#!/bin/sh
set -e

install_local_dir() {
  if [ ! -d $1 ]; then
    mkdir -p $1
  fi
  chown root:staff $1 2> /dev/null || true
  chmod 2775 $1 2> /dev/null || true
}

install_from_default() {
  if [ ! -f $2 ]; then
    cp -p $1 $2
  fi
}

install_directory() {
  if [ ! -d /$1 ]; then
    mkdir /$1
    chown root:$3 /$1
    chmod $2 /$1
  fi
}

preserve_directory() {
  if [ -f /etc/base-files.create-$1 ]; then
    install_directory $1 755 root
    rm -f /etc/base-files.create-$1
  fi
}

if [ "$1" = "configure" ] && [ "$2" = "" ]; then
  install_from_default /usr/share/base-files/nsswitch.conf /etc/nsswitch.conf
  install_from_default /usr/share/base-files/dot.profile   /root/.profile
  install_from_default /usr/share/base-files/dot.bashrc    /root/.bashrc
  install_from_default /usr/share/base-files/profile       /etc/profile
  install_from_default /usr/share/base-files/motd          /etc/motd
  install_directory srv       755 root
  install_directory opt       755 root
  install_directory etc/opt   755 root
  install_directory var/opt   755 root
  install_directory media     755 root
  install_directory var/mail 2775 mail
  if [ ! -L /var/spool/mail ]; then
    ln -s ../mail /var/spool/mail
  fi

  install_local_dir /usr/local
  install_local_dir /usr/local/share
  install_local_dir /usr/local/share/man
  install_local_dir /usr/local/bin
  install_local_dir /usr/local/games
  install_local_dir /usr/local/lib
  install_local_dir /usr/local/include
  install_local_dir /usr/local/sbin
  install_local_dir /usr/local/src
  install_local_dir /usr/local/etc
  ln -sf share/man /usr/local/man

  if [ ! -f /var/log/wtmp ]; then
    echo -n>/var/log/wtmp
  fi
  if [ ! -f /var/log/btmp ]; then
    echo -n>/var/log/btmp
  fi
  if [ ! -f /var/log/lastlog ]; then
    echo -n>/var/log/lastlog
  fi
  chown root:utmp /var/log/wtmp /var/log/btmp /var/log/lastlog
  chmod 664 /var/log/wtmp /var/log/btmp /var/log/lastlog
fi

if [ "$1" = "configure" ] && [ "$2" != "" ]; then
  if [ ! -d /var/spool/mail ] && [ ! -L /var/spool/mail ]; then
    if [ -f /etc/base-files.mailsymlink ]; then
      ln -sf `cat /etc/base-files.mailsymlink` /var/spool/mail
    else
      install_directory var/spool/mail 2775 mail
    fi
  fi
  if [ ! -L /var/mail ] && [ ! -d /var/mail ]; then
    ln -sf spool/mail /var/mail
  fi
fi

preserve_directory floppy
preserve_directory cdrom
preserve_directory initrd

if [ ! -f /etc/adjtime ]; then
  echo "0.000000 1228000000 0.000000" > /etc/adjtime
  echo "1228000000" >> /etc/adjtime
  echo "UTC" >> /etc/adjtime
  chmod 644 /etc/adjtime
fi

if [ ! -f /var/run/utmp ]; then
  echo -n>/var/run/utmp
fi
chown root:utmp /var/run/utmp
chmod 664 /var/run/utmp

if [ ! -d /var/lib/dpkg ]; then
  mkdir -m 755 -p /var/lib/dpkg
  chown root:root /var/lib/dpkg
fi
if [ ! -f /var/lib/dpkg/status ]; then
  echo > /var/lib/dpkg/status
  chmod 644 /var/lib/dpkg/status
  chown root:root /var/lib/dpkg/status
fi

if [ ! -f /usr/info/dir ] && [ ! -f /usr/share/info/dir ]; then
  install_from_default /usr/share/base-files/info.dir /usr/share/info/dir
  chmod 644 /usr/share/info/dir
  chown root:root /usr/share/info/dir
fi
rm -f /etc/base-files.mailsymlink

if [ "$1" = "configure" ] && [ "$2" != "" ]; then
  if [ -f /etc/motd ]; then
    oldmd=`awk 'NR > 2' /etc/motd | md5sum | awk '{print $1}'`
    newmd=`awk 'NR > 2' /usr/share/base-files/motd | md5sum | awk '{print $1}'`
    if [ "$oldmd" != "$newmd" ]; then
      if grep -q "$oldmd" /usr/share/base-files/motd.md5sums; then
        awk 'NR <= 2' /etc/motd > /etc/motd.new
        awk 'NR > 2' /usr/share/base-files/motd >> /etc/motd.new
        mv /etc/motd /etc/motd.old
        mv /etc/motd.new /etc/motd
      fi
    fi
  fi
fi

if [ -f /var/lib/dpkg/info/base.list ]; then
  :> /var/lib/dpkg/info/base.list
  rm -f /var/lib/dpkg/info/base.conffiles
  echo
  echo "Note: You have the old \`base' package installed"
  echo "It is very important that you do not try to remove this package"
  echo "using dpkg. Please read /usr/share/doc/base-files/README.base to"
  echo "get rid of the \`base' package completely in a safe way."
  echo
  echo -n "Press <Return> to continue "
  read dummy
fi