#!/bin/bash
# Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2013, 2018, 2019, 2020, 2024  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=dialog

# Think twice (or more) before upgrading this - the latest versions completely
# destroy the careful formatting in the Slackware installer. While it's lost
# to history now for the most part, I was the original beta tester for dialog,
# which was created to support our installer. I even wrote the --infobox widget
# before the first release. While I appreciate the advances dialog has made in
# the years since then, I'm not about to quickly shoot myself in the foot again
# (think tar-1.13 ;-). If you are reading this and think that Slackware "needs"
# to have the latest dialog, I'm willing to listen to your rationale. However,
# unless it's been tested with the installer and every other script in Slackware
# that uses dialog and found to work, and you've already gotten any needed
# patches accepted upstream... well... I like this version. If it's got bugs,
# they aren't bugs that I'm running into often.
#
# Update: dialog-1.3-20191210 actually passes the formatting tests here (with a
# couple of patches), so we will take our first dialog upgrade in quite a while.
#VERSION=1.3-20191210
# We'll determine $VERSION automatically again (for now):
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z | rev | cut -f 3- -d . | cut -f 1,2 -d - | rev)}

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

TMP=${TMP:-/tmp}
PKG=$TMP/package-${PKGNAM}
rm -rf $PKG
mkdir -p $TMP $PKG

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "armv7hl" ]; then
  SLKCFLAGS="-O3 -march=armv7-a -mfpu=vfpv3-d16"
  LIBDIRSUFFIX=""
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

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

cd $TMP
rm -rf ${PKGNAM}-${VERSION}
tar xvf $CWD/${PKGNAM}-$VERSION.tar.?z || exit 1
cd ${PKGNAM}-$VERSION || exit 1

# These patches take care of the formatting issues that were preventing
# us from moving to a more recent version of dialog:
zcat $CWD/dialog.all.use_height.diff.gz | patch -p1 --verbose || exit 1
zcat $CWD/dialog.smaller.min.height.diff.gz | patch -p1 --verbose || exit 1
zcat $CWD/dialog.no.aspect.ratio.autoajust.patch.gz | patch -p1 --verbose || exit 1

# Make sure ownerships and permissions are sane:
chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \+ -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \+

# Configure:
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --disable-static \
  --enable-nls \
  --with-ncursesw \
  --enable-widec \
  --build=$ARCH-slackware-linux

# Build and install:
make $NUMJOBS || exit 1
make install DESTDIR=$PKG || exit 1

# Keep the old traditional looknfeel :-)
mkdir -p $PKG/etc
cat samples/slackware.rc > $PKG/etc/dialogrc

# Don't package this static library:
rm -f $PKG/usr/lib${LIBDIRSUFFIX}/libdialog.a
rmdir $PKG/usr/lib${LIBDIRSUFFIX} 2> /dev/null

# Ship the config file as .new:
mv $PKG/etc/dialogrc $PKG/etc/dialogrc.new

mkdir -p $PKG/bin
mv $PKG/usr/bin/dialog $PKG/bin
( cd $PKG/usr/bin
  ln -sf ../../bin/dialog .
)

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

# Compress and link manpages, if any:
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1) ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi

# Add a documentation directory:
mkdir -p $PKG/usr/doc/${PKGNAM}-$VERSION
cp -a \
  COPYING* README* VERSION dialog.lsm \
  $PKG/usr/doc/${PKGNAM}-$VERSION

# If there's a CHANGES file, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r CHANGES ]; then
  DOCSDIR=$(echo $PKG/usr/doc/${PKGNAM}-$VERSION)
  cat CHANGES | head -n 2500 > $DOCSDIR/CHANGES
  touch -r CHANGES $DOCSDIR/CHANGES
fi

mkdir -p $PKG/install
zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $TMP/package-${PKGNAM}
/sbin/makepkg -l y -c n $TMP/${PKGNAM}-$(echo $VERSION | tr - _)-$ARCH-$BUILD.txz