#!/bin/bash

# Slackware build script for ecasound

# Written by B. Watson (yalhcru@gmail.com)

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# 20211128 bkw: BUILD=2, add python3 support.
# 20200117 bkw: Updated for v2.9.3.
# 20191202 bkw:
# - Updated for v2.9.2.
# - removed python_module_dir.diff and ruby2.patch from 2.9.1,
#   they're no longer needed. This means you can no longer build
#   2.9.1 with this script.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=ecasound
VERSION=${VERSION:-2.9.3}
BUILD=${BUILD:-2}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

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

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+

# --disable-static and --enable-shared are accepted, but ignored.
# This is deliberate: upstream doesn't want shared libs. See:
# http://www.eca.cx/ecasound-list/2002/10/0031.html

setpyver() {
  PYVER=$( python -c 'import sys; print("%d.%d" % sys.version_info[0:2])' )
  echo "=== PYVER='$PYVER'"
}

conf() {
  CFLAGS="$SLKCFLAGS" \
  CXXFLAGS="$SLKCFLAGS" \
  ./configure \
    --disable-arts \
    --prefix=/usr \
    --libdir=/usr/lib${LIBDIRSUFFIX} \
    --sysconfdir=/etc \
    --localstatedir=/var \
    --mandir=/usr/man \
    --docdir=/usr/doc/$PRGNAM-$VERSION \
    --with-python-modules=/usr/lib$LIBDIRSUFFIX/python$PYVER \
    --enable-python-force-site-packages \
    --disable-all-static \
    --build=$ARCH-slackware-linux
}

# first time around, build everything, with python2 support.
setpyver
conf
make
make install-strip DESTDIR=$PKG

# 2nd build, python3 support only. configure has "python" hardcoded as
# the executable (can't pass python3), so fake it out with $PATH.
mkdir pytmp
ln -s /usr/bin/python3 pytmp/python
export PATH=$(pwd)/pytmp:$PATH

setpyver
make clean
conf
make -C pyecasound install DESTDIR=$PKG

# Per -current guidelines (and does no harm on 14.2):
rm -f $PKG/usr/lib$LIBDIRSUFFIX/*.la

# Kind of a twist for a SlackBuild: bunch of identical man pages are getting
# installed, and we want them to be symlinks instead of copies.
cd $PKG/usr/man/man1
toolsum="$( cat ecatools.1 | md5sum )"
for manpage in $( /bin/ls * | grep -v ecatools ); do
  if [ "$toolsum" = "$( cat $manpage | md5sum )" ]; then
    rm -f $manpage
    ln -s ecatools.1 $manpage
  fi
done
cd -

find $PKG/usr/man -type f -exec gzip -9 {} \;
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a AUTHORS BUGS COPYING* INSTALL README RELNOTES TODO \
      $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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

# Only add capability stuff if not disabled:
if [ "${SETCAP:-yes}" = "yes" ]; then
  cat $CWD/setcap.sh >> $PKG/install/doinst.sh
  # Only allow execution by audio group
  chown root:audio $PKG/usr/bin/$PRGNAM
  chmod 0750 $PKG/usr/bin/$PRGNAM
fi

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE