Lua Scripts

Question

I hate to post such a seemingly mundane question but I can't seem to find my answer anywhere. I've tried other forums and I've tried google. I was hoping there was a conky specific thread here but I couldn't find one so I posted here.
Anyway, I've been revamping my conky and I copy/pasted one I found online as a model for me to modify. It has circle graphs and a large analog clock so it obviously has lua scripts associated with it. The lua parts aren't showing up. To be safe I've made sure that lua is installed as well as all dependecies. I installed all conky dependencies too just for the hell of it. I've also made sure that I'm calling the lua scripts from the right directory, and yes, I've restarted conky many times. Here are the files:
Conky
# Conky settings #
background no
update_interval 1
cpu_avg_samples 2
net_avg_samples 2
override_utf8_locale yes
double_buffer yes
no_buffers yes
text_buffer_size 2048
#imlib_cache_size 0
temperature_unit fahrenheit
# Window specifications #
own_window yes
own_window_type override
own_window_transparent #000000
own_window_transparent yes
own_window_hints undecorate,sticky,skip_taskbar,skip_pager,below
border_inner_margin 0
border_outer_margin 5
minimum_size 250 300
maximum_width 250
alignment tr
gap_x 10
gap_y 0
# Graphics settings #
draw_shades no
draw_outline no
draw_borders no
draw_graph_borders yes
# Text settings #
use_xft yes
xftfont caviar dreams:size=8
xftalpha 0.5
uppercase no
temperature_unit celsius
default_color FFFFFF
# Lua Load #
lua_load ~/.openbox/conky/conky_blue/clock_rings.lua
lua_draw_hook_pre clock_rings
TEXT
# Time and date
${voffset 7}${font Radio Space:size=16}${color 0ABFFF}${time %A}${font}$color${font Radio Space:size=38}${goto 167}${voffset -8} ${time %e}${font}
${font Radio Space:size=18}${voffset -30}${time %b}${font}${voffset -3} ${font Radio Space:size=20}${time %Y}${font}${color 0ABFFF} ${hr 1}
# Battery Circle
${color FFFFFF}${goto 209}${voffset 34}${battery_percent}%
${color 0ABFFF}${goto 202}${voffset 25}Battery
# CPU usage
${color #0ABFFF}${hr 1}$color
${color #0ABFFF}${voffset 6}Temp: $color ${acpitemp}°C
${color #0ABFFF}${voffset 6}Processes:$color $processes
${color #0ABFFF}${voffset 6}Running: $color $running_processes${goto 116}${voffset 8}${cpu cpu0}% ${color 0ABFFF}${goto 116}${voffset 13}CPU1$color${goto 191}${voffset -12}${cpu cpu1}% ${color 0ABFFF}${goto 191}${voffset 12}CPU2$color
${color #0ABFFF}${voffset -12}FREQ:$color ${freq}MHz
${color #0ABFFF}${voffset 6}Load:$color ${loadavg}
# Network
${color 0ABFFF}${voffset 2}${hr 1}
${color 0ABFFF}essid: $color$alignr${wireless_essid wlan0}
${color 0ABFFF}wlan0: $color$alignr${addr wlan0}
${color 0ABFFF}Current: $color${alignr}${execi 10 /sbin/iwconfig wlan0|grep Rate|cut -d"M" -f1|cut -b20-24} Mbits/sec
${color 0ABFFF}eth0: $color$alignr${addr eth0}
${color #0ABFFF}Down: $color${downspeed wlan0} k/s ${alignr}${color #0ABFFF}Up:$color ${upspeed wlan0} k/s
${downspeedgraph wlan0 30,120 000000 0ABFFF} ${alignr}${upspeedgraph wlan0 30,120 000000 0ABFFF}$color
${color #0ABFFF}Total:$color ${totaldown wlan0} ${alignr}${color #0ABFFF}Total:$color ${totalup wlan0}
# DISK/RAM/SWAP usage
${color 0ABFFF}${voffset 2}${hr 1}
${color FFFFFF}${goto 7}${voffset 39}${fs_used_perc /}%
${color 0ABFFF}${goto 7}DISK
${color FFFFFF}${goto 102}${voffset -27}${memperc}%
${color 0ABFFF}${goto 102}RAM
# Running processes
${color 0ABFFF}${voffset 2} ${hr 1}
${color #0ABFFF}${voffset 5}NAME${goto 122}PID${goto 163}CPU%${goto 210}MEM%$color${voffset 5}
${top name 1}${goto 115}${top pid 1}${goto 160}${top cpu 1}${goto 205}${top mem 1}
${top name 2}${goto 115}${top pid 2}${goto 160}${top cpu 2}${goto 205}${top mem 2}
${top name 3}${goto 115}${top pid 3}${goto 160}${top cpu 3}${goto 205}${top mem 3}
${top name 4}${goto 115}${top pid 5}${goto 160}${top cpu 5}${goto 205}${top mem 5}
# Computer info
${color 0ABFFF}${voffset 2}${hr 1}${voffset 5}
${color 0ABFFF}Hostname:$color${alignr}${nodename}
${color 0ABFFF}OS:$color${alignr}${pre_exec cat /etc/issue.net} $machine
${color 0ABFFF}Kernel:$color${alignr}${kernel}$color
${color 0ABFFF}${font Radio Space:size=20}ARCH${color FFFFFF}LINUX
${color 0ABFFF}${voffset -10}${hr 1}
Lua
# Clock Rings by Linux Mint (2012) reEdited by Altin.
# This script draws percentage meters as rings, and also draws clock hands if you want! It is fully customisable; all options are described in the script.
# This script is based off a combination of my clock.lua script and my rings.lua script.
# IMPORTANT: If you are using the 'cpu' function, it will cause a segmentation fault if it tries to draw a ring straight away.
# The if statement on line 324 uses a delay to make sure that this doesn't happen.
# It calculates the length of the delay by the number of updates since Conky started.
# Generally, a value of 5s is long enough, so if you update Conky every 1s,
# use update_num>5 in that if statement (the default).
# If you only update Conky every 2s, you should change it to update_num>3;
# conversely if you update Conky every 0.5s, you should use update_num>10.
# ALSO, if you change your Conky, is it best to use "killall conky; conky" to update it,
# otherwise the update_num will not be reset and you will get an error.
# To call this script in Conky, use the following in your conkyrc:
# lua_load ~/.fluxbox/conky/conky_blue/clock_rings.lua
# lua_draw_hook_pre clock_rings
# Changelog:
# * v1.0 --> Original release (30.09.2009)
# * v1.1p --> Jpope edit londonali1010 (05.10.2009)
# * vX 2011mint --> reEdit despot77 (18.02.2011)
# * vX 2012 --> Altin reEdit (22.07.2012)
# * Added weather function (Accu Weather)
# * Added battery monitoring
# * Syslog monitoring
# * Running processes monitoring
# * Rearanged rings
# * Exctra network functions/monitoring
# * Changed Fonts
settings_table = {
-- Edit this table to customise your rings.
-- You can create more rings simply by adding more elements to settings_table.
-- "name" is the type of stat to display; you can choose from 'cpu', 'memperc', 'fs_used_perc', 'battery_used_perc'.
name='time',
-- "arg" is the argument to the stat type, e.g. if in Conky you would write ${cpu cpu0}, 'cpu0' would be the argument. If you would not use an argument in the Conky variable, use ''.
arg='%I.%M',
-- "max" is the maximum value of the ring. If the Conky variable outputs a percentage, use 100.
max=12,
-- "bg_colour" is the colour of the base ring.
bg_colour=0xffffff,
-- "bg_alpha" is the alpha value of the base ring.
bg_alpha=0.15,
-- "fg_colour" is the colour of the indicator part of the ring.
fg_colour=0x0ABFFF,
-- "fg_alpha" is the alpha value of the indicator part of the ring.
fg_alpha=0.3,
-- "x" and "y" are the x and y coordinates of the centre of the ring, relative to the top left corner of the Conky window.
x=100, y=175,
-- "radius" is the radius of the ring.
radius=50,
-- "thickness" is the thickness of the ring, centred around the radius.
thickness=5,
-- "start_angle" is the starting angle of the ring, in degrees, clockwise from top. Value can be either positive or negative.
start_angle=0,
-- "end_angle" is the ending angle of the ring, in degrees, clockwise from top. Value can be either positive or negative, but must be larger than start_angle.
end_angle=360
name='battery_percent',
arg='',
max=100,
bg_colour=0xffffff,
bg_alpha=0.2,
fg_colour=0x0ABFFF,
fg_alpha=0.8,
x=222, y=110,
radius=27,
thickness=5,
start_angle=-90,
end_angle=270
name='time',
arg='%M.%S',
max=60,
bg_colour=0xffffff,
bg_alpha=0.1,
fg_colour=0x0ABFFF,
fg_alpha=0.4,
x=100, y=175,
radius=66,
thickness=5,
start_angle=0,
end_angle=360
name='time',
arg='%S',
max=60,
bg_colour=0xffffff,
bg_alpha=0.1,
fg_colour=0x0ABFFF,
fg_alpha=0.6,
x=100, y=175,
radius=72,
thickness=5,
start_angle=0,
end_angle=360
name='time',
arg='%d',
max=31,
bg_colour=0xffffff,
bg_alpha=0.1,
fg_colour=0x0ABFFF,
fg_alpha=0.8,
x=100, y=175,
radius=80,
thickness=5,
start_angle=-90,
end_angle=90
name='time',
arg='%m',
max=12,
bg_colour=0xffffff,
bg_alpha=0.1,
fg_colour=0x0ABFFF,
fg_alpha=1,
x=100, y=175,
radius=86,
thickness=5,
start_angle=-90,
end_angle=90
name='cpu',
arg='cpu0',
max=100,
bg_colour=0xffffff,
bg_alpha=0.3,
fg_colour=0x0ABFFF,
fg_alpha=0.8,
x=145, y=337,
radius=25,
thickness=5,
start_angle=-90,
end_angle=180
name='cpu',
arg='cpu1',
max=100,
bg_colour=0xffffff,
bg_alpha=0.3,
fg_colour=0x0ABFFF,
fg_alpha=0.8,
x=220, y=337,
radius=25,
thickness=5,
start_angle=-90,
end_angle=180
name='fs_used_perc',
arg='/',
max=100,
bg_colour=0xffffff,
bg_alpha=0.2,
fg_colour=0x0ABFFF,
fg_alpha=0.8,
x=35, y=590,
radius=25,
thickness=5,
start_angle=-90,
end_angle=180
name='memperc',
arg='',
max=100,
bg_colour=0xffffff,
bg_alpha=0.2,
fg_colour=0x0ABFFF,
fg_alpha=0.8,
x=130, y=590,
radius=25,
thickness=5,
start_angle=-90,
end_angle=180
name='swapperc',
arg='',
max=100,
bg_colour=0xffffff,
bg_alpha=0.2,
fg_colour=0x0ABFFF,
fg_alpha=0.8,
x=220, y=590,
radius=25,
thickness=5,
start_angle=-90,
end_angle=172
-- Use these settings to define the origin and extent of your clock.
clock_r=65
-- "clock_x" and "clock_y" are the coordinates of the centre of the clock, in pixels, from the top left of the Conky window.
clock_x=100
clock_y=175
show_seconds=true -- Change to true if you want the seconds hand
require 'cairo'
function rgb_to_r_g_b(colour,alpha)
return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
end
function window_background(colour,alpha)
return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
end
function draw_ring(cr,t,pt)
local w,h=conky_window.width,conky_window.height
local xc,yc,ring_r,ring_w,sa,ea=pt['x'],pt['y'],pt['radius'],pt['thickness'],pt['start_angle'],pt['end_angle']
local bgc, bga, fgc, fga=pt['bg_colour'], pt['bg_alpha'], pt['fg_colour'], pt['fg_alpha']
local angle_0=sa*(2*math.pi/360)-math.pi/2
local angle_f=ea*(2*math.pi/360)-math.pi/2
local t_arc=t*(angle_f-angle_0)
-- Draw background ring
cairo_arc(cr,xc,yc,ring_r,angle_0,angle_f)
cairo_set_source_rgba(cr,rgb_to_r_g_b(bgc,bga))
cairo_set_line_width(cr,ring_w)
cairo_stroke(cr)
-- Draw indicator ring
cairo_arc(cr,xc,yc,ring_r,angle_0,angle_0+t_arc)
cairo_set_source_rgba(cr,rgb_to_r_g_b(fgc,fga))
cairo_stroke(cr)
end
function draw_clock_hands(cr,xc,yc)
local secs,mins,hours,secs_arc,mins_arc,hours_arc
local xh,yh,xm,ym,xs,ys
secs=os.date("%S")
mins=os.date("%M")
hours=os.date("%I")
secs_arc=(2*math.pi/60)*secs
mins_arc=(2*math.pi/60)*mins+secs_arc/60
hours_arc=(2*math.pi/12)*hours+mins_arc/12
-- Draw hour hand
xh=xc+0.76*clock_r*math.sin(hours_arc)
yh=yc-0.72*clock_r*math.cos(hours_arc)
cairo_move_to(cr,xc,yc)
cairo_line_to(cr,xh,yh)
cairo_set_line_cap(cr,CAIRO_LINE_CAP_ROUND)
cairo_set_line_width(cr,5)
cairo_set_source_rgba(cr,1.0,1.0,1.0,1.0)
cairo_stroke(cr)
-- Draw minute hand
xm=xc+0.98*clock_r*math.sin(mins_arc)
ym=yc-1.02*clock_r*math.cos(mins_arc)
cairo_move_to(cr,xc,yc)
cairo_line_to(cr,xm,ym)
cairo_set_line_width(cr,3)
cairo_stroke(cr)
-- Draw seconds hand
if show_seconds then
xs=xc+1.1*clock_r*math.sin(secs_arc)
ys=yc-clock_r*math.cos(secs_arc)
cairo_move_to(cr,xc,yc)
cairo_line_to(cr,xs,ys)
cairo_set_line_width(cr,1)
cairo_stroke(cr)
end
end
function conky_clock_rings()
local function setup_rings(cr,pt)
local str=''
local value=0
str=string.format('${%s %s}',pt['name'],pt['arg'])
str=conky_parse(str)
value=tonumber(str)
pct=value/pt['max']
draw_ring(cr,pct,pt)
end
-- Check that Conky has been running for at least 5s
if conky_window==nil then return end
local cs=cairo_xlib_surface_create(conky_window.display,conky_window.drawable,conky_window.visual, conky_window.width,conky_window.height)
local cr=cairo_create(cs)
local updates=conky_parse('${updates}')
update_num=tonumber(updates)
if update_num>5 then
for i in pairs(settings_table) do
setup_rings(cr,settings_table[i])
end
end
draw_clock_hands(cr,clock_x,clock_y)
end
To be honest I'm not even sure what to look for. I'm not sure that it's a problem with the code because as I've said, I copy/pasted as a template for modifying. Thanks for reading.
EDIT: I've been starting conky from a different directory instead of starting it with ~/.conkyrc and I just copied the conky I'm using to ~/.conkyrc and killed/restarted it and noticed this error:
Conky: /home/'user'/.conkyrc: 53: no such configuration: 'lua_load'
Conky: /home/'user'/.conkyrc: 54: no such configuration: 'lua_draw_hook_pre'
cat: /etc/issue.net: No such file or directory
Conky: desktop window (c1) is root window
Conky: window type - override
Conky: drawing to created window (0x1000001)
Conky: drawing to double buffer
The top two lines seem to be the most relevant but I'm not sure what to do about it.
Last edited by xworld (2012-12-28 01:06:01)

Answer 1

::facepalm::
No I didn't. Although I just tried now and it failed. It said I needed toluapp before I could install conky-lua. The trouble is that when I try to install toluapp it fails. I looked in the AUR page and it shows that it's out of date. Is there a workaround for this?
EDIT: Here's the error if it helps.
==> Making package: toluapp 1.0.93-5 (Thu Dec 27 21:23:18 UTC 2012)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving Sources...
-> Downloading tolua++-1.0.93.tar.bz2...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 160k 100 160k 0 0 80172 0 0:00:02 0:00:02 --:--:-- 88576
-> Found config_linux.py
==> Validating source files with md5sums...
tolua++-1.0.93.tar.bz2 ... Passed
config_linux.py ... Passed
==> Extracting Sources...
-> Extracting tolua++-1.0.93.tar.bz2 with bsdtar
==> Starting build()...
scons: Reading SConscript files ...
scons: warning: The Options class is deprecated; use the Variables class instead.
File "/home/lucid/conf/pkgs/tmp/toluapp/src/tolua++-1.0.93/SConstruct", line 19, in <module>
('********* tolua is ', 'bin/tolua++_bootstrap')
scons: warning: The env.Copy() method is deprecated; use the env.Clone() method instead.
File "/home/lucid/conf/pkgs/tmp/toluapp/src/tolua++-1.0.93/src/tests/SCsub", line 2, in <module>
scons: done reading SConscript files.
scons: Building targets ...
gcc -o src/bin/tolua.o -c -O2 -ansi -Wall -fPIC -Iinclude src/bin/tolua.c
src/bin/tolua.c: In function 'add_extra':
src/bin/tolua.c:70:2: warning: implicit declaration of function 'luaL_getn' [-Wimplicit-function-declaration]
gcc -o src/bin/toluabind_default.o -c -O2 -ansi -Wall -fPIC -Iinclude src/bin/toluabind_default.c
gcc -o src/lib/tolua_event.o -c -O2 -ansi -Wall -fPIC -Iinclude src/lib/tolua_event.c
src/lib/tolua_event.c: In function 'storeatubox':
src/lib/tolua_event.c:26:3: warning: implicit declaration of function 'lua_getfenv' [-Wimplicit-function-declaration]
src/lib/tolua_event.c:31:4: warning: implicit declaration of function 'lua_setfenv' [-Wimplicit-function-declaration]
gcc -o src/lib/tolua_is.o -c -O2 -ansi -Wall -fPIC -Iinclude src/lib/tolua_is.c
gcc -o src/lib/tolua_map.o -c -O2 -ansi -Wall -fPIC -Iinclude src/lib/tolua_map.c
src/lib/tolua_map.c: In function 'tolua_bnd_setpeer':
src/lib/tolua_map.c:266:2: warning: implicit declaration of function 'lua_setfenv' [-Wimplicit-function-declaration]
src/lib/tolua_map.c: In function 'tolua_bnd_getpeer':
src/lib/tolua_map.c:274:2: warning: implicit declaration of function 'lua_getfenv' [-Wimplicit-function-declaration]
src/lib/tolua_map.c: In function 'tolua_usertype':
src/lib/tolua_map.c:398:2: warning: passing argument 2 of 'tolua_newmetatable' discards 'const' qualifier from pointer target type [enabled by default]
src/lib/tolua_map.c:28:12: note: expected 'char *' but argument is of type 'const char *'
src/lib/tolua_map.c: In function 'tolua_beginmodule':
src/lib/tolua_map.c:414:19: error: 'LUA_GLOBALSINDEX' undeclared (first use in this function)
src/lib/tolua_map.c:414:19: note: each undeclared identifier is reported only once for each function it appears in
src/lib/tolua_map.c: In function 'tolua_module':
src/lib/tolua_map.c:448:19: error: 'LUA_GLOBALSINDEX' undeclared (first use in this function)
src/lib/tolua_map.c: In function 'tolua_dobuffer':
src/lib/tolua_map.c:699:36: warning: value computed is not used [-Wunused-value]
scons: *** [src/lib/tolua_map.o] Error 1
scons: building terminated because of errors.
==> ERROR: A failure occurred in build().
Aborting...
Last edited by xworld (2012-12-28 03:24:41)