Ampy script to mirror current directory to a microcontroller

am.sh

#!/bin/sh
#
# Ampy script to mirror current directory to a microcontroller

export AMPY_PORT=/dev/tty.SLAB_USBtoUART
export AMPY_BAUD=115200

function log() {
	echo "$*" >&2
}

function fail() {
	echo "Error: $*" >&2; exit 1
}

function copyFiles() {
	log "\nCopying..."
	for dirEntry in `ls`; do
		ampy put "$dirEntry" && log "$dirEntry copied" || fail "Unable to copy '$dirEntry' to the MC. Aborting..."
	done
}

function clean() {
	log "\nCleaning..."
	for dirEntry in `ampy ls`; do
		log "Removing '$dirEntry' ..."
		ampy rm "$dirEntry" &>/dev/null && continue
		ampy rmdir "$dirEntry" &>/dev/null && continue
	done
}

if [[ "$1" == "-c" ]]; then 
	log "Clean & Copy"
	clean
	copyFiles
elif [[ "$1" == "-co" ]]; then 
	log "Clean only"
	clean
else
	log "Copy"
	copyFiles
fi