#!/bin/sh
#
# Copyright 2010, 2012, 2013, 2016, 2017, 2018, 2020  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.

# Set initial variables:
cd $(dirname $0) ; CWD=$(pwd)
if [ "$TMP" = "" ]; then
  TMP=/tmp
fi
if [ ! -d $TMP ]; then
  mkdir -p $TMP # location to build the source
fi
PKG=/tmp/package-brltty

PKGNAM=brltty
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-2}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i586 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( 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 "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

if [ "$ARCH" = "x86_64" ]; then
  LIBDIRSUFFIX="64"
else
  LIBDIRSUFFIX=""
fi

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}

rm -rf $PKG
mkdir -p $PKG
cd $TMP
rm -rf brltty-$VERSION
tar xvf $CWD/brltty-$VERSION.tar.?z || exit 1
cd brltty-$VERSION || exit 1

sh autogen

chown -R root:root .
find . -perm 775 -exec chmod 755 {} \+
find . -perm 700 -exec chmod 755 {} \+
find . -perm 744 -exec chmod 755 {} \+
find . -perm 664 -exec chmod 644 {} \+
find . -perm 600 -exec chmod 644 {} \+

./configure \
  --prefix=/usr \
  --bindir=/bin \
  --sbindir=/sbin \
  --libdir=/lib${LIBDIRSUFFIX} \
  --infodir=/usr/info \
  --mandir=/usr/man \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --disable-java-bindings \
  --build=$ARCH-slackware-linux || exit 1

make $NUMJOBS || exit 1
make install INSTALL_ROOT=$PKG || exit 1
chmod 755 $PKG/bin/* $PKG/lib${LIBDIRSUFFIX}/brltty/*

# Add udev rules:
mkdir -p $PKG/lib/udev/rules.d
cp Autostart/Udev/rules $PKG/lib/udev/rules.d/40-usb-brltty.rules || exit 1

( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
)

mkdir -p $PKG/usr/doc/brltty-$VERSION
cp -a \
  README* COPYING* \
  Documents/{ChangeLog,Manual-*,TODO,CONTRIBUTORS,HISTORY,README.*} \
  $PKG/usr/doc/brltty-$VERSION
( cd $PKG/usr/doc/brltty-$VERSION
  find . -name "Makefile*" -exec rm -f {} \+
  find . -name "*.sgml" -exec rm -f {} \+
  find . -size 0 -type f -exec rm -f {} \+
)

# If there's a ChangeLog, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r Documents/ChangeLog ]; then
  DOCSDIR=$(echo $PKG/usr/doc/*-$VERSION)
  cat Documents/ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
  touch -r Documents/ChangeLog $DOCSDIR/ChangeLog
fi

gzip -9 $PKG/usr/man/man?/*.?

mkdir -p $PKG/etc
cp -a Documents/brltty.conf $PKG/etc/brltty.conf.new

mkdir -p $PKG/install
# Write out the doinst.sh:
cat << EOF > $PKG/install/doinst.sh
config() {
  NEW="\$1"
  OLD="\$(dirname \$NEW)/\$(basename \$NEW .new)"
  # If there's no config file by that name, mv it over:
  if [ ! -r \$OLD ]; then
    mv \$NEW \$OLD
  elif [ "\$(cat \$OLD | md5sum)" = "\$(cat \$NEW | md5sum)" ]; then # toss the redundant copy
    rm \$NEW
  fi
  # Otherwise, we leave the .new copy for the admin to consider...
}
config etc/brltty.conf.new

EOF

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

cd $PKG
makepkg -l y -c n ../brltty-$VERSION-$ARCH-$BUILD.txz