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# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
DESCRIPTION="Make /etc/resolv.conf a symlink to a runtime-writable location"
HOMEPAGE="https://wiki.gentoo.org/wiki/No_homepage"
SRC_URI=""
S=${WORKDIR}
LICENSE="public-domain"
SLOT="0"
KEYWORDS="~amd64 ~riscv ~x86"
IUSE="+symlink"
pkg_preinst() {
if use symlink; then
if [[ -f ${EROOT}/etc/resolv.conf && ! -L ${EROOT}/etc/resolv.conf ]]
then # migrate existing resolv.conf
if [[ "$(head -n 1 "${EROOT}"/etc/resolv.conf)" \
!= "# Generated by "* ]]; then
eerror "${EROOT}/etc/resolv.conf seems not to be autogenerated."
eerror "Aborting build to avoid removing user data. If that file is supposed"
eerror "to be autogenerated, please remove it manually. Otherwise, please"
eerror "set USE=-symlink to avoid installing resolv.conf symlink."
die "${EROOT}/etc/resolv.conf not autogenerated"
else
ebegin "Moving ${EROOT}/etc/resolv.conf to ${EROOT}/var/run/"
mv "${EROOT}"/etc/resolv.conf "${EROOT}"/var/run/
eend ${?} || die
fi
fi
fi
}
src_install() {
# XXX: /run should be more correct, when it's supported by baselayout
use symlink && dosym ../var/run/resolv.conf /etc/resolv.conf
}
pkg_postrm() {
# Don't leave the user with no resolv.conf
if [[ ! -e ${EROOT}/etc/resolv.conf && -f ${EROOT}/var/run/resolv.conf ]]
then
ebegin "Moving ${EROOT}/var/run/resolv.conf to ${EROOT}/etc/"
mv "${EROOT}"/var/run/resolv.conf "${EROOT}"/etc/
eend ${?} || die
fi
}
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