#!/bin/sh

# Slackware build script for kbfs

# Copyright 2017-2018 Willy Sudiarto Raharjo <willysr@slackbuilds.org>
# 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.

PRGNAM=kbfs
SRCNAM=keybase
VERSION=${VERSION:-2.0.0_20180531221959}
COMMITVER=e59b6ec60d
SRCVER=$(echo $VERSION | tr _ - )
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

KBFS_USER=${KBFS_USER:-keybasehelper}
KBFS_UID=${KBFS_UID:-352}
KBFS_GROUP=${KBFS_GROUP:-keybasehelper}
KBFS_GID=${KBFS_GID:-352}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

bailout() {
  echo "  You must have a $KBFS_USER user and $KBFS_GROUP group to run this script. "
  echo "    # groupadd -g $KBFS_GID $KBFS_GROUP "
  echo "    # useradd -u $KBFS_UID -g $KBFS_GID -c \"keybase helper user\" -s /bin/false $KBFS_USER "
  exit 1
}

# Bail if user and/or group isn't valid on your system
if ! grep -q "^$KBFS_USER:" /etc/passwd; then
  bailout
elif ! grep -q "^$KBFS_GROUP:" /etc/group; then
  bailout
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
  DEBARCH=i386
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
  DEBARCH=i386
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
  DEBARCH=amd64
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
  DEBARCH=i386
fi

set -e


rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $PKG
ar p $CWD/${SRCNAM}_${SRCVER}.${COMMITVER}_${DEBARCH}.deb data.tar.xz | tar xJv
cd $PKG
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 {} \;

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# This is used only by Ubuntu/Debian derivatives
rm -rf $PKG/etc/cron.daily/

mkdir -p $PKG/var/lib/keybase/
(
  ln -s /opt/keybase/mount-readme $PKG/var/lib/keybase/mount1
  chown $KBFS_USER:$KBFS_GROUP $PKG/var/lib/keybase
  ln -s /var/lib/keybase/mount1 $PKG/keybase
)

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

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}