Improve the setup helpers

.deploy/send-it.sh

@@ -5,8 +5,8 @@ DEST=/volumes/CIRCUITPY
 
 # take the param, strip the filename.
 source="$1"
-support_files="${@:2}"
-sourcebase="$(basename $source)"
+support_files=( "${@:2}" )
+sourcebase="$(basename "$source")"
 # get the filename without the extension.
 module="${sourcebase%.py}"
 
@@ -14,13 +14,13 @@ module="${sourcebase%.py}"
 echo "" >${DEST}/code.py
 
 # send the file
-cp ${source} ${DEST}/${sourcebase}
+cp "${source}" "${DEST}/${sourcebase}"
 
 # make a code.py
-echo "import ${module}" >${DEST}/code.py
+echo "import ${module}" >"${DEST}/code.py"
 
-if [ -n "${support_files}" ]; then
-  for file in ${support_files}; do
+if [ -n "${support_files[*]}" ]; then
+  for file in "${support_files[@]}"; do
     cp "$file" "${DEST}/$(basename "${file}")"
   done
-fi
+fi