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''
# airport.sh - shared file store
#
# # Environment variables
# `AIRPORT_HOST` - host to rsync to
# `AIRPORT_USER` - username to connect with
# `AIRPORT_DIR` - defaults to `~/airport`, directory to use
# `AIRPORT_SAFEOP` - 'safe operations' mode, which doesn't delete files
set -euo pipefail
die () {
echo >&2 "$@"
exit 1
}
confirm() {
read -r -p "''${1:-Proceed?} [y/N] " response
case "$response" in
[yY][eE][sS]|[yY])
true
;;
*)
false
;;
esac
}
delay() {
DELAY_SECONDS=''${2:-5}
echo "''${1:-This script will perform some potentionally destructive actions.}"
echo "Waiting $DELAY_SECONDS second(s) before proceeding..."
sleep $DELAY_SECONDS
}
bin_exists() {
[ -z $1 ] && die "FATAL: called bin_exists() without arguments (expected 1)"
if command -v $1 &> /dev/null
then
true
else
false
fi
}
[ -f $HOME/.airport-env ] && source $HOME/.airport-env
HOST=''${AIRPORT_HOST:?"AIRPORT_HOST needs to be set"}
USER=''${AIRPORT_USER:?"AIRPORT_USER needs to be set"}
DIR=''${AIRPORT_DIR:-"$HOME/airport"}
SAFEOP=''${AIRPORT_SAFEOP:-1}
[ "$#" -eq 0 ] && die "FATAL: expected exactly 1 argument, $# provided"
if [ ! -d $DIR ]
then
confirm "$DIR doesn't exist, create and proceed?" || die "FATAL: $DIR doesn't exist"
mkdir -p $DIR
fi
bin_exists "rsync" || die "FATAL: couldn't find rsync"
opts=(-au --stats --info=progress2)
[ $SAFEOP -eq 1 ] && opts+=(--delete-after)
case "$1" in
send)
delay "Airport will run 'rsync -au' to $DIR to SEND"
rsync ''${opts[@]} --mkpath $DIR/ $USER@$HOST:airport
;;
recv)
delay "Airport will run 'rsync -au' to $DIR to RECV"
rsync ''${opts[@]} $USER@$HOST:airport/ $DIR
;;
configure)
delay "Will write configuration to $HOME/.airport-env"
cat >$HOME/.airport-env <<EOF
AIRPORT_USER=$USER
AIRPORT_HOST=$HOST
AIRPORT_DIR=$DIR
EOF
;;
*) printf "Unknown subcommand $1, supported subcommands:\n"
printf '\tsend\n'
printf '\trecv\n'
printf '\tconfigure'
die
;;
esac
exit 0
''
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