#!/bin/bash

# Copyright 2005-2018  Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PKGNAM=etc
VERSION=15.0
BUILD=${BUILD:-16}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i586 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

TMP=${TMP:-/tmp}
PKG=$TMP/package-etc
rm -rf $PKG
mkdir -p $TMP $PKG

# Explode the package framework:
cd $PKG
explodepkg $CWD/_etc.tar.gz
# Fix for ARCH:
sed -i -e "s#/i586-slackware-linux#/${ARCH}-slackware-linux#" etc/ld.so.conf.new
# Fix paths if lib64 is needed:
if [ "$ARCH" = "x86_64" ]; then
  sed -i -e "s#/lib#/lib64#" etc/ld.so.conf.new
fi
zcat $CWD/nsswitch.conf.gz > $PKG/etc/nsswitch.conf.new

# Check to make sure that shadow has the same number of entries
# as passwd:
if [ ! "$(cat $CWD/passwd.new | wc -l)" = "$(cat $CWD/shadow.new | wc -l)" ]; then
  echo "#######################################################################################"
  echo "# WARNING: /etc/passwd.new and /etc/shadow.new don't have the same number of entries. #"
  echo "#######################################################################################"
  sleep 60
fi
# Install default passwd/shadow/group (sorted):
sort -n -t ':' -k3 $CWD/passwd.new > $PKG/etc/passwd.new
awk -F':' 'NR==FNR{z[$1]=$0;next}{print z[$1]}' $CWD/shadow.new $PKG/etc/passwd.new > $PKG/etc/shadow.new
sort -n -t ':' -k3 $CWD/group.new > $PKG/etc/group.new

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh

# Build the package:
cd $PKG
/sbin/makepkg -l y -c n  $TMP/etc-$VERSION-$ARCH-$BUILD.txz