#!/bin/bash

# Slackware build script for jack-tools

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

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

# 20180617 bkw:
# - BUILD=2
# - Get rid of VST headers, since Steinberg doesn't want us to
#   distribute them. Thanks to idlemoor for cleaning up the mess
#   in the git history.
# - If the user really needs native VST support, he can get the
#   headers the legit way (from Steinberg) and the script will
#   pick them up. Otherwise, jack-lxvst is just not built. Add
#   README_VST.txt to hopefully clarify the situation.

# 20170127 bkw:
# - Updated for 20170117 (latest commit). Also updated c-common to
#   latest.
# - Added man pages for the new jack-data and jack-lxvst utils.
# - Added VST headers to get jack-lxvst to build. Not sure the
#   licensing status of these, but they were cloned from a public
#   github repo.

# 20151110 bkw:
# - Updated for 20141211. This is the date of the latest darcs
#   commit. Note that the c-common/ in the source tarball is the
#   old one (from my jack-tools-20130616.tar.gz), since jack-tools
#   won't compile against the latest c-common. Only jack-scope
#   and jack-play have changed.
# - Add capability stuff.

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

PRGNAM=jack-tools
VERSION=${VERSION:-20170117}
BUILD=${BUILD:-1}
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 the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
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.xz
cd $PRGNAM-$VERSION

# apply our flags. -Wl,-s strips the binaries.
sed -i "s/-O./$SLKCFLAGS -Wl,-s/" Makefile c-common/Makefile

# Slackware 14.2 doesn't have libtinfo (15.0 will, IIRC).
sed -i 's,-ltinfo,,' Makefile

# Author's library
make -C c-common

# If the Steinberg VST headers are found, put them where the build can find
# them. Neither SBo nor upstream can distribute the headers, you have to get
# them direct from Steinberg.
VST_HEADERS=${VST_HEADERS:-$CWD}
if [ -e $VST_HEADERS/aeffect.h -a -e $VST_HEADERS/aeffectx.h ]; then
  mkdir -p pluginterfaces/vst2.x
  cp $VST_HEADERS/aeffect.h $VST_HEADERS/aeffectx.h pluginterfaces/vst2.x
  STEINBERG_ME_HARDER="yes"
  WITH=WITH
else
  sed -i '/^bin=/s,jack-lxvst,,' Makefile
  WITH=WITHOUT
fi

make

mkdir -p $PKG/usr/bin $PKG/usr/include
make install prefix=$PKG/usr

# man pages generated from *.md markdown files, then manually edited
# to clean up the formatting.
mkdir -p $PKG/usr/man/man1
for page in $CWD/man/*.1; do
  gzip -9c < $page > $PKG/usr/man/man1/$( basename $page ).gz
done

# Only install the lxvst man page if the lxvst binary got built.
if [ "$STEINBERG_ME_HARDER" = "yes" ]; then
  gzip -9c < $CWD/man/jack-lxvst.1.optional > $PKG/usr/man/man1/jack-lxvst.1.gz
fi

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cat README > $PKG/usr/doc/$PRGNAM-$VERSION/README
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
sed "s,@WITH@,$WITH," $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
  chown root:audio $PKG/usr/bin/*
  chmod 0750 $PKG/usr/bin/*
fi

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