#!/bin/bash

# Slackware build script for unmake

# Copyright Ioannis Anagnostakis, 2025.
# Modified and now maintained by B. Watson <urchlay@slackware.uk>.
#
# 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.

# 20261003 bkw:
# - take over maintenance
# - update for v0.0.27.
# - build from source rather than repacking a binary.
# - include docs in package.
# - expand the README.

# 20261003 bkw: unlike most Rust builds, upstream was kind enough to
# include full vendored sources. Unfortunately, the build fails when
# I try to use them. *Many* thanks to fourtysixandtwo for creating the
# unmake-vendored-sources tarball that made this build actually work.

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

PRGNAM=unmake
VERSION=${VERSION:-0.0.27}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}
VSBUILD=${VSBUILD:-1}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i686 ;;
    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}

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz --no-same-owner
rm -rf $PRGNAM-$VERSION/vendor
rm -rf $PRGNAM-$VERSION/.cargo
tar xvf $CWD/$PRGNAM-vendored-sources-$VERSION-$VSBUILD.tar.xz
cd $PRGNAM-$VERSION
find . ! -type l    -a \( \
  \(     -perm /111 -a ! -perm 755 -a -exec chmod -f 755 {} + \) -o \
  \(   ! -perm /111 -a ! -perm 644 -a -exec chmod -f 644 {} + \) \)

export CARGO_NET_OFFLINE=true
export CARGO_HOME=$(pwd)/.cargo
export PATH="/opt/rust/bin:$PATH"
export LD_LIBRARY_PATH="/opt/rust/lib"

cargo build --offline --release

install -Dm755 target/release/unmake $PKG/usr/bin/unmake

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
cp -a LICENSE.md README.md SYNTAX.md WARNINGS.md $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$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