#!/bin/bash

# Copyright 2008, 2009  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.


VERSION=${VERSION:-2.6.2}
ARCH=${ARCH:-i486}
BUILD=${BUILD:-3}

NUMJOBS=${NUMJOBS:-" -j7 "}

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-python
rm -rf $PKG
mkdir -p $TMP $PKG

# Don't set any SLKCFLAGS here, or OPT="$SLKCFLAGS" before the ./configure.
# Python gets the compile options right without any help.
if [ "$ARCH" = "i486" ]; then
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "arm" ]; then
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "armel" ]; then
  LIBDIRSUFFIX=""
fi

# Location for Python site-packages:
SITEPK=$PKG/usr/lib${LIBDIRSUFFIX}/python2.6/site-packages
# same as above without $PKG
TOOLSDIR=/usr/lib${LIBDIRSUFFIX}/python2.6/site-packages

cd $TMP
rm -rf Python-$VERSION
tar xf $CWD/Python-$VERSION.tar.?z* || exit 1
cd Python-$VERSION

zcat $CWD/python.readline.set_pre_input_hook.diff.gz | patch -p1 --verbose || exit 1

if [ "$ARCH" = "x86_64" ]; then
  # Install to lib64 instead of lib:
  zcat $CWD/python.x86_64.diff.gz |  patch -p1 --verbose || exit 1
  # Python must report /usr/lib64/python2.6/site-packages as python_lib_dir:
  zcat $CWD/python.pure64.diff.gz |  patch -p1 --verbose || exit 1
fi

chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --docdir=/usr/doc/python-$VERSION \
  --with-ncurses \
  --with-threads \
  --enable-ipv6 \
  --enable-shared \
  --build=$ARCH-slackware-linux

make $NUMJOBS || make || exit 1
make install DESTDIR=$PKG

# Install some python-demo files:
mkdir -p $PKG/usr/doc/python-$VERSION
cp -a Demo $PKG/usr/doc/python-$VERSION

# We'll install the python-tools under site-packages:
mkdir -p $SITEPK
cp -a Tools/* $SITEPK

mkdir -p $PKG/usr/doc/python-$VERSION
mv $SITEPK/README $PKG/usr/doc/python-$VERSION/README.python-tools
( cd $PKG/usr/doc/python-$VERSION
  ln -sf $TOOLSDIR Tools
)
# Make a few useful symlinks:
mkdir -p $PKG/usr/bin
( cd $PKG/usr/bin
  ln -sf $TOOLSDIR/modulator/modulator.py modulator
  ln -sf $TOOLSDIR/pynche/pynche pynche
  ln -sf $TOOLSDIR/i18n/msgfmt.py .
  ln -sf $TOOLSDIR/i18n/pygettext.py .
)

# Install docs:
mkdir -p $PKG/usr/doc/python-$VERSION/Documentation
cp -a README LICENSE $PKG/usr/doc/python-$VERSION
cp -a Misc $PKG/usr/doc/python-$VERSION
tar xf $CWD/python-$VERSION-docs-text.tar.?z*
mv python-${VERSION}-docs-text/* $PKG/usr/doc/python-$VERSION/Documentation
chown -R root:root $PKG/usr/doc/python-$VERSION

( cd $PKG/usr/bin
  rm -f python
  ln -sf python2.6 python
)

( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | \
    xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | \
    xargs strip --strip-unneeded 2> /dev/null
)

( cd $PKG/usr/man
  find . -type f -exec gzip -9 {} \;
  for i in $(find . -type l) ; do ln -s $(readlink $i).gz $i.gz ; rm $i ; done
)

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $TMP/python-$VERSION-$ARCH-$BUILD.txz