#!/bin/bash
ulimit -s unlimited
shopt -s extglob

# cryfs.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter for Slackware ARM.
#
# Copyright 2018, 2019, 2020  Eric Hameleers, Eindhoven, NL
# Copyright 2020  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.

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
slackset_var_cwds

# Temporary build locations:
export TMPBUILD=$TMP/build-$PKGNAM
export PKG=$TMP/package-$PKGNAM
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Extract source:
tar xvvf $CWD/$PKGNAM-$VERSION.tar.!(*sign|*asc|*sig)
cd $PKGNAM-$VERSION || exit 1
slackhousekeeping

# Oddly, cryfs expects a static boost, so we'll need to hit it with the LART:
export LDFLAGS="$SLKLDFLAGS -lboost_thread -lboost_program_options -lboost_filesystem -lboost_chrono -lcryptopp -lfuse"

# Adjust architecture flags:
case $ARCH in
   arm|aarch64) export SLKCFLAGS="$SLKCFLAGS -fPIC";;
esac

# Apply patches:
# gcc11 fixes:
zcat $CWD/27587ea1acec5f939a31217f1c43953378f18821.patch.gz | patch -p1 --verbose || exit 1

# Boost 1.77.0 fix:
zcat $CWD/041b5baea5a4efceff33df2f316646b47a1cd7c0.patch.gz | patch -p1 --verbose || exit 1

# Configure:
mkdir cmake-build
pushd cmake-build
cmake \
   -DCMAKE_BUILD_TYPE=Release \
   -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
   -DCMAKE_C_FLAGS_RELEASE:STRING="$SLKCFLAGS" \
   -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
   -DCMAKE_CXX_FLAGS_RELEASE:STRING="$SLKCFLAGS" \
   -DCMAKE_INSTALL_PREFIX=/usr \
   -DCMAKE_INSTALL_MANDIR=/usr/man \
   -DBUILD_TESTING=OFF \
   -DBUILD_SHARED_LIBS=ON \
   -DBUILD_TESTING=OFF \
   -DBoost_INCLUDE_DIRS=/usr/include/boost \
   -DBoost_USE_STATIC_LIBS=OFF \
   -DCRYFS_UPDATE_CHECKS=OFF \
   .. || failconfig

# Build:
make $NUMJOBS || make || failmake

# Install into package:
make install DESTDIR=$PKG || failinstall
# When compiling against a shared boost, these fail to install properly without help:
mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}
install -m0755 ./src/cryfs-cli/libcryfs-cli.so $PKG/usr/lib${LIBDIRSUFFIX}/libcryfs-cli.so
install -m0755 ./src/cryfs-unmount/libcryfs-unmount.so $PKG/usr/lib${LIBDIRSUFFIX}/libcryfs-unmount.so
popd

# Add documentation:
mkdir -vpm755 $PKG/usr/doc/$PKGNAM-$VERSION
cp -fav \
  ChangeLog* README* LICENSE* \
  $PKG/usr/doc/$PKGNAM-$VERSION
changelogliposuction ChangeLog $PKGNAM $VERSION # Trim down a "ChangeLog" file

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall        # strip all .a archives and all ELFs
#slackstriprpaths     # strip rpaths
slack_delete_lafiles # delete usr/lib{,64}/*.la
slackgzpages -i      # compress man & info pages and delete usr/info/dir
slackslack           # set standard Slackware file/dir permissions and ownerships
slackdesc            # install slack-desc and doinst.sh
slackmp         # run makepkg -l y -c n

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links