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Am Freitag, 22. Juli 2016, 15:57:36 schrieb Ciaran McCreesh: |
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> > > Wrong. PMS specifically requests you to account for such a |
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> > > possibility. |
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> > |
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> > Common sence must prevail over formal approaches. While PMS is |
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> > great, it is not perfect in all possible aspects, and this one is |
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> > one of them. |
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[snipping irrelevant blather] |
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> Slots are not the only way in which you can end up with multiple |
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> installed versions of the same package. Another way is if there's a |
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> fatal error during certain parts of the upgrade process. |
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1) If a package only ever had one slot, it cannot ever have two versions |
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installed at the same time. That guarantee (of only ever one slot) can be |
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given for the portage tree (sic). Obviously it doesn't work for overlays, |
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but there are many things we don't care about for overlays. [A] |
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2) If a package manager leaves two versions of a non-slotted package |
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"installed" somehow, that package manager is fundamentally broken and its |
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author should forever refrain from specifying anything. It's not our job to |
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work around Paludis failure modes. [B] |
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[A] Let's say there are overlays which package StarOffice, Go-OOO and some |
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other random OOO fork. Do I have to block them all because of file collisions |
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then? |
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[B] The package manager could be broken to leave some random files on the |
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system too... maybe we need some more blockers or specific error handling in |
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all ebuilds? |
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- -- |
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|
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Andreas K. Huettel |
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Gentoo Linux developer |
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dilfridge@g.o |
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http://www.akhuettel.de/ |
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