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#!/usr/bin/env bash
# focus-test - Trivial Focus testing tool
# Copyright (C) 2018 Keyboard.io, Inc.
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation, version 3.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <http://www.gnu.org/licenses/>.
set -e
OS=$(uname -s)
case ${OS} in
Linux)
DEVICE="${DEVICE:-/dev/ttyACM0}"
stty -F "${DEVICE}" 9600 raw -echo
;;
Darwin)
DEVICE="${DEVICE:-/dev/cu.usbmodemCkbio01E}"
stty -f "${DEVICE}" 9600 raw -echo
;;
*)
echo "Error Unknown OS : ${OS}" >&2
exit 1
;;
esac
exec 3<"${DEVICE}"
echo "$@" >"${DEVICE}"
while read -r line <&3; do
line="$(echo -n "${line}" | tr -d '\r')"
if [ "${line}" == "." ]; then
break
fi
echo "${line}"
done