#!/bin/bash

# Copyright 2006, 2008, 2009, 2010, 2018, 2022  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=sysstat
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 ;;
    loongarch64) export ARCH=loong64 ;;
    # 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

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

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
  ARCHQUADLET=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
  ARCHQUADLET=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
  ARCHQUADLET=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  ARCHQUADLET=""
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "arm" ]; then
  SLKCFLAGS="-O2 -march=armv4t"
  LIBDIRSUFFIX=""
  ARCHQUADLET="-gnueabi"
elif [ "$ARCH" = "loong64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
  ARCHQUADLET=""
else
  SLKCFLAGS="-O2"
  ARCHQUADLET=""
  LIBDIRSUFFIX=""
fi

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

cd $TMP
rm -rf ${PKGNAM}-${VERSION}
tar xvf $CWD/${PKGNAM}-$VERSION.tar.?z || exit 1
cd ${PKGNAM}-$VERSION || 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="$SLKCFLAGS -DSADC_PATH=/usr/lib$LIBDIRSUFFIX/sa/sadc" \
./configure \
  --prefix=/usr \
  --sysconfdir=/etc \
  conf_dir=/etc/sysstat \
  sa_lib_dir=/usr/lib$LIBDIRSUFFIX/sa \
  --libdir=/usr/lib$LIBDIRSUFFIX \
  --infodir=/usr/info \
  --docdir=/usr/doc/sysstat-$VERSION \
  --mandir=/usr/man \
  --build=loongarch64-slackware-linux || exit 1

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

# Don't include the version number in the configuration file - it is a
# needless detail that forces review of the config file with every
# package update, even if no changes were made from default.
sed -i -e '1s/sysstat-[0-9.]\+/systat/' $PKG/etc/sysstat/sysstat
# Move the config file to .new:
mv $PKG/etc/sysstat/sysstat $PKG/etc/sysstat/sysstat.new

mkdir -p $PKG/etc/rc.d
# Cosmetic touches:
sed -i 's?/etc/rc.d/init.d/sysstat?/etc/rc.d/rc.sysstat?g' sysstat
install -o0 -g0 -vpm644 sysstat $PKG/etc/rc.d/rc.sysstat.new

# 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 [ -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

# Adjust the docs so that they are Slackware-locationised:
# We ignore the 'CHANGES' since they aren't relevant to the running of the system.
sed -i 's?/etc/sysconfig?/etc/sysstat?g' $PKG/usr/doc/$PKGNAM-$VERSION/{README,FAQ}
# "make install" installs the docs but doesn't preserve the time stamps:
for docfile in $( cd $PKG/usr/doc/$PKGNAM-$VERSION ; ls -1 ) ; do
  touch -d "$( find $docfile -printf "%t\n" )" $PKG/usr/doc/$PKGNAM-$VERSION/$docfile
done
# Add crontab example scripts:
mkdir -p $PKG/usr/doc/${PKGNAM}-$VERSION/cron-examples
cp -a \
  cron/*cron* \
  $PKG/usr/doc/${PKGNAM}-$VERSION/cron-examples
rm -f $PKG/usr/doc/${PKGNAM}-$VERSION/cron-examples/*.in

# 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 1000 > $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}
makepkg -l y -c n $TMP/${PKGNAM}-$VERSION-$ARCH-$BUILD.txz