diskimage-builder/diskimage_builder/elements/gentoo/pre-install.d/10-install-desired-python
Matthew Thode ade82904a1
Make python changes more reliable
We oneshot emerge without calculating dependencies a few things to solve
for possible dependency loops.

Python 3.5 also became stable, so don't need to do special things for
it.

Matched the uninstall with the install lines (no need for a full if
statement).

Change-Id: I7c5e546612ac47d659e73a46a52e34d39ca81949
2017-11-20 23:19:46 -06:00

69 lines
3.3 KiB
Bash
Executable file

#!/bin/bash
if [[ ${DIB_DEBUG_TRACE:-0} -gt 0 ]]; then
set -x
fi
set -eu
set -o pipefail
if mountpoint -q /dev/shm; then
echo "/dev/shm found in /proc/self/mountinfo"
elif [[ -k /dev/shm ]]; then
echo "/dev/shm exists and is stickied"
else
fix_shm
fi
if [[ ! -f /usr/portage/profiles ]]; then
emerge-webrsync -q
fi
# get the directories in order
mkdir -p /etc/portage/profile
mkdir -p /etc/portage/package.keywords
mkdir -p /etc/portage/package.use
# python-3.6 and python-3.5 are masked and considered unstable for some reason
echo "PYTHON_TARGETS=\"${GENTOO_PYTHON_TARGETS}\"" >> /etc/portage/make.conf
if [[ "${GENTOO_PYTHON_TARGETS}" == *"python3_6"* ]]; then
echo -e "-python_targets_python3_6\n-python_single_target_python3_6" >> /etc/portage/profile/use.stable.mask
echo 'dev-lang/python:3.6 ~amd64' >> /etc/portage/package.keywords/python
echo '~dev-python/setuptools-36.0.1 ~amd64' >> /etc/portage/package.keywords/python
echo '~dev-python/pyxattr-0.6.0 ~amd64' >> /etc/portage/package.keywords/python
echo '~sys-apps/kmod-24 ~amd64' >> /etc/portage/package.keywords/python
[[ ! -e /usr/lib64/libpython3.6m.so ]] && USE="-build" emerge -1q --jobs=2 dev-lang/python:3.6
fi
[[ "${GENTOO_PYTHON_TARGETS}" == *"python3_5"* ]] && [[ ! -e /usr/lib64/libpython3.5m.so ]] && USE="-build" emerge -1q --jobs=2 dev-lang/python:3.5
[[ "${GENTOO_PYTHON_TARGETS}" == *"python3_4"* ]] && [[ ! -e /usr/lib64/libpython3.4m.so ]] && USE="-build" emerge -1q --jobs=2 dev-lang/python:3.4
[[ "${GENTOO_PYTHON_TARGETS}" == *"python2_7"* ]] && [[ ! -e /usr/lib64/libpython2.7.so ]] && USE="-build" emerge -1q --jobs=2 dev-lang/python:2.7
# disable python in git if we have to, it only supports python-2.7
if [[ "${GENTOO_PYTHON_TARGETS}" != *"python2_7"* ]]; then
echo 'dev-vcs/git -python' >> /etc/portage/package.use/git
fi
# 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/pyparsing dev-python/appdirs dev-python/setuptools dev-python/certifi"
for PACKAGE in ${PYTHON_PACKAGES}; do
USE="-build" emerge -q --oneshot --jobs=2 --with-bdeps=y --update --newuse --deep --nodeps "${PACKAGE}"
done
USE="-build" emerge -q --oneshot --jobs=2 --with-bdeps=y --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
USE="-build" emerge -q --complete-graph=y --jobs=2 --update --newuse --deep --with-bdeps=y @world
# rebuild packages that might need it
USE="-build" emerge -q --jobs=2 --usepkg=n @preserved-rebuild
# remove unneeded packages
USE="-build" emerge --verbose=n --depclean
# rebuild packages that might have somehow depended on the unneeded packages
USE="-build" emerge -q --jobs=2 --usepkg=n @preserved-rebuild
unfix_shm