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2021-03-08 08:18:10 nineonine joins (~nineonine@2604:3d08:7785:9600:ad8c:89aa:bf10:9556)
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2021-03-08 08:37:33 <arrowsvc_> Before cabal-install 3.4 I was able to unpack a dependency library right into my project's root and `cabal new-build` was picking it up.
2021-03-08 08:37:43 <arrowsvc_> This doesn't seem to be the case anymore with 3.4
2021-03-08 08:38:04 <arrowsvc_> Was this feature removed or it is hidden behind some flag?
2021-03-08 08:38:20 coot joins (~coot@37.30.55.141.nat.umts.dynamic.t-mobile.pl)
2021-03-08 08:38:22 <Uniaika> arrowsvc_: what command exactly are you typing?
2021-03-08 08:38:34 <arrowsvc_> cabal new-build
2021-03-08 08:38:49 <Uniaika> heya coot, sorry for the latency on your Haddock PR, we had to make a release yesterday
2021-03-08 08:38:55 <Uniaika> arrowsvc_: before that?
2021-03-08 08:39:16 <Uniaika> arrowsvc_: you don't use `cabal unpack`?
2021-03-08 08:39:21 encod3 joins (~encod3@45-154-157-94.ftth.glasoperator.nl)
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2021-03-08 08:39:54 <arrowsvc_> Before that I fetch vector-0.12.2.0.tar.gz manually and unpack it into my project's dir.
2021-03-08 08:40:26 <arrowsvc_> Nope, I have to use `fetch` utility, but this shouldn't matter.
2021-03-08 08:40:28 _ht joins (~quassel@82-169-194-8.biz.kpn.net)
2021-03-08 08:41:21 <Uniaika> arrowsvc_: what's the URL you're using for vector?
2021-03-08 08:42:36 <arrowsvc_> Hackage one: https://hackage.haskell.org/package/vector-0.12.2.0/vector-0.12.2.0.tar.gz
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2021-03-08 08:48:56 <arrowsvc_> Hmmm, I now tried producing this using cabal get and it worked.
2021-03-08 08:49:29 <arrowsvc_> I also did not wipe ~/.cabal before running `cabal new-build` as I do in my case.
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2021-03-08 09:00:20 <arrowsvc_> -_\ wait, I used old cabal-install
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2021-03-08 09:08:49 <arrowsvc_> Aha. So the problem is with wiping ~/.cabal
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2021-03-08 09:34:17 <Gurkenglas> https://hackage.haskell.org/package/base-4.14.1.0/docs/GHC-Generics.html#g:12 <- "Note that this encoding strategy may not be reliable across different versions of GHC." oh man so in order to translate between save files for versions compiled with different versions of ghc you'd need to write an entirely separate de&serializer? :S
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2021-03-08 09:39:53 <Gurkenglas> "But the type argument is never being used. This may be changed at some point in the future." is obsolete with "What's different is that we now use Par1 to refer to the parameter" right?
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2021-03-08 09:46:05 <merijn> Gurkenglas: Repeat my mantra with me
2021-03-08 09:46:27 <merijn> Gurkenglas: "If you care about future stability, you *always* have to write explicit (de)serialisers"
2021-03-08 09:47:06 <merijn> Gurkenglas: The solution is to not use generics for (de)serialisation at all, but use something deterministic, so that "which GHC version was used" becomes irrelevant
2021-03-08 09:48:01 <Gurkenglas> merijn, I don't disagree, but why is there a serialization tutorial on GHC.Generics?
2021-03-08 09:48:40 <merijn> The simplest example the person writing it could think off that shows all features?
2021-03-08 09:48:42 <Gurkenglas> (for people who use it for communication between two programs that are always compiled immediately before rather than savefiles, I suppose)
2021-03-08 09:49:52 <merijn> Gurkenglas: Generic is super confusing without an example and "serialising some stuff" is an easy/obvious answer anyone understands

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