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Merge pull request #220 from aaronkollasch/feat/tmux-ram-usage
Add tmux-ram-usage plugin
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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" | ||
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get_cpids_linux() { | ||
local ppid="$1" | ||
local cpids | ||
local cpid | ||
echo "$ppid" | ||
cpids="$(pgrep -P "$ppid")" | ||
for cpid in $cpids; do | ||
get_cpids_linux "$cpid" | ||
done | ||
} | ||
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get_cpids_unix() { | ||
local ppid="$1" | ||
local cpids | ||
local cpid | ||
echo "$ppid" | ||
cpids="$(pgrep -aP "$ppid")" | ||
for cpid in $cpids; do | ||
get_cpids_unix "$cpid" | ||
done | ||
} | ||
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kb_to_mb() { | ||
if [ $# == 0 ]; then | ||
read -r num | ||
else | ||
num="$1" | ||
fi | ||
bc <<< "scale=3;$num/1024" | ||
} | ||
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kb_to_gb() { | ||
if [ $# == 0 ]; then | ||
read -r num | ||
else | ||
num="$1" | ||
fi | ||
bc <<< "scale=6;$num/1048576" | ||
} | ||
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round() { | ||
if [ $# == 1 ]; then | ||
read -r num | ||
scale="$1" | ||
elif [ $# == 2 ]; then | ||
num="$1" | ||
scale="$2" | ||
fi | ||
printf "%.${scale}f" "${num}" | ||
} | ||
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get_tmux_ram_usage() | ||
{ | ||
local pid | ||
local pids | ||
local total_mem_kb=0 | ||
local total_mem_mb=0 | ||
local total_mem_gb=0 | ||
pid="$(tmux display-message -pF '#{pid}')" | ||
case $(uname -s) in | ||
Linux) | ||
if command -v pstree > /dev/null; then | ||
pids="$(pstree -p "$pid" | tr -d '\n' | sed -rn -e 's/[^()]*\(([0-9]+)\)[^()]*/\1,/g' -e 's/,$//p')" | ||
else | ||
pids="$(get_cpids_linux "$pid" | tr '\n' ',')" | ||
fi | ||
total_mem_kb="$(ps -o rss= -p "$pids" | paste -sd+ | bc)" | ||
;; | ||
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Darwin) | ||
if command -v pstree > /dev/null; then | ||
pids="$(pstree "$pid" | sed -En 's/[^0-9]+([0-9]+) .*/\1/p' | tr '\n' ',')" | ||
else | ||
pids="$(get_cpids_unix "$pid" | tr '\n' ',')" | ||
fi | ||
total_mem_kb="$(ps -o rss= -p "$pids" | paste -sd+ - | bc)" | ||
;; | ||
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FreeBSD) | ||
# TODO check FreeBSD compatibility | ||
if command -v pstree > /dev/null; then | ||
pids="$(pstree "$pid" | sed -En 's/[^0-9]+([0-9]+) .*/\1/p' | tr '\n' ',')" | ||
else | ||
pids="$(get_cpids_unix "$pid" | tr '\n' ',')" | ||
fi | ||
total_mem_kb="$(ps -o rss= -p "$pids" | paste -sd+ - | bc)" | ||
;; | ||
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CYGWIN*|MINGW32*|MSYS*|MINGW*) | ||
# TODO - windows compatability | ||
;; | ||
esac | ||
total_mem_mb=$(kb_to_mb "$total_mem_kb" | round 0) | ||
total_mem_gb=$(kb_to_gb "$total_mem_kb" | round 0) | ||
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if (( total_mem_gb > 0)); then | ||
echo "${total_mem_gb}GB" | ||
elif (( total_mem_mb > 0 )); then | ||
echo "${total_mem_mb}MB" | ||
else | ||
echo "${total_mem_kb}kB" | ||
fi | ||
} | ||
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main() | ||
{ | ||
ram_label=$(get_tmux_option "@dracula-tmux-ram-usage-label" "MEM") | ||
ram_usage=$(get_tmux_ram_usage) | ||
echo "$ram_label $ram_usage" | ||
} | ||
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#run main driver | ||
main |