tmux-kanagawa/scripts/ram_info.sh

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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
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current_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
source $current_dir/utils.sh
get_ratio()
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{
case $(uname -s) in
Linux)
usage="$(free -h | awk 'NR==2 {print $3}')"
total="$(free -h | awk 'NR==2 {print $2}')"
formated="${usage}/${total}"
echo "${formated//i/B}"
;;
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Darwin)
# Get used memory blocks with vm_stat, multiply by page size to get size in bytes, then convert to MiB
used_mem=$(vm_stat | grep ' active\|wired ' | sed 's/[^0-9]//g' | paste -sd ' ' - | awk -v pagesize=$(pagesize) '{printf "%d\n", ($1+$2) * pagesize / 1048576}')
# System Profiler performs an activation lock check, which can result in
# time outs or a lagged response. (~10 seconds)
# total_mem=$(system_profiler SPHardwareDataType | grep "Memory:" | awk '{print $2 $3}')
total_mem=$(sysctl -n hw.memsize | awk '{print $0/1024/1024/1024 " GB"}')
if ((used_mem < 1024 )); then
echo "${used_mem}MB/$total_mem"
else
memory=$((used_mem/1024))
echo "${memory}GB/$total_mem"
fi
;;
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FreeBSD)
# Looked at the code from neofetch
hw_pagesize="$(sysctl -n hw.pagesize)"
mem_inactive="$(($(sysctl -n vm.stats.vm.v_inactive_count) * hw_pagesize))"
mem_unused="$(($(sysctl -n vm.stats.vm.v_free_count) * hw_pagesize))"
mem_cache="$(($(sysctl -n vm.stats.vm.v_cache_count) * hw_pagesize))"
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free_mem=$(((mem_inactive + mem_unused + mem_cache) / 1024 / 1024))
total_mem=$(($(sysctl -n hw.physmem) / 1024 / 1024))
used_mem=$((total_mem - free_mem))
echo $used_mem
if ((used_mem < 1024 )); then
echo "${used_mem}MB/$total_mem"
else
memory=$((used_mem/1024))
echo "${memory}GB/$total_mem"
fi
;;
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OpenBSD)
# vmstat -s | grep "pages managed" | sed -ne 's/^ *\([0-9]*\).*$/\1/p'
# Looked at the code from neofetch
hw_pagesize="$(pagesize)"
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used_mem=$(( (
$(vmstat -s | grep "pages active$" | sed -ne 's/^ *\([0-9]*\).*$/\1/p') +
$(vmstat -s | grep "pages inactive$" | sed -ne 's/^ *\([0-9]*\).*$/\1/p') +
$(vmstat -s | grep "pages wired$" | sed -ne 's/^ *\([0-9]*\).*$/\1/p') +
$(vmstat -s | grep "pages zeroed$" | sed -ne 's/^ *\([0-9]*\).*$/\1/p') +
0) * hw_pagesize / 1024 / 1024 ))
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total_mem=$(($(sysctl -n hw.physmem) / 1024 / 1024))
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#used_mem=$((total_mem - free_mem))
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total_mem=$(($total_mem/1024))
if (( $used_mem < 1024 )); then
echo $used_mem\M\B/$total_mem\G\B
else
memory=$(($used_mem/1024))
echo $memory\G\B/$total_mem\G\B
fi
;;
CYGWIN*|MINGW32*|MSYS*|MINGW*)
# TODO - windows compatability
;;
esac
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}
main()
{
ram_label=$(get_tmux_option "@kanagawa-ram-usage-label" "RAM")
ram_ratio=$(get_ratio)
echo "$ram_label $ram_ratio"
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}
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#run main driver
main