#! /bin/bash -e

shopt -s nullglob
case $# in 1) dir=$1 ;; *) echo >&2 "usage: $0 DIR"; exit 2 ;; esac
cd "$dir"

keep=("./files" "./files.*" "./.ssh/keys")

clear_dir () {
  local p q

  for p in "$1"/..?* "$1"/.[!.]* "$1"/*; do
    for q in "${keep[@]}"; do
      case $p in $q) continue 2 ;; esac
      case $q in "$p"/*) clear_dir "$p"; continue 2 ;; esac
    done
    rm -rf "$p"
  done
}
clear_dir .

mkdir -p .ssh/keys etc lib usr/bin
ln -s ../../ssh-common/Makefile ../../ssh-common/sshsvc.conf .ssh/
make -C.ssh/
cp /usr/bin/rsync usr/bin/
ldd /usr/bin/rsync | while read line; do
  set -- $line
  for i in "$@"; do case "$i" in /*) cp "$i" lib/ ;; esac; done
done

grep -E '^(root:|sysupl-)' /etc/passwd >etc/passwd
grep -E '^(root:|sysupl-)' /etc/group >etc/group