# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils flag-o-matic autotools

IUSE="usb ipv6"

DESCRIPTION="Scanner Access Now Easy - Backends"
HOMEPAGE="http://www.sane-project.org/"

BROTHERMFCPATCHVER="1.0.18"
BROTHERMFCDRIVER="sane-${BROTHERMFCPATCHVER}-brother-driver.diff"

SLOT="0"
LICENSE="GPL-2 public-domain"
KEYWORDS="~alpha ~amd64 ~hppa ~ia64 ~ppc ~ppc64 ~sparc ~x86"

BACKENDS_NODEPS="abaton agfafocus apple artec as6e avision bh canon
	canon630u coolscan coolscan2 dc25 dmc
	epson fujitsu genesys gt68xx hp leo lexmark matsushita microtek
	microtek2 mustek mustek_usb nec pie plustek
	plustek_pp ricoh s9036 sceptre sharp
	sp15c st400 tamarack test teco1 teco2 teco3 umax umax_pp umax1220u
	artec_eplus48u ma1509 ibm hp5400 u12 snapscan niash sm3840 hp4200
	sm3600 hp3500 stv680"

# These are not in the main list for some reasons
BACKENDS_NODEPS="${BACKENDS_NODEPS} mustek_usb2 net pnm"
# This is enabled only with +usb actually
BACKENDS_NODEPS="${BACKENDS_NODEPS} brother"
# This should require libjpeg but we always require it
BACKENDS_NODEPS="${BACKENDS_NODEPS} dc210 dc240"

BACKENDS_IEEE1284="canon_pp hpsj5s mustek_pp"
BACKENDS_GPHOTO2="gphoto2"
BACKENDS_LINUX="pint qcam v4l"

BACKENDS_ALL="${BACKENDS_NODEPS} ${BACKENDS_JPEG} ${BACKENDS_IEEE1284}
	${BACKENDS_GPHOTO2} ${BACKENDS_LINUX}"

IEEE1284_DEPS="x86? ( sys-libs/libieee1284 ) amd64? ( sys-libs/libieee1284 )"
GPHOTO2_DEPS="media-libs/libgphoto2"
LINUX_DEPS="virtual/os-headers"
BROTHER_URI="usb? ( mirror://gentoo/${BROTHERMFCDRIVER}.bz2
		http://dev.gentoo.org/~phosphan/${BROTHERMFCDRIVER}.bz2 )"

for backend in ${BACKENDS_ALL}; do
	IUSE="${IUSE} sane_backends_${backend}"
	IEEE1284_DEPS="!sane_backends_${backend}? ( ${IEEE1284_DEPS} )"
	GPHOTO2_DEPS="!sane_backends_${backend}? ( ${GPHOTO2_DEPS} )"
	LINUX_DEPS="!sane_backends_${backend}? ( ${LINUX_DEPS} )"
	BROTHER_URI="!sane_backends_${backend}? ( ${BROTHER_URI} )"
done

for backend in ${BACKENDS_IEEE1284}; do
	IEEE1284_DEPS="${IEEE1284_DEPS} sane_backends_${backend}? ( sys-libs/libieee1284 )"
done

for backend in ${BACKENDS_GPHOTO2}; do
	GPHOTO2_DEPS="${GPHOTO2_DEPS} sane_backends_${backend}? ( media-libs/libgphoto2 )"
done

for backend in ${BACKENDS_LINUX}; do
	LINUX_DEPS="${LINUX_DEPS} sane_backends_${backend}? ( virtual/os-headers )"
done

RDEPEND="${IEEE1284_DEPS}
	${GPHOTO2_DEPS}
	>=media-libs/jpeg-6b
	usb? ( >=dev-libs/libusb-0.1.8 )"

DEPEND="${RDEPEND}
	${LINUX_DEPS}
	>=sys-apps/sed-4"

SRC_URI="ftp://ftp.sane-project.org/pub/sane/${P}/${P}.tar.gz
	ftp://ftp.sane-project.org/pub/sane/old-versions/${P}/${P}.tar.gz
	${BROTHER_URI}
	sane_backends_brother? ( mirror://gentoo/${BROTHERMFCDRIVER}.bz2
		http://dev.gentoo.org/~phosphan/${BROTHERMFCDRIVER}.bz2 )"

pkg_setup() {
	enewgroup scanner
}

src_unpack() {
	if [ -z "${SANE_BACKENDS}" ]; then
		einfo "You can use the variable SANE_BACKENDS to pick backends"
		einfo "instead of building all of them."
	fi
	unpack ${A}

	cd ${S}

	#only generate the .ps and not the fonts
	sed -i -e 's:$(DVIPS) sane.dvi -o sane.ps:$(DVIPS) sane.dvi -M1 -o sane.ps:' \
		doc/Makefile.in

	eautoreconf

	# Simply check if it exists, as it will exist when it's enabled directly or
	# by the bulk
	if [[ -f ${WORKDIR}/${BROTHERMFCDRIVER} ]] ; then
		epatch ${WORKDIR}/${BROTHERMFCDRIVER}
		sed -e 's/bh canon/bh brother canon/' -i configure || \
			die "could not add 'brother' to backend list"
	fi
	epatch ${FILESDIR}/udev-rule.patch
}

src_compile() {
	local myconf

	# Better safe than sorry, it dereferences type-punned pointers
	append-flags -fno-strict-aliasing

	if [[ -n ${SANE_BACKENDS} ]]; then
		einfo "Going to enable the following backends: ${SANE_BACKENDS}"
		myconf="$(use_with sane_backends_gphoto2 gphoto2)"
	else
		myconf="--with-gphoto2"
	fi

	SANEI_JPEG="sanei_jpeg.o" SANEI_JPEG_LO="sanei_jpeg.lo" \
	BACKENDS="${SANE_BACKENDS}" \
	econf \
		$(use_enable usb libusb) \
		$(use_enable ipv6) \
		${myconf} || die "econf failed"

	emake || die

	if use usb; then
		cd tools/hotplug
		grep -v '^$' libsane.usermap > libsane.usermap.new
		mv libsane.usermap.new libsane.usermap
	fi
}

src_install () {
	make INSTALL_LOCKPATH="" DESTDIR="${D}" install \
		docdir=/usr/share/doc/${PF}
	keepdir /var/lib/lock/sane
	fowners root:scanner /var/lib/lock/sane
	fperms g+w /var/lib/lock/sane
	dodir /etc/env.d
	if use usb; then
		cd tools/hotplug
		insinto /etc/hotplug/usb
		exeinto /etc/hotplug/usb
		doins libsane.usermap
		doexe libusbscanner
		newdoc README README.hotplug
		echo >> ${D}/etc/env.d/30sane "USB_DEVFS_PATH=/dev/bus/usb"
		cd ../..
	fi
	cd tools/udev
	dodir /etc/udev/rules.d
	insinto /etc/udev/rules.d
	newins libsane.rules 99-libsane.rules
	cd ../..

	dodoc NEWS AUTHORS LICENSE ChangeLog* README README.linux
	echo "SANE_CONFIG_DIR=/etc/sane.d" >> ${D}/etc/env.d/30sane
}