#! /bin/sh
#
#  prepare
#
#  Author: Pekka Riikonen <priikone@silcnet.org>
#
#  Copyright (C) 2000 - 2001 Pekka Riikonen
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; version 2 of the License.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#

#
# Prepares SILC source tree for configuration and compilation. This is
# done only after checkout from CVS. This is only for developers of SILC
# and will never appear in public distribution. When creating distributions
# this is always run first. After the distribution is created all
# temporary files (including these prepare* scripts) are removed.
#

#
# Usage: ./prepare [<distribution> <base version> <package version>]
#
# If <package version> is omitted <base version> is used as package
# version.  The package version appears in the package name and in those
# distributions that used the SILC_DIST_VERSION_STRING define in the
# code.  The base version is the SILC_VERSION_STRING define.
#

#
# SILC Distribution versions. Set here or give the version on the command
# line as argument.
#
SILC_VERSION=0.8.2			# Base version

#############################################################################

echo "Preparing SILC source tree for configuration and compilation..."

distribution=$1
if test "$distribution" = ""; then
  distribution="toolkit";
fi

version=$2
if test "$version" = ""; then
  version=$SILC_VERSION;
fi

dist_version=$3
if test "$dist_version" = ""; then
  dist_version=$version
fi

echo "Preparing $distribution distribution version $version (package $dist_version)"

#
# Go though the subdirs and create the Makefile.ams from the
# Makefile.am.pre files.
#
subdirs=`grep "$distribution"_SUBDIRS= distributions |cut -d=  -f2`
ed=`grep "$distribution"_EXTRA_DIST= distributions |cut -d=  -f2`
sed -e "/SILC_DISTRIBUTION_SUBDIRS/s//$subdirs/" -e "/SILC_DISTRIBUTION_EXTRA/s,,$ed," Makefile.am.pre >Makefile.am
path=`pwd`
for i in $subdirs
do
  cd $i
  sub=`grep "$distribution"_SUBDIRS_"$i"= $path/distributions |cut -d=  -f2`
  if test "$sub" = ""; then
    cd $path
    continue;
  fi
  if [ -f Makefile.am.pre ]; then
    sed -e "/SILC_DISTRIBUTION_SUBDIRS/s//$sub/" -e "/SILC_DISTRIBUTION_SUBDIRS/s//$sub/" Makefile.am.pre >Makefile.am 2>/dev/null
  fi
  cd $path
done
cd $path


#
# Replace version string, package name and distribution infos, and create 
# the actual configure.in
#
echo "# Automatically generated by ./prepare from configure.in.pre. Do not edit!" >configure.in2
sed -e "/SILC_VERSION/s//$dist_version/" -e "/SILC_PACKAGE/s//silc-"$distribution"/" configure.in.pre >>configure.in2

#
# Create also the acconfig.h for the distribution. Note that this sets
# also dist labels for distributions that are not defined.
#
cp acconfig.h.pre acconfig.h
dists=`grep DISTRIBUTIONS= distributions |cut -d=  -f2`
touch am_cond
for i in $dists
do
  dl=`grep "$i"_DISTLABEL= distributions |cut -d=  -f2`
  echo "#undef $dl" >>acconfig.h
  if test "$i" = "$distribution"; then
    echo "AM_CONDITIONAL($dl, test xtrue = xtrue)" >>am_cond
  else
    echo "AM_CONDITIONAL($dl, test xtrue = xfalse)" >>am_cond
  fi
done

sed '/SILC_DIST_DEFINE/ r am_cond' configure.in2 >configure.in3
dl=`grep "$distribution"_DISTLABEL= distributions |cut -d=  -f2`
sed -e "/SILC_DIST_DEFINE/s//$dl/" configure.in3 >configure.in
rm -f configure.in2 configure.in3 am_cond


#
# Prepare the Makefile.defines
#
cp Makefile.defines.pre Makefile.defines.in
cp Makefile.defines_int.pre Makefile.defines_int.in
cp Makefile.defines.in irssi
cp Makefile.defines_int.in irssi
cp Makefile.defines.in lib/silcmath/mpi
cp Makefile.defines_int.in lib/silcmath/mpi

aclocal
autoconf
autoheader >/dev/null 2>/dev/null
automake

echo "Preparing mpi"
cd lib/silcmath/mpi
aclocal
autoconf
autoheader </dev/null 2>/dev/null
automake >/dev/null 2>/dev/null
cd ../../..

file=includes/version_internal.h
echo "/* Automatically generated by ./prepare */" >$file
echo "#define SILC_VERSION_STRING \"$version\"" >>$file
echo "#define SILC_DIST_VERSION_STRING \"$dist_version\"" >>$file
echo "#define SILC_PROTOCOL_VERSION_STRING \"SILC-1.0-$version\"" >>$file
echo "#define SILC_NAME \"SILC $distribution\"" >>$file

# preparing irssi
echo "Preparing irssi"
cd irssi
sh autogen.sh 2>/dev/null 1>/dev/null
cd ..
file=irssi/irssi-version.h.in
version_date=`date +%Y%m%d`
echo "/* automatically created by autogen.sh */" > $file
echo "#define IRSSI_VERSION \"$dist_version (Irssi base: @VERSION@ - SILC base: SILC Toolkit $version)\"" >>$file
echo "#define IRSSI_VERSION_DATE $version_date" >> $file
echo "#define IRSSI_VERSION_TIME $version_date" >> $file

echo "Done, now run ./configure and make."