tmux-kanagawa/scripts/cpu_info.sh
2021-03-27 15:41:07 -03:00

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#!/usr/bin/env bash
# setting the locale, some users have issues with different locales, this forces the correct one
export LC_ALL=en_US.UTF-8
# function for getting the refresh rate
get_tmux_option() {
local option=$1
local default_value=$2
local option_value=$(tmux show-option -gqv "$option")
if [ -z $option_value ]; then
echo $default_value
else
echo $option_value
fi
}
# normalize the percentage string to always have a length of 5
normalize_percent_len() {
# the max length that the percent can reach, which happens for a two digit number with a decimal house: "99.9%"
max_len=5
percent_len=${#1}
let diff_len=$max_len-$percent_len
# if the diff_len is even, left will have 1 more space than right
let left_spaces=($diff_len+1)/2
let right_spaces=($diff_len)/2
printf "%${left_spaces}s%s%${right_spaces}s\n" "" $1 ""
}
get_percent()
{
case $(uname -s) in
Linux)
percent=$(LC_NUMERIC=en_US.UTF-8 top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1"%"}')
normalize_percent_len $percent
;;
Darwin)
cpuvalue=$(ps -A -o %cpu | awk -F. '{s+=$1} END {print s}')
cpucores=$(sysctl -n hw.logicalcpu)
cpuusage=$(( cpuvalue / cpucores ))
percent="$cpuusage%"
normalize_percent_len $percent
;;
CYGWIN*|MINGW32*|MSYS*|MINGW*)
# TODO - windows compatability
;;
esac
}
main()
{
# storing the refresh rate in the variable RATE, default is 5
RATE=$(get_tmux_option "@dracula-refresh-rate" 5)
cpu_percent=$(get_percent)
echo "CPU $cpu_percent"
sleep $RATE
}
# run main driver
main