#!/bin/sh

# Heavily based on the Slackware 13.1 SlackBuild
# Written by jimmy_page_89 ( jimmy_page_89@hotmail.it ) 
# Last build from jimmy_page_89 ( jimmy_page_89@hotmail.it )

# Slackware build script for p7zip
# Official Site: http://p7zip.sourceforge.net/

# 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.

set -e

PKGNAME=p7zip
VERSION=${VERSION:-9.04}
BUILD=${BUILD:-1sl}
ARCH=${ARCH:-x86_64}
SOURCE="http://downloads.sourceforge.net/$PKGNAME/${PKGNAME}_${VERSION}_src_all.tar.bz2"

if [ ! -e ${PKGNAME}_${VERSION}_src_all.tar.bz2 ];then
  wget $SOURCE
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/buildpkgs/$PKGNAME}
PKG=$TMP/package-$PKGNAME
OUTPUT=${OUTPUT:-$CWD}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
fi

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

cd $TMP
tar xvf $CWD/${PKGNAME}_${VERSION}_src_all.tar.bz2
cd ${PKGNAME}_${VERSION}
### installazione patch (se presenti)
zcat $CWD/${PKGNAME}_4.58-install.patch.gz | patch -p1 -E --backup --verbose
zcat $CWD/${PKGNAME}_4.51-nostrip.patch.gz | patch -p1 -E --backup --verbose

if [ "${ARCH}" = "x86_64" ] ;then
  cp -f makefile.linux_amd64_asm makefile.machine || exit 1
else
  cp -f makefile.linux_x86_asm_gcc_4.X makefile.machine || exit 1
fi

make all3 \
  OPTFLAGS="-Wall ${SLKCFLAGS} -fPIC" \
  DEST_HOME=/usr \
  DEST_BIN=/usr/bin \
  DEST_SHARE=/usr/libexec/$PKGNAME \
  DEST_MAN=/usr/man || exit 1

make install \
  DEST_DIR=${PKG} \
  DEST_HOME=/usr \
  DEST_BIN=/usr/bin \
  DEST_SHARE=/usr/libexec/$PKGNAME \
  DEST_MAN=/usr/man || exit 1

### In this section you may remove some not needed files or move that file in other path

install -pm0755 contrib/gzip-like_CLI_wrapper_for_7z/p7zip \
  $PKG/usr/bin/7zg
install -m 0644 contrib/gzip-like_CLI_wrapper_for_7z/man1/p7zip.1 \
  $PKG/usr/man/man1/7zg.1
rm -rf contrib/gzip-like_CLI_wrapper_for_7z/{check,p7zip,man1}

### copy some documentation files
mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION
cp -a \
  ChangeLog README TODO DOCS/* contrib/ \
  $PKG/usr/doc/$PKGNAME-$VERSION

cat $CWD/$PKGNAME.SlackBuild > $PKG/usr/doc/$PKGNAME-$VERSION/$PKGNAME.SlackBuild
cat $CWD/slack-desc > $PKG/usr/doc/$PKGNAME-$VERSION/slack-desc

### compress man pages
if [ -d $PKG/usr/man ]; then
    ( 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
    )
fi

### now you must do 'strip' all binary files
( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
  find . | xargs file | grep "current ar archive" | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
)

### popolate the install/ directory
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

### reset owner and create slack-required file.
cd $PKG
chown -R root:root $PKG

if [ -x "$(which depfinder 2>/dev/null)" ];then
  depfinder -f -s -a -p $PKG
  mv slack-required $CWD/
elif [ -x "$(which requiredbuilder 2>/dev/null)" ];then
  requiredbuilder -y -v -s $CWD $PKG
else
  touch $CWD/slack-required
fi

### finally make the package. 
/sbin/makepkg -l y -c n $OUTPUT/$PKGNAME-$VERSION-$ARCH-$BUILD.${PKGTYPE:-txz}

if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP
fi