#!/bin/sh

# Copyright (c) 2007, 2009 Eric Hameleers <alien@slackware.com>
# Copyright (c) 2007, 2009 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.

# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:        Eric Hameleers <alien@slackware.com>
# For:       cryptsetup
# Descr:     Utility for setting up encrypted filesystems
# URL:       http://luks.endorphin.org/dm-crypt
# 
# -----------------------------------------------------------------------------

PRGNAM=cryptsetup
VERSION=${VERSION:-1.0.7}
ARCH=${ARCH:-x86_64}
BUILD=${BUILD:-1}


if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
fi

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-cryptsetup

rm -rf $PKG
mkdir -p $TMP $PKG/usr

cd $TMP
rm -rf cryptsetup-$VERSION
tar xvf $CWD/cryptsetup-$VERSION.tar.bz2 || exit 1
cd cryptsetup-$VERSION
chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \; -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;

echo Building ...
LDFLAGS="$SLKLDFLAGS" \
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --localstatedir=/var \
  --sysconfdir=/etc \
  --mandir=/usr/man \
  --enable-libgcrypt \
  --enable-libdevmapper \
  --program-prefix= \
  --program-suffix= \
  --build=$ARCH-slackware-linux
make
make DESTDIR=$PKG install

# 
# Next, make the static version that we will use for mkinitrd:
#

make clean
echo Building ...
LDFLAGS="$SLKLDFLAGS" \
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --localstatedir=/var \
  --sysconfdir=/etc \
  --mandir=/usr/man \
  --enable-libgcrypt \
  --enable-libdevmapper \
  --enable-static \
  --disable-shared \
  --disable-shared-library \
  --program-prefix= \
  --program-suffix= \
  --build=$ARCH-slackware-linux
make

# I have to do one old-school thing to leave a mark here:
mkdir -p $PKG/sbin
cat src/cryptsetup > $PKG/sbin/cryptsetup.static
chmod 755 $PKG/sbin/cryptsetup.static

mv $PKG/usr/sbin/cryptsetup $PKG/usr/sbin/cryptsetup.dynamic
# Replace with a link:
( cd $PKG/usr/sbin ; ln -sf cryptsetup.dynamic cryptsetup )
# In /sbin, use the static version as /usr *might* not be mounted yet.
# However, note that some cryptsetup operations cause the static
# version to segfault, so for things like formatting you'll want
# to use the dynamic one.  That's what should be in the $PATH first.
( cd $PKG/sbin ; ln -sf cryptsetup.static cryptsetup )

# Remove unneeded empty directory:
#rmdir $PKG/usr/lib/cryptsetup

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  AUTHORS COPYING* ChangeLog INSTALL NEWS README TODO \
  $PKG/usr/doc/$PRGNAM-$VERSION
chmod -R a-w $PKG/usr/doc/$PRGNAM-$VERSION/*

find $PKG/usr/man -type f -name "*.?" -exec gzip -9f {} \; || true

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

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

cd $PKG
/sbin/makepkg -l y -c n $TMP/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.txz