# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils linux-info

DESCRIPTION="An open-source TCG Software Stack (TSS) v1.1 implementation"
HOMEPAGE="http://trousers.sf.net"
SRC_URI="mirror://sourceforge/trousers/${P}.tar.gz"
LICENSE="CPL-1.0"
SLOT="0"
KEYWORDS="~x86"
IUSE="doc"

RDEPEND="virtual/libc
	>=dev-libs/glib-2
	dev-libs/atk
	x11-libs/pango
	>=x11-libs/gtk+-2
	>=dev-libs/openssl-0.9.7"

DEPEND="${RDEPEND}
	dev-util/pkgconfig"

pkg_setup() {
	# Check for driver (not sure it can be an rdep, because ot depends on the
	# version of virtual/linux-sources... Is that supported by portage?)
	linux-info_pkg_setup
	local tpm_kernel_version tpm_kernel_present tpm_module
	kernel_is ge 2 6 12 && tpm_kernel_version="yes"
	linux_chkconfig_present TCG_TPM && tpm_kernel_present="yes"
	has_version app-crypt/tpm-module && tpm_module="yes"
	if [ -n "${tpm_kernel_present}" ] ; then
		einfo "Good, you seem to have in-kernel TPM support."
	elif [ -n "${tpm_module}" ] ; then
		einfo "Good, you seem to have TPM support with the external module."
		if [ -n "${tpm_kernel_version}" ] ; then
			einfo
			einfo "Note that since you have a >=2.6.12 kernel, you could use"
			einfo "the in-kernel driver instead (CONFIG_TCG_TPM)."
		fi
	elif [ -n "${tpm_kernel_version}" ] ; then
		eerror
		eerror "To use this package, you will have to activate TPM support"
		eerror "in your kernel configuration. That's at least CONFIG_TCG_TPM,"
		eerror "plus probably a chip specific driver (like CONFIG_TCG_ATMEL)."
		eerror
	else
		eerror
		eerror "To use this package, you should install a TPM driver."
		eerror "You can either:"
		eerror "  - install app-crypt/tpm-module"
		eerror "  - switch to a >=2.6.12 kernel"
		eerror
	fi

	# New user/group for the daemon
	enewgroup tss
	enewuser tss -1 /bin/false /var/lib/tpm tss
	# FIXME: old ebuild probably already did it with /var/state.
	# Would this really be too ugly?:
	# sed -i '/^tss\b/s:/var/state/:/var/lib/:' /etc/passwd
}

src_unpack() {
	unpack ${A}
	sed -i -e 's:@localstatedir@/tpm:@localstatedir@/lib/tpm:' \
		"${S}/dist/tcsd.conf.in"
}

src_install() {
	keepdir /var/lib/tpm
	make DESTDIR=${D} install || die
	dodoc AUTHORS ChangeLog NICETOHAVES README TODO
	if use doc ; then
		insinto /usr/share/doc/${PF}
		doins doc/*
	fi
	newinitd "${FILESDIR}/tcsd.initd" tcsd
	newconfd "${FILESDIR}/tcsd.confd" tcsd
}