# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-fs/coda/coda-6.0.15.ebuild,v 1.9 2007/07/12 05:38:40 mr_bones_ Exp $

inherit autotools eutils toolchain-funcs

IUSE="coda-client coda-server coda-fs-layout kerberos"
# coda-client causes the coda client (venus) to be built.
# coda-server causes the coda server (vice) to be built.
# coda-fs-layout doesn't apply gentoo directory layout patchs. Use this if
#  using any directory other than /coda for the mount point makes you upset.

DESCRIPTION="Coda is an advanced networked filesystem developed at Carnegie Mellon Univ."
HOMEPAGE="http://www.coda.cs.cmu.edu/"
SRC_URI="http://www.coda.cs.cmu.edu/pub/coda/src/${P}.tar.gz"

SLOT="0"
LICENSE="GPL-2"
KEYWORDS="~amd64 ~ppc ~x86"

# partly based on the deps suggested by Mandrake's RPM, and/or on my current versions
# Also, definely needs coda.h from linux-headers.
RDEPEND=">=sys-libs/lwp-2.1
	>=net-libs/rpc2-2.6
	>=sys-libs/rvm-1.15
	>=sys-libs/db-3
	>=sys-libs/ncurses-4
	>=sys-libs/readline-3
	>=dev-lang/perl-5.8
	kerberos? ( virtual/krb5 )"

DEPEND="${RDEPEND}
	sys-apps/gawk
	sys-devel/bison
	sys-apps/grep
	virtual/os-headers"

pkg_setup() {
	echo
	einfo "gcc-version = $(gcc-version)"
	echo

	if [[ "$(gcc-version)" > "4.3" ]]; then
		ewarn
		eerror "coda needs gcc < 4.4 to build cleanly"
		ewarn
		die "coda needs gcc < 4.4 to build cleanly"
	fi
}

src_unpack() {
	unpack ${A}
	cd "${S}"
	epatch "${FILESDIR}/${PN}-6.9.3-fixdeps.patch"
	epatch "${FILESDIR}/${PN}-6.9.3-gentoo-init.patch"
	use coda-fs-layout || epatch "${FILESDIR}/${PN}-6.9.3-gentoo-dirs.patch"

	eautoreconf
}

my_build_venus_prereqs() {
	# Coda uses a recursive make with some directories dependant
	# on objects build in other directories, so run make inside
	# the prerequisite dirs first. This builds everything required
	# by venus in the order listed in coda-src/Makefile.am.

	cd "${S}/lib-src"
	emake || die "emake failed"

	# auth2 depends on kerndep
	cd "${S}/coda-src/kerndep"
	emake || die "emake failed"

	# auth2 depends on util.
	cd "${S}/coda-src/util"
	emake || die "emake failed"

	# librepair depends on vicedep
	cd "${S}/coda-src/vicedep"
	emake || die "emake failed"

	# venus depends on dir
	cd "${S}/coda-src/dir"
	emake || die "emake failed"

	# venus depends on al
	cd "${S}/coda-src/al"
	emake || die "emake failed"

	# librepair depends on auth2
	cd "${S}/coda-src/auth2"
	emake || die "emake failed"

	# venus depends on vv
	cd "${S}/coda-src/vv"
	emake || die "emake failed"

	# venus depends on lka
	cd "${S}/coda-src/lka"
	emake || die "emake failed"

	# venus depends on vol
	cd "${S}/coda-src/vol"
	emake || die "emake failed"

	# venus depends on librepair
	cd "${S}/coda-src/librepair"
	emake || die "emake failed"
}

src_compile() {
	local myflags=""

	# Coda uses type punning in a way that violates assumptions made by -O2
	# and friends (via -fstrict-aliasing). Disable this optimization where
	# required.
	local my_safe_cflags="${CFLAGS} -fno-strict-aliasing"
	local my_safe_cxxflags="${CXXFLAGS} -fno-strict-aliasing"

	# Include the server/client code.
	if ! use coda-client && ! use coda-server; then
		ewarn "Neither coda-client nor coda-server is enabled."
		ewarn "Enabling coda-client."
		myflags="${myflags} --enable-client"
	else
		use coda-client && myflags="${myflags} --enable-client"
		use coda-server && myflags="${myflags} --enable-server"
	fi

	# Enable kerboeros?
	if use kerberos; then
		myflags="${myflags} --with-crypto"
		myflags="${myflags} --with-krb5"
		myflags="${myflags} --with-krb5-includes=/usr/include/krb5"
		myflags="${myflags} --with-krb5-libs=/usr/lib"
	fi

	# Perform the actual configure.
	cd "${S}"
	econf ${myflags} || die "configure failed"

	# Build any prerequisites for venus.
	my_build_venus_prereqs

	# Venus uses unsafe type punning, so disable
	# some optimizations for venus.
	cd "${S}/coda-src/venus"
	emake \
		CFLAGS="${my_safe_cflags}" \
		CXXFLAGS="${my_safe_cxxflags}" \
		|| die "emake failed"
	
	# Now run make in the source directory to finish the compile.
	cd "${S}"
	emake -j1 || die "emake failed"
}

src_install () {
	#these crazy makefiles dont seem to use DESTDIR, but they do use these...
	# (except infodir, but no harm in leaving it there)
	# see Makeconf.setup in the package

	#Also note that for Coda, we need to do "make client-install" for
	# the client, and "make server-install" for the server.
	#...you can find out about this from ./configs/Makerules
	emake DESTDIR="${D}" install || die "Install failed" 

	dodoc INSTALL* README* ChangeLog CREDITS

	doinitd ${FILESDIR}/${PV}/venus
	doinitd ${FILESDIR}/coda-update
	doinitd ${FILESDIR}/codasrv
	doinitd ${FILESDIR}/auth2

	# We may use a conf.d/coda file at some point ?
#	insinto /etc/conf.d
#	newins ${FILESDIR}/coda.conf.d coda

	# Modify coda to conform to gentoo filesystem layout.
#	TODO

	# Fix conflict with backup.sh from tar
	mv -f ${D}/usr/sbin/backup{,-coda}.sh

	if use coda-fs-layout; then
		# Add coda specific directories, the way coda intended.
		dodir /usr/coda
		dodir /usr/coda/etc
		dodir /usr/coda/spool
		dodir /coda
		dodir /vice
		dodir /vicepa

		diropts -m0700
		dodir /usr/coda/venus.cache
	else
		# Add gentoo specific directorys.
		dodir /var/lib/coda
		dodir /var/log/coda
		dodir /var/spool/coda

		dodir /var/lib/coda/vice
		dodir /usr/lib/coda/vicepa

		dodir /media/coda

		diropts -m0700
		dodir /var/cache/venus

		# Symlink traditional coda dirs to gentoo dirs.
		dosym ../var/lib/coda /usr/coda
		dosym var/lib/coda/vice /vice
		dosym var/lib/coda/vicepa /vicepa
		dosym media/coda /coda
	fi
}

pkg_preinst () {
	enewgroup codaroot
	enewuser codaroot -1 -1 -1 codaroot
}

pkg_postinst () {
	elog
	elog "To enable the coda server at boot up, please do:"
	elog "    rc-update add auth2 default"
	elog "    rc-update add updatecoda default"
	elog "    rc-update add codasrv default"
	elog
	elog "To enable the coda client at boot up, do:"
	elog "    rc-update add venus default"
	elog
	elog "To get started, run vice-setup and/or venus-setup."
}