diff options
| -rw-r--r-- | prefix-stack-ccwrap | 94 | ||||
| -rw-r--r-- | prefix-stack-setup | 201 | ||||
| -rw-r--r-- | prefix-stack.bash_login | 19 | ||||
| -rw-r--r-- | prefix-stack.bashrc | 24 | ||||
| -rw-r--r-- | prefix-stack.envd.99stack | 3 | ||||
| -rw-r--r-- | prefix-toolkit-0.ebuild | 565 | ||||
| -rw-r--r-- | startprefix | 76 |
7 files changed, 982 insertions, 0 deletions
diff --git a/prefix-stack-ccwrap b/prefix-stack-ccwrap new file mode 100644 index 0000000..93f7a82 --- /dev/null +++ b/prefix-stack-ccwrap @@ -0,0 +1,94 @@ +#!@GENTOO_PORTAGE_BPREFIX@/bin/bash + +if [ -r /cygdrive/. ]; then + winpath2unix() { cygpath -u "$1"; } + unixpath2win() { cygpath -w "$1"; } +fi + +myself=${0##*/} # basename $0 +link_dirs=() +opts=() +chost="@GENTOO_PORTAGE_CHOST@" +prefix="@GENTOO_PORTAGE_EPREFIX@" +absprefix=${prefix} +if [[ ${chost} == *"-winnt"* ]]; then + # we may get called from windows binary, like pkgdata in dev-libs/icu + # in this case, PATH elements get the "/dev/fs/C/WINDOWS/SUA" prefix + absprefix=$(winpath2unix "$(unixpath2win "${absprefix}")") +fi +[[ ${myself} == *windres* ]] && mode=compile || mode=link +orig_args=("$@") + +for opt in "$@" +do + case "$opt" in + -L) + link_dirs=("${link_dirs[@]}" "-L$1") + shift + ;; + -L*) + link_dirs=("${link_dirs[@]}" "${opt}") + ;; + *) + case "${opt}" in + -v) + # -v done right: only use mode version if -v is the _only_ + # argument on the command line. + [[ ${#orig_args[@]} -gt 1 ]] || mode=version + ;; + --version) mode=version ;; + -c|-E|-S) mode=compile ;; + -print-search-dirs) mode=dirs ;; + esac + opts=("${opts[@]}" "${opt}") + ;; + esac +done + +# remove any path to current prefix, need base prefix only +new_path= +save_ifs=$IFS +IFS=':' +for p in $PATH +do + IFS=$save_ifs + [[ ${p#${absprefix}} != "${p}" ]] && continue + if [[ -z "${new_path}" ]]; then + new_path="${p}" + else + new_path="${new_path}:${p}" + fi +done +IFS=$save_ifs + +PATH=${new_path} + +# binutils-config's ldwrapper understands '-R' for aix and hpux too. +# parity (winnt) understands -rpath only ... +case "${chost}" in +*-winnt*) rpath_opt="-Wl,-rpath," ;; +*) rpath_opt="-Wl,-R," ;; +esac + +pfx_link=("-L${prefix}/usr/lib" "-L${prefix}/lib") +pfx_link_r=("${rpath_opt}${prefix}/lib" "${rpath_opt}${prefix}/usr/lib") +pfx_comp=("-I${prefix}/include" "-I${prefix}/usr/include") + +# ensure we run the right chost program in base prefix +[[ ${myself} == *-*-*-* ]] || myself=${chost}-${myself#${chost}-} + +case "$mode" in +link) exec "${myself}" "${link_dirs[@]}" "${pfx_link[@]}" "${opts[@]}" "${pfx_comp[@]}" "${pfx_link_r[@]}" ;; +compile) exec "${myself}" "${link_dirs[@]}" "${opts[@]}" "${pfx_comp[@]}" ;; +version) exec "${myself}" "${orig_args[@]}" ;; +dirs) + "${myself}" "${orig_args[@]}" | while read line; do + if [[ "${line}" == "libraries: ="* ]]; then + echo "libraries: =${prefix}/usr/lib:${prefix}/lib:${line#"libraries: ="}" + else + echo "${line}" + fi + done + ;; +*) echo "cannot infer ${myself}'s mode from comamnd line arguments"; exit 1 ;; +esac diff --git a/prefix-stack-setup b/prefix-stack-setup new file mode 100644 index 0000000..28e3efa --- /dev/null +++ b/prefix-stack-setup @@ -0,0 +1,201 @@ +#!@GENTOO_PORTAGE_EPREFIX@/bin/bash +# Copyright 1999-2019 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +PARENT_EPREFIX="@GENTOO_PORTAGE_EPREFIX@" +PARENT_CHOST="@GENTOO_PORTAGE_CHOST@" +CHILD_EPREFIX= +CHILD_PROFILE= + +# +# 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=}" ;; + + --help) + einfo "$0 usage:" + einfo " --eprefix=[PATH] Path to new EPREFIX to create stacked to the prefix" + einfo " where this script is installed (${PARENT_EPREFIX})" + einfo " --profile=[PATH] The absolute path to the profile to use. This path" + einfo " must point to a directory within ${PARENT_EPREFIX}" + exit 0 + ;; + esac +done + +# +# sanity check of given values +# + +test -n "${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; } + +einfo "creating stacked 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/profile/use.mask + mkdir -p "${CHILD_EPREFIX}"/etc/portage/profile/use.force + mkdir -p "${CHILD_EPREFIX}"/etc/portage/env + mkdir -p "${CHILD_EPREFIX}"/etc/portage/package.env + ln -s "${PARENT_EPREFIX}"/etc/portage/repos.conf "${CHILD_EPREFIX}"/etc/portage/repos.conf +) +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 + echo "# Mirrors from parent prefix." + echo "GENTOO_MIRRORS=\"$(portageq envvar GENTOO_MIRRORS || true)\"" + echo + echo "# Below comes the prefix-stack setup. Only change things" + echo "# if you know exactly what you are doing!" + echo "EPREFIX=\"${CHILD_EPREFIX}\"" + echo "PORTAGE_OVERRIDE_EPREFIX=\"${PARENT_EPREFIX}\"" + echo "BROOT=\"${PARENT_EPREFIX}\"" +) > "${CHILD_EPREFIX}"/etc/portage/make.conf +eend_exit $? + +ebegin "creating use.mask/prefix-stack" +printf -- '-%s\n' prefix{,-guest,-stack} > "${CHILD_EPREFIX}"/etc/portage/profile/use.mask/prefix-stack +eend_exit $? + +ebegin "creating use.force/prefix-stack" +printf -- '%s\n' prefix{,-guest,-stack} > "${CHILD_EPREFIX}"/etc/portage/profile/use.force/prefix-stack +eend_exit $? + +ebegin "creating env/host-cc.conf" +cat > "${CHILD_EPREFIX}"/etc/portage/env/host-cc.conf <<-EOM + CC=${PARENT_CHOST}-gcc + CXX=${PARENT_CHOST}-g++ + EOM +eend_exit $? + +ebegin "creating package.env/prefix-stack" +cat > "${CHILD_EPREFIX}"/etc/portage/package.env/prefix-stack <<-'EOM' + # 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 cygwin binaries don't. + sys-devel/gcc-config host-cc.conf + sys-apps/gentoo-functions host-cc.conf + EOM +eend_exit $? + +# +# create the make.profile symlinks. +# +ebegin "creating make.profile" +( + ln -s "${CHILD_PROFILE}" "${CHILD_EPREFIX}/etc/portage/make.profile" +) +eend_exit $? + +# +# adjust permissions of generated files. +# +ebegin "adjusting permissions" +( + set -e + chmod 644 "${CHILD_EPREFIX}"/etc/portage/make.conf + chmod 644 "${CHILD_EPREFIX}"/etc/portage/env/host-cc.conf + chmod 644 "${CHILD_EPREFIX}"/etc/portage/package.env/prefix-stack +) +eend_exit $? + +# +# now merge some basics. +# +ebegin "installing required basic packages" +( + set -e + export PORTAGE_CONFIGROOT@=@"${CHILD_EPREFIX}" + export EPREFIX@=@"${CHILD_EPREFIX}" + export PORTAGE_OVERRIDE_EPREFIX@=@"${PARENT_EPREFIX}" + +# # this -pv is there to avoid the global update output, which is +# # there on the first emerge run. (thus, just cosmetics). +# emerge --pretend --oneshot --nodeps baselayout-prefix + + # let baselayout create the directories + USE@=@"${USE} build" \ + emerge --verbose --nodeps --oneshot \ + '>=baselayout-prefix-2.6' + + # Record the prefix-toolkit into @world file, as it provides the + # env.d telling the PM to manage this stacked Prefix, but may not + # (unlike baselayout) be part of @system set per the profile. + emerge --verbose --nodeps \ + prefix-toolkit + + emerge --verbose --nodeps --oneshot \ + gentoo-functions \ + elt-patches \ + gnuconfig \ + gcc-config + + # select the stack wrapper profile from gcc-config + env -i PORTAGE_CONFIGROOT="${CHILD_EPREFIX}" "$(type -P bash)" "${CHILD_EPREFIX}"/usr/bin/gcc-config 1 + + # do this _after_ selecting the correct compiler! + emerge --verbose --nodeps --oneshot \ + 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 diff --git a/prefix-stack.bash_login b/prefix-stack.bash_login new file mode 100644 index 0000000..25b12ce --- /dev/null +++ b/prefix-stack.bash_login @@ -0,0 +1,19 @@ +# Copyright 1999-2019 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 +# +# In stacked Prefix there is no bash installed, so there is +# no bash able to load this Prefix' profile as login shell. +# Instead, you can specify this one as bash rcfile to mimic +# a bash login shell using this stacked Prefix profile. +# + +if [[ -s '@GENTOO_PORTAGE_EPREFIX@/etc/profile' ]] ; then + . '@GENTOO_PORTAGE_EPREFIX@/etc/profile' +fi +if [[ -s ~/.bash_profile ]] ; then + . ~/.bash_profile +elif [[ -s ~/.bash_login ]] ; then + . ~/.bash_login +elif [[ -s ~/.profile ]] ; then + . ~/.profile +fi diff --git a/prefix-stack.bashrc b/prefix-stack.bashrc new file mode 100644 index 0000000..7e9b951 --- /dev/null +++ b/prefix-stack.bashrc @@ -0,0 +1,24 @@ +# Copyright 1999-2019 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 +# +# In stacked Prefix there is no bash installed, yet +# etc/bash/bashrc from base Prefix still is useful. +# + +if [[ $- != *i* ]] ; then + # Shell is non-interactive, bashrc does not apply + return +fi + +if [[ -r @GENTOO_PORTAGE_BPREFIX@/etc/bash/bashrc ]] ; then + source '@GENTOO_PORTAGE_BPREFIX@/etc/bash/bashrc' + # only if base Prefix does have an etc/bash/bashrc, we also + # run bashrc snippets provided by packages in stacked Prefix + for sh in '@GENTOO_PORTAGE_EPREFIX@'/etc/bash/bashrc.d/* ; do + [[ -r ${sh} ]] && source "${sh}" + done + unset sh +else + # etc/profile does expect etc/bash/bashrc to set PS1 + PS1='\u@\h \w \$ ' +fi diff --git a/prefix-stack.envd.99stack b/prefix-stack.envd.99stack new file mode 100644 index 0000000..accb12f --- /dev/null +++ b/prefix-stack.envd.99stack @@ -0,0 +1,3 @@ +PKG_CONFIG_PATH@=@"@GENTOO_PORTAGE_EPREFIX@/usr/lib/pkgconfig:@GENTOO_PORTAGE_EPREFIX@/usr/share/pkgconfig" +PORTAGE_CONFIGROOT@=@"@GENTOO_PORTAGE_EPREFIX@" +EPREFIX@=@"@GENTOO_PORTAGE_EPREFIX@" diff --git a/prefix-toolkit-0.ebuild b/prefix-toolkit-0.ebuild new file mode 100644 index 0000000..23f4845 --- /dev/null +++ b/prefix-toolkit-0.ebuild @@ -0,0 +1,565 @@ +# Copyright 1999-2019 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +EAPI=7 + +DESCRIPTION="Utilities for users of Gentoo Prefix" +HOMEPAGE="https://prefix.gentoo.org/" +SRC_URI="" + +LICENSE="GPL-3" +SLOT="0" + +[[ ${PV} == 9999 ]] || +KEYWORDS="~x64-cygwin ~amd64-linux ~x86-linux ~x86-winnt" + +DEPEND="" +RDEPEND=" + >sys-apps/portage-2.3.62 + !app-portage/prefix-chain-setup + !sys-apps/prefix-chain-utils + prefix-stack? ( + >=sys-apps/baselayout-prefix-2.6 + ) +" + +S="${WORKDIR}" + +my_unpack() { + local infile=$1 + local outfile=${2:-${infile}} + ebegin "extracting ${outfile}" + sed -ne "/^: ${infile} /,/EOIN/{/EOIN/d;p}" "${EBUILD}" \ + > "${outfile}" || die "Failed to unpack ${outfile}" + eend $? +} + +src_unpack() { + if use prefix-stack ; then + my_unpack prefix-stack.bash_login + my_unpack prefix-stack.bashrc + my_unpack prefix-stack.envd.99stack + my_unpack prefix-stack-ccwrap + local editor pager + for editor in "${EDITOR}" {"${EPREFIX}","${BROOT}"}/bin/nano + do + [[ -x ${editor} ]] || continue + done + for pager in "${PAGER}" {"${EPREFIX}","${BROOT}"}/usr/bin/less + do + [[ -x ${pager} ]] || continue + done + printf '%s\n' "EDITOR=\"${editor}\"" "PAGER=\"${pager}\"" > 000fallback + else + my_unpack prefix-stack-setup + fi + my_unpack startprefix +} + +my_prefixify() { + local ebash eenv + if use prefix-stack ; then + ebash="${BROOT}/bin/bash" + eenv="${BROOT}/usr/bin/env" + else + ebash="${EPREFIX}/bin/bash" + eenv="${EPREFIX}/usr/bin/env" + fi + + # the @=@ prevents repoman from believing we set readonly vars + sed -e "s,@GENTOO_PORTAGE_BPREFIX@,${BROOT},g" \ + -e "s,@GENTOO_PORTAGE_EPREFIX@,${EPREFIX},g" \ + -e "s,@GENTOO_PORTAGE_CHOST@,${CHOST},g" \ + -e "s,@GENTOO_PORTAGE_EBASH@,${ebash},g" \ + -e "s,@GENTOO_PORTAGE_EENV@,${eenv},g" \ + -e "s,@=@,=,g" \ + -i "$@" || die +} + +src_configure() { + # do not eprefixify during unpack, to allow userpatches to apply + my_prefixify * +} + +src_install-prefix-stack-ccwrap() { + # install toolchain wrapper. + local wrapperdir=/usr/${CHOST}/gcc-bin/${CHOST}-${PN}/${PV} + local wrappercfg=${CHOST}-${P} + + exeinto $wrapperdir + doexe prefix-stack-ccwrap + + local cc + for cc in \ + gcc \ + g++ \ + cpp \ + c++ \ + windres \ + ; do + dosym prefix-stack-ccwrap $wrapperdir/${CHOST}-${cc} + dosym ${CHOST}-${cc} $wrapperdir/${cc} + done + + # LDPATH is required to keep gcc-config happy :( + cat > ./${wrappercfg} <<-EOF + GCC_PATH="${EPREFIX}$wrapperdir" + LDPATH="${EPREFIX}$wrapperdir" + EOF + + insinto /etc/env.d/gcc + doins ./${wrappercfg} +} + +src_install() { + if use prefix-stack; then + src_install-prefix-stack-ccwrap + insinto /etc + doins prefix-stack.bash_login + insinto /etc/bash + newins prefix-stack.bashrc bashrc + newenvd prefix-stack.envd.99stack 99stack + doenvd 000fallback + else + dobin prefix-stack-setup + fi + exeinto / + doexe startprefix +} + +return 0 + +: startprefix <<'EOIN' +#!@GENTOO_PORTAGE_EBASH@ +# Copyright 1999-2019 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +# Fabian Groffen <grobian@gentoo.org> -- 2007-03-10 +# Enters the prefix environment by starting a login shell from the +# prefix. The SHELL environment variable is elevated in order to make +# applications that start login shells to work, such as `screen`. + +# if you come from a substantially polluted environment (another +# Prefix), a cleanup as follows resolves most oddities I've ever seen: +# env -i HOME=$HOME TERM=$TERM USER=$USER $SHELL -l +# hence this script starts the Prefix shell like this + +if [[ ${SHELL#@GENTOO_PORTAGE_EPREFIX@} != ${SHELL} ]] +then + echo "You appear to be in prefix already (SHELL=${SHELL})" > /dev/stderr + exit -1 +elif [[ ${SHELL#@GENTOO_PORTAGE_BPREFIX@} != ${SHELL} ]] && + [[ ${EPREFIX-unset} == '@GENTOO_PORTAGE_EPREFIX@' ]] +then + echo "You appear to be in stacked prefix already (EPREFIX=${EPREFIX})" > /dev/stderr + exit -1 +fi + +# What is our prefix? +EPREFIX@=@'@GENTOO_PORTAGE_EPREFIX@' +BPREFIX@=@'@GENTOO_PORTAGE_BPREFIX@' + +# not all systems have the same location for shells, however what it +# boils down to, is that we need to know what the shell is, and then we +# can find it in the bin dir of our prefix +for SHELL in \ + "${EPREFIX}/bin/${SHELL##*/}" \ + "${BPREFIX}/bin/${SHELL##*/}" \ + ${SHELL##*/} +do + [[ ${SHELL} == */* && -x ${SHELL} ]] && break +done + +# check if the shell exists +if [[ ${SHELL} != */* ]] +then + echo "Failed to find the Prefix shell, this is probably" > /dev/stderr + echo "because you didn't emerge the shell ${SHELL}" > /dev/stderr + exit 1 +fi + +# set the prefix shell in the environment +export SHELL + +# give a small notice +echo "Entering Gentoo Prefix ${EPREFIX}" +# start the login shell, clean the entire environment but what's needed +RETAIN="HOME=$HOME TERM=$TERM USER=$USER SHELL=$SHELL" +# PROFILEREAD is necessary on SUSE not to wipe the env on shell start +[[ -n ${PROFILEREAD} ]] && RETAIN+=" PROFILEREAD=$PROFILEREAD" +# ssh-agent is handy to keep, of if set, inherit it +[[ -n ${SSH_AUTH_SOCK} ]] && RETAIN+=" SSH_AUTH_SOCK=$SSH_AUTH_SOCK" +# if we're on some X terminal, makes sense to inherit that too +[[ -n ${DISPLAY} ]] && RETAIN+=" DISPLAY=$DISPLAY" +# do it! +if [[ ${SHELL#${EPREFIX}} != ${SHELL} ]] ; then + '@GENTOO_PORTAGE_EENV@' -i $RETAIN $SHELL -l +elif [[ ' bash ' == *" ${SHELL##*/} "* ]] ; then + # shell coming from different prefix would load it's own + # etc/profile upon -l, so we have to override + '@GENTOO_PORTAGE_EENV@' -i ${RETAIN} "${SHELL}" --rcfile "${EPREFIX}"/etc/prefix-stack.bash_login -i +else + echo "Only bash is supported with stacked Prefix (you have ${SHELL##*/}), sorry!" > /dev/stderr + exit 1 +fi +# and leave a message when we exit... the shell might return non-zero +# without having real problems, so don't send alarming messages about +# that +echo "Leaving Gentoo Prefix with exit status $?" +EOIN + +: prefix-stack.bashrc <<'EOIN' +# Copyright 1999-2019 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 +# +# In stacked Prefix there is no bash installed, yet +# etc/bash/bashrc from base Prefix still is useful. +# + +if [[ $- != *i* ]] ; then + # Shell is non-interactive, bashrc does not apply + return +fi + +if [[ -r @GENTOO_PORTAGE_BPREFIX@/etc/bash/bashrc ]] ; then + source '@GENTOO_PORTAGE_BPREFIX@/etc/bash/bashrc' + # only if base Prefix does have an etc/bash/bashrc, we also + # run bashrc snippets provided by packages in stacked Prefix + for sh in '@GENTOO_PORTAGE_EPREFIX@'/etc/bash/bashrc.d/* ; do + [[ -r ${sh} ]] && source "${sh}" + done + unset sh +else + # etc/profile does expect etc/bash/bashrc to set PS1 + PS1='\u@\h \w \$ ' +fi +EOIN + +: prefix-stack.bash_login <<'EOIN' +# Copyright 1999-2019 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 +# +# In stacked Prefix there is no bash installed, so there is +# no bash able to load this Prefix' profile as login shell. +# Instead, you can specify this one as bash rcfile to mimic +# a bash login shell using this stacked Prefix profile. +# + +if [[ -s '@GENTOO_PORTAGE_EPREFIX@/etc/profile' ]] ; then + . '@GENTOO_PORTAGE_EPREFIX@/etc/profile' +fi +if [[ -s ~/.bash_profile ]] ; then + . ~/.bash_profile +elif [[ -s ~/.bash_login ]] ; then + . ~/.bash_login +elif [[ -s ~/.profile ]] ; then + . ~/.profile +fi +EOIN + +: prefix-stack.envd.99stack <<'EOIN' +PKG_CONFIG_PATH@=@"@GENTOO_PORTAGE_EPREFIX@/usr/lib/pkgconfig:@GENTOO_PORTAGE_EPREFIX@/usr/share/pkgconfig" +PORTAGE_CONFIGROOT@=@"@GENTOO_PORTAGE_EPREFIX@" +EPREFIX@=@"@GENTOO_PORTAGE_EPREFIX@" +EOIN + +: prefix-stack-setup <<'EOIN' +#!@GENTOO_PORTAGE_EPREFIX@/bin/bash +# Copyright 1999-2019 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +PARENT_EPREFIX="@GENTOO_PORTAGE_EPREFIX@" +PARENT_CHOST="@GENTOO_PORTAGE_CHOST@" +CHILD_EPREFIX= +CHILD_PROFILE= + +# +# 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=}" ;; + + --help) + einfo "$0 usage:" + einfo " --eprefix=[PATH] Path to new EPREFIX to create stacked to the prefix" + einfo " where this script is installed (${PARENT_EPREFIX})" + einfo " --profile=[PATH] The absolute path to the profile to use. This path" + einfo " must point to a directory within ${PARENT_EPREFIX}" + exit 0 + ;; + esac +done + +# +# sanity check of given values +# + +test -n "${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; } + +einfo "creating stacked 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/profile/use.mask + mkdir -p "${CHILD_EPREFIX}"/etc/portage/profile/use.force + mkdir -p "${CHILD_EPREFIX}"/etc/portage/env + mkdir -p "${CHILD_EPREFIX}"/etc/portage/package.env + ln -s "${PARENT_EPREFIX}"/etc/portage/repos.conf "${CHILD_EPREFIX}"/etc/portage/repos.conf +) +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 + echo "# Mirrors from parent prefix." + echo "GENTOO_MIRRORS=\"$(portageq envvar GENTOO_MIRRORS || true)\"" + echo + echo "# Below comes the prefix-stack setup. Only change things" + echo "# if you know exactly what you are doing!" + echo "EPREFIX=\"${CHILD_EPREFIX}\"" + echo "PORTAGE_OVERRIDE_EPREFIX=\"${PARENT_EPREFIX}\"" + echo "BROOT=\"${PARENT_EPREFIX}\"" +) > "${CHILD_EPREFIX}"/etc/portage/make.conf +eend_exit $? + +ebegin "creating use.mask/prefix-stack" +printf -- '-%s\n' prefix{,-guest,-stack} > "${CHILD_EPREFIX}"/etc/portage/profile/use.mask/prefix-stack +eend_exit $? + +ebegin "creating use.force/prefix-stack" +printf -- '%s\n' prefix{,-guest,-stack} > "${CHILD_EPREFIX}"/etc/portage/profile/use.force/prefix-stack +eend_exit $? + +ebegin "creating env/host-cc.conf" +cat > "${CHILD_EPREFIX}"/etc/portage/env/host-cc.conf <<-EOM + CC=${PARENT_CHOST}-gcc + CXX=${PARENT_CHOST}-g++ + EOM +eend_exit $? + +ebegin "creating package.env/prefix-stack" +cat > "${CHILD_EPREFIX}"/etc/portage/package.env/prefix-stack <<-'EOM' + # 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 cygwin binaries don't. + sys-devel/gcc-config host-cc.conf + sys-apps/gentoo-functions host-cc.conf + EOM +eend_exit $? + +# +# create the make.profile symlinks. +# +ebegin "creating make.profile" +( + ln -s "${CHILD_PROFILE}" "${CHILD_EPREFIX}/etc/portage/make.profile" +) +eend_exit $? + +# +# adjust permissions of generated files. +# +ebegin "adjusting permissions" +( + set -e + chmod 644 "${CHILD_EPREFIX}"/etc/portage/make.conf + chmod 644 "${CHILD_EPREFIX}"/etc/portage/env/host-cc.conf + chmod 644 "${CHILD_EPREFIX}"/etc/portage/package.env/prefix-stack +) +eend_exit $? + +# +# now merge some basics. +# +ebegin "installing required basic packages" +( + set -e + export PORTAGE_CONFIGROOT@=@"${CHILD_EPREFIX}" + export EPREFIX@=@"${CHILD_EPREFIX}" + export PORTAGE_OVERRIDE_EPREFIX@=@"${PARENT_EPREFIX}" + +# # this -pv is there to avoid the global update output, which is +# # there on the first emerge run. (thus, just cosmetics). +# emerge --pretend --oneshot --nodeps baselayout-prefix + + # let baselayout create the directories + USE@=@"${USE} build" \ + emerge --verbose --nodeps --oneshot \ + '>=baselayout-prefix-2.6' + + # Record the prefix-toolkit into @world file, as it provides the + # env.d telling the PM to manage this stacked Prefix, but may not + # (unlike baselayout) be part of @system set per the profile. + emerge --verbose --nodeps \ + prefix-toolkit + + emerge --verbose --nodeps --oneshot \ + gentoo-functions \ + elt-patches \ + gnuconfig \ + gcc-config + + # select the stack wrapper profile from gcc-config + env -i PORTAGE_CONFIGROOT="${CHILD_EPREFIX}" "$(type -P bash)" "${CHILD_EPREFIX}"/usr/bin/gcc-config 1 + + # do this _after_ selecting the correct compiler! + emerge --verbose --nodeps --oneshot \ + 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 +EOIN + +: prefix-stack-ccwrap <<'EOIN' +#!@GENTOO_PORTAGE_BPREFIX@/bin/bash + +if [ -r /cygdrive/. ]; then + winpath2unix() { cygpath -u "$1"; } + unixpath2win() { cygpath -w "$1"; } +fi + +myself=${0##*/} # basename $0 +link_dirs=() +opts=() +chost="@GENTOO_PORTAGE_CHOST@" +prefix="@GENTOO_PORTAGE_EPREFIX@" +absprefix=${prefix} +if [[ ${chost} == *"-winnt"* ]]; then + # we may get called from windows binary, like pkgdata in dev-libs/icu + # in this case, PATH elements get the "/dev/fs/C/WINDOWS/SUA" prefix + absprefix=$(winpath2unix "$(unixpath2win "${absprefix}")") +fi +[[ ${myself} == *windres* ]] && mode=compile || mode=link +orig_args=("$@") + +for opt in "$@" +do + case "$opt" in + -L) + link_dirs=("${link_dirs[@]}" "-L$1") + shift + ;; + -L*) + link_dirs=("${link_dirs[@]}" "${opt}") + ;; + *) + case "${opt}" in + -v) + # -v done right: only use mode version if -v is the _only_ + # argument on the command line. + [[ ${#orig_args[@]} -gt 1 ]] || mode=version + ;; + --version) mode=version ;; + -c|-E|-S) mode=compile ;; + -print-search-dirs) mode=dirs ;; + esac + opts=("${opts[@]}" "${opt}") + ;; + esac +done + +# remove any path to current prefix, need base prefix only +new_path= +save_ifs=$IFS +IFS=':' +for p in $PATH +do + IFS=$save_ifs + [[ ${p#${absprefix}} != "${p}" ]] && continue + if [[ -z "${new_path}" ]]; then + new_path="${p}" + else + new_path="${new_path}:${p}" + fi +done +IFS=$save_ifs + +PATH=${new_path} + +# binutils-config's ldwrapper understands '-R' for aix and hpux too. +# parity (winnt) understands -rpath only ... +case "${chost}" in +*-winnt*) rpath_opt="-Wl,-rpath," ;; +*) rpath_opt="-Wl,-R," ;; +esac + +pfx_link=("-L${prefix}/usr/lib" "-L${prefix}/lib") +pfx_link_r=("${rpath_opt}${prefix}/lib" "${rpath_opt}${prefix}/usr/lib") +pfx_comp=("-I${prefix}/include" "-I${prefix}/usr/include") + +# ensure we run the right chost program in base prefix +[[ ${myself} == *-*-*-* ]] || myself=${chost}-${myself#${chost}-} + +case "$mode" in +link) exec "${myself}" "${link_dirs[@]}" "${pfx_link[@]}" "${opts[@]}" "${pfx_comp[@]}" "${pfx_link_r[@]}" ;; +compile) exec "${myself}" "${link_dirs[@]}" "${opts[@]}" "${pfx_comp[@]}" ;; +version) exec "${myself}" "${orig_args[@]}" ;; +dirs) + "${myself}" "${orig_args[@]}" | while read line; do + if [[ "${line}" == "libraries: ="* ]]; then + echo "libraries: =${prefix}/usr/lib:${prefix}/lib:${line#"libraries: ="}" + else + echo "${line}" + fi + done + ;; +*) echo "cannot infer ${myself}'s mode from comamnd line arguments"; exit 1 ;; +esac +EOIN diff --git a/startprefix b/startprefix new file mode 100644 index 0000000..89ce10f --- /dev/null +++ b/startprefix @@ -0,0 +1,76 @@ +#!@GENTOO_PORTAGE_EBASH@ +# Copyright 1999-2019 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +# Fabian Groffen <grobian@gentoo.org> -- 2007-03-10 +# Enters the prefix environment by starting a login shell from the +# prefix. The SHELL environment variable is elevated in order to make +# applications that start login shells to work, such as `screen`. + +# if you come from a substantially polluted environment (another +# Prefix), a cleanup as follows resolves most oddities I've ever seen: +# env -i HOME=$HOME TERM=$TERM USER=$USER $SHELL -l +# hence this script starts the Prefix shell like this + +if [[ ${SHELL#@GENTOO_PORTAGE_EPREFIX@} != ${SHELL} ]] +then + echo "You appear to be in prefix already (SHELL=${SHELL})" > /dev/stderr + exit -1 +elif [[ ${SHELL#@GENTOO_PORTAGE_BPREFIX@} != ${SHELL} ]] && + [[ ${EPREFIX-unset} == '@GENTOO_PORTAGE_EPREFIX@' ]] +then + echo "You appear to be in stacked prefix already (EPREFIX=${EPREFIX})" > /dev/stderr + exit -1 +fi + +# What is our prefix? +EPREFIX@=@'@GENTOO_PORTAGE_EPREFIX@' +BPREFIX@=@'@GENTOO_PORTAGE_BPREFIX@' + +# not all systems have the same location for shells, however what it +# boils down to, is that we need to know what the shell is, and then we +# can find it in the bin dir of our prefix +for SHELL in \ + "${EPREFIX}/bin/${SHELL##*/}" \ + "${BPREFIX}/bin/${SHELL##*/}" \ + ${SHELL##*/} +do + [[ ${SHELL} == */* && -x ${SHELL} ]] && break +done + +# check if the shell exists +if [[ ${SHELL} != */* ]] +then + echo "Failed to find the Prefix shell, this is probably" > /dev/stderr + echo "because you didn't emerge the shell ${SHELL}" > /dev/stderr + exit 1 +fi + +# set the prefix shell in the environment +export SHELL + +# give a small notice +echo "Entering Gentoo Prefix ${EPREFIX}" +# start the login shell, clean the entire environment but what's needed +RETAIN="HOME=$HOME TERM=$TERM USER=$USER SHELL=$SHELL" +# PROFILEREAD is necessary on SUSE not to wipe the env on shell start +[[ -n ${PROFILEREAD} ]] && RETAIN+=" PROFILEREAD=$PROFILEREAD" +# ssh-agent is handy to keep, of if set, inherit it +[[ -n ${SSH_AUTH_SOCK} ]] && RETAIN+=" SSH_AUTH_SOCK=$SSH_AUTH_SOCK" +# if we're on some X terminal, makes sense to inherit that too +[[ -n ${DISPLAY} ]] && RETAIN+=" DISPLAY=$DISPLAY" +# do it! +if [[ ${SHELL#${EPREFIX}} != ${SHELL} ]] ; then + '@GENTOO_PORTAGE_EENV@' -i $RETAIN $SHELL -l +elif [[ ' bash ' == *" ${SHELL##*/} "* ]] ; then + # shell coming from different prefix would load it's own + # etc/profile upon -l, so we have to override + '@GENTOO_PORTAGE_EENV@' -i ${RETAIN} "${SHELL}" --rcfile "${EPREFIX}"/etc/prefix-stack.bash_login -i +else + echo "Only bash is supported with stacked Prefix (you have ${SHELL##*/}), sorry!" > /dev/stderr + exit 1 +fi +# and leave a message when we exit... the shell might return non-zero +# without having real problems, so don't send alarming messages about +# that +echo "Leaving Gentoo Prefix with exit status $?" |