#!/bin/bash

# Copyright 2008  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=2.5.2
ARCH=${ARCH:-x86_64}
BUILD=${BUILD:-4}

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

# Normally I don't trust -O3, but it is the Python default so
# I'll assume that in this case it has been well tested.
if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O3 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O3"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O3 -fPIC"
  LIBDIRSUFFIX="64"
fi

# Location for Python site-packages:
SITEPK=$PKG/usr/lib${LIBDIRSUFFIX}/python2.5/site-packages
# same as above without $PKG
TOOLSDIR=/usr/lib${LIBDIRSUFFIX}/python2.5/site-packages

cd $TMP
rm -rf Python-$VERSION
tar xjvf $CWD/Python-$VERSION.tar.bz2 || exit 1

cd Python-$VERSION

# Security patches:
zcat $CWD/patches/CVE-2008-1679-1721.diff.gz | patch -p1 --verbose --backup --suffix=.orig || exit 1
zcat $CWD/patches/CVE-2008-3144.diff.gz | patch -p1 --verbose --backup --suffix=.orig || exit 1
zcat $CWD/patches/CVE-2008-3142.diff.gz | patch -p1 --verbose --backup --suffix=.orig || exit 1
zcat $CWD/patches/CVE-2008-2316.diff.gz | patch -p1 --verbose --backup --suffix=.orig || exit 1
zcat $CWD/patches/CVE-2008-2315.diff.gz | patch -p1 --verbose --backup --suffix=.orig || exit 1
if [ "$ARCH" = "x86_64" ]; then
  # Install to lib64 instead of lib:
  zcat $CWD/Python-2.5.2_x86_64.diff.gz |  patch -p1 --verbose --backup --suffix=.orig || exit 1
  # Python must report /usr/lib64/python2.5/site-packages as python_lib_dir:
  zcat $CWD/python_pure64.diff.gz |  patch -p1 --verbose --backup --suffix=.orig || exit 1
fi

# Clean up after the patches:
find . -name "*.orig" -exec rm "{}" \;

chown -R root:root .
find . -type d -exec chmod 755 {} \;
find . -type f -perm 775 -exec chmod 755 {} \;
find . -type f -perm 664 -exec chmod 644 {} \;
find . -type d -name CVS -exec rm -r {} \;

OPT="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --with-ncurses \
  --with-threads \
  --enable-ipv6 \
  --enable-shared \
  --build=$ARCH-slackware-linux

make -j4 || 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
( cd Tools ; cp -a * $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
cp -a README $PKG/usr/doc/python-$VERSION
cp -a Misc $PKG/usr/doc/python-$VERSION
( cd $PKG/usr/doc/python-$VERSION ; mkdir html )
( cd $PKG/usr/doc/python-$VERSION/html
  tar xjvf $CWD/html-$VERSION.tar.bz2
  chown -R root:root .
)
( cd $PKG/usr/bin
  rm -f python
  ln -sf python2.5 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
)
gzip -9 $PKG/usr/man/man1/*.?
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

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