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On Mon, 5 Aug 2013 12:22:32 -0400 |
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Alexis Ballier <aballier@g.o> wrote: |
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> On Mon, 5 Aug 2013 17:13:49 +0100 |
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> Ciaran McCreesh <ciaran.mccreesh@××××××××××.com> wrote: |
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> > On Tue, 06 Aug 2013 02:03:28 +1000 |
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> > Michael Palimaka <kensington@g.o> wrote: |
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> > > > How often does this situation even come up? If 9/10 times the |
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> > > > libraries are set up as maintainers expect them to be, it is |
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> > > > probably better to deal with the odd unnecessary rebuild until |
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> > > > somebody spots it, rather than going without support for slot |
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> > > > operator deps. |
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> > > |
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> > > With respect, "good enough" is not a very high standard to aim |
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> > > for. In my opinion, adding unnecessary subslot dependencies is no |
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> > > different to adding overly-wide dependencies. |
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> > |
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> > There's a world of difference between a horrible breakage and an |
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> > occasional unnecessary compile. If users are concerned about how |
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> > they spend their CPU time, they're using the wrong distribution. |
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> |
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> there is something wrong in the way its done if there are |
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> 'occasional unnecessary compiles' |
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|
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Not really. There's a tradeoff between dependencies that are |
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occasionally too strict, and dependencies that are horribly |
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complicated (see "subslot dictionaries"). |
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|
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Gentoo already favours lots of unnecessary recompiling over additional |
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complexity. For example, for many revbumps, it would be possible to |
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only rebuild a small part of the package and replace a few files rather |
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than the whole thing. But writing ebuilds capable of doing so would |
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involve more developer work, and would be more prone to screwups, so |
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such a feature isn't offered. |
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|
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So all this fuss over "unnecessary compiles" is misplaced. Gentoo |
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simply isn't the right distribution to use if minimising compile time |
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is a goal. |
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|
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> 'horrible breakage' is mitigated by preserve-libs and running |
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> @preserved-rebuild as soon as possible has the same end result |
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> avoiding useless rebuilds. |
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|
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But preserve-libs introduces breakages and security holes. The point of |
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slot operator dependencies is to replace that with a reliable feature |
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that doesn't rely upon guesswork and voodoo. |
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|
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-- |
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Ciaran McCreesh |
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