sys-apps/baselayout: Fix merged-usr riscv case

Closes: https://bugs.gentoo.org/796893
Signed-off-by: Andreas K. Hüttel <dilfridge@gentoo.org>

2 files changed, 371 insertions, 1 deletions

diff --git a/sys-apps/baselayout/baselayout-2.9-r1.ebuild b/sys-apps/baselayout/baselayout-2.9-r1.ebuild
new file mode 100644
index 000000000000..198a5ba595b0
--- /dev/null
+++ b/sys-apps/baselayout/baselayout-2.9-r1.ebuild
@@ -0,0 +1,370 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit multilib prefix
+
+DESCRIPTION="Filesystem baselayout and init scripts"
+HOMEPAGE="https://wiki.gentoo.org/wiki/No_homepage"
+if [[ ${PV} = 9999 ]]; then
+	EGIT_REPO_URI="https://anongit.gentoo.org/git/proj/${PN}.git"
+	inherit git-r3
+else
+	SRC_URI="https://gitweb.gentoo.org/proj/${PN}.git/snapshot/${P}.tar.bz2"
+	KEYWORDS="~riscv"
+fi
+
+LICENSE="GPL-2"
+SLOT="0"
+IUSE="build +split-usr"
+
+RDEPEND="!sys-apps/baselayout-prefix"
+
+pkg_setup() {
+	multilib_layout
+}
+
+riscv_compat_symlink() {
+	# Here we apply some special sauce for riscv.
+	# Two multilib layouts exist for now:
+	# 1) one level libdirs, (32bit) "lib" and (64bit) "lib64"
+	#    these are chosen by us to closely resemble other arches
+	# 2) two level libdirs, "lib64/lp64d" "lib64/lp64" "lib32/ilp32d" ...
+	#    this is the glibc/gcc default
+	# Unfortunately, the default has only one fallback, which is "lib"
+	# for both 32bit and 64bit. So things do not break in 1), we need
+	# to provide compatibility symlinks...
+
+	# This function has exactly two parameters:
+	# - the default libdir, to determine if 1) or 2) applies
+	# - the location of the symlink (which points to ".")
+
+	# Note: we call this only in the ${SYMLINK_LIB} = no codepath, since
+	# there never was a ${SYMLINK_LIB} = yes riscv profile.
+
+	case ${CHOST} in
+	riscv*)
+		# are we on a one level libdir profile? is there no symlink yet?
+		if [[ ${1} != */* && ! -L ${2} ]] ; then
+			ln -s . $2 || die "Unable to make $2 riscv compatibility symlink"
+		fi
+		;;
+	esac
+}
+
+# Create our multilib dirs - the Makefile has no knowledge of this
+multilib_layout() {
+	local dir def_libdir libdir libdirs
+	local prefix prefix_lst
+	def_libdir=$(get_abi_LIBDIR $DEFAULT_ABI)
+	libdirs=$(get_all_libdirs)
+
+	if [[ -z "${SYMLINK_LIB}" || ${SYMLINK_LIB} = no ]] ; then
+		prefix_lst=( "${EROOT}"/{,usr/,usr/local/} )
+		for prefix in "${prefix_lst[@]}"; do
+			for libdir in ${libdirs}; do
+				dir="${prefix}${libdir}"
+				if [[ -e "${dir}" ]]; then
+					[[ ! -d "${dir}" ]] &&
+						die "${dir} exists but is not a directory"
+					continue
+				fi
+				if ! use split-usr && [[ ${prefix} = ${EROOT}/ ]]; then
+					libdir="${libdir%%/*}"
+					dir="${prefix}${libdir}"
+					einfo "symlinking ${dir} to usr/${libdir}"
+					ln -s usr/${libdir} ${dir} ||
+						die "Unable to make ${dir} symlink"
+				else
+					einfo "creating directory ${dir}"
+					mkdir -p "${dir}" ||
+						die "Unable to create ${dir} directory"
+				fi
+			done
+			[[ -d "${prefix}${def_libdir}" ]] && riscv_compat_symlink "${def_libdir}" "${prefix}${def_libdir}/${DEFAULT_ABI}"
+		done
+		return 0
+	fi
+
+	[ -z "${def_libdir}" ] &&
+		die "your DEFAULT_ABI=$DEFAULT_ABI appears to be invalid"
+
+	# figure out which paths should be symlinks and which should be directories
+	local dirs syms exp d
+	for libdir in ${libdirs} ; do
+		if use split-usr ; then
+			exp=( {,usr/,usr/local/}${libdir} )
+		else
+			exp=( {usr/,usr/local/}${libdir} )
+		fi
+		for d in "${exp[@]}" ; do
+			# most things should be dirs
+			if [ "${SYMLINK_LIB}" = "yes" ] && [ "${libdir}" = "lib" ] ; then
+				[ ! -h "${d}" ] && [ -e "${d}" ] && dirs+=" ${d}"
+			else
+				[ -h "${d}" ] && syms+=" ${d}"
+			fi
+		done
+	done
+	if [ -n "${syms}${dirs}" ] ; then
+		ewarn "Your system profile has SYMLINK_LIB=${SYMLINK_LIB:-no}, so that means you need to"
+		ewarn "have these paths configured as follows:"
+		[ -n "${dirs}" ] && ewarn "symlinks to '${def_libdir}':${dirs}"
+		[ -n "${syms}" ] && ewarn "directories:${syms}"
+		ewarn "The ebuild will attempt to fix these, but only for trivial conversions."
+		ewarn "If things fail, you will need to manually create/move the directories."
+		echo
+	fi
+
+	# setup symlinks and dirs where we expect them to be; do not migrate
+	# data ... just fall over in that case.
+	if use split-usr ; then
+		prefix_lst=( "${EROOT}"/{,usr/,usr/local/} )
+	else
+		prefix_lst=( "${EROOT}"/{usr/,usr/local/} )
+	fi
+	for prefix in "${prefix_lst[@]}"; do
+		if [ "${SYMLINK_LIB}" = yes ] ; then
+			# we need to make sure "lib" points to the native libdir
+			if [ -h "${prefix}lib" ] ; then
+				# it's already a symlink!  assume it's pointing to right place ...
+				continue
+			elif [ -d "${prefix}lib" ] ; then
+				# "lib" is a dir, so need to convert to a symlink
+				ewarn "Converting ${prefix}lib from a dir to a symlink"
+				rm -f "${prefix}lib"/.keep || die
+				if rmdir "${prefix}lib" 2>/dev/null ; then
+					ln -s ${def_libdir} "${prefix}lib" || die
+				else
+					die "non-empty dir found where we needed a symlink: ${prefix}lib"
+				fi
+			else
+				# nothing exists, so just set it up sanely
+				ewarn "Initializing ${prefix}lib as a symlink"
+				mkdir -p "${prefix}" || die
+				rm -f "${prefix}lib" || die
+				ln -s ${def_libdir} "${prefix}lib" || die
+				mkdir -p "${prefix}${def_libdir}" || die #423571
+			fi
+		else
+			# we need to make sure "lib" is a dir
+			if [ -h "${prefix}lib" ] ; then
+				# "lib" is a symlink, so need to convert to a dir
+				ewarn "Converting ${prefix}lib from a symlink to a dir"
+				rm -f "${prefix}lib" || die
+				if [ -d "${prefix}lib32" ] ; then
+					ewarn "Migrating ${prefix}lib32 to ${prefix}lib"
+					mv "${prefix}lib32" "${prefix}lib" || die
+				else
+					mkdir -p "${prefix}lib" || die
+				fi
+			elif [ -d "${prefix}lib" ] && ! has lib32 ${libdirs} ; then
+				# make sure the old "lib" ABI location does not exist; we
+				# only symlinked the lib dir on systems where we moved it
+				# to "lib32" ...
+				case ${CHOST} in
+				*-gentoo-freebsd*) ;; # We want it the other way on fbsd.
+				i?86*|x86_64*|powerpc*|sparc*|s390*)
+					if [[ -d ${prefix}lib32 && ! -h ${prefix}lib32 ]] ; then
+						rm -f "${prefix}lib32"/.keep || die
+						if ! rmdir "${prefix}lib32" 2>/dev/null ; then
+							ewarn "You need to merge ${prefix}lib32 into ${prefix}lib"
+							die "non-empty dir found where there should be none: ${prefix}lib32"
+						fi
+					fi
+					;;
+				esac
+			else
+				# nothing exists, so just set it up sanely
+				ewarn "Initializing ${prefix}lib as a dir"
+				mkdir -p "${prefix}lib" || die
+			fi
+		fi
+	done
+	if ! use split-usr ; then
+		for libdir in ${libdirs}; do
+			if [[ ! -e "${EROOT}${libdir}" ]]; then
+				ln -s usr/"${libdir}" "${EROOT}${libdir}" ||
+					die "Unable to make ${EROOT}${libdir} symlink"
+			fi
+		done
+	fi
+}
+
+pkg_preinst() {
+	# This is written in src_install (so it's in CONTENTS), but punt all
+	# pending updates to avoid user having to do etc-update (and make the
+	# pkg_postinst logic simpler).
+	rm -f "${EROOT}"/etc/._cfg????_gentoo-release || die
+
+	# We need to install directories and maybe some dev nodes when building
+	# stages, but they cannot be in CONTENTS.
+	# Also, we cannot reference $S as binpkg will break so we do this.
+	multilib_layout
+	if use build ; then
+		if use split-usr ; then
+			emake -C "${ED}/usr/share/${PN}" DESTDIR="${EROOT}" layout
+		else
+			emake -C "${ED}/usr/share/${PN}" DESTDIR="${EROOT}" layout-usrmerge
+		fi
+	fi
+	rm -f "${ED}"/usr/share/${PN}/Makefile || die
+}
+
+src_prepare() {
+	default
+
+	# don't want symlinked directories in PATH on systems with usr-merge
+	if ! use split-usr && ! use prefix-guest; then
+		sed \
+			-e 's|:/usr/sbin:|:|g' \
+			-e 's|:/sbin:|:|g' \
+			-e 's|:/bin:|:|g' \
+			-i etc/env.d/50baselayout || die
+	fi
+
+	if use prefix; then
+		hprefixify -e "/EUID/s,0,${EUID}," -q '"' etc/profile
+		hprefixify etc/shells share.Linux/passwd
+		hprefixify -w '/PATH=/' etc/env.d/50baselayout
+		hprefixify -w 1 etc/env.d/50baselayout
+		echo PATH=/usr/sbin:/sbin:/usr/bin:/bin >> etc/env.d/99host
+
+		# change branding
+		sed -i \
+			-e '/gentoo-release/s/Gentoo Base/Gentoo Prefix Base/' \
+			-e '/make_os_release/s/${OS}/Prefix/' \
+			Makefile || die
+	fi
+
+	# handle multilib paths.  do it here because we want this behavior
+	# regardless of the C library that you're using.  we do explicitly
+	# list paths which the native ldconfig searches, but this isn't
+	# problematic as it doesn't change the resulting ld.so.cache or
+	# take longer to generate.  similarly, listing both the native
+	# path and the symlinked path doesn't change the resulting cache.
+	local libdir ldpaths
+	for libdir in $(get_all_libdirs) ; do
+		if use split-usr || use prefix-guest; then
+			ldpaths+=":${EPREFIX}/${libdir}"
+		fi
+		ldpaths+=":${EPREFIX}/usr/${libdir}"
+		ldpaths+=":${EPREFIX}/usr/local/${libdir}"
+	done
+	echo "LDPATH='${ldpaths#:}'" >> etc/env.d/50baselayout
+}
+
+src_install() {
+	emake \
+		OS=Linux \
+		DESTDIR="${ED}" \
+		install
+
+	if [[ ${CHOST} == *-darwin* ]] ; then
+		# add SDK path which contains development manpages
+		echo "MANPATH=${EPREFIX}/MacOSX.sdk/usr/share/man" \
+			> "${ED}"/etc/env.d/98macos-sdk
+	fi
+
+	# need the makefile in pkg_preinst
+	insinto /usr/share/${PN}
+	doins Makefile
+
+	dodoc ChangeLog
+
+	# bug 858596
+	if use prefix-guest ; then
+		dodir sbin
+		cat > "${ED}"/sbin/runscript <<- EOF
+			#!/usr/bin/env sh
+			source "${EPREFIX}/lib/gentoo/functions.sh"
+
+			eerror "runscript/openrc-run not supported by Gentoo Prefix Base System release ${PV}" 1>&2
+			exit 1
+		EOF
+		chmod 755 "${ED}"/sbin/runscript || die
+		cp "${ED}"/sbin/{runscript,openrc-run} || die
+	fi
+}
+
+pkg_postinst() {
+	local x
+
+	# We installed some files to /usr/share/baselayout instead of /etc to stop
+	# (1) overwriting the user's settings
+	# (2) screwing things up when attempting to merge files
+	# (3) accidentally packaging up personal files with quickpkg
+	# If they don't exist then we install them
+	for x in master.passwd passwd shadow group fstab ; do
+		[ -e "${EROOT}/etc/${x}" ] && continue
+		[ -e "${EROOT}/usr/share/baselayout/${x}" ] || continue
+		cp -p "${EROOT}/usr/share/baselayout/${x}" "${EROOT}"/etc || die
+	done
+
+	# Force shadow permissions to not be world-readable #260993
+	for x in shadow ; do
+		if [ -e "${EROOT}/etc/${x}" ] ; then
+			chmod o-rwx "${EROOT}/etc/${x}" || die
+		fi
+	done
+
+	# Take care of the etc-update for the user
+	if [ -e "${EROOT}"/etc/._cfg0000_gentoo-release ] ; then
+		mv "${EROOT}"/etc/._cfg0000_gentoo-release "${EROOT}"/etc/gentoo-release || die
+	fi
+
+	# whine about users that lack passwords #193541
+	if [[ -e "${EROOT}"/etc/shadow ]] ; then
+		local bad_users=$(sed -n '/^[^:]*::/s|^\([^:]*\)::.*|\1|p' "${EROOT}"/etc/shadow)
+		if [[ -n ${bad_users} ]] ; then
+			echo
+			ewarn "The following users lack passwords!"
+			ewarn ${bad_users}
+		fi
+	fi
+
+	# whine about users with invalid shells #215698
+	if [[ -e "${EROOT}"/etc/passwd ]] ; then
+		local bad_shells=$(awk -F: 'system("test -e ${ROOT}" $7) { print $1 " - " $7}' "${EROOT}"/etc/passwd | sort)
+		if [[ -n ${bad_shells} ]] ; then
+			echo
+			ewarn "The following users have non-existent shells!"
+			ewarn "${bad_shells}"
+		fi
+	fi
+
+	# https://bugs.gentoo.org/361349
+	if use kernel_linux; then
+		mkdir -p "${EROOT}"/run || die
+
+		local found fstype mountpoint
+		while read -r _ mountpoint fstype _; do
+		[[ ${mountpoint} = /run ]] && [[ ${fstype} = tmpfs ]] && found=1
+		done < "${ROOT}"/proc/mounts
+		[[ -z ${found} ]] &&
+			ewarn "You should reboot now to get /run mounted with tmpfs!"
+	fi
+
+	for x in ${REPLACING_VERSIONS}; do
+		if ver_test 2.4 -lt ${x}; then
+			ewarn "After updating ${EROOT}/etc/profile, please run"
+			ewarn "env-update && . /etc/profile"
+		fi
+
+		if ver_test 2.6 -lt ${x}; then
+			ewarn "Please run env-update then log out and back in to"
+			ewarn "update your path."
+		fi
+		# clean up after 2.5 typos
+		# https://bugs.gentoo.org/show_bug.cgi?id=656380
+		if [[ ${x} == 2.5 ]]; then
+			rm -fr "${EROOT}/{,usr" || die
+		fi
+	done
+
+	if [[ -e "${EROOT}"/etc/env.d/00basic ]]; then
+		ewarn "${EROOT}/etc/env.d/00basic is now ${EROOT}/etc/env.d/50baselayout"
+		ewarn "Please migrate your changes."
+	fi
+}
diff --git a/sys-apps/baselayout/baselayout-9999.ebuild b/sys-apps/baselayout/baselayout-9999.ebuild
index 35af87850d7c..a5cb994667ce 100644
--- a/sys-apps/baselayout/baselayout-9999.ebuild
+++ b/sys-apps/baselayout/baselayout-9999.ebuild
@@ -82,7 +82,7 @@ multilib_layout() {
 						die "Unable to create ${dir} directory"
 				fi
 			done
-			riscv_compat_symlink "${def_libdir}" "${prefix}${def_libdir}/${DEFAULT_ABI}"
+			[[ -d "${prefix}${def_libdir}" ]] && riscv_compat_symlink "${def_libdir}" "${prefix}${def_libdir}/${DEFAULT_ABI}"
 		done
 		return 0
 	fi