#!/bin/sh

# Copyright 2011, 2012, 2015, 2016  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.

# Adapted for Slint - Didier Spaier <didier~at~slint~dot~fr>

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

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

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

CWD=$(pwd)
TMP=${TMP:-$PWD}
PKG=$TMP/package-$PKGNAM

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

cd $TMP
rm -rf $PKGNAM-$VERSION
tar xvf $CWD/$PKGNAM-$VERSION.tar.?z* || exit 1
cd $PKGNAM-$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 {} \;

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --mandir=/usr/man \
  --enable-htmldoc \
  --docdir=/usr/doc/$PKGNAM-$VERSION \
  --program-prefix= \
  --program-suffix= \
  --build=$ARCH-slackware-linux || exit 1

make $NUMJOBS || make || exit 1
make install DESTDIR=$PKG || exit 1

# Add some ancient icons  .  The fvwm95 sample config still uses these.
( cd $PKG ; tar xzf $CWD/ancient-icons.tar.gz )

# This script is called from the xinitrc:
mkdir -p $PKG/usr/bin
cp $CWD/startfvwm2 $PKG/usr/bin
chmod 755 $PKG/usr/bin/startfvwm2

# Add a few more things:
mkdir -p $PKG/etc/X11/xinit
cp $CWD/xinitrc.fvwm2 $PKG/etc/X11/xinit
chmod 755 $PKG/etc/X11/xinit/xinitrc.fvwm2

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

# Compress and link manpages, if any:
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1) ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi


# Install some documentation:
mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a  COPYING* NEWS $PKG/usr/doc/$PKGNAM-$VERSION

# Move the html doc into place, as the htmldir configure option is not
# honored (will be in version 2.6.9). Some edit is done in the source
# files to avoid dead links and provide current useful documentation.
# Acces to all the documentation is provided through this command:
# <browser> /usr/doc/$PKGNAM-$VERSION/index.html
mv $PKG/usr/share/doc/fvwm/* $PKG/usr/doc/$PKGNAM-$VERSION
rm -r $PKG/usr/share/doc
(  cd $PKG/usr/doc/$PKGNAM-$VERSION
   for i in $(find -name "*.html"); do
     sed -i "s,faq.html,faq/,;s,links.php,links/,;/.php/d" $i
   done
   sed -i "s,>Modules<,>List of all modules<,;s,>FAQ<,>FAQ (on line)<," commands/*.html
   # Remove the links to non existing files, but highligt the module
   # names as if they were options, to not modify style.css
   sed -i 's@<a href="../modules/[^"]*">\([^<]*\)</a>@<font class="fvwmopt">\1</font>@g' commands/*.html
   # Provide edited files to avoid broken links and insure the
   # documentation correspond to what is actually installed
   rm -f *.html fvwm/*.html
   cp -a $CWD/htmlpages/* .
)

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

mkdir -p $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 $TMP/$PKGNAM-$VERSION-$ARCH-$BUILD.txz