#!/bin/bash

# Copyright 2005-2021  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=freetype
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z | cut -d - -f 2 | rev | cut -f 3- -d . | rev)}
BUILD=${BUILD:-1}

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}

# 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

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

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

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf freetype-$VERSION
tar xvf $CWD/freetype-$VERSION.tar.?z || exit 1
cd freetype-$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 {} \+

# The line below enables code patented by Microsoft, so don't uncomment it
# unless you have a license to use the code and take all legal responsibility
# for doing so. With the new subpixel hinting modes there's not much reason
# to want to use this anyway.
# Please see this web site for more details:
#   http://www.freetype.org/patents.html
#zcat $CWD/freetype.subpixel.rendering.diff.gz | patch -p1 --verbose || exit 1

# Compile support into the Freetype library for both the Infinality and
# new 2.7.x (default) subpixel hinting modes. To adjust your preferences
# (the classic hinting mode is also available), see the freetype profile
# scripts in /etc/profile.d/.
zcat $CWD/freetype.compile.both.subpixel.hinting.methods.diff.gz | patch -p1 --verbose || exit 1

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --docdir=/usr/doc/$PKGNAM-$VERSION \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --disable-static \
  --with-zlib=yes \
  --with-bzip2=yes \
  --with-png=yes \
  --enable-freetype-config \
  --build=$ARCH-slackware-linux || exit 1
make $NUMJOBS || make || exit 1
make install DESTDIR=$PKG || exit 1

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

# Install runtime profile configuration scripts, used to set hinting defaults:
mkdir -p $PKG/etc/profile.d
cp -a $CWD/freetype.csh.gz $PKG/etc/profile.d
cp -a $CWD/freetype.sh.gz $PKG/etc/profile.d
gzip -d $PKG/etc/profile.d/*
chown root:root $PKG/etc/profile.d/*
chmod 755 $PKG/etc/profile.d/*
mv $PKG/etc/profile.d/freetype.csh $PKG/etc/profile.d/freetype.csh.new
mv $PKG/etc/profile.d/freetype.sh $PKG/etc/profile.d/freetype.sh.new

# This shouldn't be needed (apps should pick up -I/usr/include/freetype2 from
# `freetype-config --cflags` while compiling), but it's so often reported as
# a bug that I'll give in to the point.  Now that Freetype1 is pretty much gone
# having this link shouldn't hurt anything.  Try not to rely on it, though.
mkdir -p $PKG/usr/include
( cd $PKG/usr/include
  rm -rf freetype
  ln -sf freetype2 freetype
)

# Can't imagine a lot of use for this:
rm -f $PKG/usr/lib${LIBDIRSUFFIX}/*.a

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

mv $PKG/usr/share/man $PKG/usr/man
find $PKG/usr/man -type f -exec gzip -9 {} \+

mkdir -p $PKG/usr/doc/freetype-$VERSION
cp -a \
  docs \
  ChangeLog LICENSE* README* \
  $PKG/usr/doc/freetype-$VERSION
# too much
rm -rf $PKG/usr/doc/freetype-$VERSION/docs/reference $PKG/usr/doc/freetype-$VERSION/docs/oldlogs

# If there's a ChangeLog file, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r docs/ChangeLog ]; then
  DOCSDIR=$(echo $PKG/usr/doc/${PKGNAM}-$VERSION)/docs
  cat docs/ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
  touch -r ChangeLog $DOCSDIR/ChangeLog
fi

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

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