#!/bin/bash
shopt -s extglob
ulimit -s unlimited

# id3lib.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter for Slackware ARM.
#
# Copyright 2018  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.

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
slackset_var_cwds

# Temporary build locations:
export TMPBUILD=$TMP/build-$PKGNAM
export PKG=$TMP/package-$PKGNAM
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Extract source:
tar xvvf $CWD/$PKGNAM-$VERSION.tar.!(*sign|*asc|*sig)
cd $PKGNAM-$VERSION || exit 1
slackhousekeeping

# Patches obtained from Arch who obtained them from Debian and elsewhere -
# Use proper C++ headers:
zcat $CWD/patches/id3lib.cppheaders.patch.gz | patch -p1 --verbose || exit 1
# Add man pages:
zcat $CWD/patches/id3lib.manpages.patch.gz | patch -p1 --verbose || exit 1
# Write UTF8/UTF16 characters correctly:
zcat $CWD/patches/id3lib.utf8_writing.patch.gz | patch -p1 --verbose || exit 1
# Securely use mkstemp:
zcat $CWD/patches/id3lib.mkstemp.patch.gz | patch -p1 --verbose || exit 1
# Add C wrapper functions for field encoding:
zcat $CWD/patches/id3lib.c_wrapper.patch.gz | patch -p1 --verbose || exit 1
# Add a null pointer check:
zcat $CWD/patches/id3lib.nullpointer_check.patch.gz | patch -p1 --verbose || exit 1
# Fix stack smash crashes when reading VBR MP3:
zcat $CWD/patches/id3lib.vbr_stack_smash.patch.gz | patch -p1 --verbose || exit 1

# iomanip.h is obsolete; use the standard C++ header:
sed -e "s%iomanip.h%iomanip%g" -i configure

# Refresh to support latest architectures:
slackupdatelibtool

# Configure:
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
   --prefix=/usr \
   --sysconfdir=/etc \
   --libdir=/usr/lib${LIBDIRSUFFIX} \
   --localstatedir=/var \
   --mandir=/usr/man \
   --enable-static=no \
   --enable-debug=no \
   --host=${SLK_ARCH_HOST} \
   --build=${SLK_ARCH_BUILD} || failconfig

# Build:
make $NUMJOBS || make || failmake

# Install into package framework:
make install DESTDIR=$PKG || failinstall

# Install man pages:
mkdir -p $PKG/usr/man/man1
cp -a doc/man/* $PKG/usr/man/man1

# Add a documentation directory:
mkdir -p $PKG/usr/doc/${PKGNAM}-$VERSION
cp -fav \
  AUTHORS COPYING* HISTORY NEWS README* THANKS TODO \
  doc/id3v2.3.0.txt doc/musicmatch.txt \
  $PKG/usr/doc/${PKGNAM}-$VERSION
changelogliposuction ChangeLog $PKGNAM $VERSION # Trim down a "ChangeLog" file

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
slack_delete_lafiles # delete usr/lib{,64}/*.la
slackgzpages -i # compress man & info pages and delete usr/info/dir
slackslack      # set standard Slackware file/dir permissions and ownerships
slackdesc       # install slack-desc and doinst.sh
slackmp         # run makepkg -l y -c n

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links