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2020-11-04 13:02:05 mietek parts (sid134071@gateway/web/irccloud.com/x-xdfehjuwjfwgiund) ()
2020-11-04 13:02:22 × GUEST94894 quits (~GUEST9489@124.123.107.91) (Read error: Connection reset by peer)
2020-11-04 13:02:25 <fendor> merijn, the server is a playground for students, so it compiles stuff, but if every student has to download this index, it is 300 * 800MB which sums up quiet quickly
2020-11-04 13:02:40 GUEST94946 joins (~GUEST9494@124.123.107.91)
2020-11-04 13:02:47 <fendor> but we solved it by having a read-only cabal store for every student, so that should be fine now
2020-11-04 13:03:22 <dcoutts> fendor: you could share the package cache, without sharing the store, if that helps
2020-11-04 13:03:31 <dcoutts> the download cache I mean
2020-11-04 13:04:00 <dcoutts> it might be useful for your use case to have two stores, a shared read-only one and a local writable one
2020-11-04 13:04:12 <fendor> dcoutts, yeah, that would solve the problem, too. Currently, we share both now, the store dir and index since students should not be able to download arbitrary packages anyways
2020-11-04 13:04:29 <fendor> or rather, not be able to do it by accident
2020-11-04 13:04:48 × vfaronov quits (~vfaronov@broadband-95-84-210-78.ip.moscow.rt.ru) (Client Quit)
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2020-11-04 13:05:11 vfaronov joins (~vfaronov@broadband-95-84-210-78.ip.moscow.rt.ru)
2020-11-04 13:05:40 <dcoutts> fendor: there's a --offline flag, which I think you can also use in the ~/.cabal/config
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2020-11-04 13:05:56 <dcoutts> just causes any download attempt to fail, doesn't change the solver
2020-11-04 13:06:13 <fendor> dcoutts, does that work with v2-*? did not seem to work for me when playing around with it
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2020-11-04 13:09:25 <merijn> fendor: I think it should? If not that sounds like a bug?
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2020-11-04 13:11:58 <fendor> merijn, hm, maybe it was a bug for cabal 3.0.0.0? I can try again later
2020-11-04 13:13:07 × ahmr88 quits (~ahmr88@cpc85006-haye22-2-0-cust131.17-4.cable.virginm.net) (Remote host closed the connection)
2020-11-04 13:15:39 machinedgod joins (~machinedg@207.253.244.210)
2020-11-04 13:16:56 <tomsmeding> quick question: does this datatype already exist in a commonly-used library? data PairOf f g t = PairOf (f t) (g t)
2020-11-04 13:17:51 raehik joins (~raehik@cpc95906-rdng25-2-0-cust156.15-3.cable.virginm.net)
2020-11-04 13:18:25 <dminuoso> tomsmeding: Yes.
2020-11-04 13:18:34 <dminuoso> It's in base somewhere
2020-11-04 13:18:58 whald joins (~trem@2a02:810a:8100:11a6:69c1:660a:2b51:2055)
2020-11-04 13:18:59 <dminuoso> Err GHC
2020-11-04 13:19:00 <dminuoso> tomsmeding: https://hackage.haskell.org/package/base-4.14.0.0/docs/GHC-Generics.html#t::-43-:
2020-11-04 13:19:01 <tomsmeding> that's what I was hoping with "commonly-used library" :p
2020-11-04 13:19:13 <tomsmeding> oh right
2020-11-04 13:19:20 <dminuoso> Oh and :*:
2020-11-04 13:19:21 <tomsmeding> well :*: then
2020-11-04 13:19:25 × Lycurgus quits (~niemand@98.4.97.110) (Quit: Exeunt)
2020-11-04 13:19:41 <dminuoso> tomsmeding: I do recall we had something outside generics as well
2020-11-04 13:19:44 <tomsmeding> a Generics import will look decidedly strange in this file, but I guess the semantics work :p
2020-11-04 13:19:58 <dminuoso> tomsmeding: http://hackage.haskell.org/package/base-4.14.0.0/docs/Data-Functor-Product.html
2020-11-04 13:19:59 × `slikts quits (~nelabs@wikipedia/reinis) (Ping timeout: 272 seconds)
2020-11-04 13:20:00 <dminuoso> There
2020-11-04 13:20:09 <dminuoso> That's what I wanted :)
2020-11-04 13:20:12 nbloomf joins (~nbloomf@76.217.43.73)
2020-11-04 13:20:19 <tomsmeding> ah that's neater
2020-11-04 13:20:22 <tomsmeding> thanks!
2020-11-04 13:20:57 tomsmeding notes in my memory that Data.Functor.Sum also exists
2020-11-04 13:21:46 <tomsmeding> `Pair` collides with a constructor I already have in scope lol
2020-11-04 13:22:28 <dminuoso> Qualified imports is a thing.
2020-11-04 13:23:42 fendor_ joins (~fendor@77.119.128.11.wireless.dyn.drei.com)
2020-11-04 13:24:02 <tomsmeding> which is what I'll do :)
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2020-11-04 13:27:12 <fendor> merijn, https://paste.tomsmeding.com/O4uOK0Xv looks wrong to me? Ignore the permission errors, unless they hide the issue, they are caused by the read-only cabal store, so downloading is forbidden
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2020-11-04 13:28:34 <merijn> Does it actually go to the network?
2020-11-04 13:29:08 <fendor> afaict yes
2020-11-04 13:29:13 <merijn> hmm
2020-11-04 13:29:17 <merijn> Then I dunno
2020-11-04 13:29:24 × merijn quits (~merijn@83-160-49-249.ip.xs4all.nl) (Quit: restart)
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2020-11-04 13:30:30 <Franciman> hi, dost anybody use gi-gtk-declarative?
2020-11-04 13:30:51 <fendor> so, locally, I can reproduce it by invoking `cabal repl --offline -b hpath` where hpath is a package I haven't downloaded yet. https://paste.tomsmeding.com/RFlwkwVP
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2020-11-04 13:40:01 <fendor> maybe the message is just wrong, might play around with it later
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2020-11-04 13:51:42 <tomsmeding> tcpdump/wireshark, or strace | grep "connect"?
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