todo.txt conky

conkyrc

update_interval 1.0
update_interval_on_battery 5.0
total_run_times 0

alignment bl
gap_x 2
gap_y 2

use_xft yes
override_utf8_locale yes
xftfont Liberation Sans:size=9

border_width 0
border_inner_margin 2
border_outer_margin 0
draw_shades yes

own_window yes
own_window_type desktop #Change to normal when using GNOME Shell
own_window_title Todo-Conky
own_window_hints undecorated,below,sticky,skip_taskbar,skip_pager
own_window_transparent yes
own_window_argb_visual yes

max_text_width 0
minimum_size 50 10

default_color FFFFFF
color1 FFFFFF

text_buffer_size 65536
double_buffer yes
no_buffers yes

lua_load ~/.conky/todo.txt/draw.lua
lua_draw_hook_pre draw 0x000000 0.35 0 16 0 0

TEXT
${execp ~/.conky/todo.txt/todoview.sh}

draw.lua

require 'cairo'

local function rgb_to_r_g_b(colour,alpha)
	return ((colour / 0x10000) % 0x100) / 255., ((colour / 0x100) % 0x100) / 255., (colour % 0x100) / 255., alpha
end

function conky_draw(bg_colour, bg_alpha, rad_tl, rad_tr, rad_br, rad_bl, v)
	if conky_window == nil then return end
	if v == nil then v = 0 end
	local w = conky_window.width
	local h = conky_window.height
	
	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)
	
	cairo_move_to(cr,rad_tl,0)
	cairo_line_to(cr,w-rad_tr,0)
	cairo_curve_to(cr,w,0,w,0,w,rad_tr)
	cairo_line_to(cr,w,h+v-rad_br)
	cairo_curve_to(cr,w,h+v,w,h+v,w-rad_br,h+v)
	cairo_line_to(cr,rad_bl,h+v)
	cairo_curve_to(cr,0,h+v,0,h+v,0,h+v-rad_bl)
	cairo_line_to(cr,0,rad_tl)
	cairo_curve_to(cr,0,0,0,0,rad_tl,0)
	cairo_close_path(cr)

	cairo_set_source_rgba(cr,rgb_to_r_g_b(bg_colour,bg_alpha))
	cairo_fill(cr)

	cairo_surface_destroy(cs)
	cairo_destroy(cr)
end

todoview.sh

#!/bin/bash
# Not as polished as I want it to be yet; I want to add the ability to use
# custom headers at some point and distribute this properly.

HEADER_START='${font Liberation Sans:size=9:weight=bold}'
HEADER_END='${font Liberation Sans:size=9}'
OTHER_HEADER="Other"
ARGS=(-d $HOME/.todo/config-conky -Pn)
TODAY=$(date -d "-4hours" +%Y-%m-%d)
DONERX="s:[0-9]* x [0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\} ::"
MATCH='(\$\{.*\})?([0-9]*) (.*)'
SWITCH='\2 \| \1\3'

while getopts rbo:p: OPT; do
case $OPT in
    r) SWITCH='\1\3 \| \2'; ALIGN='${alignr}'; ALNRX="s/^/$ALIGN/" ;;
    b) DONE_BOTTOM=yes ;;
    o) OTHER_HEADER="$OPTARG" ;;
    p) PADDING=$OPTARG ;;  # Conky likes to shift around a lot without this.
esac
done
shift $((OPTIND - 1))

DONE=$(todo ${ARGS[@]} lf done.txt $TODAY | head -n -2)
WORK=$(todo ${ARGS[@]} ls @work | head -n -2)
SCHOOL=$(todo ${ARGS[@]} ls @school | head -n -2)
OTHER=$(todo ${ARGS[@]} ls -@work -@school | head -n -2)

[[ -n "$PADDING" ]] && {
    LINES=0
    SEP=0
    [[ -n "$DONE" ]] && LINES=$(($LINES + $(echo "$DONE" | wc -l) + 1))
    [[ -n "$DONE" ]] && [[ -n "$WORK" ]] && LINES=$(($LINES + 1))
    [[ -n "$WORK" ]] && LINES=$(($LINES + $(echo "$WORK" | wc -l) + 1))
    [[ -n "$WORK" ]] && [[ -n "$SCHOOL" ]] && LINES=$(($LINES + 1))
    [[ -n "$SCHOOL" ]] && LINES=$(($LINES + $(echo "$SCHOOL" | wc -l) + 1))
    [[ -n "$SCHOOL" ]] && [[ -n "$OTHER" ]] && LINES=$(($LINES + 1))
    [[ -n "$OTHER" ]] && LINES=$(($LINES + $(echo "$OTHER" | wc -l) + 1))
    LINES=$(($PADDING - $LINES))
}

[[ -z "$DONE_BOTTOM" ]] && {
    [[ -n "$PADDING" ]] && for i in $(seq 1 $LINES); do echo; done
    [[ -n "$DONE" ]] && {
        echo "$HEADER_START$ALIGN-= Done Today =-$HEADER_END"
        echo "$DONE" | sed -e "s:[0-9]* x $TODAY ::" -e "$ALNRX"
        [[ -n "$WORK$SCHOOL$OTHER" ]] && echo '${color}'
    }
}
[[ -n "$WORK" ]] && {
    echo "$HEADER_START$ALIGN-= Work =-$HEADER_END"
    echo "$WORK" | sed -r -e 's: @work::gI' -e "s/$MATCH/$SWITCH/" -e "$ALNRX"
    [[ -n "$SCHOOL$OTHER" ]] && echo '${color}'
}
[[ -n "$SCHOOL" ]] && {
    echo "$HEADER_START$ALIGN-= School =-$HEADER_END"
    echo "$SCHOOL" | sed -r -e 's: @school::gI' -e "s/$MATCH/$SWITCH/" -e "$ALNRX"
    [[ -n "$OTHER" ]] && echo '${color}'
}
[[ -n "$OTHER" ]] && {
    echo "$HEADER_START$ALIGN-= $OTHER_HEADER =-$HEADER_END"
    echo "$OTHER" | sed -r -e "s/$MATCH/$SWITCH/" -e "$ALNRX"
}
[[ -n "$DONE_BOTTOM" ]] && {
    [[ -n "$DONE" ]] && {
        [[ -n "$OTHER" ]] && echo '${color}'
        echo "$HEADER_START$ALIGN-= Done Today =-$HEADER_END"
        echo "$DONE" | sed -e "$DONERX" -e "$ALNRX"
    }
    [[ -n "$PADDING" ]] && for i in $(seq 1 $LINES); do echo; done
}

So how can I install this?