home/.config/conky/gen.sh

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#! /bin/bash
# _
# ___ ___ _ __ | | ___ _ __ _ ___ _ __
# / __/ _ \| '_ \| |/ / | | |/ _` |/ _ \ '_ \
# | (_| (_) | | | | <| |_| | (_| | __/ | | |
# \___\___/|_| |_|_|\_\\__, |\__, |\___|_| |_|
# |___/ |___/
#
# conkygen.sh
# Create a Conky configuration file dynamically
#
# Copyright (c) 2020 Vintage Salt <rehashedsalt@cock.li>
# Distributed under the terms of the MIT License
#
set -e
# Read-only set-once variables
declare -r _name="$(basename -- "$0")"
# Options
declare _optout="${XDG_CONFIG_HOME:-$HOME/.config}/conky/conky.conf"
declare -i _optbar=1
declare -i _optgraph=1
declare -i _opthelp
declare -i _optverbose
declare -i _opttopitems=4
# Working variables
declare -a _args
declare _return
# Helper functions
log() {
# Print a line to the terminal if _optverbose is greater than $2
# $2 defaults to 0
# loglevel 0: Daily-use messages
# loglevel 1: Detailed but not quite debugging
# loglevel 2: Definitely debugging
[ -z "$1" ] && return 1
if (( _optverbose >= ${2:-0} )); then
printf "%s\\n" "$1"
fi
}
warn() {
# Print a yellow line to the terminal, respecting _optverbose
[ -z "$1" ] && return 1
if (( _optverbose >= ${2:-0} )); then
if [ -t 1 ]; then
printf "\\e[33m%s\\e[0m\\n" "$1"
else
printf "WARN: %s\\n" "$1"
fi
fi
}
error() {
# Print a red line to the terminal, exit if $2 is specified
[ -z "$1" ] && return 1
if [ -t 2 ]; then
printf "\\e[31m%s\\e[0m\\n" "$1" 1>&2
else
printf "ERROR: %s\\n" "$1" 1>&2
fi
[ -z "$2" ] && return
exit "${2:-1}"
}
has() {
# Parse out all arguments and try to find them in path
# If an argument cannot be found, set _return and fail
for prog in "$@"; do
if ! command -v "$prog" > /dev/null 2>&1; then
_return="$prog"
return 1
fi
done
return 0
}
# Core program functions
printhelp() {
cat << EOF
Usage: $_name [OPTION]...
Generate a conky.conf configuration file in the current directory
-o Specify output file. Defaults to
~/.config/conky/conky.conf
-b Hide bars
-g Hide graphs
-h Print this help text
-t Number of items to print in top lists. Defaults to 4
-v Print more status messages. Stacks
Copyright (c) 2020 rehashedsalt@cock.li
Licensed under the MIT license
EOF
}
step_header() {
# Clobber output file with header
cat << EOF > "$_optout"
-- vim: ts=4 sw=4 noet ai cindent syntax=lua
-- WARNING:
-- This file was generated with conkygen. See gen.sh if you need to edit this!
-- Any changes you make here can and probably will be clobbered!
EOF
}
step_config() {
# Append config to the output file
cat << EOF >> "$_optout"
conky.config = {
own_window = true,
own_window_title = 'Conky',
own_window_class = 'Conky',
own_window_type = 'desktop',
own_window_hints = 'undecorated,below,sticky,skip_taskbar,skip_pager',
own_window_argb_visual = true,
own_window_transparent = true,
own_window_colour = '000000',
double_buffer = true,
cpu_avg_samples = 2,
net_avg_samples = 2,
no_buffers = true,
update_interval = 1,
use_xft = true,
font = 'Roboto:style=Light:size=9',
default_color = '#fffcf6',
color1 = '232629', -- Background
color2 = 'fffcf6', -- Foreground
color3 = '4b5162', -- Background-alt
color4 = '11d116', -- Green (Battery)
color6 = '1abc9c', -- Cyan (Network)
color7 = 'fdbc4b', -- Yellow (Disk)
color8 = '1d99f3', -- Blue (CPU)
color9 = '9b59b6', -- Magenta (Memory)
alignment = 'bottom_left',
xinerama_head = 0,
minimum_height = 0,
minimum_width = 304,
border_width = 0,
border_outer_margin = 1,
border_inner_margin = 16,
gap_x = 32,
gap_y = 48,
format_human_readable = true,
temperature_unit = "celsius",
if_up_strictness = "link",
default_bar_height = 11,
default_bar_width = 130,
default_graph_height = 36,
draw_borders = true,
draw_outline = false,
draw_graph_borders = true,
draw_shades = false
}
EOF
}
step_text() {
local -r nproc="$(nproc)"
# Generate our actual functional Conky stuff
# Header
cat <<- 'EOF' >> "$_optout"
conky.text = [[
${font Roboto:style=Light:size=24}$alignr${no_update $nodename_short}$font
${font Roboto:style=Light:size=12}${acpitemp}°C$alignr${time %A, %B %d, %Y}$font
EOF
# CPU info
cat <<- 'EOF' >> "$_optout"
${color3}$hr$color
${font Roboto:style=Medium:size=9}CPU$font: $freq_g GHz$alignr$cpu%
EOF
if (( _optgraph > 0 )); then
local gpl=1
if (( nproc <= 2 )); then
gpl=1
elif (( nproc <= 4 )); then
gpl=2
elif (( nproc <= 8 )); then
gpl=4
else
gpl=8
fi
local width=$(( 400 / gpl ))
log "Generating $gpl graphs per row of CPU core stats" 1
log "Graphs will be $width wide" 2
local cpuinfo
for i in $(seq 1 "$gpl" "$nproc"); do
# Generate lines
local line
for j in $(seq 0 $(( gpl - 1 ))); do
# Generate graphs
local cpu=$(( i + j ))
log "Generating graph for CPU $cpu" 2
if [ -z "$line" ]; then
line="\${cpugraph cpu$cpu 36,$width}"
else
line="$line \${cpugraph cpu$cpu 36,$width}"
fi
done
# Trim whitespace
line="\${color8}${line%" "}\$color"
log "Appending line: $line" 2
cpuinfo="$cpuinfo$line\n"
unset line
done
while [ "$cpuinfo" != "${cpuinfo%\\n}" ]; do
cpuinfo="${cpuinfo%\\n}"
done
echo -e "$cpuinfo" >> "$_optout"
fi
for i in $(seq $_opttopitems); do
echo "\${color8}\${top name $i}\$color\$alignr\${top cpu $i}%" >> "$_optout"
done
# Memory info
cat <<- 'EOF' >> "$_optout"
${color3}$hr$color
${font Roboto:style=Medium:size=9}Memory$font: $mem / $memmax used$alignr$memperc%
EOF
if (( _optgraph > 0 )); then
echo -e '${color9}${memgraph}$color' >> "$_optout"
fi
if (( _optbar > 0 )); then
echo -e 'Memory$alignr$memeasyfree ${color9}${membar}$color' >> "$_optout"
if [ -n "$(swapon)" ]; then
echo "Swap\$alignr\$swapfree \${color9}\${swapbar}\$color" >> "$_optout"
fi
fi
for i in $(seq $_opttopitems); do
echo "\${color9}\${top_mem name $i}\$color\$alignr\${top_mem mem $i}%" >> "$_optout"
done
# Disk info
cat <<- 'EOF' >> "$_optout"
${color3}$hr$color
${font Roboto:style=Medium:size=9}Disk$font (R/W):$alignr${diskio /dev/sda}
EOF
if (( _optgraph > 0 )); then
echo '${color7}${diskiograph_read /dev/sda 36,200} ${diskiograph_write /dev/sda 36,200}$color' >> "$_optout"
fi
# Mountpoint detection
if (( _optbar > 0 )); then
for mountpoint in / /home /var /usr /opt /boot /boot/efi; do
if mountpoint $mountpoint > /dev/null 2>&1; then
echo "$mountpoint\$alignr\${fs_free $mountpoint} \${color7}\${fs_bar $mountpoint}\$color" >> "$_optout"
fi
done
fi
for i in $(seq $_opttopitems); do
echo "\${color7}\${top_io name $i}\$color\$alignr\${top_io io_perc $i}%" >> "$_optout"
done
# Networking
cat <<-'EOF' >>"$_optout"
${color3}$hr$color
${font Roboto:style=Medium:size=9}Network$font:${alignr}Default $gw_iface${if_up wlp1s0}
EOF
for interface in $(iw dev | awk '$1=="Interface"{print $2}'); do
echo "$interface (U/D): \$alignr\${addr $interface} / \${wireless_essid $interface}" >> "$_optout"
if (( _optgraph > 0 )); then
echo "\${color6}\${upspeedgraph $interface 36,200} \${downspeedgraph $interface 36,200}\$color" >> "$_optout"
fi
done
echo "]]" >> "$_optout"
}
genconfig() {
log "Generating config: $_optout"
step_header
step_config
step_text
}
# Main
main() {
# Parse out arguments
while [ -n "$1" ]; do
# Parse out flags
while getopts ":bgho:t:v" opt; do
case $opt in
b)
_optbar=0
;;
g)
_optgraph=0
;;
o)
_optout="$OPTARG"
;;
h)
_opthelp=1
;;
t)
_opttopitems="$OPTARG"
;;
v)
_optverbose+=1
;;
:)
error "Option requires argument: -$OPTARG" 2
;;
*)
error "Invalid option: -$OPTARG" 2
;;
esac
done
# Store arguments
shift $((OPTIND - 1))
if [ -n "$1" ]; then
_args+=("$1")
shift
fi
unset OPTIND
done
# Early hook for help
[ -n "$_opthelp" ] && printhelp && exit 0
# Validate critical options
if ! (( _opttopitems >= 0 )); then
error "Option -t requires non-negative integer as argument" 2
fi
# Validate core program dependencies
log "Validating dependencies" 2
if ! has awk basename iw seq; then
error "Failed to find program: $_return" 1
fi
# Do the do
genconfig
exit 0
}
main "$@"