#!/bin/sh

# Slackware build script for cogl

# Copyright 2021 Rafael Tavares (mdrafaeltavares@gmail.com) Bahia, Brazil.
# Based on Gentoo ebuild script (Thanks so much!):
# https://gitweb.gentoo.org/repo/gentoo.git/tree/media-libs/cogl/cogl-1.22.8.ebuild
# 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=$(basename $0 | cut -f1 -d.)
VERSION=${VERSION:-$(find . -maxdepth 1 -name "$PRGNAM-*.tar.?z*" | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-1}
TAG=${TAG:-_gfs}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/gfs}
PKG=$TMP/pkg-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}
JOBS=${JOBS:-" -j$(expr $(getconf _NPROCESSORS_ONLN) \* 2 ) "}

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

set -e

UMASKBKP=$(umask)
umask 0022

DEPCHK=""

if [ -z $VERSION ]
 then
 VERSION=1.22.8
fi

MDSCHK=7dd8b2e24171ef7399f851cea144b569
DWNLCMD=${DWNLCMD:-"wget -c --no-check-certificate"}
SRCDOWN=${SRCDOWN:-"https://download.gnome.org/sources/$PRGNAM/$(echo $VERSION | cut -f1,2 -d.)/$PRGNAM-$VERSION.tar.xz"}

if [ -z $(find . -maxdepth 1 -name "$PRGNAM-$VERSION.tar.?z*") ]
then
 $DWNLCMD $SRCDOWN
else
 if md5sum -c <<<"$MDSCHK $(echo $PRGNAM-$VERSION.tar.?z*)";
  then
   continue
  else
   rm -rf $PRGNAM-$VERSION.tar.?z*
   $DWNLCMD $SRCDOWN
 fi
fi


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

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 {} \;

# Do not build examples
sed -e "s/^\(SUBDIRS +=.*\)examples\(.*\)$/\1\2/" \
 -i Makefile.am Makefile.in

# For some reason the configure switch will not completely disable
# tests being built
sed -e "s/^\(SUBDIRS =.*\)test-fixtures\(.*\)$/\1\2/" \
 -e "s/^\(SUBDIRS +=.*\)tests\(.*\)$/\1\2/" \
 -e "s/^\(.*am__append.* \)tests\(.*\)$/\1\2/" \
 -i Makefile.am Makefile.in || false

SLKCFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
 --prefix=/usr \
 --libdir=/usr/lib${LIBDIRSUFFIX} \
 --mandir=/usr/man \
 --docdir=/usr/doc/$PRGNAM-$VERSION \
 --enable-installed-tests=no \
 --enable-emscripten=no \
 --enable-standalone=no \
 --enable-debug=no \
 --enable-unit-tests=no \
 --enable-cairo=yes\
 --enable-profile=no \
 --enable-maintainer-flags=no \
 --enable-deprecated=yes \
 --enable-glib=yes \
 --enable-cogl-pango=yes \
 --enable-cogl-gst=yes \
 --enable-cogl-path=yes \
 --enable-gdk-pixbuf=yes \
 --enable-quartz-image=no \
 --enable-examples-install=no \
 --enable-gles1=yes \
 --enable-gles2=yes \
 --enable-gl=yes \
 --enable-cogl-gles2=yes \
 --enable-glx=yes \
 --enable-wgl=auto \
 --enable-sdl=no \
 --enable-sdl2=no \
 --enable-null-egl-platform=no \
 --enable-gdl-egl-platform=no \
 --enable-wayland-egl-platform=yes \
 --enable-kms-egl-platform=yes \
 --enable-wayland-egl-server=yes \
 --enable-android-egl-platform=no \
 --enable-mir-egl-platform=no \
 --enable-xlib-egl-platform=yes \
 --enable-introspection=yes \
 --disable-static \
 --build=$ARCH-slackware-linux

make $JOBS || make
make install DESTDIR=$PKG

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

find $PKG -name '*.la' -delete

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a COPYING ChangeLog NEWS README* \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$(basename $0) > $PKG/usr/doc/$PRGNAM-$VERSION/$(basename $0)

mkdir -p $PKG/install
#      |-----handy-ruler------------------------------------------------------|
cat <<EOT >$PKG/install/slack-desc
$PRGNAM:
$PRGNAM: COGL
$PRGNAM:
$PRGNAM: COGL is a low level OpenGL abstraction library developed for (and
$PRGNAM: part of) Clutter. It is used primarily by Clutter to provide a common
$PRGNAM: rendering API that works transparently across OpenGL >=1.4, OpenGL ES
$PRGNAM: 1.1 and OpenGL ES 2.0.
$PRGNAM:
$PRGNAM:
$PRGNAM: https://developer.gnome.org/cogl/
$PRGNAM:
EOT

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

umask ${UMASKBKP}