#!/bin/sh
set -eu
export LC_ALL=C.UTF-8

[ {{ VARIANT }} = "custom" ]
[ {{ MODE }} = "chrootless" ]

prefix=
if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
    if [ ! -e /mmdebstrap-testenv ]; then
      echo "this test modifies the system and should only be run inside a container" >&2
      exit 1
    fi
    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
  fi
  prefix="runuser -u ${SUDO_USER:-user} --"
fi

case "$(dpkg --print-architecture)" in
  arm64)
    foreign_arch=amd64
    ;;
  amd64)
    foreign_arch=arm64
    ;;
  *)
    echo "unsupported native architecture" >&2
    exit 1
    ;;
esac

$prefix {{ CMD }} --mode={{ MODE }} --variant={{ VARIANT }} --architectures="$foreign_arch" --include=libmagic-mgc {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
# delete contents of libmagic-mgc
rm /tmp/debian-chroot/usr/lib/file/magic.mgc
rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/README.Debian
rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/changelog.Debian.gz
rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/changelog.gz
rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/copyright
rm -f /tmp/debian-chroot/usr/share/doc/libmagic-mgc/"changelog.Debian.$foreign_arch.gz"
rm /tmp/debian-chroot/usr/share/file/magic.mgc
rm /tmp/debian-chroot/usr/share/misc/magic.mgc
# delete real files
rm /tmp/debian-chroot/etc/apt/sources.list
rm /tmp/debian-chroot/etc/fstab
rm /tmp/debian-chroot/etc/hostname
rm /tmp/debian-chroot/etc/resolv.conf
rm /tmp/debian-chroot/var/lib/dpkg/status
rm /tmp/debian-chroot/var/cache/apt/archives/lock
rm /tmp/debian-chroot/var/lib/dpkg/lock
rm /tmp/debian-chroot/var/lib/dpkg/lock-frontend
rm /tmp/debian-chroot/var/lib/apt/lists/lock
## delete merged usr symlinks
#rm /tmp/debian-chroot/libx32
#rm /tmp/debian-chroot/lib64
#rm /tmp/debian-chroot/lib32
#rm /tmp/debian-chroot/sbin
#rm /tmp/debian-chroot/bin
#rm /tmp/debian-chroot/lib
# in chrootless mode, there is more to remove
rm /tmp/debian-chroot/var/lib/dpkg/arch
rm /tmp/debian-chroot/var/lib/dpkg/triggers/Lock
rm /tmp/debian-chroot/var/lib/dpkg/triggers/Unincorp
rm /tmp/debian-chroot/var/lib/dpkg/status-old
rm /tmp/debian-chroot/var/lib/dpkg/info/format
rm /tmp/debian-chroot/var/lib/dpkg/info/libmagic-mgc.md5sums
rm /tmp/debian-chroot/var/lib/dpkg/info/libmagic-mgc.list
# the rest should be empty directories that we can rmdir recursively
find /tmp/debian-chroot -depth -print0 | xargs -0 rmdir
