121 lines
2.6 KiB
Bash
Executable file
121 lines
2.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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# setting the locale, some users have issues with different locales, this forces the correct one
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export LC_ALL=en_US.UTF-8
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current_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
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source "$current_dir/utils.sh"
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get_cpids_linux() {
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local ppid="$1"
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local cpids
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local cpid
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echo "$ppid"
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cpids="$(pgrep -P "$ppid")"
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for cpid in $cpids; do
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get_cpids_linux "$cpid"
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done
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}
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get_cpids_unix() {
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local ppid="$1"
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local cpids
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local cpid
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echo "$ppid"
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cpids="$(pgrep -aP "$ppid")"
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for cpid in $cpids; do
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get_cpids_unix "$cpid"
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done
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}
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kb_to_mb() {
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if [ $# == 0 ]; then
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read -r num
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else
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num="$1"
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fi
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bc <<< "scale=3;$num/1024"
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}
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kb_to_gb() {
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if [ $# == 0 ]; then
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read -r num
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else
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num="$1"
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fi
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bc <<< "scale=6;$num/1048576"
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}
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round() {
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if [ $# == 1 ]; then
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read -r num
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scale="$1"
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elif [ $# == 2 ]; then
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num="$1"
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scale="$2"
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fi
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printf "%.${scale}f" "${num}"
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}
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get_tmux_ram_usage()
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{
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local pid
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local pids
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local total_mem_kb=0
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local total_mem_mb=0
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local total_mem_gb=0
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pid="$(tmux display-message -pF '#{pid}')"
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case $(uname -s) in
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Linux)
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if command -v pstree > /dev/null; then
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pids="$(pstree -p "$pid" | tr -d '\n' | sed -rn -e 's/[^()]*\(([0-9]+)\)[^()]*/\1,/g' -e 's/,$//p')"
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else
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pids="$(get_cpids_linux "$pid" | tr '\n' ',')"
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fi
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total_mem_kb="$(ps -o rss= -p "$pids" | paste -sd+ | bc)"
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;;
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Darwin)
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if command -v pstree > /dev/null; then
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pids="$(pstree "$pid" | sed -En 's/[^0-9]+([0-9]+) .*/\1/p' | tr '\n' ',')"
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else
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pids="$(get_cpids_unix "$pid" | tr '\n' ',')"
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fi
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total_mem_kb="$(ps -o rss= -p "$pids" | paste -sd+ - | bc)"
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;;
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FreeBSD)
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# TODO check FreeBSD compatibility
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if command -v pstree > /dev/null; then
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pids="$(pstree "$pid" | sed -En 's/[^0-9]+([0-9]+) .*/\1/p' | tr '\n' ',')"
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else
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pids="$(get_cpids_unix "$pid" | tr '\n' ',')"
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fi
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total_mem_kb="$(ps -o rss= -p "$pids" | paste -sd+ - | bc)"
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;;
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CYGWIN*|MINGW32*|MSYS*|MINGW*)
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# TODO - windows compatability
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;;
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esac
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total_mem_mb=$(kb_to_mb "$total_mem_kb" | round 0)
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total_mem_gb=$(kb_to_gb "$total_mem_kb" | round 0)
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if (( total_mem_gb > 0)); then
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echo "${total_mem_gb}GB"
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elif (( total_mem_mb > 0 )); then
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echo "${total_mem_mb}MB"
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else
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echo "${total_mem_kb}kB"
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fi
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}
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main()
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{
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ram_label=$(get_tmux_option "@kanagawa-tmux-ram-usage-label" "MEM")
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ram_usage=$(get_tmux_ram_usage)
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echo "$ram_label $ram_usage"
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}
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#run main driver
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main
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