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On Fri, 7 Jul 2017 12:48:04 -0400 |
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NP-Hardass <NP-Hardass@g.o> wrote: |
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> |
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> There is actually a huge functional difference between the two that |
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> you are missing here. A meta package defines its dependencies in full |
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> dependency syntax. This means you can specify versions, USE flag |
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> dependencies, make packages dependent on USE flags, etc. A package |
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> set is just a list of packages (potentially constrained by version. |
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> TTBOMK, there is no inclusion of any USE flag functionality in sets. |
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> Additionally, let's say you have a more complicated dependency like |
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> || ( A B ), I don't think there is a way to describe that in a |
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> package set at all. |
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All valid points, but there maybe times when such is not needed. |
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You cannot really do any of that easily via a profile either. You just |
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have packages file in a profile. You can use the other stuff, but I am |
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talking about sets. Just as packages are listed in a packages file in a |
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profile. Being able to list a package set, vs those same packages. |
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There is no difference there. |
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> I'm not sure I see the merit in pushing for package sets in the bulk |
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> of cases for this reason. Maybe there is some scenario where package |
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> sets are a better option, but you haven't enumerated what that might |
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> be (and I'm not really interested in brainstorming until I come up |
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> with one, so I'll wait for one frmo someone else) |
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Not sure I need to show a case example of where sets are better than |
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meta packages. Its more I want to use sets and I would like to be able |
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to include those package sets in a profile. |
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> Of course, my sets knowledge is a little limited compared to some |
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> people, so if something I've said about package sets is incorrect, |
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> please feel free to correct it. |
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You cannot remove all packages ( short of dep clean ) or re-emerge all |
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packages from a meta ebuild easily. You can from a set. |
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Sets do have their uses. I think they are not used much for a variety |
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of reasons, but likely could be used more. |
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-- |
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William L. Thomson Jr. |
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