#!/bin/bash

# Slackware build script for cargo-c

# Copyright 2026 Vijay Marcel,India
# Copyright 2023-2024, Alexander Verbovetsky, Moscow, Russia
# 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.
#
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with the distribution.
#
#  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=cargo-c
VERSION=${VERSION:-0.10.24}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}
GITVER=${GITVER:-sbo-rust-vendor-1.0}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
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 [ "$ARCH" = "i586" -o "$ARCH" = "i686" ]; then
  SLKCFLAGS="-march=$ARCH -mtune=i686 -pipe -O2 -fPIC"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-march=x86-64 -mtune=generic -pipe -O2 -fPIC"
  LIBDIRSUFFIX="64"
else
   echo "This SlackBuild will not run on $ARCH" && exit 1
fi

set -e
trap 'echo "$0 FAILED at line $LINENO!" | tee $OUTPUT/error-${PRGNAM}.log' ERR

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 $CWD/$GITVER.tar.gz
cd $GITVER
mv -v cargo-c/$PRGNAM-vendored-sources-$VERSION-$BUILD.tar.xz $TMP/$PRGNAM-$VERSION
cd $TMP/$PRGNAM-$VERSION
tar xvf $PRGNAM-vendored-sources-$VERSION-$BUILD.tar.xz
cd $PRGNAM-$VERSION
mv -v .cargo $TMP/$PRGNAM-$VERSION
mv -v vendor $TMP/$PRGNAM-$VERSION 
cd ..
rm -rvf $PRGNAM-$VERSION

# set cargo_home dir in the build dir 
export CARGO_HOME="$TMP/$PRGNAM-$VERSION/.cargo"

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 CC=${CC:-gcc}
export CXX=${CXX:-g++}
export CFLAGS="$SLKCFLAGS"
export CXXFLAGS="$SLKCFLAGS"

export m=/opt/meson/bin # meson path
export r=/opt/rust/bin # rust path
export rl=/opt/rust/lib${LIBDIRSUFFIX}

PYVER=$(python3 -c 'import sys; print("%d.%d" % sys.version_info[:2])')
export PYTHONPATH=/opt/python$PYVER/site-packages
export PATH=$m:$r:$PATH
export LD_LIBRARY_PATH=$rl

# Target Architecture
TARGET="$(rustc --print host-tuple)"

export RUSTUP_TOOLCHAIN='stable'
export LIBSSH2_SYS_USE_PKG_CONFIG=1
export LIBSQLITE3_SYS_USE_PKG_CONFIG=1

# Build
cargo build --offline --target $TARGET --release --manifest-path $TMP/$PRGNAM-$VERSION/Cargo.toml

mkdir -pv $PKG/usr/bin

install -Dvm755 target/$TARGET/release/cargo-{capi,cbuild,cinstall,ctest} -t $PKG/usr/bin

rm -f $PKG/usr/lib${LIBDIRSUFFIX}/*.la

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

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a README.md LICENSE $PKG/usr/doc/$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

# Cleanup CARGO_HOME and possible unnecessary artifacts in $PKG.
rm -rf "$CARGO_HOME" "$PKG/usr/.cargo" "$PKG/usr/.crates*"

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