inherit eutils

DESCRIPTION="CUPS backend to run LPR on a remote machine over SSH"
HOMEPAGE="http://twofoos.org/content/labprinting/"
SRC_URI="http://twofoos.org/content/labprinting/${P}.tar.gz"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="keybasedauth pitt"

DEPEND="net-print/cups
!keybasedauth? ( dev-perl/Expect )
pitt? ( net-print/foomatic-filters-ppds )"

pkg_setup() {
	if use pitt && use keybasedauth; then
		eerror "Pitt printing does not work with key-based authentication."
		eerror "Disable one of the two USE flags and try again."
		die
	fi
}

src_unpack() {
	unpack ${A}

	cd "${S}"
	use keybasedauth && epatch "${S}/keybasedauthentication.patch"
}

src_compile() {
	true
}

src_install() {
	install -D sshlpd ${D}/usr/libexec/cups/backend/sshlpd || die "install failure"
	if use pitt; then
		install -D createpittprinters ${D}/usr/sbin/createpittprinters || die "install failure"
	fi
	dodoc README
}

pkg_postinst() {
	if use pitt; then
		einfo "After first installing sshlpd, you probably want to set up the"
		einfo "various Pitt printers.  To do so most easily, run"
		einfo "/usr/sbin/createpittprinters as root and answer its questions."
		einfo "If you want to perform the setup manually, follow the"
		einfo "instructions at http://twofoos.org/content/labprinting/"
	else
		ewarn "You will probably have to edit /usr/libexec/cups/backend/sshlpd"
		ewarn "to change \$REMOTE_LPR to point to the lpr executable on the"
		ewarn "computer you will be ssh'ing into."
		ewarn "Yes, I should find a better way to handle that."
		ewarn "Sorry for the trouble."
	fi
}