[Nix-dev] Changes in cabal2nix version 20150525
Hi folks, I'd like to point out that cabal2nix version 20150525 -- which was added in revision d808f5b3e669 -- brings three important changes you might want to know about: 1) Output generated by cabal2nix --shell now works for both nix-shell and nix-build. In other words, you can execute $ nix-build shell.nix to build your Haskell project with Nix. If that build fails with strange compiler errors, then clear out the dist/ directory [1]. 2) The generated shell.nix expression accepts an argument called compiler that chooses the GHC version to use for the build. For example: $ nix-shell --argstr compiler ghc784 $ nix-build shell.nix --argstr compiler ghc763 The default compiler is ghc7101. To see the list of available compilers, run: $ nix-env -f nixpkgs -qaP -A haskell.compiler 3) Files generated by cabal2nix no longer refer to haskellngPackages. That name is still valid, but it's obsolete now that Haskell NG has replaced the old infrastructure [2]. Best regards, Peter [1] https://github.com/NixOS/cabal2nix/issues/112 [2] https://github.com/NixOS/nixpkgs/blob/c0c82ea2ebbcf0632260a931cf832cac1c8a014e/pkgs/top-level/all-packages.nix#L14429-14430 ___ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Using R with Bioconductor
Hi Jeffrey, https://github.com/NixOS/nixpkgs/compare/master...jefdaj:bioc-pullreq this looks good to me. Thank you very much for figuring this out! The only thing I'd prefer is to have packages from CRAN and Bioconductor in two separate files so that it's possible to re-generate them separately. Both files should be imported into one attribute set called rPackages, though, that's clear. There might be conflicts between the Bioconductor and CRAN release schedules. I don't believe there's any release schedule. People just upload new packages to the repository whenever they've finished a new version. I doubt that's a coordinated effort. Best regards, Peter ___ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev
[Nix-dev] Documenting nixpkgs.config options
Contrary to nixos *module* options, which are self-documenting at http://nixos.org/nixos/options.html, there is no equivalent documentation for options available in nixpkgs.config. This is unfortunate, because a recent blog post (http://blog.lastlog.de/posts/useflags_in_nixos/) makes the very good point of framing them as a gentoo - useflag equivalent. Thus users wanting to customize packages, are left with the option of diving into the source, or hunting for wiki pages about their target package, e.g. https://nixos.org/wiki/Enable_Browser_Plugins https://github.com/NixOS/nixpkgs/issues/7446 is clearly relevant, however, I'm primarily concerned with documentation right now, since I want users to find the new wine options in the upcoming release. Manually compiling a wiki page might work for now, but that will eventually get outdated. Maintaining available flags in per-package metadata might be better, but still risks running out of sync with careless commits. Declaring a schema (a'la nixos-options), however, feels a little heavy handed for nixpkgs.config. Has there been work towards this? How should this be done? ___ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Using R with Bioconductor
Sure that sounds good. It would make storing the mirror type for each package unneccesary too. I'll see if I can set it up later today so the script takes 'cran' or 'bioc' as an argument and reads/writes cran-packages.nix or bioc-packages.nix, then default.nix can read both sets and map the right urls onto them before combining. Jeff On Tue, 26 May 2015 10:35:21 +0200 Peter Simons sim...@cryp.to wrote: Hi Jeffrey, https://github.com/NixOS/nixpkgs/compare/master...jefdaj:bioc-pullreq this looks good to me. Thank you very much for figuring this out! The only thing I'd prefer is to have packages from CRAN and Bioconductor in two separate files so that it's possible to re-generate them separately. Both files should be imported into one attribute set called rPackages, though, that's clear. There might be conflicts between the Bioconductor and CRAN release schedules. I don't believe there's any release schedule. People just upload new packages to the repository whenever they've finished a new version. I doubt that's a coordinated effort. Best regards, Peter ___ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev ___ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev
