#!/bin/bash

# Slackware build script for sysdig

# Copyright 2015-2020 Larry Hajali <larryhaja[at]gmail[dot]com>
# 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.

# 20241017 bkw: Modified by SlackBuilds.org, BUILD=2: use new lua 5.4.

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

PRGNAM=sysdig
VERSION=${VERSION:-0.36.1}
BUILD=${BUILD:-2}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

KERNEL=${KERNEL:-$(uname -r)}
PKGVER=${VERSION}_$(echo $KERNEL | tr - _)

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

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$PKGVER-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

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"
else
  SLKCFLAGS="-O2"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION

chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} + -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} +

# Fix manpage location
sed -i 's|share/||' userspace/sysdig/man/CMakeLists.txt

# Determine if dkms is to be used. Default is no.
if [ "${DKMS:-no}" == "yes" ]; then
  USEDKMS="ON"
else
  USEDKMS="OFF"
  sed -i '/sysdig-probe-loader/,$d' scripts/CMakeLists.txt
fi

mkdir -p build
cd build
  cmake -G "Unix Makefiles" \
    -DCMAKE_INSTALL_PREFIX:PATH="/usr" \
    -DSYSDIG_VERSION="$VERSION" \
    -DDIR_ETC:PATH="/etc" \
    -DUSE_BUNDLED_DEPS:BOOL=OFF \
    -DENABLE_DKMS:BOOL="$USEDKMS" \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_BUILD_TYPE=Release ..

  env -u ARCH make VERBOSE=1
  env -u ARCH make install/strip DESTDIR=$PKG
cd -

gzip -9 $PKG/usr/man/man*/*

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a *.md COPYING $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
sed -e "s|@KERNEL@|$KERNEL|" $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$PKGVER-$ARCH-$BUILD$TAG.$PKGTYPE