#!/bin/sh

# Copyright 2008, 2009, 2010  Patrick J. Volkerding, Sebeka, Minnesota, 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.

VERSION=0.4.0
BUILD=${BUILD:-2}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i486 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-ash

rm -rf $PKG
mkdir -p $TMP $PKG

cd $TMP
rm -rf ash-$VERSION
tar xzvf $CWD/ash-$VERSION.tar.gz || exit 1
cd ash-$VERSION
chown -R root:root .
( cd $CWD/patches
  for file in ash-builtin.patch.gz ash-echo.patch.gz ash-getcwd.patch.gz ash-getopt.patch.gz ash-glob.patch.gz ash-jobs.patch.gz ash-kill.patch.gz ash-makefile.patch.gz ash-manpage.patch.gz ash-hetio.patch.gz ash-memout.patch.gz ash-misc.patch.gz ash-redir.patch.gz ash-setmode.patch.gz ash-syntax.patch.gz ash-test.patch.gz ash-times.patch.gz ash-debian.patch.gz ash-ppid.patch.gz ash-freebsd.patch.gz ash-sighup.patch.gz ; do
    zcat $file
  done ) | patch -p1 --verbose
sed -i -e 's#= {#{#' arith.y || exit 1 # prevent "syntax error, unexpected ="
sed -i -e '/yyerrok;/d' arith.y || exit 1 # "error: 'yyerrstatus' undeclared"
# Fred Emmott found this on the LFS mailing list:
sed -i -e 's#extern int hetio_inter#static int hetio_inter#' hetio.h || exit 1
make || exit 1
strip sh
mkdir -p $PKG/bin
cat sh > $PKG/bin/ash
chmod 755 $PKG/bin/ash
mkdir -p $PKG/usr/man/man1
cat sh.1 | gzip -9c > $PKG/usr/man/man1/ash.1.gz
mkdir -p $PKG/usr/doc/ash-$VERSION
chmod 644 TOUR
cp -a TOUR $PKG/usr/doc/ash-$VERSION
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat << EOF > $PKG/install/doinst.sh
if grep "bin/ash" etc/shells 1> /dev/null 2> /dev/null; then
  true
else
  echo "/bin/ash" >> etc/shells
fi
EOF

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

# Clean up the extra stuff:
if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP/ash-$VERSION
  rm -rf $PKG
fi