#!/bin/sh
[ -z "$1" ] && {
	printf "Provide number of snapshots to keep\n"
	exit 1
}
[ $1 -gt 0 ] || {
	printf "%s doesn't look like a positive number\n" "$1"
	exit 1
}
restic snapshots -c
printf "Will delete these snapshots:\n" "$1"
restic snapshots -c | awk 'NR>2 && !/^-+$/ && !/^[0-9]* snapshots$/ {print $1}'|head -n -"$1"
printf "Proceed? [y/N]\n" "$1"
read answer
[ "$answer" = "y" ] && {
	restic snapshots -c | awk 'NR>2 && !/^-+$/ && !/^[0-9]* snapshots$/ {print $1}'|head -n -"$1"|xargs -n 1 restic forget
	restic prune
}