#!/bin/bash

# Copyright 2009  Robby Workman, Northport, AL, USA
# Copyright 2009, 2010, 2016, 2018  Patrick J. Volkerding, Sebeka, MN, 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.

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

PKGNAM=crda
VERSION=${VERSION:-4.14}
BUILD=${BUILD:-3}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i586 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

REGDBVERS=2019.06.03

TMP=${TMP:-/tmp}
PKG=$TMP/package-crda

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "arm" ]; then
  SLKCFLAGS="-O2 -march=armv4 -mtune=xscale"
elif [ "$ARCH" = "armel" ]; then
  SLKCFLAGS="-O2 -march=armv4t"
else
  SLKCFLAGS="-O2"
fi

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

# First, we need to install the wireless regulatory bin
cd $TMP
tar xvf $CWD/wireless-regdb-$REGDBVERS.tar.xz || exit 1
cd wireless-regdb-$REGDBVERS || exit 1
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 {} \+

# If this isn't installed on the system, crda will not build:
make install MANDIR=/usr/man || exit 1

# Install to the package directory:
make install DESTDIR=$PKG MANDIR=/usr/man || exit 1

mkdir -p $PKG/usr/doc/crda-$VERSION/regdb
cp -a LICENSE README db.txt $PKG/usr/doc/crda-$VERSION/regdb

# Now we'll do crda itself
cd $TMP
rm -rf crda-$VERSION
tar xvf $CWD/crda-$VERSION.tar.?z* || exit 1
cd crda-$VERSION || exit 1
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 {} \+

# This thing uses our CFLAGS on its own, but if we specify them,
# it fails to build. The build failure is wacky, as if it's not
# linking libnl into crda.o -- the detection for libnl is broken,
# but even if it's fixed, the errors still occur. This works, so...
sed -i -e "s,-Werror ,,g" -e "s,fpic,fPIC,g" Makefile

make \
  MANDIR=/usr/man \
  LIBDIR=/usr/lib${LIBDIRSUFFIX} \
  || exit 1
make install \
  MANDIR=/usr/man \
  LIBDIR=/usr/lib${LIBDIRSUFFIX} \
  DESTDIR=$PKG \
  || exit 1

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

# Manpages are already compressed

mkdir -p $PKG/usr/doc/crda-$VERSION
cp -a \
  LICENSE README \
  $PKG/usr/doc/crda-$VERSION

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

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