generate /etc/fstab nomount entries from APFS container volumes

gen-fstab-nomount-entries.sh

#!/usr/bin/env bash

set -e
set -o pipefail

disk=$(echo "$1" | sed -E 's/^\/dev\///g')
if [[ $# != 1 || ! "$disk" =~ disk[0-9]$ ]]; then
	cat <<EOF
usage: $0 <APFS container node>
EOF
	exit 1
fi

cnt=$(/usr/sbin/diskutil apfs list $disk | grep -ic \>\ Volume)

echo -- APFS container node: $disk
echo -- '#' volumes: $cnt

for ((i = 1; i <= cnt; i++)); do
	/usr/sbin/diskutil info ${disk}s${i} | grep -E 'Volume (Name|UUID)' | sed -E 's/^.{30}//' | tail -r | tr '\n' '\0' | xargs -n2 -0 | sed -E 's/([0-9A-F-]{36} )/\1none apfs rw,noauto # /g'
done