#!/bin/bash

# Slackware build script for aardvark-dns

# Copyright 2025 Gustavo B. Schenkel, Porto Alegre/RS, Brazil
# 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)

PRGNAM=aardvark-dns
VERSION=${VERSION:-1.15.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
    case "$(uname -m)" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
    *) ARCH=$(uname -m) ;;
    esac

  if [ "$ARCH" = "i586" ]; then
    if rustc -Vv | grep host | grep i686 > /dev/null ; then
      ARCH=i686
    fi
  fi
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
    echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
    exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
  TARGET="$ARCH-unknown-linux-gnu"
  CARGOTARGET="--target $TARGET"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
  TARGET="$ARCH-unknown-linux-gnu"
  CARGOTARGET="--target $TARGET"
elif [ "$ARCH" = "x86_64" ] || [ "$ARCH" = "aarch64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
  TARGET="$ARCH-unknown-linux-gnu"
  CARGOTARGET="--target $TARGET"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
  TARGET=""
  CARGOTARGET=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-v$VERSION-vendor.tar.gz

mkdir -p .cargo
cat << EOF >> .cargo/config.toml
[source.crates-io]
replace-with = 'vendored-sources'

[source.vendored-sources]
directory = 'vendor'
EOF

chown -R root:root .
find -L . \
    \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
    -o -perm 511 \) -exec chmod 755 {} \; -o \
    \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
    -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

export PATH="/opt/rust/bin:$PATH"
if [ -z "$LD_LIBRARY_PATH" ]; then
  export LD_LIBRARY_PATH="/opt/rust/lib$LIBDIRSUFFIX"
else
  export LD_LIBRARY_PATH="/opt/rust/lib$LIBDIRSUFFIX:$LD_LIBRARY_PATH"
fi

CARGO_HOME=.cargo \
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
cargo build --offline --release $CARGOTARGET

install -D -s -m0755 target/$TARGET/release/$PRGNAM $PKG/usr/libexec/podman/$PRGNAM

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF |
    cut -f 1 -d : | xargs strip --strip-unneeded 2>/dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
    LICENSE README.md RELEASE_NOTES.md \
    $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild >$PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE