This is a collection of dotfiles and scripts for my bspwm setup
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180 lines
3.5 KiB

#!/bin/sh
# Control the processor characteristics
# Depends: -
b="$(tput bold)"
u="$(tput smul)"
red="$(tput setf 4)"
n="$(tput sgr0)"
help() {
cat << EOF
${b}NAME${n}
cpuctl - control the processor characteristics
${b}SYNOPSIS${n}
${b}cpuctl${n} ${u}OPERATION${n} [${u}OPTION${n}] [${u}ARG${n}]
${b}OPERATIONS${n}
${b}-E${n}, ${b}--energy${n}
Perform ${u}OPTION${n} on energy performance mode.
${b}-G${n}, ${b}--governor${n}
Perform ${u}OPTION${n} on scaling governor.
${b}-h${n}, ${b}--help${n} Display usage message and exit.
${b}OPTIONS (APPLY TO -E or -G)${n}
${b}-l${n}, ${b}--list${n}
List the available items.
${b}-g${n}, ${b}--get${n}
Get the current item.
${b}-s${n}[${u}ITEM${n}], ${b}--set [${n}${u}ITEM${n}]
Set the ${u}ITEM${n}, prompt for ${u}ITEM${n} if left empty.
EOF
}
# Exit if no option is provided
[ "$#" -eq 0 ] && help && exit 1
# Main program
# --------------------------------------
listItems()
{
if [ "$mode" = "energy" ]; then
modes="/sys/devices/system/cpu/cpufreq/policy0/energy_performance_available_preferences"
elif [ "$mode" = "governor" ]; then
modes="/sys/devices/system/cpu/cpufreq/policy0/scaling_available_governors"
fi
tr ' ' '\n' < "$modes" | sed '/^$/d' \
| awk -v line="$1" '{ if (line == "") print NR") "$0; else if (NR == line) print $0; }'
}
getItem()
{
if [ "$mode" = "energy" ]; then
mode="/sys/devices/system/cpu/cpufreq/policy0/energy_performance_preference"
elif [ "$mode" = "governor" ]; then
mode="/sys/devices/system/cpu/cpufreq/policy0/scaling_governor"
fi
cat "$mode"
}
setItem()
{
select="$1"
if [ -z "$select" ]; then
listItems
printf "Enter the number to set: "
read -r select
fi
item="$(listItems "$select")"
if [ "$mode" = "energy" ]; then
message="energy performance mode"
type="/sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference"
elif [ "$mode" = "governor" ]; then
message="scaling governor"
type="/sys/devices/system/cpu/cpufreq/policy*/scaling_governor"
fi
if ! sudo -v; then
echo "${b}${red}Error:${n} setting $message requires root privileges." >&2
exit 1
fi
for i in $type; do
echo "$item" | sudo tee "$i" > /dev/null
done
}
# Option parsing
# --------------------------------------
script="$(basename "$0")"
parsed="$(getopt --options "hEGlgs::" \
--longoptions "help,energy,governor,list,get,set::" \
-n "$script" -- "$@" 2>&1)"
result="$?"
# Exit if invalid option is provided
if [ "$result" -ne 0 ]; then
echo "$parsed" | head -n 1 >&2
echo "Try './$script --help' for more information." >&2
exit 1
fi
eval set -- "$parsed"
while true; do
case "$1" in
-h)
help
exit
;;
-E | --energy)
if [ -n "$mode" ]; then
echo "${b}${red}Error:${n} only one operation may be used at a time." >&2
exit 1
fi
mode="energy"
shift
;;
-G | --governor)
if [ -n "$mode" ]; then
echo "${b}${red}Error:${n} only one operation may be used at a time." >&2
exit 1
fi
mode="governor"
shift
;;
-l | --list)
option="list"
shift
;;
-g | --get)
option="get"
shift
;;
-s | --set)
option="set"
shift
;;
--)
shift
break
;;
*)
break
;;
esac
done
# Execute
# --------------------------------------
if [ -z "$mode" ]; then
echo "${b}${red}Error:${n} no operation specified (use -h for help)" >&2
exit 1
fi
if [ "$mode" = "energy" ] || [ "$mode" = "governor" ]; then
case "$option" in
list | "")
listItems
;;
get)
getItem
;;
set)
setItem "$1"
;;
esac
fi