#!/bin/sh
#-- libreplaygain-compat32 for Slackware --
# Build script by Phantom X <megaphantomx at bol.com.br>
# Suggested usage: $ libreplaygain.SlackBuild 2>&1 | tee build.log
#--
# Copyright 2008, 2009, 2010, 2011 Phantom X, Goiania, Brazil.
# Copyright 2006 Martijn Dekker, Groningen, Netherlands.
#
# 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.

# http://www.musepack.net

PACKAGER_ID=${PACKAGER_ID:-$USER}
PACKAGER=${PACKAGER:-$USER@$HOSTNAME}

# Set YES for native build with gcc >= 4.2
SB_NATIVE=${SB_NATIVE:-NO}

# Set to YES to replicate slackbuild and patches
SB_REP=${SB_REP:-YES}

CWD=$(pwd)
TMP=${TMP:-/tmp}
if [ ! -d ${TMP} ]; then
  mkdir -p ${TMP}
fi

PNAME=libreplaygain
NAME=libreplaygain-compat32
PKG=${PKG:-${TMP}/package-${NAME}}

VERSION=${VERSION:-r453}
if [ "${SB_NATIVE}" = "YES" ] ;then
  ARCH32=${ARCH32:-$(linux32 uname -m)}
else
  ARCH32=${ARCH32:-i686}
fi
SLKTARGET32=${SLKTARGET32:-i486}
SLKDTARGET=${SLKDTARGET:-slackware}
BUILD=${BUILD:-1}
NJOBS=${NJOBS:-$(( $(getconf _NPROCESSORS_ONLN) + 1 ))}
DOCDIR=${PKG}/usr/doc/${NAME}-${VERSION}
SBDIR=${PKG}/usr/src/slackbuilds/${PNAME}
PKGDEST=${PKGDEST:-${CWD}}
PKGFORMAT=${PKGFORMAT:-txz}
PKGNAME=${NAME}-$(echo ${VERSION} | tr - . )-${ARCH32}-${BUILD}${PACKAGER_ID}

DATE=$(LC_ALL=C date +%d-%b-%Y)

SRCDIR=${PNAME}_${VERSION}
SRCARCHIVE=${SRCDIR}.tar.gz

DL_PROG=${DL_PROG:-wget}
DL_TO=${DL_TO:-5}
DL_OPTS=${DL_OPTS:-"--timeout=${DL_TO}"}
DL_URL="http://files.musepack.net/source/${SRCARCHIVE}"

# if source is not present, download in source rootdir if possible
test -r ${CWD}/${SRCARCHIVE} || ${DL_PROG} ${DL_OPTS} ${DL_URL} || exit 1

if [ "${SB_NATIVE}" = "YES" ] ;then
  SLKCFLAGS="-O2 -march=native -mtune=native ${SB_ECFLAGS} -pipe"
else
  case "${ARCH32}" in
    i[3-6]86)    SLKCFLAGS="-O2 -march=${ARCH32} -mtune=i686"
                 ;;
  esac
fi
LIBDIRSUFFIX=""
export CC="gcc -m32"
export CXX="g++ -m32"
export PKG_CONFIG_PATH="/usr/local/lib/pkgconfig:/usr/lib/pkgconfig:${PKG_CONFIG_PATH}"

if [ -d ${PKG} ]; then
  # Clean up a previous build
  rm -rf ${PKG}
fi
mkdir -p ${PKG}

cd ${TMP}
rm -rf ${SRCDIR}
tar -xvf ${CWD}/${SRCARCHIVE} || exit 1
cd ${SRCDIR} || exit 1

chmod -R u+w,go+r-w,a-s .

if [ -r ${CWD}/apply-patches.sh ]; then
  . ${CWD}/apply-patches.sh || exit 1
fi

export CFLAGS="${SLKCFLAGS}"
export CXXFLAGS="${SLKCFLAGS}"
export FFLAGS="${SLKCFLAGS}"

mkdir -p build
( cd build || exit $?

  cmake .. \
    -DCMAKE_INSTALL_PREFIX:PATH=/usr \
    -DSYSCONF_INSTALL_DIR:PATH=/etc \
    -DINCLUDE_INSTALL_DIR:PATH=/usr/include \
    -DCMAKE_INSTALL_LIBDIR:PATH=/usr/lib${LIBDIRSUFFIX} \
    -DLIB_INSTALL_DIR:PATH=/usr/lib${LIBDIRSUFFIX} \
    -DLIB_SUFFIX=${LIBDIRSUFFIX} \
    -DSHARE_INSTALL_PREFIX:PATH=/usr/share \
    -DMAN_INSTALL_DIR:PATH=/usr/man \
    -DCMAKE_BUILD_TYPE=Release \
    -DBUILD_SHARED_LIBS:BOOL=ON \
    -DCMAKE_SKIP_RPATH:BOOL=ON \
    -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON \
    || exit $?

  make -j${NJOBS} || make || exit $?
  make install/fast DESTDIR=${PKG} || exit $?

) || exit $?

rm -f ${PKG}/usr/lib*/*.a

rm -rf ${PKG}/usr/{bin,sbin,doc,include,libexec,man,info,share} ${PKG}/{etc,var}

find ${PKG} | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

mkdir -p ${PKG}/install
cat ${CWD}/slack-desc-compat32 > ${PKG}/install/slack-desc
cat ${CWD}/slack-required > ${PKG}/install/slack-required

sed -i "s|_PACKAGER|${PACKAGER}|g; s|_BUILD_DATE|${DATE}|g" \
       ${PKG}/install/slack-desc

if [ "${SB_REP}" = "YES" ] ;then
  # Replicate slackbuild and patches
  mkdir -p ${SBDIR}
  install -m0644 ${CWD}/slack-desc-compat32 ${SBDIR}/
  install -m0755 ${CWD}/${NAME}.SlackBuild \
                 ${SBDIR}/${NAME}.SlackBuild
fi

# Build package:
set +o xtrace        # no longer print commands upon execution

ROOTCOMMANDS="set -o errexit -o xtrace ; cd ${PKG} ;
  /bin/chown --recursive root:root .  ;"

ROOTCOMMANDS="${ROOTCOMMANDS}
  /sbin/makepkg --linkadd y --chown n ${PKGDEST}/${PKGNAME}.${PKGFORMAT} "

if test ${UID} = 0; then
  eval ${ROOTCOMMANDS}
  set +o xtrace
elif test "$(type -t fakeroot)" = 'file'; then
  echo -e "\e[1mEntering fakeroot environment.\e[0m"
  echo ${ROOTCOMMANDS} | fakeroot
else
  echo -e "\e[1mPlease enter your root password.\e[0m (Consider installing fakeroot.)"
  /bin/su -c "${ROOTCOMMANDS}"
fi

# Clean up the extra stuff:
if [ "$1" = "--cleanup" ]; then
  echo "Cleaning..."
  if [ -d ${TMP}/${SRCDIR} ]; then
    rm -rf ${TMP}/${SRCDIR} && echo "${TMP}/${SRCDIR} cleanup completed"
  fi
  if [ -d ${PKG} ]; then
    rm -rf ${PKG} && echo "${PKG} cleanup completed"
  fi
  rmdir ${TMP} && echo "${TMP} cleanup completed"
fi
exit 0