each of them are optional.
+-- * Key items: Table containing the displayed items. Each element is a table by default (when element 'new' is
+--   awful.menu.entry) containing: item name, triggered action, submenu table or function, item icon (optional).
+-- * Keys theme.[fg|bg]_[focus|normal], theme.border_color, theme.border_width, theme.submenu_icon, theme.height
+--   and theme.width override the default display for your menu and/or of your menu entry, each of them are optional.
 -- * Key auto_expand controls the submenu auto expand behaviour by setting it to true (default) or false.
 --
 -- @param parent Specify the parent menu if we want to open a submenu, this value should never be set by the user.
diff --git a/lib/awful/spawn.lua b/lib/awful/spawn.lua
index bcfb68dc..c713b370 100644
--- a/lib/awful/spawn.lua
+++ b/lib/awful/spawn.lua
@@ -1,3 +1,5 @@
+--luacheck: no max line length
+
 ---------------------------------------------------------------------------
 --- Spawning of programs.
 --
diff --git a/lib/awful/titlebar.lua b/lib/awful/titlebar.lua
index 36863576..14820663 100644
--- a/lib/awful/titlebar.lua
+++ b/lib/awful/titlebar.lua
@@ -471,7 +471,9 @@ end
 --- Create a new minimize button for a client.
 -- @param c The client for which the button is wanted.
 function titlebar.widget.minimizebutton(c)
-    local widget = titlebar.widget.button(c, "minimize", function() return "" end, function(cl) cl.minimized = not cl.minimized end)
+    local widget = titlebar.widget.button(c, "minimize",
+                                          function() return "" end,
+                                          function(cl) cl.minimized = not cl.minimized end)
     c:connect_signal("property::minimized", widget.update)
     return widget
 end
@@ -485,7 +487,9 @@ end
 --- Create a new ontop button for a client.
 -- @param c The client for which the button is wanted.
 function titlebar.widget.ontopbutton(c)
-    local widget = titlebar.widget.button(c, "ontop", function(cl) return cl.ontop end, function(cl, state) cl.ontop = not state end)
+    local widget = titlebar.widget.button(c, "ontop",
+                                          function(cl) return cl.ontop end,
+                                          function(cl, state) cl.ontop = not state end)
     c:connect_signal("property::ontop", widget.update)
     return widget
 end
@@ -493,7 +497,9 @@ end
 --- Create a new sticky button for a client.
 -- @param c The client for which the button is wanted.
 function titlebar.widget.stickybutton(c)
-    local widget = titlebar.widget.button(c, "sticky", function(cl) return cl.sticky end, function(cl, state) cl.sticky = not state end)
+    local widget = titlebar.widget.button(c, "sticky",
+                                          function(cl) return cl.sticky end,
+                                          function(cl, state) cl.sticky = not state end)
     c:connect_signal("property::sticky", widget.update)
     return widget
 end
diff --git a/lib/awful/util.lua b/lib/awful/util.lua
index d3e1b9d7..3f237b75 100644
--- a/lib/awful/util.lua
+++ b/lib/awful/util.lua
@@ -145,7 +145,8 @@ function util.escape(text)
     return text and text:gsub("['&<>\"]", xml_entity_names) or nil
 end
 
-local xml_entity_chars = { lt = "<", gt = ">", nbsp = " ", quot = "\"", apos = "'", ndash = "-", mdash = "-", amp = "&" };
+local xml_entity_chars = { lt = "<", gt = ">", nbsp = " ", quot = "\"", apos = "'", ndash = "-", mdash = "-",
+    amp = "&" };
 --- Unescape a string from entities.
 -- @param text Text to unescape.
 -- @return Unescaped text.
diff --git a/lib/awful/widget/button.lua b/lib/awful/widget/button.lua
index 4e6021f8..a8b8342e 100644
--- a/lib/awful/widget/button.lua
+++ b/lib/awful/widget/button.lua
@@ -45,7 +45,8 @@ function button.new(args)
         orig_set_image(self, img_release)
     end
     w:set_image(args.image)
-    w:buttons(abutton({}, 1, function () orig_set_image(w, img_press) end, function () orig_set_image(w, img_release) end))
+    w:buttons(abutton({}, 1, function () orig_set_image(w, img_press) end,
+                             function () orig_set_image(w, img_release) end))
 
     w:connect_signal("mouse::leave", function(self) orig_set_image(self, img_release) end)
 
diff --git a/lib/awful/widget/tasklist.lua b/lib/awful/widget/tasklist.lua
index 304494df..8ccefdf4 100644
--- a/lib/awful/widget/tasklist.lua
+++ b/lib/awful/widget/tasklist.lua
@@ -210,7 +210,8 @@ local function tasklist_label(c, args, tb)
     local bg_focus = args.bg_focus or theme.tasklist_bg_focus or theme.bg_focus or bg_normal
     local fg_urgent = util.ensure_pango_color(args.fg_urgent or theme.tasklist_fg_urgent or theme.fg_urgent, fg_normal)
     local bg_urgent = args.bg_urgent or theme.tasklist_bg_urgent or theme.bg_urgent or bg_normal
-    local fg_minimize = util.ensure_pango_color(args.fg_minimize or theme.tasklist_fg_minimize or theme.fg_minimize, fg_normal)
+    local fg_minimize = util.ensure_pango_color(args.fg_minimize or theme.tasklist_fg_minimize or theme.fg_minimize,
+                                                fg_normal)
     local bg_minimize = args.bg_minimize or theme.tasklist_bg_minimize or theme.bg_minimize or bg_normal
     -- FIXME v5, remove the fallback theme.bg_image_* variables, see GH#1403
     local bg_image_normal = args.bg_image_normal or theme.tasklist_bg_image_normal or theme.bg_image_normal
diff --git a/lib/menubar/init.lua b/lib/menubar/init.lua
index 1a7514cf..eb9f0665 100644
--- a/lib/menubar/init.lua
+++ b/lib/menubar/init.lua
@@ -111,7 +111,10 @@ end
 -- @return item name, item background color, background image, item icon.
 local function label(o)
     if o.focused then
-        return colortext(o.name, (theme.menu_fg_focus or theme.fg_focus)), (theme.menu_bg_focus or theme.bg_focus), nil, o.icon
+        return colortext(o.name, (theme.menu_fg_focus or theme.fg_focus)),
+               (theme.menu_bg_focus or theme.bg_focus),
+               nil,
+               o.icon
     else
         return o.name, (theme.menu_bg_normal or theme.bg_normal), nil, o.icon
     end
diff --git a/lib/naughty/core.lua b/lib/naughty/core.lua
index 160910a8..52bbe7b8 100644
--- a/lib/naughty/core.lua
+++ b/lib/naughty/core.lua
@@ -6,6 +6,8 @@
 -- @module naughty
 ----------------------------------------------------------------------------
 
+--luacheck: no max line length
+
 -- Package environment
 local pairs = pairs
 local table = table
diff --git a/lib/naughty/dbus.lua b/lib/naughty/dbus.lua
index c49dc7eb..421ff690 100644
--- a/lib/naughty/dbus.lua
+++ b/lib/naughty/dbus.lua
@@ -105,98 +105,99 @@ local function convert_icon(w, h, rowstride, channels, data)
     return cairo.ImageSurface.create_for_data(tcat(rows), format, w, h, stride)
 end
 
-capi.dbus.connect_signal("org.freedesktop.Notifications", function (data, appname, replaces_id, icon, title, text, actions, hints, expire)
-    local args = { }
-    if data.member == "Notify" then
-        if text ~= "" then
-            args.text = text
-            if title ~= "" then
-                args.title = title
-            end
-        else
-            if title ~= "" then
-                args.text = title
+capi.dbus.connect_signal("org.freedesktop.Notifications",
+    function (data, appname, replaces_id, icon, title, text, actions, hints, expire)
+        local args = { }
+        if data.member == "Notify" then
+            if text ~= "" then
+                args.text = text
+                if title ~= "" then
+                    args.title = title
+                end
             else
-                return
+                if title ~= "" then
+                    args.text = title
+                else
+                    return
+                end
             end
-        end
-        if appname ~= "" then
-            args.appname = appname
-        end
-        for _, obj in pairs(dbus.config.mapping) do
-            local filter, preset = obj[1], obj[2]
-            if (not filter.urgency or filter.urgency == hints.urgency) and
-               (not filter.category or filter.category == hints.category) and
-               (not filter.appname or filter.appname == appname) then
-                   args.preset = util.table.join(args.preset, preset)
+            if appname ~= "" then
+                args.appname = appname
             end
-        end
-        local preset = args.preset or naughty.config.defaults
-        local notification
-        if actions then
-            args.actions = {}
+            for _, obj in pairs(dbus.config.mapping) do
+                local filter, preset = obj[1], obj[2]
+                if (not filter.urgency or filter.urgency == hints.urgency) and
+                (not filter.category or filter.category == hints.category) and
+                (not filter.appname or filter.appname == appname) then
+                    args.preset = util.table.join(args.preset, preset)
+                end
+            end
+            local preset = args.preset or naughty.config.defaults
+            local notification
+            if actions then
+                args.actions = {}
 
-            for i = 1,#actions,2 do
-                local action_id = actions[i]
-                local action_text = actions[i + 1]
+                for i = 1,#actions,2 do
+                    local action_id = actions[i]
+                    local action_text = actions[i + 1]
 
-                if action_id == "default" then
-                    args.run = function()
-                        sendActionInvoked(notification.id, "default")
-                        naughty.destroy(notification, naughty.notificationClosedReason.dismissedByUser)
-                    end
-                elseif action_id ~= nil and action_text ~= nil then
-                    args.actions[action_text] = function()
-                        sendActionInvoked(notification.id, action_id)
-                        naughty.destroy(notification, naughty.notificationClosedReason.dismissedByUser)
+                    if action_id == "default" then
+                        args.run = function()
+                            sendActionInvoked(notification.id, "default")
+                            naughty.destroy(notification, naughty.notificationClosedReason.dismissedByUser)
+                        end
+                    elseif action_id ~= nil and action_text ~= nil then
+                        args.actions[action_text] = function()
+                            sendActionInvoked(notification.id, action_id)
+                            naughty.destroy(notification, naughty.notificationClosedReason.dismissedByUser)
+                        end
                     end
                 end
             end
-        end
-        args.destroy = function(reason)
-            sendNotificationClosed(notification.id, reason)
-        end
-        if not preset.callback or (type(preset.callback) == "function" and
-            preset.callback(data, appname, replaces_id, icon, title, text, actions, hints, expire)) then
-            if icon ~= "" then
-                args.icon = icon
-            elseif hints.icon_data or hints.image_data then
-                if hints.icon_data == nil then hints.icon_data = hints.image_data end
+            args.destroy = function(reason)
+                sendNotificationClosed(notification.id, reason)
+            end
+            if not preset.callback or (type(preset.callback) == "function" and
+                preset.callback(data, appname, replaces_id, icon, title, text, actions, hints, expire)) then
+                if icon ~= "" then
+                    args.icon = icon
+                elseif hints.icon_data or hints.image_data then
+                    if hints.icon_data == nil then hints.icon_data = hints.image_data end
 
-                -- icon_data is an array:
-                -- 1 -> width
-                -- 2 -> height
-                -- 3 -> rowstride
-                -- 4 -> has alpha
-                -- 5 -> bits per sample
-                -- 6 -> channels
-                -- 7 -> data
-                local w, h, rowstride, _, _, channels, icon_data = unpack(hints.icon_data)
-                args.icon = convert_icon(w, h, rowstride, channels, icon_data)
+                    -- icon_data is an array:
+                    -- 1 -> width
+                    -- 2 -> height
+                    -- 3 -> rowstride
+                    -- 4 -> has alpha
+                    -- 5 -> bits per sample
+                    -- 6 -> channels
+                    -- 7 -> data
+                    local w, h, rowstride, _, _, channels, icon_data = unpack(hints.icon_data)
+                    args.icon = convert_icon(w, h, rowstride, channels, icon_data)
+                end
+                if replaces_id and replaces_id ~= "" and replaces_id ~= 0 then
+                    args.replaces_id = replaces_id
+                end
+                if expire and expire > -1 then
+                    args.timeout = expire / 1000
+                end
+                notification = naughty.notify(args)
+                return "u", notification.id
             end
-            if replaces_id and replaces_id ~= "" and replaces_id ~= 0 then
-                args.replaces_id = replaces_id
+            return "u", "0"
+        elseif data.member == "CloseNotification" then
+            local obj = naughty.getById(appname)
+            if obj then
+            naughty.destroy(obj, naughty.notificationClosedReason.dismissedByCommand)
             end
-            if expire and expire > -1 then
-                args.timeout = expire / 1000
-            end
-            notification = naughty.notify(args)
-            return "u", notification.id
+        elseif data.member == "GetServerInfo" or data.member == "GetServerInformation" then
+            -- name of notification app, name of vender, version, specification version
+            return "s", "naughty", "s", "awesome", "s", capi.awesome.version, "s", "1.0"
+        elseif data.member == "GetCapabilities" then
+            -- We actually do display the body of the message, we support <b>, <i>
+            -- and <u> in the body and we handle static (non-animated) icons.
+            return "as", { "s", "body", "s", "body-markup", "s", "icon-static", "s", "actions" }
         end
-        return "u", "0"
-    elseif data.member == "CloseNotification" then
-        local obj = naughty.getById(appname)
-        if obj then
-           naughty.destroy(obj, naughty.notificationClosedReason.dismissedByCommand)
-        end
-    elseif data.member == "GetServerInfo" or data.member == "GetServerInformation" then
-        -- name of notification app, name of vender, version, specification version
-        return "s", "naughty", "s", "awesome", "s", capi.awesome.version, "s", "1.0"
-    elseif data.member == "GetCapabilities" then
-        -- We actually do display the body of the message, we support <b>, <i>
-        -- and <u> in the body and we handle static (non-animated) icons.
-        return "as", { "s", "body", "s", "body-markup", "s", "icon-static", "s", "actions" }
-    end
 end)
 
 capi.dbus.connect_signal("org.freedesktop.DBus.Introspectable", function (data)
diff --git a/lib/wibox/container/scroll.lua b/lib/wibox/container/scroll.lua
index e30a7003..3cce1df9 100644
--- a/lib/wibox/container/scroll.lua
+++ b/lib/wibox/container/scroll.lua
@@ -127,7 +127,11 @@ local function calculate_info(self, context, width, height)
 
         local x, y = 0, 0
         local function get_scroll_offset(size, visible_size)
-            return self._private.step_function(self._private.timer:elapsed(), size, visible_size, self._private.speed, self._private.extra_space)
+            return self._private.step_function(self._private.timer:elapsed(),
+                                               size,
+                                               visible_size,
+                                               self._private.speed,
+                                               self._private.extra_space)
         end
         if self._private.dir == "h" then
             x = -get_scroll_offset(surface_width - extra, width)
diff --git a/spec/wibox/test_utils.lua b/spec/wibox/test_utils.lua
index 756f2dc1..632b3129 100644
--- a/spec/wibox/test_utils.lua
+++ b/spec/wibox/test_utils.lua
@@ -76,7 +76,11 @@ local function widget_layout(state, arguments)
     return false
 end
 say:set("assertion.widget_layout.positive", "Expected:\n%s\nbut got:\n%s\nwhen offering (%s, %s) to widget")
-assert:register("assertion", "widget_layout", widget_layout, "assertion.widget_layout.positive", "assertion.widget_layout.positive")
+assert:register("assertion",
+                "widget_layout",
+                widget_layout,
+                "assertion.widget_layout.positive",
+                "assertion.widget_layout.positive")
 -- }}}
 
 return {
diff --git a/tests/test-benchmark.lua b/tests/test-benchmark.lua
index 55d9f919..def3c01f 100644
--- a/tests/test-benchmark.lua
+++ b/tests/test-benchmark.lua
@@ -8,7 +8,8 @@ local create_wibox = require("_wibox_helper").create_wibox
 
 local BENCHMARK_EXACT = os.getenv("BENCHMARK_EXACT")
 if not BENCHMARK_EXACT then
-    print("Doing quick and inexact measurements. Set BENCHMARK_EXACT=1 as an environment variable when you actually want to look at the results.")
+    print("Doing quick and inexact measurements. Set BENCHMARK_EXACT=1 as an "..
+          "environment variable when you actually want to look at the results.")
 end
 
 local measure, benchmark