app-portage/prefix-chain-setup: utilize (unmask+set) implicit iuse prefix-chain

Package-Manager: portage-2.3.3

1 files changed, 239 insertions, 0 deletions

diff --git a/app-portage/prefix-chain-setup/prefix-chain-setup-0.7.ebuild b/app-portage/prefix-chain-setup/prefix-chain-setup-0.7.ebuild
new file mode 100644
index 000000000000..9014d40f08ca
--- /dev/null
+++ b/app-portage/prefix-chain-setup/prefix-chain-setup-0.7.ebuild
@@ -0,0 +1,239 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit prefix
+
+DESCRIPTION="Chained EPREFIX bootstrapping utility"
+HOMEPAGE="https://prefix.gentoo.org/"
+SRC_URI=""
+
+LICENSE="GPL-3"
+SLOT="0"
+KEYWORDS="~ppc-aix ~x64-cygwin ~x86-linux ~sparc-solaris ~x86-solaris"
+IUSE=""
+
+DEPEND=""
+RDEPEND=""
+
+S="${WORKDIR}"
+
+src_install() {
+	eprefixify ${PN}
+	sed -e "s,@GENTOO_PORTAGE_CHOST@,${CHOST}," -i ${PN}
+	dobin ${PN}
+}
+
+src_unpack() {
+	{ cat > "${PN}" || die; } <<'EOF'
+#!/usr/bin/env bash
+
+PARENT_EPREFIX="@GENTOO_PORTAGE_EPREFIX@"
+PARENT_CHOST="@GENTOO_PORTAGE_CHOST@"
+CHILD_EPREFIX=
+CHILD_PROFILE=
+DO_MINIMAL=no
+DO_SOURCES=no
+PORT_TMPDIR=
+
+#
+# get ourselfs the functions.sh script for ebegin/eend/etc.
+#
+for f in \
+	/lib/gentoo/functions.sh \
+	/etc/init.d/functions.sh \
+	/sbin/functions.sh \
+; do
+	if [[ -r ${PARENT_EPREFIX}${f} ]]; then
+		. "${PARENT_EPREFIX}${f}"
+		f=found
+		break
+	fi
+done
+
+if [[ ${f} != found ]]; then
+	echo "Cannot find Gentoo functions, aborting." >&2
+	exit 1
+fi
+
+for arg in "$@"; do
+	case "${arg}" in
+	--eprefix=*)	CHILD_EPREFIX="${arg#--eprefix=}"	;;
+	--profile=*)	CHILD_PROFILE="${arg#--profile=}"	;;
+	--sources)		DO_SOURCES=yes						;;
+	--portage-tmpdir=*)	PORT_TMPDIR="${arg#--portage-tmpdir=}" ;;
+
+	--help)
+		einfo "$0 usage:"
+		einfo "  --eprefix=[PATH]       Path to new EPREFIX to create chained to the prefix"
+		einfo "                         where this script is installed (${PARENT_EPREFIX})"
+		einfo "  --profile=[PATH]       The absolute path to the profile to use. This path"
+		einfo "                         must point to a directory within ${PARENT_EPREFIX}"
+		einfo "  --sources              inherit 'source' statements from the parent make.conf"
+		einfo "  --portage-tmpdir=DIR   use DIR as portage temporary directory."
+		exit 0
+		;;
+	esac
+done
+
+#
+# sanity check of given values
+#
+
+test -n "${CHILD_EPREFIX}" || { eerror "no eprefix argument given"; exit 1; }
+test -d "${CHILD_EPREFIX}" && { eerror "${CHILD_EPREFIX} already exists"; exit 1; }
+test -n "${CHILD_PROFILE}" || { eerror "no profile argument given"; exit 1; }
+test -d "${CHILD_PROFILE}" || { eerror "${CHILD_PROFILE} does not exist"; exit 1; }
+if test -n "${PORT_TMPDIR}"; then
+	if ! test -d "${PORT_TMPDIR}"; then
+		einfo "creating temporary directory ${PORT_TMPDIR}"
+		mkdir -p "${PORT_TMPDIR}"
+	fi
+fi
+
+einfo "creating chained prefix ${CHILD_EPREFIX}"
+
+#
+# functions needed below.
+#
+eend_exit() {
+	eend $1
+	[[ $1 != 0 ]] && exit 1
+}
+
+#
+# create the directories required to bootstrap the least.
+#
+ebegin "creating directory structure"
+(
+	set -e
+	mkdir -p "${CHILD_EPREFIX}"/etc/portage
+	mkdir -p "${CHILD_EPREFIX}"/etc/portage/use.mask
+	mkdir -p "${CHILD_EPREFIX}"/etc/portage/use.force
+	mkdir -p "${CHILD_EPREFIX}"/var/log
+)
+eend_exit $?
+
+#
+# create a make.conf and set PORTDIR and PORTAGE_TMPDIR
+#
+ebegin "creating make.conf"
+(
+	set -e
+	echo "#"
+	echo "# The following values where taken from the parent prefix's"
+	echo "# environment. Feel free to adopt them as you like."
+	echo "#"
+	echo "CFLAGS=\"$(portageq envvar CFLAGS)\""
+	echo "CXXFLAGS=\"$(portageq envvar CXXFLAGS)\""
+	echo "MAKEOPTS=\"$(portageq envvar MAKEOPTS)\""
+	niceness=$(portageq envvar PORTAGE_NICENESS || true)
+	[[ -n ${niceness} ]] &&
+		echo "PORTAGE_NICENESS=\"${niceness}\""
+	echo "USE=\"prefix-chain\""
+	echo
+	echo "# Mirrors from parent prefix."
+	echo "GENTOO_MIRRORS=\"$(portageq envvar GENTOO_MIRRORS || true)\""
+	echo
+	echo "#"
+	echo "# Below comes the chained-prefix setup. Only change things"
+	echo "# if you know exactly what you are doing!"
+	echo "# by default, only DEPEND is inherited from the parent in"
+	echo "# the chain. if you want more, make it a comma seperated"
+	echo "# list - like this: DEPEND,RDEPEND,PDEPEN - which would the"
+	echo "# all that is possible"
+	echo "#"
+	echo "PORTDIR=\"$(portageq envvar PORTDIR)\""
+	echo "SYNC=\"$(portageq envvar SYNC || true)\""
+	if test -z "${PORT_TMPDIR}"; then
+		case "${CHILD_PROFILE}" in
+		*winnt*)	echo "PORTAGE_TMPDIR=/var/tmp" ;;
+		*)			echo "PORTAGE_TMPDIR=\"${CHILD_EPREFIX}/var/tmp\"" ;;
+		esac
+	else
+		echo "PORTAGE_TMPDIR=\"${PORT_TMPDIR}\""
+	fi
+	echo "READONLY_EPREFIX=\"${PARENT_EPREFIX}:DEPEND\""
+
+	if test "${DO_SOURCES}" == "yes"; then
+		# don't fail if nothing found
+		for f in /etc/portage/make.conf /etc/make.conf; do
+			if [[ -r ${PARENT_EPREFIX}${f} ]]; then
+				egrep "^source .*" "${PARENT_EPREFIX}${f}" 2>/dev/null || true
+				break;
+			fi
+		done
+	fi
+) > "${CHILD_EPREFIX}"/etc/portage/make.conf
+eend_exit $?
+
+ebegin "creating use.mask"
+cat > "${CHILD_EPREFIX}"/etc/portage/use.mask/prefix-chain-setup <<'-EOF'
+	# masked in base profile, unmask here
+	-prefix-chain
+EOM
+eend_exit $?
+
+ebegin "creating use.force"
+cat > "${CHILD_EPREFIX}"/etc/portage/use.force/prefix-chain-setup <<'-EOF'
+	# masked in base profile, force here
+	prefix-chain
+EOM
+eend_exit $?
+
+#
+# create the make.profile symlinks.
+#
+ebegin "creating make.profile"
+(
+	ln -s "${CHILD_PROFILE}" "${CHILD_EPREFIX}/etc/portage/make.profile"
+)
+eend_exit $?
+
+#
+# adjust permissions of generated files.
+#
+ebegin "adjusting permissions"
+(
+	chmod 644 "${CHILD_EPREFIX}"/etc/portage/make.conf
+)
+eend_exit $?
+
+#
+# now merge some basics.
+#
+ebegin "installing required basic packages"
+(
+	# this -pv is there to avoid the global update output, which is
+	# there on the first emerge run. (thus, just cosmetics).
+	PORTAGE_CONFIGROOT="${CHILD_EPREFIX}" EPREFIX="${CHILD_EPREFIX}" emerge -p1qO baselayout-prefix > /dev/null 2>&1
+
+	set -e
+	PORTAGE_CONFIGROOT="${CHILD_EPREFIX}" EPREFIX="${CHILD_EPREFIX}" emerge -1qO \
+		gentoo-functions baselayout-prefix elt-patches gnuconfig prefix-chain-utils
+
+	# merge with the parent's chost. this forces the use of the parent
+	# compiler, which generally would be illegal - this is an exception.
+	# This is required for example on winnt, because the wrapper has to
+	# be able to use/resolve symlinks, etc. native winnt binaries miss that
+	# ability, but interix binaries don't.
+	PORTAGE_CONFIGROOT="${CHILD_EPREFIX}" EPREFIX="${CHILD_EPREFIX}" CHOST="${PARENT_CHOST}" emerge -1qO gcc-config
+
+	# select the chain wrapper profile from gcc-config
+	env -i "$(type -P bash)" "${CHILD_EPREFIX}"/usr/bin/gcc-config 1
+
+	# do this _AFTER_ selecting the correct compiler!
+	PORTAGE_CONFIGROOT="${CHILD_EPREFIX}" EPREFIX="${CHILD_EPREFIX}" emerge -1qO libtool
+)
+eend_exit $?
+
+#
+# wow, all ok :)
+#
+ewarn
+ewarn "all done. don't forget to tune ${CHILD_EPREFIX}/etc/portage/make.conf."
+ewarn "to enter the new prefix, run \"${CHILD_EPREFIX}/startprefix\"."
+ewarn
+EOF
+}