#!/bin/bash

# TeXLive build script for Slackware

# Copyright 2009, 2017 - 2021  Patrick J. Volkerding, Sebeka, MN, USA
# Copyright 2009 - 2014  Robby Workman, Northport, AL, USA
# Copyright 2016 - 2017  Johannes Schoepfer, Germany
# 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.

# URL: ftp://tug.org/historic/systems/texlive/
# Testrelease: ftp://tug.org/texlive/Images/test/
# Upstream stable fixes: svn://tug.org/texlive/branches/branch2021/Build/source

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

PKGNAM=texlive
SOURCEVERSION=${SOURCEVERSION:-20210324}
TEXMFVERSION=${TEXMFVERSION:-210418}
VERSION=${VERSION:-2021.$TEXMFVERSION}
BUILD=${BUILD:-2}

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

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

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

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

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf texlive-$SOURCEVERSION-source
tar xvf $CWD/texlive-${SOURCEVERSION}-source.tar.xz || exit 1
cd texlive-$SOURCEVERSION-source || exit 1
chown -R root:root .
chmod -R u+w,go-w,a+rX-st .

# fixes from stable branch
cat $CWD/patches/fixes-210420.patch | patch -p1 --verbose || exit 1

mkdir build
cd build
  CFLAGS="$SLKCFLAGS" \
  CXXFLAGS="$SLKCFLAGS" \
  ../configure \
    --prefix=/usr \
    --libdir=/usr/lib${LIBDIRSUFFIX} \
    --mandir=/usr/man \
    --infodir=/usr/info \
    --with-banner-add=' on Slackware' \
    --disable-native-texlive-build \
    --enable-largefile \
    --enable-shared \
    --disable-static \
    --disable-missing \
    --disable-multiplatform \
    --disable-debug \
    --disable-dialog \
    --disable-xz \
    --with-x \
    --disable-dvisvgm \
    --enable-xindy \
    --disable-xindy-docs \
    --disable-xindy-rules \
    --with-clisp-runtime=system \
    --enable-gc=system \
    --with-system-zlib \
    --with-system-libpng \
    --with-system-t1lib \
    --with-system-gd \
    --with-system-freetype2 \
    --with-system-libgs \
    --with-system-icu \
    --with-system-pixman \
    --with-system-cairo \
    --with-system-gmp \
    --with-system-mpfr \
    --with-system-fontconfig \
    --with-system-ncurses \
    --with-system-harfbuzz \
    --disable-linked-scripts \
    --build=$ARCH-slackware-linux || exit 1

  make $NUMJOBS || make || exit 1
  make check || exit 1
  make install-strip DESTDIR=$PKG || exit 1

cd ..

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

TEXMFROOT=/usr/share

# Remove all files which are covered by tlnet
rm -rf $PKG$TEXMFROOT $PKG/usr/man $PKG/usr/info

# install the tlnet stuff
mkdir -p $PKG$TEXMFROOT
tar xvf $CWD/texlive-base-$TEXMFVERSION.tar.xz -C $PKG$TEXMFROOT || exit 1
chown -R root:root $PKG
chmod -R u+w,go-w,a+rX-st $PKG
 
# use symlinks/scripts from tlnet
mv $PKG$TEXMFROOT/texmf-dist/linked_scripts/* $PKG/usr/bin
rmdir $PKG$TEXMFROOT/texmf-dist/linked_scripts

# Remove this if it's a dangling symlink:
if file $PKG/usr/bin/texdoctk | grep -wq "broken symbolic link" ; then
  rm -f $PKG/usr/bin/texdoctk
fi

# xindy expects to be executed within $TEXMFROOT/texmf-dist/scripts
ln -sf $TEXMFROOT/texmf-dist/scripts/xindy/xindy.pl $PKG/usr/bin/xindy
 
# set some paths
sed -i \
  -e "s|^TEXMFROOT.*|TEXMFROOT = $TEXMFROOT|" \
  -e "s|^TEXMFLOCAL.*|TEXMFLOCAL = \$TEXMFROOT/texmf-local|" \
  -e "s|^OSFONTDIR.*|OSFONTDIR = ~/.fonts:/usr/share/fonts|" \
  $PKG$TEXMFROOT/texmf-dist/web2c/texmf.cnf

# disable obsolete aleph/lamed/cslatex/pdfcslatex
sed -i \
  -e 's|^aleph|#! aleph|' \
  -e 's|^lamed|#! lamed|' \
  -e 's|^cslatex|#! cslatex|' \
  -e 's|^pdfcslatex|#! pdfcslatex|' \
  $PKG$TEXMFROOT/texmf-dist/web2c/fmtutil.cnf

# make ConTeXt work
sed -i \
  -e "s|selfautoparent:|$TEXMFROOT/|g" \
  -e "s|\(TEXMFLOCAL[ ]*=[ ]*\)[^,]*|\1\"$TEXMFROOT/texmf-local\"|" \
  $PKG$TEXMFROOT/texmf-dist/web2c/texmfcnf.lua

# provide texlive fonts optionally for other system apps
mkdir -p $PKG/etc/fonts/conf.avail
cat > $PKG/etc/fonts/conf.avail/09-texlive.conf << EOF
<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
   <dir>$TEXMFROOT/texmf-dist/fonts/opentype</dir>
   <dir>$TEXMFROOT/texmf-dist/fonts/truetype</dir>
</fontconfig>
EOF

# Install the docs while we're still here
mkdir -p $PKG/usr/doc/texlive-$VERSION
cp -a ChangeLog README* $PKG/usr/doc/texlive-$VERSION
# Install index of provided tex packages to the docs
mv $PKG$TEXMFROOT/texmf-dist/packages.base.gz $PKG/usr/doc/texlive-$VERSION

# Put a symlink to $TEXMFROOT/texmf-dist/doc in our Slackware docdir
ln -sf $TEXMFROOT/texmf-dist/doc $PKG/usr/doc/texlive-$VERSION/doc

# We won't make tlmgr easily available; it's still there, but
# we'll make it harder to void the warranty :-)
rm -f $PKG/usr/bin/tlmgr
cat $CWD/README.tlpkg > $PKG/usr/doc/texlive-$VERSION/README.tlpkg

# Create some directories to make it clear that they're owned by this package
mkdir -p $PKG$TEXMFROOT/{texmf-config,texmf-var,texmf-local}

# Add texlive perl modules
mkdir -p $PKG/usr/share/perl5
mv $PKG$TEXMFROOT/texmf-dist/scripts/texlive/TeXLive $PKG/usr/share/perl5/

# Move manual pages to the correct place
mkdir $PKG/usr/man
mv $PKG$TEXMFROOT/texmf-dist/doc/man/man1 $PKG/usr/man
mv $PKG$TEXMFROOT/texmf-dist/doc/man/man5 $PKG/usr/man
rmdir $PKG$TEXMFROOT/texmf-dist/doc/man

# Handle the man pages
find $PKG/usr/man -type f -exec gzip -9 {} +
for i in $(find $PKG/usr/man -type l) ; do ln -s $(readlink $i).gz $i.gz ; rm $i ; done

# Handle the GNU info pages
mv $PKG$TEXMFROOT/texmf-dist/doc/info $PKG/usr
rm -f $PKG/usr/info/dir
gzip -9 $PKG/usr/info/*

mkdir -p $PKG/install
# Don't demand a global lock when running the install script:
echo "# This install script should not collide with any other script's activities," > $PKG/install/doinst.sh
echo "# so don't demand a lock by installpkg: NOLOCK" >> $PKG/install/doinst.sh
zcat $CWD/doinst.sh.gz >> $PKG/install/doinst.sh
cat $CWD/slack-desc > $PKG/install/slack-desc

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