#!/bin/bash

# Copyright 2005-2022  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.

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

PKGNAM=sysvinit
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${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-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

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

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

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

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 {} \+

# Fix paths for /etc/forcefsck and /etc/fastboot:
zcat $CWD/sysvinit.paths.diff.gz | patch -p1 -E --verbose --backup --suffix=.orig || exit 1

# Fix failure to show program version:
zcat $CWD/sysvinit.always.define.version.diff.gz | patch -p1 --verbose || exit 1

# Use /dev/initctl instead of /run/initctl ; this is a named pipe and probably
# should be in /dev anyway, but more importantly, having the upgraded package
# expect it in /run breaks shutdown/reboot without manual intervention:
for replace in src/shutdown.c src/Makefile src/initreq.h src/init.c doc/initctl doc/Install man/init.8 man/initctl.5 man/po/* ; do
  sed -i "s|run/initctl|dev/initctl|g" $replace
done

# Since they usually don't update the version here, let's try to make sure:
sed -i "s/define VERSION.*/define VERSION \"$VERSION\"/g" src/init.c

mkdir -p $PKG/usr/doc/sysvinit-$VERSION
cp -a COPYING* COPYRIGHT* README* \
  doc/* \
  $PKG/usr/doc/sysvinit-$VERSION
# This is interesting, but it looks like the output won't really work out
# of the box, so we'll add it as a contrib example to the docs:
mkdir -p $PKG/usr/doc/sysvinit-$VERSION/contrib
cp -a contrib/sysd2v.sh $PKG/usr/doc/sysvinit-$VERSION/contrib

cd src
make clobber || exit 1
make || exit 1

mkdir -p $PKG/etc/inittab.d
mkdir -p $PKG/sbin
for program in bootlogd halt init killall5 shutdown runlevel ; do
  strip --strip-unneeded $program
  cat $program > $PKG/sbin/$program
  chmod 755 $PKG/sbin/$program
  chown root:root $PKG/sbin/$program
done
mkdir -p $PKG/usr/bin
for program in last ; do
  strip --strip-unneeded $program
  cat $program > $PKG/usr/bin/$program
  chmod 755 $PKG/usr/bin/$program
  chown root:root $PKG/usr/bin/$program
done
( cd $PKG/usr/bin ; ln -sf last lastb )
mv $PKG/sbin/init $PKG/sbin/init.new
chmod 755 $PKG/sbin/init.new
chown root:root $PKG/sbin/init.new

cd ../man
mkdir -p $PKG/usr/man/man{1,5,8}
for page in last.1 ; do
  cat $page | gzip -9c > $PKG/usr/man/man1/$page.gz
done
for page in initctl.5 inittab.5 initscript.5 ; do
  cat $page | gzip -9c > $PKG/usr/man/man5/$page.gz
done
for page in halt.8 init.8 killall5.8 poweroff.8 reboot.8 runlevel.8 \
  shutdown.8 telinit.8 bootlogd.8 ; do
  cat $page | gzip -9c > $PKG/usr/man/man8/$page.gz
done
( cd $PKG/usr/man/man1 ; ln -sf last.1.gz lastb.1.gz )

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

# Build the package:
cd $PKG
makepkg -l y -c n $TMP/sysvinit-$VERSION-$ARCH-$BUILD.txz