A wrapper over rm to protect critical paths from accidental deletion

rm_safe.sh

# Override RM to protect critical folders. Regex
typeset -gxa MYS_RM_PROTECT=(
	"$HOME/[^/]+"
	"/root/.+"
)
# TODO: 2 unhandled cases:
# - protected path contains a symlink
# - recursive parent deletion
function rm {
	typeset todel= safedir= confirmdir=""
	# Scan for protected paths
	for todel in "$@"; do
		typeset todelabs="$(readlink -f "$todel" 2>/dev/null || realpath "$todel")"
		for safedir in "${MYS_RM_PROTECT[@]}"; do
			# Check with relative or  absolute path
			if [[ "$todel" =~ ^$safedir ]] || [[ "$todelabs" =~ ^$safedir$ ]]; then
				confirmdir+="  - '$todel'   folder '$todelabs'   safedir '$safedir'\n"
			fi
		done
	done

	# Check if we have protected paths
	if [[ -n "$confirmdir" ]]; then
		echo >&2 "!!!!!!!!!!!!!!!!!!!!!!!!!!!     WARNING     !!!!!!!!!!!!!!!!!!!!!!!!!!!"
		echo >&2 "You are about to remove content in a protected dir. Matched entries:"
		echo >&2 -e "$confirmdir"
		typeset answer=""
		while [[ "$answer" != "YES" ]]; do
			echo >&2 "!! Are you sure ? Enter 'yes' in UPPERCASE to confinue, Ctrl+C to cancel !!"
			read answer
		done
	fi

	# Call real rm binary
	$(type -P rm) "$@"
}