diskimage-builder/diskimage_builder/elements/gentoo/pre-install.d/02-gentoo-04-install-desired-python
Matthew Thode f1d7e902e3
support alternate portage directories
The 17.1 profile changed the defaults used in portage for where we store
our repo, distfiles and binpkgs.  Some portage related variables need to
be set deterministically.  17.1 is no enabled for Systemd's profile.

Change-Id: Ib55f6875c5cb461c3c530b51d7420ce3dc8da360
2019-07-26 19:30:01 -05:00

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#!/bin/bash
if [[ ${DIB_DEBUG_TRACE:-0} -gt 0 ]]; then
set -x
fi
set -eu
set -o pipefail
if mountpoint -q /dev/shm; then
echo "/dev/shm found in /proc/self/mountinfo"
elif [[ -k /dev/shm ]]; then
echo "/dev/shm exists and is stickied"
else
fix_shm
fi
[[ ! -f ${PORTDIR}/profiles ]] && emerge-webrsync -q
echo "PYTHON_TARGETS=\"${GENTOO_PYTHON_TARGETS}\"" >> /etc/portage/make.conf
[[ "${GENTOO_PYTHON_TARGETS}" == *"python3_6"* ]] && [[ ! -e /usr/lib64/libpython3.6m.so ]] && emerge ${GENTOO_EMERGE_DEFAULT_OPTS} --oneshot dev-lang/python:3.6
[[ "${GENTOO_PYTHON_TARGETS}" == *"python3_5"* ]] && [[ ! -e /usr/lib64/libpython3.5m.so ]] && emerge ${GENTOO_EMERGE_DEFAULT_OPTS} --oneshot dev-lang/python:3.5
[[ "${GENTOO_PYTHON_TARGETS}" == *"python3_4"* ]] && [[ ! -e /usr/lib64/libpython3.4m.so ]] && emerge ${GENTOO_EMERGE_DEFAULT_OPTS} --oneshot dev-lang/python:3.4
[[ "${GENTOO_PYTHON_TARGETS}" == *"python2_7"* ]] && [[ ! -e /usr/lib64/libpython2.7.so ]] && emerge ${GENTOO_EMERGE_DEFAULT_OPTS} --oneshot dev-lang/python:2.7
# disable python in git if we have to, it only supports python-2.7
[[ "${GENTOO_PYTHON_TARGETS}" != *"python2_7"* ]] && echo 'dev-vcs/git -python' >> /etc/portage/package.use/git
# make sure we have the new python for portage bevore we possibly remove python 2.7
# this is done one by one with nodeps because it can sometimes have dependency loops
PYTHON_PACKAGES="dev-python/six dev-python/packaging dev-python/appdirs dev-python/setuptools dev-python/pyparsing dev-python/certifi"
for PACKAGE in ${PYTHON_PACKAGES}; do
emerge ${GENTOO_EMERGE_DEFAULT_OPTS} --oneshot --update --newuse --deep --nodeps "${PACKAGE}"
done
emerge ${GENTOO_EMERGE_DEFAULT_OPTS} --oneshot --update --newuse --deep --complete-graph=y sys-apps/portage dev-python/pyxattr
# set the active python version
eselect python set ${GENTOO_PYTHON_ACTIVE_VERSION}
# allow these uninstalls to fail as they may not be installed to begin with
set +e
[[ "${GENTOO_PYTHON_TARGETS}" != *"python2_7"* ]] && emerge -C -q dev-lang/python:2.7
[[ "${GENTOO_PYTHON_TARGETS}" != *"python3_4"* ]] && emerge -C -q dev-lang/python:3.4
[[ "${GENTOO_PYTHON_TARGETS}" != *"python3_5"* ]] && emerge -C -q dev-lang/python:3.5
[[ "${GENTOO_PYTHON_TARGETS}" != *"python3_6"* ]] && emerge -C -q dev-lang/python:3.6
set -e
# make world consistant
emerge ${GENTOO_EMERGE_DEFAULT_OPTS} --complete-graph=y --update --newuse --deep @world
# rebuild packages that might need it
emerge ${GENTOO_EMERGE_DEFAULT_OPTS} --usepkg=n @preserved-rebuild
# remove unneeded packages
emerge --verbose=n --depclean
# rebuild packages that might have somehow depended on the unneeded packages
emerge ${GENTOO_EMERGE_DEFAULT_OPTS} --usepkg=n @preserved-rebuild
unfix_shm