Update some copyright headers along with style change

Additionall introduce helpers.setcall to replace the cumbersome setmetatable
at the end of most synchronous widget types

Changes.md

@@ -16,6 +16,7 @@ Added:
 - `helpers.setasyncall` to avoid writing redundant workers for asynchronous
   widget types. Note that these workers are only needed in case Vicious is used
   as a stand-alone library.
+- `helpers.setcall` for registering functions as widget types.
 - `headergen` script for automatic generation of copyright notices.
 
 Fixed:

helpers.lua

@@ -122,6 +122,13 @@ function helpers.wrequire(collection, key)
 end
 -- }}}
 
+-- {{{ Set widget type's __call metamethod to given worker function
+function helpers.setcall(wtype, worker)
+    return setmetatable(
+        wtype, { __call = function(_, ...) return worker(...) end })
+end
+-- }}}
+
 -- {{{ Set __call metamethod to widget type table having async key
 function helpers.setasyncall(wtype)
     local function worker(format, warg)

widgets/bat_freebsd.lua

@@ -1,3 +1,22 @@
+-- battery widget type for FreeBSD
+-- Copyright (C) 2017-2019  mutlusun <mutlusun@github.com>
+-- Copyright (C) 2019  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
+
 -- {{{ Grab environment
 local tonumber = tonumber
 local math = { floor = math.floor }

widgets/bat_linux.lua

@@ -1,26 +1,40 @@
----------------------------------------------------
+-- battery widget type for GNU/Linux
--- Licensed under the GNU General Public License v2
+-- Copyright (C) 2010  Adrian C. <anrxc@sysphere.org>
---  * (c) 2010, Adrian C. <anrxc@sysphere.org>
+-- Copyright (C) 2013  NormalRa <normalrawr@gmail.com>
---  * (c) 2013, NormalRa  <normalrawr@gmail.com>
+-- Copyright (C) 2017  David Udelson <dru5@cornell.edu>
----------------------------------------------------
+-- Copyright (C) 2017  Roberto <empijei@users.noreply.github.com>
+-- Copyright (C) 2017  mutlusun <mutlusun@github.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- {{{ Grab environment
 local tonumber = tonumber
-local setmetatable = setmetatable
 local string = { format = string.format }
-local helpers = require("vicious.helpers")
 local math = {
     min = math.min,
     floor = math.floor
 }
--- }}}
 
+local helpers = require"vicious.helpers"
+-- }}}
 
 -- Bat: provides state, charge, remaining time, and wear for a requested battery
 -- vicious.widgets.bat
 local bat_linux = {}
 
-
 -- {{{ Battery widget type
 local function worker(format, warg)
     if not warg then return end
@@ -45,11 +59,11 @@ local function worker(format, warg)
         return {battery_state["Unknown\n"], 0, "N/A", 0, curpower}
     end
 
-
     -- Get state information
     local state = battery_state[battery.status] or battery_state["Unknown\n"]
 
     -- Get capacity information
+    local remaining, capacity, capacity_design
     if battery.charge_now then
         remaining, capacity = battery.charge_now, battery.charge_full
         capacity_design = battery.charge_full_design or capacity
@@ -64,8 +78,8 @@ local function worker(format, warg)
     local percent = math.min(math.floor(remaining / capacity * 100), 100)
     local wear = math.floor(100 - capacity / capacity_design * 100)
 
-
     -- Get charge information
+    local rate
     if battery.current_now then
         rate = tonumber(battery.current_now)
     elseif battery.power_now then
@@ -78,8 +92,9 @@ local function worker(format, warg)
     local time = "N/A"
 
     if rate ~= nil and rate ~= 0 then
+        local timeleft
         if state == "+" then
-            timeleft = (tonumber(capacity) - tonumber(remaining)) / tonumber(rate)
+            timeleft = (tonumber(capacity)-tonumber(remaining)) / tonumber(rate)
         elseif state == "-" then
             timeleft = tonumber(remaining) / tonumber(rate)
         else
@@ -97,4 +112,4 @@ local function worker(format, warg)
 end
 -- }}}
 
-return setmetatable(bat_linux, { __call = function(_, ...) return worker(...) end })
+return helpers.setcall(bat_linux, worker)

widgets/bat_openbsd.lua

@@ -1,6 +1,6 @@
--- bat_openbsd.lua - provide battery information on OpenBSD
+-- battery widget type for OpenBSD
--- Copyright (C) 2019  Enric Morales
+-- Copyright (C) 2019  Enric Morales <me@enric.me>
--- Copyright (C) 2019  Nguyễn Gia Phong
+-- Copyright (C) 2019  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
 --
 -- This file is part of Vicious.
 --
@@ -12,9 +12,9 @@
 -- Vicious is distributed in the hope that it will be useful,
 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--- GNU Affero General Public License for more details.
+-- GNU General Public License for more details.
 --
--- You should have received a copy of the GNU Affero General Public License
+-- You should have received a copy of the GNU General Public License
 -- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- {{{ Grab environment

widgets/cmus_all.lua

@@ -1,7 +1,22 @@
------------------------------------------------------------
+-- cmus music player widget type
--- Licensed under the GNU General Public License v2
+-- Copyright (C) 2017  JuanKman94 <juan.carlos.menonita@gmail.com>
---  * (c) 2017, JuanKman94 <juan.carlos.menonita@gmail.com>
+-- Copyright (C) 2017  Joerg Thalheim <joerg@thalheim.io>
------------------------------------------------------------
+-- Copyright (C) 2018-2019  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- {{{ Grab environment
 local type = type

widgets/cpu_freebsd.lua

@@ -1,3 +1,22 @@
+-- CPU usage widget type for FreeBSD
+-- Copyright (C) 2017,2019  mutlusun <mutlusun@github.com>
+-- Copyright (C) 2019  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
+
 -- {{{ Grab environment
 local math = { floor = math.floor }
 local string = { gmatch = string.gmatch }
@@ -5,7 +24,6 @@ local string = { gmatch = string.gmatch }
 local helpers = require("vicious.helpers")
 -- }}}
 
-
 -- Cpu: provides CPU usage for all available CPUs/cores
 -- vicious.widgets.cpu_freebsd
 local cpu_freebsd = {}

widgets/cpu_linux.lua

@@ -1,28 +1,41 @@
----------------------------------------------------
+-- CPU usage widget type for GNU/Linux
--- Licensed under the GNU General Public License v2
+-- Copyright (C) 2009  Lucas de Vries <lucas@glacicle.com>
---  * (c) 2011, Adrian C. <anrxc@sysphere.org>
+-- Copyright (C) 2011  Adrian C. <anrxc@sysphere.org>
---  * (c) 2009, Lucas de Vries <lucas@glacicle.com>
+-- Copyright (C) 2011  Jörg Thalheim <jthalheim@gmail.com>
---  * (c) 2011, Jörg Thalheim <jthalheim@gmail.com>
+-- Copyright (C) 2017  mutlusun <mutlusun@github.com>
----------------------------------------------------
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- {{{ Grab environment
 local ipairs = ipairs
 local io = { open = io.open }
-local setmetatable = setmetatable
 local math = { floor = math.floor }
 local table = { insert = table.insert }
 local string = {
     sub = string.sub,
     gmatch = string.gmatch
 }
--- }}}
 
+local helpers = require"vicious.helpers"
+-- }}}
 
 -- Cpu: provides CPU usage for all available CPUs/cores
 -- vicious.widgets.cpu
 local cpu_linux = {}
 
-
 -- Initialize function tables
 local cpu_usage  = {}
 local cpu_total  = {}
@@ -52,7 +65,6 @@ local function worker(format)
         cpu_active[i] = 0
     end
 
-
     for i, v in ipairs(cpu_lines) do
         -- Calculate totals
         local total_new = 0
@@ -77,4 +89,4 @@ local function worker(format)
 end
 -- }}}
 
-return setmetatable(cpu_linux, { __call = function(_, ...) return worker(...) end })
+return helpers.setcall(cpu_linux, worker)

widgets/cpufreq_freebsd.lua

@@ -1,14 +1,31 @@
+-- CPU frequency widget type for FreeBSD
+-- Copyright (C) 2017,2019  mutlusun <mutlusun@github.com>
+-- Copyright (C) 2019  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
+
 -- {{{ Grab environment
 local tonumber = tonumber
 local helpers = require("vicious.helpers")
 -- }}}
 
-
 -- Cpufreq: provides freq, voltage and governor info for a requested CPU
 -- vicious.widgets.cpufreq
 local cpufreq_freebsd = {}
 
-
 -- {{{ CPU frequency widget type
 function cpufreq_freebsd.async(format, warg, callback)
     if not warg then return callback({}) end

widgets/cpufreq_linux.lua

@@ -1,33 +1,45 @@
----------------------------------------------------
+-- CPU frequency widget type for GNU/Linux
--- Licensed under the GNU General Public License v2
+-- Copyright (C) 2010  Adrian C. <anrxc@sysphere.org>
---  * (c) 2010, Adrian C. <anrxc@sysphere.org>
+-- Copyright (C) 2017  mutlusun <mutlusun@github.com>
----------------------------------------------------
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- {{{ Grab environment
 local tonumber = tonumber
-local setmetatable = setmetatable
-local string = { match = string.match }
 local helpers = require("vicious.helpers")
 -- }}}
 
-
 -- Cpufreq: provides freq, voltage and governor info for a requested CPU
 -- vicious.widgets.cpufreq
 local cpufreq_linux = {}
 
+local GOVERNOR_STATE = {
+    ["ondemand\n"]     = "↯",
+    ["powersave\n"]    = "⌁",
+    ["userspace\n"]    = "¤",
+    ["performance\n"]  = "⚡",
+    ["conservative\n"] = "⊚"
+}
 
 -- {{{ CPU frequency widget type
 local function worker(format, warg)
     if not warg then return end
 
-    local _cpufreq = helpers.pathtotable("/sys/devices/system/cpu/"..warg.."/cpufreq")
+    local _cpufreq = helpers.pathtotable(
-    local governor_state = {
+        ("/sys/devices/system/cpu/%s/cpufreq"):format(warg))
-       ["ondemand\n"]     = "↯",
-       ["powersave\n"]    = "⌁",
-       ["userspace\n"]    = "¤",
-       ["performance\n"]  = "⚡",
-       ["conservative\n"] = "⊚"
-    }
     -- Default frequency and voltage values
     local freqv = {
         ["mhz"] = "N/A", ["ghz"] = "N/A",
@@ -43,7 +55,8 @@ local function worker(format, warg)
 
         -- Get the current voltage
         if _cpufreq.scaling_voltages then
-            freqv.mv = tonumber(string.match(_cpufreq.scaling_voltages, freq.."[%s]([%d]+)"))
+            freqv.mv = tonumber(
+                _cpufreq.scaling_voltages:match(freq .. "[%s]([%d]+)"))
             -- Calculate voltage from mV
             freqv.v  = freqv.mv / 1000
         end
@@ -52,10 +65,10 @@ local function worker(format, warg)
     -- Get the current governor
     local governor = _cpufreq.scaling_governor
     -- Represent the governor as a symbol
-    governor = governor_state[governor] or governor or "N/A"
+    governor = GOVERNOR_STATE[governor] or governor or "N/A"
 
     return {freqv.mhz, freqv.ghz, freqv.mv, freqv.v, governor}
 end
 -- }}}
 
-return setmetatable(cpufreq_linux, { __call = function(_, ...) return worker(...) end })
+return helpers.setcall(cpufreq_linux, worker)

widgets/cpuinf_linux.lua

@@ -1,21 +1,33 @@
----------------------------------------------------
+-- CPU information widget type for GNU/Linux
--- Licensed under the GNU General Public License v2
+-- Copyright (C) 2010  Adrian C. <anrxc@sysphere.org>
---  * (c) 2010, Adrian C. <anrxc@sysphere.org>
+-- Copyright (C) 2017  mutlusun <mutlusun@github.com>
----------------------------------------------------
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- {{{ Grab environment
 local tonumber = tonumber
 local io = { lines = io.lines }
-local setmetatable = setmetatable
 local string = { gmatch = string.gmatch }
+local helpers = require"vicious.helpers"
 -- }}}
 
-
 -- Cpuinf: provides speed and cache information for all available CPUs/cores
 -- vicious.widgets.cpuinf
 local cpuinf_linux = {}
 
-
 -- {{{ CPU Information widget type
 local function worker(format)
     local id = nil
@@ -41,4 +53,4 @@ local function worker(format)
 end
 -- }}}
 
-return setmetatable(cpuinf_linux, { __call = function(_, ...) return worker(...) end })
+return helpers.setcall(cpuinf_linux, worker)

widgets/date_all.lua

@@ -1,27 +1,29 @@
----------------------------------------------------
+-- date and time widget type using os.date with optional time formatting
--- Licensed under the GNU General Public License v2
+-- Copyright (C) 2009  Lucas de Vries <lucas@glacicle.com>
---  * (c) 2010, Adrian C. <anrxc@sysphere.org>
+-- Copyright (C) 2010  Adrian C. <anrxc@sysphere.org>
---  * (c) 2009, Lucas de Vries <lucas@glacicle.com>
+-- Copyright (C) 2017  mutlusun <mutlusun@github.com>
----------------------------------------------------
+-- Copyright (C) 2019  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- {{{ Grab environment
-local setmetatable = setmetatable
+local os = { date = os.date, time = os.time }
-local os = {
+local helpers = require"vicious.helpers"
-    date = os.date,
-    time = os.time
-}
 -- }}}
 
-
+return helpers.setcall({}, function (format, warg)
--- Date: provides access to os.date with optional time formatting
--- vicious.widgets.date
-local date_all = {}
-
-
--- {{{ Date widget type
-local function worker(format, warg)
     return os.date(format or nil, warg and os.time()+warg or nil)
-end
+end)
--- }}}
-
-return setmetatable(date_all, { __call = function(_, ...) return worker(...) end })

widgets/dio_linux.lua

@@ -1,26 +1,35 @@
----------------------------------------------------
+-- disk I/O widget type for GNU/Linux
--- Licensed under the GNU General Public License v2
+-- Copyright (C) 2011  Jörg T. <jthalheim@gmail.com>
---  * (c) 2011, Jörg T. <jthalheim@gmail.com>
+-- Copyright (C) 2017  Elric Milon <whirm@gmx.com>
----------------------------------------------------
+-- Copyright (C) 2017  mutlusun <mutlusun@github.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- {{{ Grab environment
 local pairs = pairs
 local io = { lines = io.lines }
-local setmetatable = setmetatable
+local os = { time = os.time, difftime = os.difftime }
-local string = { match = string.match }
-local helpers = require("vicious.helpers")
-local os = {
-    time = os.time,
-    difftime = os.difftime
-}
--- }}}
 
+local helpers = require"vicious.helpers"
+-- }}}
 
 -- Disk I/O: provides I/O statistics for requested storage devices
 -- vicious.widgets.dio
 local dio_linux = {}
 
-
 -- Initialize function tables
 local disk_usage = {}
 local disk_stats = {}
@@ -36,7 +45,7 @@ local function worker(format)
     for line in io.lines("/proc/diskstats") do
         local device, read, write, iotime =
             -- Linux kernel documentation: Documentation/iostats.txt
-          string.match(line, "([^%s]+) %d+ %d+ (%d+) %d+ %d+ %d+ (%d+) %d+ %d+ (%d+)")
+            line:match"([^%s]+) %d+ %d+ (%d+) %d+ %d+ %d+ (%d+) %d+ %d+ (%d+)"
         disk_lines[device] = { read, write, iotime }
     end
 
@@ -50,7 +59,7 @@ local function worker(format)
 
         -- Check for overflows and counter resets (> 2^32)
         if stats[1] < last_stats[1] or stats[2] < last_stats[2] then
-            last_stats[1], last_stats[2], last_stats[3] = stats[1], stats[2], stats[3]
+            for i = 1,3 do last_stats[i] = stats[i] end
         end
 
         -- Diskstats are absolute, substract our last reading
@@ -73,4 +82,4 @@ local function worker(format)
 end
 -- }}}
 
-return setmetatable(dio_linux, { __call = function(_, ...) return worker(...) end })
+return helpers.setcall(dio_linux, worker)

widgets/fanspeed_freebsd.lua

@@ -1,3 +1,22 @@
+-- fan speed widget type for FreeBSD
+-- Copyright (C) 2017,2019  mutlusun <mutlusun@github.com>
+-- Copyright (C) 2019  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
+
 -- {{{ Grab environment
 local tonumber = tonumber
 local type = type
@@ -5,7 +24,6 @@ local type = type
 local helpers = require("vicious.helpers")
 -- }}}
 
-
 -- fanspeed: provides speed level of fans
 -- vicious.widgets.fanspeed
 --

widgets/fs_all.lua

@@ -1,8 +1,24 @@
----------------------------------------------------
+-- filesystem widget type
--- Licensed under the GNU General Public License v2
+-- Copyright (C) 2009  Lucas de Vries <lucas@glacicle.com>
---  * (c) 2010, Adrian C. <anrxc@sysphere.org>
+-- Copyright (C) 2010  Adrian C. <anrxc@sysphere.org>
---  * (c) 2009, Lucas de Vries <lucas@glacicle.com>
+-- Copyright (C) 2017  Joerg Thalheim <joerg@thalheim.io>
----------------------------------------------------
+-- Copyright (C) 2017  mutlusun <mutlusun@github.com>
+-- Copyright (C) 2019  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- {{{ Grab environment
 local tonumber = tonumber

widgets/gmail_all.lua

@@ -1,7 +1,23 @@
----------------------------------------------------
+-- new e-mails count and last e-mail subject on Gmail
--- Licensed under the GNU General Public License v2
+-- Copyright (C) 2010  Adrian C. <anrxc@sysphere.org>
---  * (c) 2010, Adrian C. <anrxc@sysphere.org>
+-- Copyright (C) 2017  mutlusun <mutlusun@github.com>
----------------------------------------------------
+-- Copyright (C) 2017  starenka <starenka0@gmail.com>
+-- Copyright (C) 2018-2019  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- {{{ Grab environment
 local type = type
@@ -12,7 +28,6 @@ local helpers = require("vicious.helpers")
 local spawn = require("vicious.spawn")
 -- }}}
 
-
 -- Gmail: provides count of new and subject of last e-mail on Gmail
 -- vicious.widgets.gmail
 local gmail_all = {}

widgets/hddtemp_linux.lua

@@ -1,7 +1,22 @@
----------------------------------------------------
+-- hard drive temperatures widget type using hddtemp daemon
--- Licensed under the GNU General Public License v2
+-- Copyright (C) 2010  Adrian C. <anrxc@sysphere.org>
---  * (c) 2010, Adrian C. <anrxc@sysphere.org>
+-- Copyright (C) 2017  mutlusun <mutlusun@github.com>
----------------------------------------------------
+-- Copyright (C) 2019  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- {{{ Grab environment
 local tonumber = tonumber
@@ -10,7 +25,6 @@ local helpers = require"vicious.helpers"
 local spawn = require"vicious.spawn"
 -- }}}
 
-
 -- Hddtemp: provides hard drive temperatures using the hddtemp daemon
 -- vicious.widgets.hddtemp
 return helpers.setasyncall{

widgets/hwmontemp_linux.lua

@@ -1,7 +1,21 @@
-----------------------------------------------------------------
+-- widget type providing name-indexed temperatures from /sys/class/hwmon
---   Licensed under the GNU General Public License v2
+-- Copyright (C) 2019  Alexander Koch <lynix47@gmail.com>
---   (C) 2019, Alexander Koch <lynix47@gmail.com>
+-- Copyright (C) 2019  Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
-----------------------------------------------------------------
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
 -- environment
 local type = type

widgets/init.lua

@@ -1,5 +1,24 @@
+-- widget types initialization
+-- Copyright (C) 2010  Adrian C. (anrxc) <anrxc@sysphere.org>
+-- Copyright (C) 2011,2012  Jörg Thalheim <jthalheim@gmail.com>
+-- Copyright (C) 2012  Arvydas Sidorenko <asido4@gmail.com>
+--
+-- This file is part of Vicious.
+--
+-- Vicious is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as
+-- published by the Free Software Foundation, either version 2 of the
+-- License, or (at your option) any later version.
+--
+-- Vicious is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with Vicious.  If not, see <https://www.gnu.org/licenses/>.
 
+local setmetatable = setmetatable
 local wrequire = require("vicious.helpers").wrequire
-widgets = { _NAME = "vicious.widgets" }
 
-return setmetatable(widgets, {__index = wrequire})
+return setmetatable({ _NAME = "vicious.widgets" }, { __index = wrequire })