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watch is a linux bash script to monitor file modification recursively and execute bash commands as changes occur
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#!/usr/bin/env bash | |
# script: watch | |
# author: Mike Smullin <mike@smullindesign.com> | |
# license: GPLv3 | |
# description: | |
# watches the given path for changes | |
# and executes a given command when changes occur | |
# usage: | |
# watch <path> <cmd...> | |
# | |
path=$1 | |
shift | |
cmd=$* | |
sha=0 | |
update_sha() { | |
sha=`ls -lR --time-style=full-iso $path | sha1sum` | |
} | |
update_sha | |
previous_sha=$sha | |
build() { | |
echo -en " building...\n\n" | |
$cmd | |
echo -en "\n--> resumed watching." | |
} | |
compare() { | |
update_sha | |
if [[ $sha != $previous_sha ]] ; then | |
echo -n "change detected," | |
build | |
previous_sha=$sha | |
else | |
echo -n . | |
fi | |
} | |
trap build SIGINT | |
trap exit SIGQUIT | |
echo -e "--> Press Ctrl+C to force build, Ctrl+\\ to exit." | |
echo -en "--> watching \"$path\"." | |
while true; do | |
compare | |
sleep 1 | |
done |
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this code can't be stopped in
git in windows
, ctrl + \ doesn't work.