#!/bin/sh

# Copyright 2008, 2009  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.

CWD=`pwd`
TMP=${TMP:-/tmp}
PKG=$TMP/package-git

VERSION=1.6.1.3
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1_slack12.1}
eval `perl '-V:installsitelib'`
PERLDIR=$installsitelib/$ARCH-linux-thread-multi/auto

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

if [ ! -d $TMP ]; then
  mkdir -p $TMP
fi
rm -rf $PKG
mkdir -p $PKG

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

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

mkdir -p $PKG/usr/doc/git-$VERSION
cp -a \
  COPYING* INSTALL README \
  Documentation \
  contrib \
  $PKG/usr/doc/git-$VERSION
( cd $PKG/usr/doc/git-$VERSION/Documentation ; rm *.1 *.3 *.7 )

make -j4 prefix=/usr mandir=/usr/man CFLAGS="$SLKCFLAGS" INSTALLDIRS=vendor all doc || exit 1

make prefix=/usr mandir=/usr/man "CFLAGS=$SLKCFLAGS" INSTALLDIRS=vendor install install-doc DESTDIR=$PKG || exit 1

mv $PKG/usr/share/man/man3 $PKG/usr/man
rmdir $PKG/usr/share/man

# Compress and if needed symlink the man pages:
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1) ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi

( 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
)

# Since Stuart Winter hates hard links.  ;-)
#
# Switch a hard link with a soft link:
( cd $PKG/usr/bin
  find . -links +1 -not -name git | while read gitfile ; do
    if [ git -ef $gitfile ]; then
      rm -vf $gitfile
      ln -vfs git $gitfile
    fi
  done
)

# This removes our DESTDIR from the packlist filenames, to keep perl's 
# internal inventories consistent and correct.
sed -e "s#$PKG##" $PKG/$PERLDIR/Git/.packlist > $PKG/$PERLDIR/Git/.packlist.new
mv -f $PKG/$PERLDIR/Git/.packlist.new $PKG/$PERLDIR/Git/.packlist
# This is junk:
( cd $PKG/usr/lib/perl5 && rm -rf 5.* )

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

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