- Libraries - Haskell.org

characterization of subset of Monads that respect tail calls?
by Carter Schonwald 28 Sep '22

28 Sep '22

Hello everyone! a recent conversation I has having led to an interesting question: is there a good interface or something for Monads which guarantee tail calls are tail calls? (ideally via a stronger api assumption for tail position computations in a monad rather than "trustme" style api contracts) thx -Carter

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Maintaining lambdabot and dice
by Naïm Favier 27 Sep '22

27 Sep '22

I'd like to take over maintainership of the dice and lambdabot packages so that I can take care of GHC 9 support (https://github.com/lambdabot/dice/pull/2 and https://github.com/lambdabot/lambdabot/pull/204) The GitHub repo has been inactive since November 2021. I have contacted the current maintainer on IRC, where he is active, but he hasn't answered. Cheers

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Seeking a new maintainer for Edison
by Rob 11 Sep '22

11 Sep '22

I have for some time now been the nominal maintainer of the Edison collection of libraries, which consist of a variety of data-structure implementations originally derived from Chris Okasaki’s book “Purely Functional Data Structures.” See: https://hackage.haskell.org/package/EdisonAPI https://hackage.haskell.org/package/EdisonCore This library has recently received less attention than it probably deserves as I do not have the time or energy to devote to it. As such, I’m looking for a new maintainer who is willing to take up the mantle. Please reach out if you are interested in taking over. Cheers, Rob

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Package takeover request for fgl
by Troels Henriksen 30 Aug '22

30 Aug '22

I am requesting to take over the package fgl: https://hackage.haskell.org/package/fgl It is currently broken in GHC 9.4, which is fixed by this pull request: https://github.com/haskell/fgl/pull/104 The maintainer Ivan Miljenovic has not been active on GitHub since January. I wrote Ivan on August 12th offering to help out with maintenance, but have received no response yet. The package is part of the 'haskell' organisation on GitHub. I don't know whether that is supposed to signify some kind of "community maintenance" (it appears Ivan is not the original author of fgl), but I would eventually need Hackage upload rights as well.

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filepath-1.4.100.0 released
by Julian Ospald 16 Jul '22

16 Jul '22

Hi, this release implements support for the "abstract filepath proposal" (AFPP). There are no breaking changes in the existing API. Hackage: https://hackage.haskell.org/package/filepath-1.4.100.0 More information can be found on my blog: https://hasufell.github.io/posts/2022-06-29-fixing-haskell-filepaths.html Cheers

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Takeover of misfortune
by Naïm Favier 15 Jun '22

15 Jun '22

Hi, I'd like to take over maintainership of the misfortune package. I am trying to port lambdabot to GHC 9 (see https://github.com/lambdabot/lambdabot/pull/204) and misfortune is one of the blockers. There is a PR to fix it (https://github.com/mokus0/misfortune/pull/5) but the repository hasn't been updated in seven years. I emailed the maintainer on 2022-03-27 but they haven't answered yet. Naïm Favier Hackage/GitHub: ncfavier IRC: ncf

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Package takeover request for rapid
by Markus Läll 19 May '22

19 May '22

Hi I would like to take over https://hackage.haskell.org/package/rapid The author of the package Ertugrul Söylemez, once an active member of the community perhaps best known for netwire, passed away in 2018. [1] The work required for the package thus far, and for which I've kept a fork for, is to bump version bounds as GHCs progress. [1] https://github.com/esoeylemez/rapid/pull/2#issuecomment-427065739 -- Markus Läll

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unix maintenance
by Julian Ospald 18 May '22

18 May '22

Hi, I hereby request to be added as a unix maintainer. My past and current involvement with unix package and similar API can be seen here: * https://github.com/haskell/unix/commit/c7d88b3612fdf74a7964a670d6e79128f97f… * https://github.com/haskell/unix/pull/202 * https://github.com/haskell/unix/pull/110 * https://hackage.haskell.org/package/hpath-posix * https://hackage.haskell.org/package/streamly-posix I think it can be seen from the issue tracker that it's understaffed. Cheers, Julian

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Bad default bitraverse
by Keith 07 Apr '22

07 Apr '22

The default `bitraverse` implementation should be removed. The default `bitraverse` is `bitraverse f g = bisequenceA . bimap f g`. But `bisequenceA` is an alias of `bisequence`, which in turn is `bitraverse id id`. Neither `bisequence` nor `bisequenceA` is a Bitraversable method, so they can't have alternative definitions. Sorry if this has already been mentioned. Sent from my phone with K-9 Mail.

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[ANN] fresnel initial release
by Rob Rix 21 Feb '22

21 Feb '22

Hello! I’m pleased to announce the initial release of fresnel, an optics library optimizing for few dependencies, familiar tools, and decent error messages, without sacrificing functionality. fresnel is available at: - https://hackage.haskell.org/package/fresnel-0.0.0.0 - https://github.com/fresnel/fresnel/releases/tag/0.0.0.0 Feature requests, issues, and other feedback are welcome at https://github.com/fresnel/fresnel/issues Overview: - Most of the optic types from lens and optics. No Indexed*, however. - Compose optics using . much like in lens. - Decent error messages, much like in optics. - Few dependencies. I’m considering pulling At/Ixed into a new package to reduce the dependency list that much more, out of a desire to “pay for what you use.” I’m considering divesting the package of the profunctors dependency for much the same reason. - Named for a real-world optic which has saved countless lives by its use in lighthouses around the world. Best regards, Rob

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