#! /bin/bash
# definiamo alcune variabili contenenti la directory corrente e quella temporanea di lavoro:
function cambia_link() {
    DIR_PREC=`pwd`
    cd $1
    LISTA_LINK=`find . -type l`
    for LINK in $LISTA_LINK 
    do
	LINK_NAME=`ls -l $LINK | awk '1 { print $8}'`
	TARGET=`ls -l $LINK | awk '1 { print $10}'`
	if [ -f $TARGET.gz ]; then
	    rm  $LINK_NAME
	    ln -s $TARGET.gz $LINK_NAME.gz
	fi
    done
    cd $DIR_PREC
}

CWD=`pwd`
if ["$TMP" = ""]; then
TMP=/tmp
fi
PKG=$TMP/strongswan
PKGslash=$(echo $PKG | sed 's/\//\\\//g')
# Settiamo qualche altra variabile per velocizzare il lavoro:
NAME=strongswan
VERSION=2.8.4
ARCH=i486
BUILD=1ld
if [ ! -d $TMP ]; then
mkdir -p $TMP # posizione dove creiamo il sorgente
fi
if [ ! -d $PKG ]; then
mkdir -p $PKG # posizione dove creiamo il package
fi
echo "+------------------+"
echo "| $NAME-$VERSION |"
echo "+------------------+"
cd $TMP
# scompattiamo il sorgente
tar jxf $CWD/$NAME-$VERSION.tar.bz2
# ci portiamo all'interno della directory appena scompattata
cd $NAME-$VERSION
# Imposto alcune variabili nel file Makefile.inc
sed -i -e 's/^DESTDIR?=/DESTDIR?='"$PKGslash"'/g' Makefile.inc
sed -i -e 's/^INC_USRLOCAL=\/usr\/local/INC_USRLOCAL=\/usr/g' Makefile.inc
sed -i -e 's/^USE_IKEPING?=false/USE_IKEPING?=true/g' Makefile.inc
sed -i -e 's/^USE_XAUTH_VID?=false/USE_XAUTH_VID?=true/g' Makefile.inc
sed -i -e 's/^USE_NAT_TRAVERSAL_TRANSPORT_MODE?=false/USE_NAT_TRAVERSAL_TRANSPORT_MODE?=true/g' Makefile.inc
sed -i -e 's/^USE_LIBCURL?=false/USE_LIBCURL?=true/g' Makefile.inc
sed -i -e 's/^USE_LDAP?=false/USE_LDAP?=true/g' Makefile.inc
# compiliamo
make programs
# passiamo a make , con il parametro DESTDIR la dir dove creiamo il package
mkdir -p $PKG/etc/rc.d ## creo rc.d per non avere problemi nel make install
make DESTDIR=$PKG install
# strippiamo gli eseguibili e le librerie
strip $PKG/usr/sbin/*
#strip --strip-unneeded $PKG/usr/lib/*.so.*
# rinominiamo e spostiamo la cartella doc standard, nel caso venga creata in un path non corretto
mv -f $PKG/usr/share/doc $PKG/usr/
mv $PKG/usr/doc/strongswan $PKG/usr/doc/$NAME-$VERSION
# copiamo i file con informazioni da conservare della dir doc
cp -a -r CHANGES COPYING CREDITS INSTALL LICENSE README testing \
$PKG/usr/doc/$NAME-$VERSION
# gzippiamo le man pages
gzip $PKG/usr/man/man3/*
gzip $PKG/usr/man/man5/*
gzip $PKG/usr/man/man8/*
# e rinominiamo i link
cambia_link $PKG/usr/man/man3
cambia_link $PKG/usr/man/man5
cambia_link $PKG/usr/man/man8
# Rinomino i file di configurazione in .new
mv $PKG/etc/ipsec.d/examples/oe.conf $PKG/etc/ipsec.d/examples/oe.conf.new
mv $PKG/etc/ipsec.d/policies/block $PKG/etc/ipsec.d/policies/block.new
mv $PKG/etc/ipsec.d/policies/clear $PKG/etc/ipsec.d/policies/clear.new
mv $PKG/etc/ipsec.d/policies/clear-or-private $PKG/etc/ipsec.d/policies/clear-or-private.new
mv $PKG/etc/ipsec.d/policies/private $PKG/etc/ipsec.d/policies/private.new
mv $PKG/etc/ipsec.d/policies/private-or-clear $PKG/etc/ipsec.d/policies/private-or-clear.new
mv $PKG/etc/rc.d/ipsec $PKG/etc/rc.d/rc.ipsec.new
mv $PKG/etc/ipsec.conf $PKG/etc/ipsec.conf.new
touch $PKG/etc/ipsec.secrets.new
rmdir $PKG/usr/share
mkdir -p $PKG/install
# impostiamo i permessi
chown -R root:root $PKG
chmod -R 644 $PKG/usr/doc/$NAME-$VERSION/*
chmod -R 644 $PKG/etc/*
chmod -R 744 $PKG/etc/rc.d/*
chmod 600 $PKG/etc/ipsec.secrets.new
# permetto di accedere alle directory in doc
PERM_DOC=`find $PKG/usr/doc/$NAME-$VERSION/ -type d`
for dir in $PERM_DOC
do
    chmod +x $dir
done
# copiamo slack-desc in install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh
cat $CWD/slack-desc > $PKG/usr/doc/$NAME-$VERSION/slack-desc
cat $CWD/$NAME.SlackBuild > $PKG/usr/doc/$NAME-$VERSION/$NAME.SlackBuild
cd $PKG
# Creiamo il pacchetto con makepkg
requiredbuilder -v -y -s $CWD $PKG
makepkg -l y -c n $CWD/$NAME-$VERSION-$ARCH-$BUILD.tgz
# eliminiamo le dir di lavoro qualora avessimo eseguito lo SlackBuild con l'opzione --cleanup
if [ "$1" = "--cleanup" ]; then
rm -rf $TMP/$NAME-$VERSION
rm -rf $PKG
fi