Add a _compat_upgrade.binpkg_multi_instance script that the ebuild can call in pkg_preinst in order to maintain a backward-compatible FEATURES=-binpkg-multi-instance default on existing installs where enabling binpkg-multi-instance could cause disruption.
Bug: https://bugs.gentoo.org/772785 Signed-off-by: Zac Medico <zmed...@gentoo.org> --- .../_compat_upgrade/binpkg_multi_instance.py | 33 +++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 lib/portage/_compat_upgrade/binpkg_multi_instance.py diff --git a/lib/portage/_compat_upgrade/binpkg_multi_instance.py b/lib/portage/_compat_upgrade/binpkg_multi_instance.py new file mode 100644 index 000000000..bfeb72baa --- /dev/null +++ b/lib/portage/_compat_upgrade/binpkg_multi_instance.py @@ -0,0 +1,33 @@ +# Copyright 2021 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +import portage +from portage import os +from portage.const import GLOBAL_CONFIG_PATH + +COMPAT_FEATURES = 'FEATURES="${FEATURES} -binpkg-multi-instance"' + + +def main(): + """ + If the current installation is still has binpkg-multi-instance + disabled, then patch make.globals inside ${ED} to maintain backward + compatibility. This is intended to be called from the ebuild as + follows: + + pkg_preinst() { + python_setup + env -u FEATURES + PYTHONPATH="${D%/}$(python_get_sitedir)${PYTHONPATH:+:${PYTHONPATH}}" \ + "${PYTHON}" -m portage._compat_upgrade.binpkg_multi_instance || die + } + """ + if 'binpkg-multi-instance' not in portage.settings.features: + portage.output.EOutput().einfo('Setting make.globals default {} for backward compatibility'.format(COMPAT_FEATURES)) + config_path = os.path.join(os.environ['ED'], GLOBAL_CONFIG_PATH.lstrip(os.sep), 'make.globals') + with open(config_path, 'at') as f: + f.write("{}\n".format(COMPAT_FEATURES)) + + +if __name__ == '__main__': + main() -- 2.26.2
