# $Id$
# function for packing and installing a tree. We only have access
# to variables PKGDIR and PKG_DEST
# Other variables can be passed on the command line, or in the environment

packInstall() {

# A proposed implementation for versions and package names.
local PCKGVRS=$(basename $PKGDIR)
local TGTPKG=$(basename $PKG_DEST)
local PACKAGE=$(echo ${TGTPKG} | sed 's/^[0-9]\{3\}-//' |
           sed 's/^[0-9]\{1\}-//')
# version is only accessible from PKGDIR name. Since the format of the
# name is not normalized, several hacks are necessary...
case $PCKGVRS in
  expect*|tcl*) local VERSION=$(echo $PCKGVRS | sed 's/^[^0-9]*//') ;;
  unzip*) local VERSION=$(echo $PCKGVRS | sed 's/^[^0-9]*\([0-9]\)\([0-9]\)/\1.\2/') ;;
  docbook-xml) local VERSION=4.5 ;;
  *) local VERSION=$(echo ${PCKGVRS} | sed 's/^.*[-_]\([0-9]\)/\1/' |
                   sed 's/_/./g');;
# the last sed above is because some package managers do not want a '_'
# in version.
esac
case $(uname -m) in
  x86_64) local ARCH=x86_64 ;;
  *) local ARCH=i686 ;;
esac
local ARCHIVE_NAME=${PACKAGE}-${VERSION}-1-${ARCH}.pkg.tar.gz

pushd $PKG_DEST
rm -fv ./usr/share/info/dir  # recommended since this directory is already there
                             # on the system
# Right now, we have the files in the current directory. They should be moved
# to /sources/$PACKAGE/src.
mkdir -p ../$PACKAGE/src
mv * ../$PACKAGE/src

cat > PKGBUILD <<EOF
pkgname=( '$PACKAGE' )
pkgver=$VERSION
pkgrel=1
pkgdesc=$PACKAGE
arch=( '$ARCH' )

package() {
mv * \$pkgdir
}
EOF
# Building the binary package
makepkg --asroot -c --skipinteg
# Installing it on LFS
if ! pacman -U --noconfirm $ARCHIVE_NAME; then
     pacman -U --noconfirm --force $ARCHIVE_NAME
fi
popd                         # Since the $PKG_DEST directory is destroyed
                             # immediately after the return of the function,
                             # getting back to $PKGDIR is important...
}