#!/bin/bash

# $Id$

#----------------------------# Prepare BLFS_ROOT and extract
install_blfs_tools() {       # the scriptlets to build
#----------------------------# the dependency tools
set -e
# Install the files
[[ ! -d ${BUILDDIR}${BLFS_ROOT} ]] && mkdir -pv ${BUILDDIR}${BLFS_ROOT}
cp -r BLFS/* ${BUILDDIR}${BLFS_ROOT}
cp -r menu ${BUILDDIR}${BLFS_ROOT}
cp $COMMON_DIR/progress_bar.sh ${BUILDDIR}${BLFS_ROOT}
cp README.BLFS ${BUILDDIR}${BLFS_ROOT}

# Clean-up
make -C ${BUILDDIR}${BLFS_ROOT}/menu clean
rm -rf ${BUILDDIR}${BLFS_ROOT}/libs/.svn
rm -rf ${BUILDDIR}${BLFS_ROOT}/xsl/.svn
rm -rf ${BUILDDIR}${BLFS_ROOT}/menu/.svn
rm -rf ${BUILDDIR}${BLFS_ROOT}/menu/lxdialog/.svn

# Set some harcoded envars to their proper values
sed -i s@tracking-dir@$TRACKING_DIR@ \
    ${BUILDDIR}${BLFS_ROOT}/{Makefile,gen-makefile.sh}
sed -i s@trunk/BOOK@$BLFS_TREE@ \
    ${BUILDDIR}${BLFS_ROOT}/Makefile

# If we have a working copy, copy it:
if [[ "$BLFS_WORKING_COPY" = "y" ]]; then
echo "copying the local BLFS working copy (may take some time)"
# -r: recursive; -u: only if newer; -T: otherwise, would copy to a subdirectory
# of blfs-xml, if blfs-xml already exists; --preserve=timestamps: if the local
# book has already been validated, tmp is posterior to the others, and
# validation will not be done again.
  cp -ruT --preserve=timestamps $BLFS_WC_LOCATION \
                                ${BUILDDIR}${BLFS_ROOT}/blfs-xml
fi
# Downloads the book if necessary, initialize the tracking file and the
# package database.
# sudo is needed if $BUILDDIR/var/lib is owned by root and /var/lib/jhalfs
# has to be created
sudo make -j1 -C $BUILDDIR$BLFS_ROOT TRACKING_DIR=$BUILDDIR$TRACKING_DIR \
    $BUILDDIR$BLFS_ROOT/packages.xml

# Because the BLFS Makefile is supposed to be used in chroot (or booted)
# mode, the tracking file has wrong path for DTD. Change it:
sudo sed -i s@$BUILDDIR@@ $BUILDDIR$TRACKING_DIR/instpkg.xml

# Manually build a 'configuration' file
if [ "$DEP_LIBXML" = y ]; then
  LINE_LIBXML='CONFIG_libxml2=y'
else
  LINE_LIBXML='#CONFIG_libxml2 is not set'
fi
if [ "$DEP_LIBXSLT" = y ]; then
  LINE_LIBXSLT='CONFIG_libxslt=y'
else
  LINE_LIBXSLT='#CONFIG_libxslt is not set'
fi
# DocBook is a rec dep of libxslt
# if [ "$DEP_DBXML" = y ]; then
#   LINE_DBXML='CONFIG_DocBook=y'
# else
#   LINE_DBXML='#CONFIG_DocBook is not set'
# fi
if [ "$DEP_LYNX" = y ]; then
  LINE_LYNX='CONFIG_lynx=y'
else
  LINE_LYNX='#CONFIG_lynx is not set'
fi
if [ "$DEP_SUDO" = y ]; then
  LINE_SUDO='CONFIG_sudo=y'
else
  LINE_SUDO='#CONFIG_sudo is not set'
fi
if [ "$DEP_WGET" = y ]; then
  LINE_WGET='CONFIG_wget=y'
else
  LINE_WGET='#CONFIG_wget is not set'
fi
if [ "$DEP_GPM" = y ]; then
  LINE_GPM='CONFIG_gpm=y'
else
  LINE_GPM='#CONFIG_gpm is not set'
fi
if [ "$DEP_SVN" = y ]; then
  LINE_SVN='CONFIG_subversion=y'
else
  LINE_SVN='#CONFIG_subversion is not set'
fi
if [ "$DEP_OPENSSL" = y ]; then
  LINE_OPENSSL='CONFIG_openssl=y'
else
  LINE_OPENSSL='#CONFIG_openssl is not set'
fi
if [ "$DEP_PYTHON" = y ]; then
  LINE_PYTHON='CONFIG_python2=y'
else
  LINE_PYTHON='#CONFIG_python2 is not set'
fi

cat >$BUILDDIR$BLFS_ROOT/configuration <<EOF
$LINE_OPENSSL
$LINE_PYTHON
$LINE_LIBXML
$LINE_LIBXSLT
$LINE_TIDY
$LINE_WGET
$LINE_SVN
$LINE_GPM
$LINE_LYNX
$LINE_SUDO
MAIL_SERVER=sendmail
optDependency=2
SUDO=n
EOF

# Generates the scripts for the blfs tools dependencies (in ./scripts)
yes "yes" | $BUILDDIR$BLFS_ROOT/gen_pkg_book.sh  $BUILDDIR$BLFS_ROOT

# Move the scriptlets where they should be
sudo rm -rf $BUILDDIR$BLFS_ROOT/scripts
mv scripts $BUILDDIR$BLFS_ROOT

# The  book instructions for CA certificates contains downloading
# instructions, which should not be used here, so:
if test -f $BUILDDIR$BLFS_ROOT/scripts/*cacerts; then
  sed -i '/URL=/,/^wget/d' $BUILDDIR$BLFS_ROOT/scripts/*cacerts
fi

# Generates a list containing download and copying instructions for tarballs
echo -e '#!/bin/bash\nset -e\n' > $BUILDDIR$BLFS_ROOT/download_script
sed -n -e '/PACKAGE=/,/^fi/p' \
       -e '/|[ ]*md5sum/p' \
       -e '/PACKAGE1=/,/^fi/p' \
       -e '/PATCH=/,/^fi/p' \
       -e '/URL=/,/^fi/p' \
    $BUILDDIR$BLFS_ROOT/scripts/* >> $BUILDDIR$BLFS_ROOT/download_script
chmod u+x $BUILDDIR$BLFS_ROOT/download_script

# Downloads (or copy) to build_dir/sources
pushd $BUILDDIR/sources
# Remove `unpacked' files if some have been left
sudo find . -name unpacked -exec rm \{\} \;
FTP_SERVER=$SERVER/pub/blfs/ SRC_ARCHIVE=$SRC_ARCHIVE $BUILDDIR$BLFS_ROOT/download_script
popd
rm -v $BUILDDIR$BLFS_ROOT/download_script

# Suppresses unneeded parts of the scriptlets
if [ "$DEP_LIBXSLT" = y ]; then
  # libxslt pulls docbook-xsl in, which populates the catalog with annoying
  # **EDITME** references. Fortunately, those lines are regognizable because
  # they occur between lines containing '/etc/xml/catalog' at the end of the
  # line (without '&&'). I  have not found a simple way to delete lines
  # between 2 addresses, excluding either the first or the last one. So use
  # a loop for accumulating lines and deleting at the end.
  # Sorry for sed synthax.
  sed -i '\@^[[:space:]]*/etc/xml/catalog$@{
n
:a
\@/etc/xml/catalog$@bb
N
ba
:b
d}' \
      $BUILDDIR$BLFS_ROOT/scripts/*docbook-xsl
fi
if [ "$DEP_SUDO" = y ]; then
  sed -i '/cat.*pam.d/i mkdir -p /etc/pam.d' $BUILDDIR$BLFS_ROOT/scripts/*sudo
fi
if [ "$DEP_SVN" = y ]; then
  sed -i -e /javahl/d -e /swig/d $BUILDDIR$BLFS_ROOT/scripts/*subversion
fi
if [ "$DEP_LYNX" = y ]; then
  if [ "$DEP_OPENSSL" = y -o "$DEP_WGET" = y ]; then
    sed -i -e 's/configure/& --with-ssl/' \
           -e '/make$/i echo "#define USE_OPENSSL_INCL 1" >> lynx_cfg.h &&' \
      $BUILDDIR$BLFS_ROOT/scripts/*lynx
  fi
fi
# At last generates the build Makefile
mkdir -p $BUILDDIR$BLFS_ROOT/work
pushd $BUILDDIR$BLFS_ROOT/work
../gen-makefile.sh
# The generated Makefile updates the tracking file after each package
# installation, using libxslt, which is not installed yet. So move
# updating to the end of the process, adding an 'update' target
sed -i -e '/xsltproc/,+6d' \
       -e '/^all/s@$@ update@' \
       -e 's/touch/@touch/' Makefile
cat >> Makefile << EOF
update:
	@echo Updating the tracking file
	@for file in *-*; do \\
	xsltproc --stringparam packages ../packages.xml \\
	--stringparam package \$\${file##*z-} \\
	-o track.tmp \\
	../xsl/bump.xsl \$(TRACKING_FILE); \\
	sed -i 's@PACKDESC@$BLFS_ROOT/packdesc.dtd@' track.tmp; \\
	xmllint --format --postvalid track.tmp > \$(TRACKING_FILE); \\
	rm track.tmp; \\
	done
	@touch \$@
	@echo -e "\n\n "\$(BOLD)Target \$(BLUE)\$@ \$(BOLD)OK
	@echo --------------------------------------------------------------------------------\$(WHITE)
EOF
popd
}