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Nix Packages collection & NixOS
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Problem installing hfmt #31568

Closed srghma closed 1 year ago

srghma commented 6 years ago

Issue description & Steps to reproduce

 ✘  ~/.config/dotfiles   master ●✚  nix-shell --pure -p haskellPackages.hfmt
...
Warning: This package indirectly depends on multiple versions of the same
package. This is highly likely to cause a compile failure.
package stylish-haskell-0.8.1.0 requires haskell-src-exts-1.18.2
package hlint-2.0.9 requires haskell-src-exts-1.18.2
package hindent-5.2.3 requires haskell-src-exts-1.19.1
package hfmt-0.1.1 requires haskell-src-exts-1.19.1
....
*** abort because of serious configure-time warning from Cabal

What I have to change here?

  nixpkgs.config.packageOverrides = super: {
    haskellPackages = super.haskellPackages.override {
      overrides = self: super_: {
        "hfmt" = super_."hfmt".overrideDerivation (attrs: rec {
            ....
        });
      };
    };
  };
ryantm commented 6 years ago

hfmt still does not build on ghc843 or ghc861.

ryantm commented 6 years ago

@srghma Is nixfmt related to hfmt?

gilligan commented 5 years ago

I just wanted to give hfmt a try and then ended up here. On master it currently fails because of conflicting dependencies of haskell-src-exts: 

    This package indirectly depends on multiple versions of the same package. This is very likely to cause a compile failure.
      package stylish-haskell (stylish-haskell-0.9.2.1-9XVxKbqExzZIs60m7h6SJq) requires haskell-src-exts-1.20.3-2fryh11Yuz7lCtLeeIQn8
      package hindent (hindent-5.2.7-T34fxFcJkHDcL33Jd8JpN) requires haskell-src-exts-1.20.3-2fryh11Yuz7lCtLeeIQn8
      package hlint (hlint-2.1.12-7gLWLmnjZwq2QaEd4NwRlO) requires haskell-src-exts-1.21.0-1MqMUIJU7y29AVS9NHxlR4
      package hfmt (hfmt-0.2.3.1) requires haskell-src-exts-1.21.0-1MqMUIJU7y29AVS9NHxlR4
      package haskell-src-exts-util (haskell-src-exts-util-0.2.4-JnBKmaPXKhRJ6qhckXKvij) requires haskell-src-exts-1.21.0-1MqMUIJU7y29AVS9N

I did try to ignore the error using allowInconsistentDependencies but it does indeed yield a compile error.

infinisil commented 5 years ago

This overlay fixes it for now (tested on 19.03), put this in ~/.config/nixpkgs/overlays/hfmt-fix.nix:

self: super: let
  hlib = super.haskell.lib;
in {

  haskellPackages = super.haskellPackages.override (old: {
    overrides = super.lib.composeExtensions (old.overrides or (self: super: {}))
      (hself: hsuper: {

        hfmt = hlib.dontCheck (hlib.overrideCabal (hsuper.hfmt.override {
          stylish-haskell = hlib.doJailbreak (hself.stylish-haskell.override {
            haskell-src-exts = hself.haskell-src-exts_1_21_0;
          });
          hindent = hlib.appendPatch (hself.hindent.override {
            haskell-src-exts = hself.haskell-src-exts_1_21_0;
          }) (super.fetchpatch {
            # From https://github.com/chrisdone/hindent/pull/537
            # to fix with haskell-src-exts >=1.21
            url = "https://github.com/felixonmars/hindent/commit/ce033ca1087b6155315eefe5a3e8ba6f29d1b76c.patch";
            sha256 = "0rpdhf2qmi6i37s88qb4z2lj2zidq2k5q38xgagffx2y6kcyphkz";
          });
        }) (drv: {
          broken = false;
        }));

      });
  });

}
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cdepillabout commented 1 year ago

As far as I know, people are generally not using hfmt anymore, so I'll go ahead and close. If you're still stuck on this, feel free to post a comment and we can re-open.