#!/bin/bash

# Copyright 2000-2011, 2013, 2014, 2015, 2016, 2017, 2018, 2019  Patrick J. Volkerding, Sebeka, MN, 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.

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

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

# 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-$(echo $VERSION | tr - _)-$ARCH-$BUILD.txz"
  exit 0
fi

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

TMP=${TMP:-/tmp}
PKG=$TMP/package-ncurses

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  X86_64OPTS=" --with-chtype=long --with-mmask-t=long "
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

ncurses_configure() {
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --enable-colorfgbg \
  --enable-hard-tabs \
  --enable-overwrite \
  --enable-xmc-glitch \
  --with-cxx-shared \
  --with-ospeed=unsigned \
  --with-termlib=tinfo \
  --with-ticlib=tic \
  --with-gpm \
  --with-shared \
  --without-debug \
  --without-normal \
  --without-profile \
  --enable-symlinks \
  --enable-pc-files \
  --with-pkg-config-libdir=/usr/lib${LIBDIRSUFFIX}/pkgconfig \
  --without-ada \
  $X86_64OPTS \
  --program-suffix="" \
  --program-prefix="" \
  $WIDEC \
  --build=$ARCH-slackware-linux
}

rm -rf $PKG
mkdir -p $TMP $PKG

cd $TMP
rm -rf ncurses-$VERSION
tar xvf $CWD/ncurses-$VERSION.tar.?z || exit 1
cd ncurses-$VERSION || exit 1
chown -R root:root .

## NOTE: nevermind trying this... patches have multiple failures. Use the
## dated archive from upstream instead.
#
### No rollup (*.patch.sh) patch available yet for ncurses-6.1, so we'll
### comment this out for now.
## Apply upstream patch collection:
#xzcat $CWD/ncurses-6.0-20160910-patch.sh.xz > ncurses-6.0-20160910-patch.sh
#sh ncurses-6.0-20160910-patch.sh
## Apply weekly ncurses patch updates:
#for file in $CWD/patches/*.patch.gz ; do
#  zcat $file | patch -p1 --verbose || exit 1
#done

zcat $CWD/ncurses.mkhashsize.diff.gz | patch -p1 --verbose || exit 1

# Configure/build/install to package the standard ncurses libraries:
ncurses_configure || exit 1
make $NUMJOBS || exit 1
make install DESTDIR=$PKG || exit 1

# Configure/build/install again with wide character support:
make clean
WIDEC=--enable-widec
ncurses_configure || exit 1
make $NUMJOBS || exit 1
make install DESTDIR=$PKG || exit 1

# Make a termcap file in case anyone actually needs it:
echo "#       /etc/termcap" > misc/termcap
grep \$Revision: misc/terminfo.src >> misc/termcap
grep \$Date: misc/terminfo.src >> misc/termcap
echo "#" >> misc/termcap
echo "#       Converted from terminfo.src for Slackware:" >> misc/termcap
echo "#       tic -C -t terminfo.src > termcap" >> misc/termcap
echo "#" >> misc/termcap
echo "#       This file is included to support legacy applications using libtermcap." >> misc/termcap
echo "#       Modern applications will use ncurses/terminfo instead." >> misc/termcap
echo "#" >> misc/termcap
echo "#------------------------------------------------------------------------------" >> misc/termcap
echo "#" >> misc/termcap
tic -C -t misc/terminfo.src >> misc/termcap
touch -r misc/terminfo.src misc/termcap
mkdir $PKG/etc
cp -a misc/termcap $PKG/etc/termcap

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

# Move the include files from /usr/include into /usr/include/ncurses,
# then make symlinks back into /usr/include.
( cd $PKG/usr/include
  rm -rf ncurses
  mkdir ncurses
  mv *.h ncurses
  for file in ncurses/* ; do
    ln -sf $file .
  done
)

# Make an ncursesw symlink to /usr/include/ncurses:
if [ ! -d $PKG/usr/include/ncursesw -a ! -L $PKG/usr/include/ncursesw ]; then
  ( cd $PKG/usr/include ; ln -sf ncurses ncursesw )
fi

# Move the ncurses libraries into /lib, since they're important:
mkdir -p $PKG/lib${LIBDIRSUFFIX}
( cd $PKG/usr/lib${LIBDIRSUFFIX}
  chmod 755 *.so
  chmod 644 *.a
  mv libncurses.so.6* $PKG/lib${LIBDIRSUFFIX}
  mv libncursesw.so.6* $PKG/lib${LIBDIRSUFFIX}
  mv libtinfo.so.6* $PKG/lib${LIBDIRSUFFIX}
  rm -f libtinfo.so.6
  ln -sf ../../lib${LIBDIRSUFFIX}/libtinfo.so.6 .
)

# Use linker loader scripts to make sure -tinfo dependency works:
( cd $PKG/usr/lib${LIBDIRSUFFIX}
  rm -f libcurses.so libcursesw.so libncurses.so libncursesw.so libtermcap.so
  echo "INPUT(-lncurses)" > libcurses.so
  echo "INPUT(-lncursesw)" > libcursesw.so
  echo "INPUT(libncurses.so.6 -ltinfo)" > libncurses.so
  echo "INPUT(libncursesw.so.6 -ltinfo)" > libncursesw.so
  echo "INPUT(-ltinfo)" > libtermcap.so
)

# Use various upstream/fixed/better terminfo files to update the terminfo
# database. Only *.terminfo files in $CWD/terminfo will be used.
export TERMINFO=$PKG/usr/share/terminfo
for tfile in $CWD/terminfo/*.terminfo ; do
  if [ -r $tfile ]; then
    progs/tic -v $tfile
  fi
done
unset TERMINFO

# Add /usr/doc/ncurses-xxxxx with appropriate files:
mkdir -p $PKG/usr/doc/ncurses-$VERSION
cp -a \
  ANNOUNCE AUTHORS COPYING* INSTALL MANIFEST NEWS README* TO-DO VERSION \
  $PKG/usr/doc/ncurses-$VERSION
mkdir -p $PKG/usr/doc/ncurses-$VERSION/c++
cp -a \
  c++/NEWS c++/PROBLEMS c++/README-first \
  $PKG/usr/doc/ncurses-$VERSION/c++

# We don't need the log of every change here, but we'll take some.
# If you need the whole thing probably you already extracted the
# sources...
if [ -r NEWS ]; then
  DOCSDIR=$(echo $PKG/usr/doc/${PKGNAM}-$VERSION)
  cat NEWS | head -n 1000 > $DOCSDIR/NEWS
  echo >> $DOCSDIR/NEWS
  echo "        +++  SNIP  +++  " >> $DOCSDIR/NEWS
  echo >> $DOCSDIR/NEWS
  echo "  see source code for full file  " >> $DOCSDIR/NEWS
  echo >> $DOCSDIR/NEWS
  touch -r NEWS $DOCSDIR/NEWS
fi

mkdir -p $PKG/install
zcat $CWD/doinst.sh.gz | sed "s,usr/lib,usr/lib${LIBDIRSUFFIX},g" > $PKG/install/doinst.sh
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $TMP/ncurses-$(echo $VERSION | tr - _)-$ARCH-$BUILD.txz