#!/bin/busybox sh
#
# Copyright (c) 2019 David Demelier <markand@malikania.fr>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#

# TODO: add SELINUX option.

PKGNAME=cryptsetup
PKGVERSION=2.2.1
PKGREVISION=1
PKGLICENSE="GPLv20 LGPLv21"
PKGSUMMARY=" etup cryptographic volumes for dm-crypt (including LUKS extension)"
PKGDOWNLOAD="https://www.kernel.org/pub/linux/utils/$PKGNAME/v${PKGVERSION%.*}/$PKGNAME-$PKGVERSION.tar.xz"
PKGDEPENDS="argon2 json-c lvm2 popt util-linux"
PKGOPTIONS="NLS SSL UDEV"

: ${CHOST:=$(uname -m)-linux-musl}
: ${CBUILD:=$(uname -m)-linux-musl}
: ${CC:=clang}
: ${CFLAGS:=-O2}
: ${LDFLAGS:=}
: ${LIBS:=}
: ${NLS:=yes}
: ${SSL:=libressl}      # Note: can be libressl (or yes), nettle, gnutls.
: ${UDEV:=yes}

if [ "$NLS" = "yes" ]; then
	PKGDEPENDS="gettext $PKGDEPENDS"
	with_nls="--enable-nls"
else
	with_nls="--disable-nls"
fi

case $SSL in
"yes"|"libressl")
	PKGDEPENDS="libressl $PKGDEPENDS"
	with_ssl="--with-crypto_backend=openssl"
	;;
"nettle")
	PKGDEPENDS="nettle $PKGDEPENDS"
	with_ssl="--with-crypto_backend=nettle"
	;;
*)
	with_ssl="--with-crypto_backend=kernel"
	;;
esac

if [ "$UDEV" = "yes" ]; then
	PKGDEPENDS="eudev $PKGDEPENDS"
	with_udev="--enable-udev"
else
	with_udev="--disable-udev"
fi

build()
{
	rm -rf $PKGNAME-$PKGVERSION
	tar xvf $PKGNAME-$PKGVERSION.tar.xz
	cd $PKGNAME-$PKGVERSION

	CC="$CC" \
	CFLAGS="$CFLAGS" \
	LDFLAGS="$LDFLAGS" \
	LIBS="$LIBS" \
	./configure \
		--build=$CBUILD \
		--host=$CHOST \
		--prefix= \
		--sbindir=/bin \
		--disable-internal-argon2 \
		--enable-libargon2 \
		$with_nls \
		$with_ssl \
		$with_udev
	make
	make install DESTDIR=$DESTDIR
	find $DESTDIR -type f -name "*.la" -delete

	cd ..
	rm -rf $PKGNAME-$PKGVERSION
}