# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: $

DESCRIPTION="IBM iSeries Access for Linux provides 5250 emulation and ODBC connectivity. Formerly called IBM Client Access."
HOMEPAGE="http://www-1.ibm.com/servers/eserver/iseries/access/linux/"

# Note on IBM version numbering:
# This ebuild is versioned 5.2.0.1.3, while IBM versioned 5.2.0-1.3.
# This translates into the following:
#   5.2.0 = Version.Release.Modification of associated OS/400.
#   1.3 = Version of iSeries Access for Linux.
#
# This version numbering overcomes Portage's inability to recognize
# iseriesaccess-5.2.0-1.3.ebuild.
MY_P="5.2.0-1.3"

# You must register with IBM to download this software; it is not available
# through public servers.
SRC_URI=""

# Determine architecture conversion for RPM file name.
if [ "${ARCH}"=="x86" ] || [ "${ARCH}"=="~x86" ] ; then
	MY_ARCH=i386
elif [ "${ARCH}"=="ppc" ] || [ "${ARCH}"=="~ppc" ] ; then
	MY_ARCH=ppc
else
	MY_ARCH="" # Could this happen or does emerge prevent?
fi

MY_A=iSeriesAccess-${MY_P}.${MY_ARCH}.rpm
MY_AA=iSeriesAccess-${MY_P}.${MY_ARCH}.tar.gz

MY_EVERINST=`has_version net-misc/iseriesaccess`

# IBM eServer iSeries Access for Linux (5722-XL1) is a licensed program.
# The 5250 Display Emulation component requires an IBM iSeries Access Family
# (5722-XW1) license before you can use it. 
#
# For more information about iSeries Access Family license requirements, refer
# to the IBM International Program License Agreement included with the iSeries
# Access Family (5722-XW1). 
LICENSE=""

SLOT="0"
KEYWORDS="-* ~x86 ~ppc"
IUSE="X"
DEPEND=">=dev-db/unixODBC-2.0.11
	>=x11-libs/openmotif-2.0
	app-arch/rpm2targz
	>=sys-libs/glibc-2.2"

# We only need rpm2targz to extract the program files from the RPM.
# unixODBC is not needed for the 5250 emulator to function but is required
# for file transfer.
RDEPEND=">=x11-libs/openmotif-2.0
	>=sys-libs/glibc-2.2"
RESTRICT="nostrip"

pkg_nofetch() {
	echo "Please download ${MY_A} from ${HOMEPAGE} to ${DISTDIR}"
}

pkg_setup() {
	if [ ! -f ${DISTDIR}/${MY_A} ] ; then
		die "Please download ${MY_A} from ${HOMEPAGE} to ${DISTDIR}"
	else
		if [ ! -f ${T}/${MY_AA} ] ; then
			if [ -f ${PORTAGE_TMPDIR}/portage/${MY_AA} ] ; then
				rm ${PORTAGE_TMPDIR}/portage/${MY_AA}
			fi
			echo ">>> Converting ${MY_A} to tar.gz format"
			rpm2targz ${DISTDIR}/${MY_A}
			mv ${PORTAGE_TMPDIR}/portage/${MY_AA} ${T}/.
		fi
	fi
}

src_unpack() {
	if [ ! -f ${T}/${MY_AA} ] ; then
		die "${T}/${MY_AA} not found. Aieee!"
	fi
	# Circumventing unpack because portage won't let me move the .tar.gz
	# file back into $DISTDIR. (access violation)
	echo ">>> Unpacking ${MY_AA} to ${WORKDIR}"
	tar --no-same-owner -zxf ${T}/${MY_AA} || \
		die "Problem unpacking ${MY_AA}. Aieee!"
}

src_install() {
	dodir /
	cp -a ${WORKDIR}/opt ${D}/

	dodir /usr/lib
	dosym /opt/ibm/iSeriesAccess/lib/libcwbcore.so \
		/usr/lib/libcwbcore.so
	dosym /opt/ibm/iSeriesAccess/lib/libcwbrc.so \
		/usr/lib/libcwbrc.so

	dodir /usr/bin
	dosym /opt/ibm/iSeriesAccess/bin/ibm5250 \
		/usr/bin/ibm5250
	dosym /opt/ibm/iSeriesAccess/bin/setup5250 \
		/usr/bin/setup5250

	dosym /opt/ibm/iSeriesAccess/mri/en \
		/opt/ibm/iSeriesAccess/mri/en_US

	dodoc /opt/ibm/iSeriesAccess/doc/*
	dohtml /opt/ibm/iSeriesAccess/doc/*
}

pkg_postinst() {
	# Register ODBC drivers with unixODBC on first-time installation.
	if [ MY_EVERINST==1 ] ; then	# Never before installed
		echo ">>> Registering ODBC driver with unixODBC."
		einfo
		einfo "To do this again, run \"odbcinst -i -d -f /opt/ibm/iSeriesAccess/unixodbcregistration\""
		einfo

		if [ -e "/usr/local/bin/odbcinst" ] ; then
			/usr/local/bin/odbcinst -i -d -f /opt/ibm/iSeriesAccess/unixodbcregistration
		elif [ -e "/usr/bin/odbcinst" ] ; then
			/usr/bin/odbcinst -i -d -f /opt/ibm/iSeriesAccess/unixodbcregistration
		else
			odbcinst -i -d -f /opt/ibm/iSeriesAccess/unixodbcregistration
		fi
	fi
}

pkg_prerm() {
	# Unregister ODBC drivers.
	# !!! When the build is updated or re-emerged, the ODBC driver will
	#     remove itself, then install itself. Not sure if it's a bug yet.
	#     On upgrade:
	#     * merge upgraded files
	#     * call pkg_prerm
	#     * unmerge upgraded files
	#     * call pkg_postinst (has_version==1??)
	echo ">>> Unregistering ODBC driver with unixODBC."
	if [ -e "/usr/local/bin/odbcinst" ] ; then
		/usr/local/bin/odbcinst -u -d -n "iSeries Access ODBC Driver"
	elif [ -e "/usr/bin/odbcinst" ] ; then
		/usr/bin/odbcinst -u -d -n "iSeries Access ODBC Driver"
	else
		odbcinst -u -d -n "iSeries Access ODBC Driver"
	fi
}