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Import of vicious source tree. 

Vicious is a modular widget library for 'awesome' window manager,
derived from the 'Wicked' widget library.

Summary of changes:
  * Original wicked code modularized
  * Widgets ported from Wicked:
    - CPU, MEM, FS, NET, Date, Uptime, MPD
      * CPU widget rewritten, uses pattern matching
      * MEM widget rewritten, uses pattern matching
        - Swap widget merged with MEM widget type
      * FS widget rewritten, uses pattern matching
        - Also fixed padding in the process
      * NET widget rewritten, uses pattern matching
      * MPD widget rewritten, a bit more versatile
      * Removed deprecated helper functions
  * Widgets written for Vicious:
    - Thermal, Battery, Mbox, OrgMode, Volume, Entropy,
      Disk I/O, System Load, Wireless, Pacman, Maildir
This commit is contained in:
Adrian C. (anrxc) 2009-07-29 17:59:32 +02:00
commit 98e26ee043
21 changed files with 1685 additions and 0 deletions
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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convey the exclusion of warranty; and each file should have at least
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<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
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Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
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Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local io = { popen = io.popen }
local table = { insert = table.insert }
-- }}}
-- Bat: provides state, charge, and remaining time for all batteries
module("vicious.bat")
-- {{{ Battery widget type
function worker(format)
-- Initialise tables
local battery_info = {}
local battery_state = {
["charged"] = "+",
["charging"] = "+",
["discharging"] = "-"
}
-- Get data from acpitool
local f = io.popen("acpitool -b")
-- Format data
for line in f:lines() do
-- Check if the battery is present
if line:match("^[%s]+Battery.*") then
-- Store state and charge information
table.insert(battery_info, battery_state[line:match("([%a]*),")])
table.insert(battery_info, line:match("([%d]?[%d]?[%d])%."))
-- Store remaining time information if the battery supports it
table.insert(battery_info, (line:match("%%,%s(.*)") or "/"))
end
end
f:close()
return battery_info
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local type = type
local pairs = pairs
local ipairs = ipairs
local io = { open = io.open }
local math = { floor = math.floor }
local table = { insert = table.insert }
local helpers = require("vicious.helpers")
-- }}}
-- Cpu: provides CPU usage for all available CPUs/cores
module("vicious.cpu")
-- Initialise function tables
local cpu_usage = {}
local cpu_total = {}
local cpu_active = {}
-- {{{ CPU widget type
function worker(format, padding)
-- Get /proc/stat
local f = io.open("/proc/stat")
local cpu_lines = {}
-- Format data
for line in f:lines() do
if line:find("^cpu") then
if #cpu_lines < 1 then cpuid = 1
else cpuid = #cpu_lines + 1 end
cpu_lines[cpuid] = {}
for match in line:gmatch("[%s]+([%d]+)") do
table.insert(cpu_lines[cpuid], match)
end
end
end
f:close()
-- Ensure tables are initialized correctly
while #cpu_total < #cpu_lines do
table.insert(cpu_total, 0)
end
while #cpu_active < #cpu_lines do
table.insert(cpu_active, 0)
end
while #cpu_usage < #cpu_lines do
table.insert(cpu_usage, 0)
end
-- Setup tables
local total_new = {}
local active_new = {}
local diff_total = {}
local diff_active = {}
for i, v in ipairs(cpu_lines) do
-- Calculate totals
total_new[i] = 0
for j = 1, #v do
total_new[i] = total_new[i] + v[j]
end
active_new[i] = v[1] + v[2] + v[3]
-- Calculate percentage
diff_total[i] = total_new[i] - cpu_total[i]
diff_active[i] = active_new[i] - cpu_active[i]
cpu_usage[i] = math.floor(diff_active[i] / diff_total[i] * 100)
-- Store totals
cpu_total[i] = total_new[i]
cpu_active[i] = active_new[i]
end
if padding ~= nil then
for k, v in pairs(cpu_usage) do
if type(padding) == "table" then
p = padding[k]
else
p = padding
end
cpu_usage[k] = helpers.padd(cpu_usage[k], p)
end
end
return cpu_usage
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local os = { date = os.date }
-- }}}
-- Date: provides access to os.date with optional custom formatting
module("vicious.date")
-- {{{ Date widget type
function worker(format)
-- Get format
if format == nil then
return os.date()
else
return os.date(format)
end
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local type = type
local ipairs = ipairs
local io = { open = io.open }
local math = { floor = math.floor }
local table = { insert = table.insert }
-- }}}
-- Disk I/O: provides I/O statistics for requsted storage devices
module("vicious.dio")
-- Initialise function tables
local disk_usage = {}
local disk_total = {}
-- {{{ Disk I/O widget type
function worker(format, disk)
-- Get /proc/diskstats
local f = io.open("/proc/diskstats")
local disk_lines = {}
-- Format data
for line in f:lines() do
if line:match("("..disk..")%s") then
-- Todo: find a way to do this
--for stat in line:gmatch("%s([%d]+)") do
-- table.insert(disk_lines, stat)
--end
--
-- Skip first two matches
local stat = line:gmatch("%s([%d]+)")
stat()
stat()
-- Store the rest
for i = 1, 11 do
table.insert(disk_lines, stat())
end
end
end
f:close()
-- Ensure tables are initialized correctly
while #disk_total < #disk_lines do
table.insert(disk_total, 0)
end
-- Setup tables
local diff_total = {}
for i, v in ipairs(disk_lines) do
-- Diskstats are absolute, substract our last reading
diff_total[i] = v - disk_total[i]
-- Store totals
disk_total[i] = v
end
-- Calculate I/O
disk_usage["{raw}"] = diff_total[7] + diff_total[3]
-- Divide "sectors read" by 2 and 1024 to get KB and MB
disk_usage["{kb}"] = math.floor(diff_total[7] + diff_total[3])/2
disk_usage["{mb}"] = math.floor(diff_total[7] + diff_total[3])/1024
return disk_usage
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local io = { open = io.open }
local math = { floor = math.floor }
local string = { format = string.format }
-- }}}
-- Entropy: provides available system entropy
module("vicious.entropy")
-- {{{ Entropy widget type
function worker(format, poolsize)
-- Don't waste time opening the poolsize, Linux 2.6 has a default
-- entropy pool of 4096-bits, if needed specify otherwise
if poolsize == nil then
poolsize = 4096
end
-- Get available entropy
local f = io.open("/proc/sys/kernel/random/entropy_avail")
local ent_avail = f:read()
f:close()
-- Calculate percentage
ent_avail_percent = math.floor(ent_avail * 100 / poolsize)
-- This data is intended for a progressbar
ent_avail_percent = string.format("%0d", ent_avail_percent)
return {ent_avail, ent_avail_percent}
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local type = type
local io = { popen = io.popen }
local helpers = require("vicious.helpers")
-- }}}
-- FS: provides usage statistics for requested mount points
module("vicious.fs")
-- {{{ Filesystem widget type
function worker(format, padding)
-- Get data from df
local f = io.popen("df -hP")
local args = {}
-- Format data
for line in f:lines() do
if not line:match("^Filesystem.*") then
-- Format helper can't deal with matrices, so don't setup a
-- table for each mount point with gmatch
local size, used, avail, usep, mount =
-- Instead match all at once, including network file systems
line:match("^[%w/-:%.]+[%s]+([%d%.]+)[%a]?[%s]+([%d%.]+)[%a]?[%s]+([%d%.]+)[%a]?[%s]+([%d]+)%%[%s]+([-/%w]+)$")
if padding then
if type(padding) == "table" then
size = helpers.padd(size, padding[1])
used = helpers.padd(used, padding[2])
avail = helpers.padd(avail, padding[3])
usep = helpers.padd(usep, padding[4])
else
size = helpers.padd(size, padding)
used = helpers.padd(used, padding)
avail = helpers.padd(avail, padding)
usep = helpers.padd(usep, padding)
end
end
args["{"..mount.." size}"] = size
args["{"..mount.." used}"] = used
args["{"..mount.." avail}"] = avail
args["{"..mount.." usep}"] = usep
end
end
f:close()
return args
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local pairs = pairs
local tonumber = tonumber
local tostring = tostring
local table = { insert = table.insert }
local math = {
pow = math.pow,
floor = math.floor
}
local string = {
sub = string.sub,
gsub = string.gsub,
find = string.find
}
-- }}}
-- Helpers: provides helper functions for vicious widgets
module("vicious.helpers")
-- {{{ Helper functions
-- {{{ Format a string with args
function format(format, args)
-- TODO: Find a more efficient way to do this
-- Format a string
for var, val in pairs(args) do
format = string.gsub(format, "$"..var, val)
end
-- Return formatted string
return format
end
-- }}}
-- {{{ Padd a number to a minimum amount of digits
function padd(number, padding)
s = tostring(number)
if padding == nil then
return s
end
for i=1, padding do
if math.floor(number/math.pow(10,(i-1))) == 0 then
s = "0"..s
end
end
if number == 0 then
s = s:sub(2)
end
return s
end
-- }}}
-- {{{ Convert amount of bytes to string
function bytes_to_string(bytes, sec, padding)
if bytes == nil or tonumber(bytes) == nil then
return ""
end
bytes = tonumber(bytes)
local signs = {}
signs[1] = " b"
signs[2] = "KiB"
signs[3] = "MiB"
signs[4] = "GiB"
signs[5] = "TiB"
sign = 1
while bytes/1024 > 1 and signs[sign+1] ~= nil do
bytes = bytes/1024
sign = sign+1
end
bytes = bytes*10
bytes = math.floor(bytes)/10
if padding then
bytes = padd(bytes*10, padding+1)
bytes = bytes:sub(1, bytes:len()-1).."."..bytes:sub(bytes:len())
end
if sec then
return tostring(bytes)..signs[sign].."ps"
else
return tostring(bytes)..signs[sign]
end
end
-- }}}
--{{{ Escape a string
function escape(text)
if text then
text = text:gsub("&", "&amp;")
text = text:gsub("<", "&lt;")
text = text:gsub(">", "&gt;")
text = text:gsub("'", "&apos;")
text = text:gsub("\"", "&quot;")
end
return text
end
-- }}}
-- }}}

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----------------------------------------------------------------
-- Vicious widgets for the awesome window manager
-- * FAQ: http://sysphere.org/~anrxc/local/scr/sources/vicious
----------------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
--
-- To view a human-readable summary of the license, visit:
-- * http://creativecommons.org/licenses/GPL/2.0/
----------------------------------------------------------------
-- Derived from Wicked, by Lucas de Vries <lucas_glacicle_com>
-- * Wicked is licensed under the WTFPL v2
----------------------------------------------------------------
-- {{{ Grab environment
require("awful")
require("vicious.helpers")
local type = type
local pairs = pairs
local awful = awful
local tonumber = tonumber
local os = { time = os.time }
local table = {
insert = table.insert,
remove = table.remove
}
-- Grab C API
local capi = {
hooks = hooks,
widget = widget,
awesome = awesome,
}
-- }}}
-- {{{ Configure widgets
require("vicious.cpu")
require("vicious.thermal")
require("vicious.load")
require("vicious.uptime")
require("vicious.bat")
require("vicious.mem")
require("vicious.fs")
require("vicious.dio")
require("vicious.net")
require("vicious.wifi")
require("vicious.mbox")
require("vicious.mdir")
require("vicious.entropy")
require("vicious.org")
require("vicious.pacman")
require("vicious.mpd")
require("vicious.volume")
require("vicious.date")
-- }}}
-- Vicious: widgets for the awesome window manager
module("vicious")
-- {{{ Initialise variables
local registered = {}
local widget_cache = {}
-- Initialise the function table
widgets = {}
-- }}}
-- {{{ Widget types
for w, i in pairs(_M) do
-- Ensure we don't call ourselves
if i and i ~= _M and type(i) == "table" then
-- Ignore the function table and helpers
if w ~= "widgets" and w ~= "helpers" then
-- Place functions in the namespace table
widgets[w] = i.worker
-- Enable caching for all widget types
widget_cache[i.worker] = {}
end
end
end
-- }}}
-- {{{ Main functions
-- {{{ Register widget
function register(widget, wtype, format, timer, field, padd)
local reg = {}
local widget = widget
-- Set properties
reg.type = wtype
reg.format = format
reg.timer = timer
reg.field = field
reg.padd = padd
reg.widget = widget
-- Update function
reg.update = function ()
update(widget, reg)
end
-- Default to timer=1
if reg.timer == nil then
reg.timer = 1
end
-- Allow using a string widget type
if type(reg.type) == "string" then
reg.type = widgets[reg.type]
end
-- Register reg object
regregister(reg)
-- Return reg object for reuse
return reg
end
-- }}}
-- {{{ Register from reg object
function regregister(reg)
if not reg.running then
-- Put widget in table
if registered[reg.widget] == nil then
registered[reg.widget] = {}
table.insert(registered[reg.widget], reg)
else
already = false
for w, i in pairs(registered) do
if w == reg.widget then
for k, v in pairs(i) do
if v == reg then
already = true
break
end
end
if already then
break
end
end
end
if not already then
table.insert(registered[reg.widget], reg)
end
end
-- Start timer
if reg.timer > 0 then
awful.hooks.timer.register(reg.timer, reg.update)
end
-- Initial update
reg.update()
-- Set running
reg.running = true
end
end
-- }}}
-- {{{ Unregister widget
function unregister(widget, keep, reg)
if reg == nil then
for w, i in pairs(registered) do
if w == widget then
for k, v in pairs(i) do
reg = unregister(w, keep, v)
end
end
end
return reg
end
if not keep then
for w, i in pairs(registered) do
if w == widget then
for k, v in pairs(i) do
if v == reg then
table.remove(registered[w], k)
end
end
end
end
end
awful.hooks.timer.unregister(reg.update)
reg.running = false
return reg
end
-- }}}
-- {{{ Suspend vicious, halt all widget updates
function suspend()
for w, i in pairs(registered) do
for k, v in pairs(i) do
unregister(w, true, v)
end
end
end
-- }}}
-- {{{ Activate vicious, restart all widget updates
function activate(widget)
for w, i in pairs(registered) do
if widget == nil or w == widget then
for k, v in pairs(i) do
regregister(v)
end
end
end
end
-- }}}
-- {{{ Update widget
function update(widget, reg, disablecache)
-- Check if there are any equal widgets
if reg == nil then
for w, i in pairs(registered) do
if w == widget then
for k, v in pairs(i) do
update(w, v, disablecache)
end
end
end
return
end
local t = os.time()
local data = {}
-- Check if we have output chached for this widget newer than last
-- widget update
if widget_cache[reg.type] ~= nil then
local c = widget_cache[reg.type]
if c.time == nil or c.time <= t-reg.timer or disablecache then
c.time = t
c.data = reg.type(reg.format, reg.padd)
end
data = c.data
else
data = reg.type(reg.format, reg.padd)
end
if type(data) == "table" then
if type(reg.format) == "string" then
data = helpers.format(reg.format, data)
elseif type(reg.format) == "function" then
data = reg.format(widget, data)
end
end
if reg.field == nil then
widget.text = data
elseif widget.plot_data_add ~= nil then
widget:plot_data_add(reg.field, tonumber(data))
elseif widget.bar_data_add ~= nil then
widget:bar_data_add(reg.field, tonumber(data))
end
return data
end
-- }}}
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local io = { open = io.open }
-- }}}
-- Load: provides system load averages for the past 1, 5, and 15 minutes
module("vicious.load")
-- {{{ Load widget type
function worker(format)
-- Get load averages
local f = io.open('/proc/loadavg')
local line = f:read()
f:close()
-- Get load data
local avg1, avg5, avg15 =
line:match("([%d]*%.[%d]*)%s([%d]*%.[%d]*)%s([%d]*%.[%d]*)")
return {avg1, avg5, avg15}
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local io = { open = io.open }
local string = { gfind = string.gfind }
local helpers = require("vicious.helpers")
-- }}}
-- Mbox: provides the subject of last e-mail in a mbox file
module("vicious.mbox")
-- {{{ Mailbox widget type
function worker(format, mbox)
local f = io.open(mbox)
-- mbox could be huge, get a 15kb chunk from EOF
-- * attachments could be much bigger than this
f:seek("end", -15360)
-- Get data
local text = f:read("*all")
f:close()
-- Find subject lines
for match in string.gfind(text, "Subject: ([^\n]*)") do
subject = match
end
if subject then
-- Spam sanitize only the last subject
subject = helpers.escape(subject)
-- Don't abuse the wibox, truncate
if subject:len() > 22 then
subject = subject:sub(1, 19) .. "..."
end
return {subject}
end
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
-- * Derived from Maildir Biff Widget, by Fredrik Ax
----------------------------------------------------------
-- {{{ Grab environment
local io = { popen = io.popen }
-- }}}
-- Mdir: provides a number of new and unread messages in a Maildir structure
module("vicious.mdir")
-- {{{ Maildir widget type
function worker(format, mdir)
-- Widgets like this one are not agressive like CPU or NET, so we
-- can keep it simple, find is OK with me if we execute every >60s
--
-- Initialise counters
local newcount = 0
local curcount = 0
-- Recursively find new messages
local fnew = io.popen("find " .. mdir .. " -type f -wholename '*/new/*'")
for line in fnew:lines() do
newcount = newcount + 1
end
fnew:close()
-- Recursively find "old" messages lacking the Seen flag
local fcur = io.popen("find " .. mdir .. " -type f -regex '.*/cur/.*2,[^S]*$'")
for line in fcur:lines() do
curcount = curcount + 1
end
fcur:close()
return {newcount, curcount}
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local type = type
local tonumber = tonumber
local io = { open = io.open }
local math = { floor = math.floor }
local helpers = require("vicious.helpers")
-- }}}
-- Mem: provides RAM and Swap usage statistics
module("vicious.mem")
-- {{{ Memory widget type
function worker(format, padding)
-- Get meminfo
local f = io.open("/proc/meminfo")
-- Get data
for line in f:lines() do
if line:match("^MemTotal.*") then
mem_total = math.floor(tonumber(line:match("([%d]+)")) / 1024)
elseif line:match("^MemFree.*") then
free = math.floor(tonumber(line:match("([%d]+)")) / 1024)
elseif line:match("^Buffers.*") then
buffers = math.floor(tonumber(line:match("([%d]+)")) / 1024)
elseif line:match("^Cached.*") then
cached = math.floor(tonumber(line:match("([%d]+)")) / 1024)
-- Get swap stats while we're at it
elseif line:match("^SwapTotal.*") then
swap_total = math.floor(tonumber(line:match("([%d]+)")) / 1024)
elseif line:match("^SwapFree.*") then
swap_free = math.floor(tonumber(line:match("([%d]+)")) / 1024)
end
end
f:close()
-- Calculate percentage
mem_free = free + buffers + cached
mem_inuse = mem_total - mem_free
mem_usepercent = math.floor(mem_inuse/mem_total*100)
-- Calculate swap percentage
swap_inuse = swap_total - swap_free
swap_usepercent = math.floor(swap_inuse/swap_total*100)
if padding then
if type(padding) == "table" then
mem_usepercent = helpers.padd(mem_usepercent, padding[1])
mem_inuse = helpers.padd(mem_inuse, padding[2])
mem_total = helpers.padd(mem_total, padding[3])
mem_free = helpers.padd(mem_free, padding[4])
swap_usepercent = helpers.padd(swap_usepercent, padding[1])
swap_inuse = helpers.padd(swap_inuse, padding[2])
swap_total = helpers.padd(swap_total, padding[3])
swap_free = helpers.padd(swap_free, padding[4])
else
mem_usepercent = helpers.padd(mem_usepercent, padding)
mem_inuse = helpers.padd(mem_inuse, padding)
mem_total = helpers.padd(mem_total, padding)
mem_free = helpers.padd(mem_free, padding)
swap_usepercent = helpers.padd(swap_usepercent, padding)
swap_inuse = helpers.padd(swap_inuse, padding)
swap_total = helpers.padd(swap_total, padding)
swap_free = helpers.padd(swap_free, padding)
end
end
return {mem_usepercent, mem_inuse, mem_total, mem_free,
swap_usepercent, swap_inuse, swap_total, swap_free}
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local io = { popen = io.popen }
local helpers = require("vicious.helpers")
-- }}}
-- Mpd: provides the currently playing song in MPD
module("vicious.mpd")
-- {{{ MPD widget type
function worker()
-- This one is as simple as they come. Using sockets or expanding
-- it is a lost cause since there are already a few MPD Lua libs
-- written for awesome. Use them.
--
-- Get data from mpc
local f = io.popen("mpc")
local np = f:read("*line")
f:close()
-- Check if it's stopped, off or not installed
if np == nil or (np:find("MPD_HOST") or np:find("volume:")) then
return {"Stopped"}
end
-- Sanitize the song name
nowplaying = helpers.escape(np)
-- Don't abuse the wibox, truncate
if nowplaying:len() > 30 then
nowplaying = nowplaying:sub(1, 27) .. "..."
end
return {nowplaying}
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local tonumber = tonumber
local os = { time = os.time }
local io = { open = io.open }
local math = { floor = math.floor }
local helpers = require("vicious.helpers")
-- }}}
-- Net: provides usage statistics for all network interfaces
module("vicious.net")
-- Initialise function tables
local nets = {}
-- {{{ Net widget type
function worker(format, padding)
-- Get /proc/net/dev
local f = io.open("/proc/net/dev")
local args = {}
-- Format data
for line in f:lines() do
-- Match wmaster0 as well as rt0 (multiple leading spaces)
if line:match("^[%s]?[%s]?[%s]?[%s]?[%w]+:") then
name = line:match("^[%s]?[%s]?[%s]?[%s]?([%w]+):")
-- Received bytes, first value after the name
recv = tonumber(line:match(":[%s]*([%d]+)"))
-- Transmited bytes, 7 fields from end of the line
send = tonumber(line:match("([%d]+)%s+%d+%s+%d+%s+%d+%s+%d+%s+%d+%s+%d+%s+%d$"))
if padding then
args["{"..name.." rx}"] = helpers.bytes_to_string(recv, nil, padding)
args["{"..name.." tx}"] = helpers.bytes_to_string(send, nil, padding)
else
args["{"..name.." rx}"] = helpers.bytes_to_string(recv)
args["{"..name.." tx}"] = helpers.bytes_to_string(send)
end
args["{"..name.." rx_b}"] = math.floor(recv*10)/10
args["{"..name.." tx_b}"] = math.floor(send*10)/10
args["{"..name.." rx_kb}"] = math.floor(recv/1024*10)/10
args["{"..name.." tx_kb}"] = math.floor(send/1024*10)/10
args["{"..name.." rx_mb}"] = math.floor(recv/1024/1024*10)/10
args["{"..name.." tx_mb}"] = math.floor(send/1024/1024*10)/10
args["{"..name.." rx_gb}"] = math.floor(recv/1024/1024/1024*10)/10
args["{"..name.." tx_gb}"] = math.floor(send/1024/1024/1024*10)/10
if nets[name] == nil then
-- Default values on our first run
nets[name] = {}
args["{"..name.." down}"] = "n/a"
args["{"..name.." up}"] = "n/a"
args["{"..name.." down_b}"] = 0
args["{"..name.." up_b}"] = 0
args["{"..name.." down_kb}"] = 0
args["{"..name.." up_kb}"] = 0
args["{"..name.." down_mb}"] = 0
args["{"..name.." up_mb}"] = 0
args["{"..name.." down_gb}"] = 0
args["{"..name.." up_gb}"] = 0
nets[name].time = os.time()
else
-- Net stats are absolute, substract our last reading
interval = os.time() - nets[name].time
nets[name].time = os.time()
down = (recv - nets[name][1])/interval
up = (send - nets[name][2])/interval
if padding then
args["{"..name.." down}"] = helpers.bytes_to_string(down, true, padding)
args["{"..name.." up}"] = helpers.bytes_to_string(up, true, padding)
else
args["{"..name.." down}"] = helpers.bytes_to_string(down, true)
args["{"..name.." up}"] = helpers.bytes_to_string(up, true)
end
args["{"..name.." down_b}"] = math.floor(down*10)/10
args["{"..name.." up_b}"] = math.floor(up*10)/10
args["{"..name.." down_kb}"] = math.floor(down/1024*10)/10
args["{"..name.." up_kb}"] = math.floor(up/1024*10)/10
args["{"..name.." down_mb}"] = math.floor(down/1024/1024*10)/10
args["{"..name.." up_mb}"] = math.floor(up/1024/1024*10)/10
args["{"..name.." down_gb}"] = math.floor(down/1024/1024/1024*10)/10
args["{"..name.." up_gb}"] = math.floor(up/1024/1024/1024*10)/10
end
-- Store totals
nets[name][1] = recv
nets[name][2] = send
end
end
f:close()
return args
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
-- * Derived from org-awesome, copyright of Damien Leone
----------------------------------------------------------
-- {{{ Grab environment
local io = { open = io.open }
local string = { find = string.find }
local os = {
time = os.time,
date = os.date
}
-- }}}
-- Org: provides agenda statistics for Emacs org-mode
module("vicious.org")
-- {{{ OrgMode widget type
function worker(format, files)
-- Compute delays
local today = os.time{ year=os.date("%Y"), month=os.date("%m"), day=os.date("%d") }
local soon = today + 24 * 3600 * 3 -- 3 days ahead is close
local future = today + 24 * 3600 * 7 -- 7 days ahead is maximum
-- Initialise count table
local count = {
past = 0,
today = 0,
soon = 0,
future = 0
}
-- Get data from agenda files
for i=1, #files do
local f = io.open(files[i])
-- Parse the agenda
for line in f:lines() do
local scheduled = string.find(line, "SCHEDULED:")
local closed = string.find(line, "CLOSED:")
local deadline = string.find(line, "DEADLINE:")
if (scheduled and not closed) or (deadline and not closed) then
local b, e, y, m, d = string.find(line, "(%d%d%d%d)-(%d%d)-(%d%d)")
-- Enumerate agenda items
if b then
local t = os.time{ year = y, month = m, day = d }
if t < today then
count.past = count.past + 1
elseif t == today then
count.today = count.today + 1
elseif t <= soon then
count.soon = count.soon + 1
elseif t <= future then
count.future = count.future + 1
end
end
end
end
f:close()
end
return {count.past, count.today, count.soon, count.future}
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local tonumber = tonumber
local io = { popen = io.popen }
-- }}}
-- Pacman: provides number of pending updates on Arch Linux
module("vicious.pacman")
-- {{{ Pacman widget type
function worker(format)
-- Check if updates are available
local f = io.popen("pacman -Qu")
-- Initialise updates
local updates = nil
-- Get data
for line in f:lines() do
-- If there are 'Targets:' then updates are available,
-- number is provided, we don't have to count packages
updates = line:match("^Targets[%s]%(([%d]+)%)") or 0
-- If the count changed then break out of the loop
if tonumber(updates) > 0 then
break
end
end
f:close()
return {updates}
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local io = { open = io.open }
-- }}}
-- Thermal: provides temperature levels of ACPI thermal zones
module("vicious.thermal")
-- {{{ Thermal widget type
function worker(format, thermal_zone)
-- Get thermal zone
local f = io.open("/proc/acpi/thermal_zone/" .. thermal_zone .. "/temperature")
local line = f:read()
f:close()
-- Get temperature data
local temperature = line:match("[%d]?[%d]?[%d]")
return {temperature}
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local tonumber = tonumber
local io = { open = io.open }
local math = { floor = math.floor }
local helpers = require("vicious.helpers")
-- }}}
-- Uptime: provides system uptime information
module("vicious.uptime")
-- {{{ Uptime widget type
function worker(format, padding)
-- Get /proc/uptime
local f = io.open("/proc/uptime")
local line = f:read()
f:close()
-- Format data
local total_uptime = math.floor(tonumber(line:match("[%d%.]+")))
local uptime_days = math.floor(total_uptime / (3600 * 24))
local uptime_hours = math.floor((total_uptime % (3600 * 24)) / 3600)
local uptime_minutes = math.floor(((total_uptime % (3600 * 24)) % 3600) / 60)
local uptime_seconds = math.floor(((total_uptime % (3600 * 24)) % 3600) % 60)
if padding then
if type(padding) == "table" then
total_uptime = helpers.padd(total_uptime, padding[1])
uptime_days = helpers.padd(uptime_days, padding[2])
uptime_hours = helpers.padd(uptime_hours, padding[3])
uptime_minutes = helpers.padd(uptime_minutes, padding[4])
uptime_seconds = helpers.padd(uptime_seconds, padding[5])
else
total_uptime = helpers.padd(total_uptime, padding)
uptime_days = helpers.padd(uptime_days, padding)
uptime_hours = helpers.padd(uptime_hours, padding)
uptime_minutes = helpers.padd(uptime_minutes, padding)
uptime_seconds = helpers.padd(uptime_seconds, padding)
end
end
return {total_uptime, uptime_days, uptime_hours, uptime_minutes, uptime_seconds}
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local io = { popen = io.popen }
local string = { match = string.match }
-- }}}
-- Volume: provides volume levels of requested ALSA mixers
module("vicious.volume")
-- {{{ Volume widget type
function worker(format, channel)
-- Get mixer data
local f = io.popen("amixer get " .. channel)
local mixer = f:read("*all")
f:close()
-- Get volume level
local volume_level = string.match(mixer, "([%d]?[%d]?[%d])%%")
-- Don't break progressbars
if volume_level == nil then
return {0}
end
return {volume_level}
end
-- }}}

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----------------------------------------------------------
-- Licensed under the GNU General Public License version 2
-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
----------------------------------------------------------
-- {{{ Grab environment
local io = { popen = io.popen }
local string = {
find = string.find,
match = string.match
}
-- }}}
-- Wifi: provides wireless information for a requested interface
module("vicious.wifi")
-- {{{ Wireless widget type
function worker(format, iface)
-- Get data from iwconfig, on distributions where it is executable
-- by users, and /sbin or /usr/sbin is in their path
local f = io.popen("iwconfig " .. iface)
local iw = f:read("*all")
f:close()
-- Setup tables
local winfo = {
["{ssid}"] = "N/A",
["{mode}"] = "N/A",
["{chan}"] = "N/A",
["{rate}"] = "N/A",
["{link}"] = "N/A",
["{sign}"] = "N/A"
}
-- Check if iwconfig wasn't found, can't be executed or the
-- interface is not a wireless one
if iw == nil or string.find(iw, "No such device") then
return winfo
else
-- The output differs from system to system, some stats can
-- be separated by =, and not all drivers report all stats
winfo["{ssid}"] = -- SSID can have almost anything in it
string.match(iw, 'ESSID[=:]"([%w]+[%s]*[%w]*]*)"') or winfo["{ssid}"]
winfo["{mode}"] = -- Modes are simple, but also match the "-" in Ad-Hoc
string.match(iw, "Mode[=:]([%w%-]*)") or winfo["{mode}"]
winfo["{chan}"] = -- Channels are plain digits
string.match(iw, "Channel[=:]([%d]+)") or winfo["{chan}"]
winfo["{rate}"] = -- Bitrate can start with a space and we want to display Mb/s
string.match(iw, "Bit Rate[=:]([%s]?[%d%.]*[%s][%/%a]+)") or winfo["{rate}"]
-- winfo["{link}"] = -- Link quality can contain a slash: 32/100
-- string.match(iw, "Link Quality[=:]([%d]+[%/%d]*)") or winfo["{link}"]
winfo["{link}"] = -- * match only the first number, great data for a progressbar
string.match(iw, "Link Quality[=:]([%d]+)") or winfo["{link}"]
winfo["{sign}"] = -- Signal level can be a negative value, also display decibel notation
string.match(iw, "Signal level[=:]([%-%d]+[%s][%a]*)") or winfo["{sign}"]
end
return winfo
end
-- }}}