bootstrap-portage

#!/bin/sh

PORTDIR=/usr/portage
DISTDIR=${PORTDIR}/distfiles
PORTAGE_TMPDIR=/var/tmp

PORTAGE_VER=2.1.11.52
PYTHON_VER=2.7.2

echo "Going to try to boostrap python / portage if needed."
echo "Python ${PYTHON_VER}"
echo "Portage ${PORTAGE_VER}"
echo
for n in PORTDIR DISTDIR PORTAGE_TMPDIR ; do
	eval v=\$$n
	echo "${n} = ${v}"
done
echo
echo "Press return to continue or CTRL+C to abort ..."
read

mkdir -p "${DISTDIR}"

die() {
	[ $# -gt 0 ] && cat "$1"
	exit 1
}
eerror() {
	echo "Error: $@" >&2
}
econf() {
	set -- \
	${ECONF_SOURCE:-.}/configure \
		CC='/opt/gcc/4.4.4/bin/gcc' \
		CXX='/opt/gcc/4.4.4/bin/g++' \
		--prefix=/usr \
		--mandir=/usr/share/man \
		--infodir=/usr/share/info \
		--datadir=/usr/share \
		--sysconfdir=/etc \
		--localstatedir=/var/lib "$@"
	echo "$@"
	"$@" >& .config.log || die .config.log
}
emake() {
	set -- make "$@"
	echo "$@"
	"$@" >& .build.log || die .build.log
}
src_fetch() {
	PN=$1
	PV=$2
	P="${PN}-${PV}"
	eval A=$3
	echo "bootstrapping ${P}"

	if [ ! -e "${DISTDIR}/${A}" ] ; then
		eval wget -P "${DISTDIR}" $4/${A}
	fi
}
src_unpack() {
	export S="${PORTAGE_TMPDIR}/${P}"

	rm -rf "${S}"
	mkdir -p "${S}"
	cd "${S}"
	case ${A} in
	*bz2) tar -jxf "${DISTDIR}"/${A} || die ;;
	*gz)  tar -zxf "${DISTDIR}"/${A} || die ;;
	*)    die ;;
	esac

	cd "${S}"/*/
	S=${PWD}
}

######################
# bootstrap python
######################
if [ ! -x /usr/bin/python ] ; then
	src_fetch python ${PYTHON_VER} 'Python-${PV}.tar.bz2' 'http://www.python.org/ftp/python/${PV%_*}'
	src_unpack

	export PYTHON_DISABLE_MODULES="readline pyexpat dbm gdbm bsddb _curses _curses_panel _tkinter"
	export PYTHON_DISABLE_SSL=1

	econf \
		--enable-unicode=ucs4 \
		--with-fpectl \
		--enable-shared \
		--disable-ipv6 \
		--with-threads \
		--with-cxx=no
	emake
	emake altinstall
	ln -s python`expr substr ${PV} 1 3` /usr/bin/python
else
	echo "python seems to be up-to-date; skipping"
	echo "rm /usr/bin/python to force"
fi

######################
# bootstrap portage
######################
if [ ! -x /usr/bin/emerge ] ; then
	src_fetch portage ${PORTAGE_VER} '${P}.tar.bz2' http://distfiles.gentoo.org/distfiles
	src_unpack

	dodir() { mkdir -p "$@" ; }
	keepdir() { dodir "$@" ; }
	insinto() { INSDESTTREE=$1 ; }
	doins() { cp -p "$@" "$INSDESTTREE/" || die ; }
	newins() { cp -p "$1" "$INSDESTTREE/$2" || die ; }
	exeinto() { EXEDESTTREE=$1 ; }
doexe() {
	for exe in $@; do
		cp "$exe" "$EXEDESTTREE/" || die ;
		chmod 755 "$EXEDESTTREE/"`basename $exe` || die ;
	done
}
	get_libdir() { echo lib ; }
	dosym() { ln -sf "$@" || die ; }
	dodoc() { :; }
src_install() {
	local libdir=$(get_libdir)
	local portage_base="/usr/${libdir}/portage"
	local portage_share_config=/usr/share/portage/config

	cd "${S}"/cnf
	insinto /etc
	doins etc-update.conf dispatch-conf.conf || die

	dodir "$portage_share_config" || die
	insinto "$portage_share_config"
	doins "$S/cnf/make.globals" || die
	newins make.conf make.conf.example || die

	dosym ..${portage_share_config}/make.globals /etc/make.globals

	#insinto /etc/logrotate.d
	#doins "${S}"/cnf/logrotate.d/elog-save-summary || die

	# BSD and OSX need a sed wrapper so that find/xargs work properly
	if use userland_GNU; then
		rm "${S}"/bin/ebuild-helpers/sed || die "Failed to remove sed wrapper"
	fi

	local x symlinks files

	cd "$S" || die "cd failed"
	for x in $(find bin -type d) ; do
		dodir $portage_base/$x || die "dodir failed"
		exeinto $portage_base/$x || die "exeinto failed"
		cd "$S"/$x || die "cd failed"
		files=$(find . -mindepth 1 -maxdepth 1 -type f ! -type l)
		if [ -n "$files" ] ; then
			doexe $files || die "doexe failed"
		fi
		symlinks=$(find . -mindepth 1 -maxdepth 1 -type l)
		if [ -n "$symlinks" ] ; then
			cp -p $symlinks "$D$portage_base/$x" || die "cp failed"
		fi
	done

	cd "$S" || die "cd failed"
	for x in $(find pym/* -type d | grep -v "pym/portage/tests") ; do
		dodir $portage_base/$x || die "dodir failed"
		insinto $portage_base/$x || die "insinto failed"
		cd "$S"/$x || die "cd failed"
		# __pycache__ directories contain no py files
		[[ "*.py" != $(echo *.py) ]] || continue
		doins *.py || die "doins failed"
		symlinks=$(find . -mindepth 1 -maxdepth 1 -type l)
		if [ -n "$symlinks" ] ; then
			cp -p $symlinks "$D$portage_base/$x" || die "cp failed"
		fi
	done

	# We install some minimal tests for use as a preinst sanity check.
	# These tests must be able to run without a full source tree and
	# without relying on a previous portage instance being installed.
	cd "$S" || die "cd failed"
	dodir $portage_base/pym/portage/tests || die
	exeinto $portage_base/pym/portage/tests || die
	doexe pym/portage/tests/runTests || die
	insinto $portage_base/pym/portage/tests || die
	doins pym/portage/tests/*.py || die
	dodir $portage_base/pym/portage/tests/lint || die
	insinto $portage_base/pym/portage/tests/lint || die
	doins pym/portage/tests/lint/*.py || die
	doins pym/portage/tests/lint/__test__ || die

	# Symlinks to directories cause up/downgrade issues and the use of these
	# modules outside of portage is probably negligible.
	for x in "${D}${portage_base}/pym/"{cache,elog_modules} ; do
		[ ! -L "${x}" ] && continue
		die "symlink to directory will cause upgrade/downgrade issues: '${x}'"
	done

	doman "${S}"/man/*.[0-9]
	if use linguas_pl; then
		doman -i18n=pl "${S_PL}"/man/pl/*.[0-9]
		doman -i18n=pl_PL.UTF-8 "${S_PL}"/man/pl_PL.UTF-8/*.[0-9]
	fi

	dodoc "${S}"/{ChangeLog,NEWS,RELEASE-NOTES}
	use doc && dohtml -r "${S}"/doc/*
	use epydoc && dohtml -r "${WORKDIR}"/api

	dodir /usr/bin
	for x in ebuild egencache emerge portageq quickpkg repoman ; do
		dosym ../${libdir}/portage/bin/${x} /usr/bin/${x}
	done

	dodir /usr/sbin
	local my_syms="archive-conf
		dispatch-conf
		emaint
		emerge-webrsync
		env-update
		etc-update
		fixpackages
		regenworld"
	local x
	for x in ${my_syms}; do
		dosym ../${libdir}/portage/bin/${x} /usr/sbin/${x}
	done
	dosym env-update /usr/sbin/update-env
	dosym etc-update /usr/sbin/update-etc

	dodir /etc/portage
	keepdir /etc/portage
}
	set -x
	src_install
	set +x
else
	echo "python seems to be up-to-date; skipping"
	echo "rm /usr/bin/emerge to force"
fi

######################
# setup misc configs
######################
grep -qs ^portage: /etc/group || groupadd -g 250 portage
grep -qs ^portage: /etc/passwd || echo portage:x:250:250:portage:/var/tmp/portage:/bin/false >> /etc/passwd