USBcopy for PTP/MTP devices

75-usbcopy.rules

ACTION=="bind", SUBSYSTEMS=="usb", ATTRS{idVendor}=="04a9", ATTRS{idProduct}=="32d2", TAG+="systemd", ENV{SYSTEMD_WANTS}="usbcopy-canon-m50.service"
ACTION=="bind", SUBSYSTEMS=="usb", ATTRS{idVendor}=="04b0", ATTRS{idProduct}=="019a", TAG+="systemd", ENV{SYSTEMD_WANTS}="usbcopy-nikon-s9900.service"

#ACTION=="bind", SUBSYSTEMS=="usb", ATTRS{idVendor}=="0123", ATTRS{idProduct}=="4567", ENV{ID_SERIAL_SHORT}=="89abcdef", TAG+="systemd", ENV{SYSTEMD_WANTS}="usbcopy-example.service"

README.md

editor \
	/usr/local/sbin/usbcopy.sh \
	/etc/udev/rules.d/75-usbcopy.rules \
	/etc/systemd/system/usbcopy-canon-m50.service \
	/etc/systemd/system/usbcopy-nikon-s9900.service

chmod +x /usr/local/sbin/usbcopy.sh
apt install rsync gphotofs
udevadm control --reload
systemctl daemon-reload

usbcopy-canon-m50.service

[Service]
Type=oneshot
ExecStart=/usr/local/sbin/usbcopy.sh canon-m50

usbcopy-nikon-s9900.service

[Service]
Type=oneshot
ExecStart=/usr/local/sbin/usbcopy.sh nikon-s9900

usbcopy.sh

#!/bin/bash
# cs@fnx.li (2022-04-14)
# [PUBLIC] W/O WOL-SUPPORT!
set -euf -o pipefail

MOUNTPOINT="/mnt/gphotofs"
SOURCE="$MOUNTPOINT/store_"
DESTINATION="user@example.net:/path/to/destination/"
SUBJECT="[$(hostname -s)] USBcopy task ${1:-}:"
ARGS=()

case "${1:-}" in
	canon-m50)
		SOURCE+="00020001"
		DESTINATION+="canon/m50"
		;;

	nikon-s9900)
		SOURCE+="00010001"
		DESTINATION+="nikon/s9900"
		ARGS=( --exclude "NCFL" )
		;;

	*)
		echo "Usage: $0 <TASK>" >&2
		exit 1
		;;
esac

function error
{
	tee -a "$LOGFILE" >&2 <<< "ERROR: $1"
	exit 1
}

function cleanup
{
	if [[ -z "${1:-}" && -n "${LOGFILE:-}" ]]
	then
		[ "$finished" -eq 1 ] && subject="Finished..." || subject="FAILED!"
		mail -s "$SUBJECT $subject" "$(id -un)" < "$LOGFILE" || :
	fi

	fusermount -u "$MOUNTPOINT" 2>/dev/null || :
	rmdir "$MOUNTPOINT" 2>/dev/null || :
	rm -f "$LOGFILE"
}

finished=0
trap cleanup EXIT
LOGFILE=$(mktemp)
cleanup prepare

mkdir "$MOUNTPOINT"
gphotofs "$MOUNTPOINT"

if [ ! -d "$SOURCE" ]
then
	error "Source $SOURCE unavailable!"
fi

rsync \
	--rsh "ssh -o BatchMode=yes" \
	--one-file-system --recursive --times --size-only \
	--backup --suffix "~bkp-$(date --utc +%y%m%d-%H%M%S)" \
	--stats --verbose --human-readable "${ARGS[@]}" \
	"$SOURCE/" "$DESTINATION/" \
2>&1 | tee "$LOGFILE"
finished=1