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#!/usr/bin/env sh
help() {
cat <<EOF
An simple watch script, useful to see the changes in the document as it evolves.
USAGE:
watch.sh [OPTIONS] [COMMAND]
OPTIONS:
--help | -h
Display this help and exit.
--open [READER] | -o [READER]
Open the build PDF in READER before waiting for changes.
READER defaults to the READER environment variable or
'zathura' if the env variable is unset.
--sleeptime [T] | -s [T]
How long to sleep between each build attempt in seconds. The
time defaults to 10 seconds.
ARGUMENTS:
READER := [[echo "\${READER-zathura}"]]
The reader to open the build PDF with.
T := [[seq 1 100]]
The time to sleep between each build attempt.
EOF
}
reader=""
time="10"
for arg in "$@"; do
case "$arg" in
"--help" | "-h")
help
exit 0
;;
"--open" | "-o")
shift 1
reader="$1"
if [ -z "$reader" ]; then
reader="${READER-zathura}"
else
shift 1
fi
;;
"--sleeptime" | "-s")
shift 1
time="$1"
if [ -z "$time" ]; then
time=10
else
shift 1
fi
;;
*)
echo "'$1' is not a recognized option! See '--help' for more detail." 1>&2
exit 1
;;
esac
done
[ -n "$reader" ] && "$reader" ./build/%INIT_APPLICATION_NAME.pdf &
while true; do
./build.sh
sleep "$time"
done
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