#!/bin/bash
# Copyright 2009, 2010, 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=rdist
VERSION=${VERSION:-6.1.5}
BUILD=${BUILD:-5}

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 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-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

if [ "$TMP" = "" ]; then
  TMP=/tmp
fi
PKG=$TMP/package-${PKGNAM}
rm -rf $PKG
mkdir -p $PKG

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2"
fi

cd $TMP

rm -rf $PKGNAM-$VERSION
tar xf $CWD/$PKGNAM-$VERSION.tar.gz || exit 1

cd ${PKGNAM}-$VERSION

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

# Patch:
for diff in $CWD/*.diff.gz ; do
  zcat $diff | patch -p1 --verbose || exit 1
done

# Build:
make $NUMJOBS || make || exit 1

# Install:
mkdir -p $PKG/usr/bin
cp -a src/{rdist,rdistd} $PKG/usr/bin

mkdir -p $PKG/usr/man/man1
cat doc/rdist.man | gzip -9c > $PKG/usr/man/man1/rdist.1.gz
cat doc/rdistd.man | gzip -9c > $PKG/usr/man/man1/rdistd.1.gz

mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a \
  $CWD/rdist-eu-license.txt Copyright README \
  $PKG/usr/doc/$PKGNAM-$VERSION

# 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
)

# 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

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

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