#!/bin/sh
# Backup root filesystem with borg
while test $# -gt 0; do
  case "$1" in
    (-n) run="arg-test"; shift;;
    (--root) shift; root="$1"; name="$(basename "$(realpath "$root")")"; echo $root $name; shift;;
    (-*) name="${1#-}"; shift;;
    (*) test $# -gt 0 || cd "$root"; break;;
  esac
done
name="::$(test -n "$name" && echo "$name" || cat /etc/hostname)_${1:-system}_$(date -u +"%y%m%d")"
echo "Backing up as $name"
${run:-sudo --preserve-env=BORG_REPO borg} create --exclude-caches --progress --stats \
  $(echo $DIRS_IGNORE_SAFE -x 'software-challenge/**/build' -x state/emacs -x state/go -x .local/lib | sed 's|-x \([^ ]\+\)|-e "sh:**/\1"|g') \
  "$name" $(test $# -eq 0 && echo etc home root || test $# -eq 1 && echo $1) "${@:2}"
sudo chown -R $USER:$USER "$BORG_REPO"