i use arch btw
Add simple stopwatch
from https://github.com/coryfklein/sw
+65
+65
bin/bin/sw
+65
bin/bin/sw
···
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#!/usr/bin/env bash
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set -e
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# Usage:
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# sw
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# - start a stopwatch from 0, save start time
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# sw [-r|--resume]
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# - start a stopwatch from the last saved start time (or current time if no last saved start time exists)
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# - "-r" stands for --resume
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function finish {
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tput cnorm # Restore cursor
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exit 0
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}
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trap finish EXIT
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# Use GNU date if possible as it's most likely to have nanoseconds available.
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if hash gdate 2>/dev/null; then
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GNU_DATE=gdate
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elif date --version | grep 'GNU coreutils' >/dev/null; then
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GNU_DATE=date
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fi
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function datef {
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if [[ -z "$GNU_DATE" ]]; then
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date "$@"
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else
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$GNU_DATE "$@"
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fi
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}
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# Display nanoseconsd only if supported
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if datef +%N | grep -q N 2>/dev/null; then
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DATE_FORMAT="+%H:%M:%S"
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else
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DATE_FORMAT="+%H:%M:%S.%N"
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NANOS_SUPPORTED=true
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fi
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tput civis # hide cursor
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# If -r is passed, use saved start time from ~/.sw
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if [[ "$1" == "-r" || "$1" == "--resume" ]]; then
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if [[ ! -f $HOME/.sw ]]; then
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datef +%s > $HOME/.sw
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fi
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START_TIME=$(cat $HOME/.sw)
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else
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START_TIME=$(datef +%s)
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echo -n $START_TIME > $HOME/.sw
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fi
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# GNU date accepts the input date differently than BSD
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if [[ -z "$GNU_DATE" ]]; then
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DATE_INPUT="-v-${START_TIME}S"
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else
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DATE_INPUT="--date now-${START_TIME}sec"
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fi
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while [ true ]; do
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STOPWATCH=$(TZ=UTC datef $DATE_INPUT $DATE_FORMAT | ( [[ "$NANOS_SUPPORTED" ]] && sed 's/.\{7\}$//' || cat ) )
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printf "\r\e%s" $STOPWATCH
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sleep 0.03
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done