#!/bin/bash

# Copyright 2006-2018  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=pmake
VERSION=${VERSION:-1.111}
BUILD=${BUILD:-7}

# 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

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

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

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -Wall -DMACHINE_ARCH=\\\"${ARCH}\\\" -DHAVE_SETENV -DHAVE_STRERROR -DHAVE_STRDUP -DHAVE_STRFTIME -DHAVE_VSNPRINTF -D_GNU_SOURCE"
elif [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -Wall -DMACHINE_ARCH=\\\"${ARCH}\\\" -DHAVE_SETENV -DHAVE_STRERROR -DHAVE_STRDUP -DHAVE_STRFTIME -DHAVE_VSNPRINTF -D_GNU_SOURCE"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2 -Wall -DMACHINE_ARCH=\\\"${ARCH}\\\" -DHAVE_SETENV -DHAVE_STRERROR -DHAVE_STRDUP -DHAVE_STRFTIME -DHAVE_VSNPRINTF -D_GNU_SOURCE"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC -Wall -DMACHINE_ARCH=\\\"${ARCH}\\\" -DHAVE_SETENV -DHAVE_STRERROR -DHAVE_STRDUP -DHAVE_STRFTIME -DHAVE_VSNPRINTF -D_GNU_SOURCE"
else
  SLKCFLAGS="-O2 -Wall -DMACHINE_ARCH=\\\"${ARCH}\\\" -DHAVE_SETENV -DHAVE_STRERROR -DHAVE_STRDUP -DHAVE_STRFTIME -DHAVE_VSNPRINTF -D_GNU_SOURCE"
fi

cd $TMP
rm -rf ${PKGNAM}
tar xvf $CWD/${PKGNAM}-$VERSION.tar.gz || exit 1
cd ${PKGNAM} || exit 1
zcat $CWD/pmake_1.111-1.diff.gz | patch -p1 || exit 1

# Not sure why the defines in the cflags didn't work here, but
# we'll just hit it with a big hammer:
zcat $CWD/pmake.strerror.strdup.diff.gz | patch -p1 || exit 1

if [ "$ARCH" != "i[3456]86" ]; then
  sed -i -e "s/i386/$ARCH/" Makefile.boot
fi

# 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 {} \+

CFLAGS="$SLKCFLAGS" make -f Makefile.boot || exit 1

mkdir -p $PKG/usr/bin
cp bmake $PKG/usr/bin/pmake
chown root:root $PKG/usr/bin/pmake
chmod 755 $PKG/usr/bin/pmake

mkdir -p $PKG/usr/share/mk
cp -a mk/*.mk $PKG/usr/share/mk
chmod 644 $PKG/usr/share/mk/*
chown -R root:root $PKG/usr/share/mk

mkdir -p $PKG/usr/man/man1
gzip -9c make.1 > $PKG/usr/man/man1/pmake.1.gz

# Strip binaries:
( 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
)

# Add a documentation directory:
mkdir -p $PKG/usr/doc/${PKGNAM}-$VERSION
( cd PSD.doc
  # This is too ugly to watch...
  ../bmake -m ../mk 2> /dev/null
  ps2ascii paper.ps > $PKG/usr/doc/${PKGNAM}-$VERSION/pmake.txt
)

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

cd $PKG
makepkg -l y -c n $TMP/${PKGNAM}-$VERSION-$ARCH-$BUILD.txz