#!/bin/sh
set -e

# Set initial variables:
CWD=`pwd`
if [ "$TMP" = "" ]; then
  TMP=/tmp
fi
PKG=$TMP/package-bash

VERSION=3.1
ARCH=${ARCH:-x86_64}
BUILD=${BUILD:-1}

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mcpu=i686"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
fi

if [ ! -d $TMP ]; then
  mkdir -p $TMP # location to build the source
fi
rm -rf $PKG
mkdir -p $PKG

# Determine bash patchlevel:
PATCHLEVEL=`( cd $CWD/patches ; /bin/ls *gz | tail -1 | cut -f 2 -d - | cut -f 1 -d . 2> /dev/null )`
if [ "$PATCHLEVEL" = "" ]; then
  PATCHLEVEL=0
fi

cd $TMP
rm -rf bash-$VERSION
tar xzvf $CWD/bash-$VERSION.tar.gz
cd bash-$VERSION
chown -R root:root .
find . -perm 664 | xargs chmod 644
find . -perm 775 | xargs chmod 755
for patch in $CWD/patches/bash* ; do
  zcat $patch | patch -p0 --verbose || exit 1
done
CFLAGS="$SLKCFLAGS" \
./configure --prefix=/usr $ARCH-slackware-linux
make -j3
make install DESTDIR=$PKG
mkdir -p $PKG/bin
mv $PKG/usr/bin/bash $PKG/bin/bash2.new
strip --strip-unneeded $PKG/bin/bash2.new

# We don't include the "bashbug" script.
rm -rf $PKG/usr/bin $PKG/usr/man/man1/bashbug.1
gzip -9 $PKG/usr/man/man1/*
mkdir -p $PKG/usr/doc/bash-$VERSION
cp -a AUTHORS CHANGES COMPAT COPYING INSTALL MANIFEST NEWS NOTES \
  README Y2K doc/FAQ doc/INTRO $PKG/usr/doc/bash-$VERSION
cd doc
groff -ms -Tascii article.ms > $PKG/usr/doc/bash-$VERSION/article.txt
# bash.1 is already installed by "make install"
for page in builtins.1 rbash.1 ; do
  cat $page | gzip -9c > $PKG/usr/man/man1/$page.gz
done
rm -f $PKG/usr/info/dir
gzip -9 $PKG/usr/info/*
mkdir -p $PKG/install
zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh
cat $CWD/slack-desc > $PKG/install/slack-desc

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

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