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On 1/15/21 6:47 PM, Matt Turner wrote: |
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> This set is the upgradable packages for which the highest visible |
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> version has a different subslot than the currently installed version. |
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> |
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> The primary purpose of this feature is for use in catalyst builds. We |
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> update the "seed" stage3 before using it to build a new stage1. |
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> |
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> Updating the entire stage is expensive and unnecessary (since we're |
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> going to build the latest packages in stage1 and then rebuild everything |
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> in stage3). |
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> |
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> What we definitely do need to update in the original stage3 however, is |
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> any package that would trigger a subslot rebuild. |
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> |
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> For example: gcc links with libmpfr.so from dev-libs/mpfr. mpfr's SONAME |
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> changes from libmpfr.so.4 (SLOT="0/4") to libmpfr.so.6 (SLOT="0/6"). If |
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> the seed stage's dev-libs/mpfr is not updated before emerging gcc, gcc |
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> will link with libmpfr.so.4, but the latest version of dev-libs/mpfr |
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> will be built and libmpfr.so.6 included into the stage1. Since the old |
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> libmpfr.so.4 is not included in the stage1, gcc will not work, breaking |
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> subsequent stage builds. |
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> |
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> Our current options to update the seed are too large a hammer (e.g., |
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> "--update --deep --newuse @world" or "--update --deep --newuse |
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> --complete-graph --rebuild-if-new-ver gcc") and spend too much time |
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> updating seed stages for no gain beyond updating only packages for whom |
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> the subslot has changed. |
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> |
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> With this set, catalyst will likely use |
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> |
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> emerge @changed-subslot --ignore-built-slot-operator-deps y |
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> |
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> to update the seed stage. |
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> |
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> Thank you to Zac Medico for showing me how to do this. |
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> |
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> Bug: https://bugs.gentoo.org/739004 |
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> Signed-off-by: Matt Turner <mattst88@g.o> |
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> --- |
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> cnf/sets/portage.conf | 5 +++++ |
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> lib/portage/_sets/dbapi.py | 39 +++++++++++++++++++++++++++++++++++++- |
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> 2 files changed, 43 insertions(+), 1 deletion(-) |
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|
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Look good. Thanks! Merged: |
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|
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https://gitweb.gentoo.org/proj/portage.git/commit/?id=6c70596d6d6382160490bb16ef559ccfdd982fae |
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-- |
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Thanks, |
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Zac |
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