Package 'yi' is broken

[chris-martin]

nix-env -i yi

Unstable:

configuring
configureFlags: --verbose --prefix=/nix/store/552v9wmqci5dkk9vmljl8xp7vc8c01iq-yi-0.14.1 --libdir=$prefix/lib/$compiler --libsubdir=$pkgid --docdir=/nix/store/7i4fjxrj22gpcmpjdvx0p10nl1shv7jv-yi-0.14.1-doc/share/doc --with-gcc=gcc --package-db=/tmp/nix-build-yi-0.14.1.drv-0/package.conf.d --ghc-option=-optl=-Wl,-rpath=/nix/store/552v9wmqci5dkk9vmljl8xp7vc8c01iq-yi-0.14.1/lib/ghc-8.0.2/yi-0.14.1 --ghc-option=-j1 --disable-split-objs --disable-library-profiling --disable-profiling --enable-shared --disable-coverage --enable-library-vanilla --enable-executable-dynamic --enable-tests --ghc-option=-split-sections -fpango -fvty
Configuring yi-0.14.1...
Setup: Encountered missing dependencies:
yi-core >=0.14.1,
yi-misc-modes >=0.14.1,
yi-mode-haskell >=0.14.1,
yi-mode-javascript >=0.14.1
builder for ‘/nix/store/xv0g9bwnpkkj061nz651pbzh38w2pc0k-yi-0.14.1.drv’ failed with exit code 1
cannot build derivation ‘/nix/store/2spv7379wvxgf5mgm8aphp97kjx2rkb9-yi-custom.drv’: 1 dependencies couldn't be built
error: build of ‘/nix/store/2spv7379wvxgf5mgm8aphp97kjx2rkb9-yi-custom.drv’ failed

17.03:

configuring
configureFlags: --verbose --prefix=/nix/store/d642y8j935rlkpa5zb2786y49bhbfrdm-yi-0.14.0 --libdir=$prefix/lib/$compiler --libsubdir=$pkgid --with-gcc=gcc --package-db=/tmp/nix-build-yi-0.14.0.drv-0/package.conf.d --ghc-option=-optl=-Wl,-rpath=/nix/store/d642y8j935rlkpa5zb2786y49bhbfrdm-yi-0.14.0/lib/ghc-8.0.2/yi-0.14.0 --ghc-option=-j1 --disable-split-objs --disable-library-profiling --disable-profiling --enable-shared --disable-coverage --enable-library-vanilla --enable-executable-dynamic --enable-tests --ghc-option=-split-sections -fpango -fvty
Configuring yi-0.14.0...
Setup: Encountered missing dependencies:
yi-core >=0.14.0,
yi-misc-modes >=0.14.0,
yi-mode-haskell >=0.14.0,
yi-mode-javascript >=0.14.0
builder for ‘/nix/store/1d4akgb89m1jrmcs1dkmjbzl5j7cghqg-yi-0.14.0.drv’ failed with exit code 1
cannot build derivation ‘/nix/store/bj1whah4sg57gzynaviy4adikwfki66g-yi-custom.drv’: 1 dependencies couldn't be built
error: build of ‘/nix/store/bj1whah4sg57gzynaviy4adikwfki66g-yi-custom.drv’ failed

[chris-martin]

I'm told this can be fixed with a handful of Haskell package overrides. https://twitter.com/taktoa1/status/896915704804290560

[taktoa]

For posterity:

yi-core            = super.yi-core_0_14_0;
yi-frontend-vty    = super.yi-frontend-vty_0_14_0;
yi-fuzzy-open      = super.yi-fuzzy-open_0_14_0;
yi-ireader         = super.yi-ireader_0_14_0;
yi-keymap-cua      = super.yi-keymap-cua_0_14_0;
yi-keymap-emacs    = super.yi-keymap-emacs_0_14_0;
yi-keymap-vim      = super.yi-keymap-vim_0_14_0;
yi-language        = super.yi-language_0_14_0;
yi-misc-modes      = super.yi-misc-modes_0_14_0;
yi-mode-haskell    = super.yi-mode-haskell_0_14_0;
yi-mode-javascript = super.yi-mode-javascript_0_14_0;
yi-snippet         = super.yi-snippet_0_14_0;

[thomastjeffery]

Is this because Nix derivations ignore that versions are a thing that exists?

How do you go about using these "overrides"?

[taktoa]

@thomastjeffery

haskellPackages.override {
  overrides = self: super: {
    yi-core            = super.yi-core_0_14_0;
    yi-frontend-vty    = super.yi-frontend-vty_0_14_0;
    yi-fuzzy-open      = super.yi-fuzzy-open_0_14_0;
    yi-ireader         = super.yi-ireader_0_14_0;
    yi-keymap-cua      = super.yi-keymap-cua_0_14_0;
    yi-keymap-emacs    = super.yi-keymap-emacs_0_14_0;
    yi-keymap-vim      = super.yi-keymap-vim_0_14_0;
    yi-language        = super.yi-language_0_14_0;
    yi-misc-modes      = super.yi-misc-modes_0_14_0;
    yi-mode-haskell    = super.yi-mode-haskell_0_14_0;
    yi-mode-javascript = super.yi-mode-javascript_0_14_0;
    yi-snippet         = super.yi-snippet_0_14_0;
  };
}

[thomastjeffery]

Where does this magical code go?

[taktoa]

It can go in various places, but the easiest is to add this to ~/.config/nixpkgs/config.nix:

{
  packageOverrides = pkgs: {
    haskellPackages = pkgs.haskellPackages.override {
      overrides = self: super: {
        yi-core            = super.yi-core_0_14_0;
        yi-frontend-vty    = super.yi-frontend-vty_0_14_0;
        yi-fuzzy-open      = super.yi-fuzzy-open_0_14_0;
        yi-ireader         = super.yi-ireader_0_14_0;
        yi-keymap-cua      = super.yi-keymap-cua_0_14_0;
        yi-keymap-emacs    = super.yi-keymap-emacs_0_14_0;
        yi-keymap-vim      = super.yi-keymap-vim_0_14_0;
        yi-language        = super.yi-language_0_14_0;
        yi-misc-modes      = super.yi-misc-modes_0_14_0;
        yi-mode-haskell    = super.yi-mode-haskell_0_14_0;
        yi-mode-javascript = super.yi-mode-javascript_0_14_0;
        yi-snippet         = super.yi-snippet_0_14_0;
      };
    };
  };
}

[thomastjeffery]

OK, that mostly worked, except now I have the missing dependency:

yi-rope >=0.7.0.0 && <0.9

A quick search of the huge generated hackage-packages.nix shows that yi-rope is version 0.9, and yi-rope_0_10 is 0.10.

Is there a way I can get <0.9?

[taktoa]

Which package has that missing dependency? Also, for future questions like this, I recommend asking on #nixos on FreeNode.

[thomastjeffery]

Thanks for the help!

I probably should have mentioned, I'm using NixOS 17.09.

The package dependent on yi-rope is yi-core-0.15.0.

Specifically, version 0.15.0 is incompatible with yi-rope >=0.9.

I tried again using the master channel instead of 17.09, and had the overrides point to package_16_0, and added the override yi-rope-0_10.

my ~/.config/nixpkgs/config.nix now looks like:

{
  packageOverrides = pkgs: {
    haskellPackages = pkgs.haskellPackages.override {
      overrides = self: super: {
        yi-core            = super.yi-core_0_16_0;
        yi-frontend-vty    = super.yi-frontend-vty_0_16_0;
        yi-fuzzy-open      = super.yi-fuzzy-open_0_16_0;
        yi-ireader         = super.yi-ireader_0_16_0;
        yi-keymap-cua      = super.yi-keymap-cua_0_16_0;
        yi-keymap-emacs    = super.yi-keymap-emacs_0_16_0;
        yi-keymap-vim      = super.yi-keymap-vim_0_16_0;
        yi-language        = super.yi-language_0_16_0;
        yi-misc-modes      = super.yi-misc-modes_0_16_0;
        yi-mode-haskell    = super.yi-mode-haskell_0_16_0;
        yi-mode-javascript = super.yi-mode-javascript_0_16_0;
        yi-snippet         = super.yi-snippet_0_16_0;
        yi-rope            = super.yi-rope_0_10;
      };
    };
  };
}

I'll let you know if this build works.

I still think it's ridiculous that we even have version numbers in package names in the first place. It's a messy and confusing workaround.

[thomastjeffery]

That seems to have worked!

[noughtmare]

I found another terrible problem, yi-dynamic-configuration is version 0.16.0 on nixpkgs, and the rest of the yi related packages are still on 0.14 so that causes major breakage, because yi-dynamic-configuration-0.16.0 requires yi-core-0.16.0 which is not included in the nixpkgs. So every dynamic configuration is broken on nix.

See yi-editor/yi-editor.github.com#21 (comment)

[matthewbauer]

/cc @chris-martin
I think this has been fixed in latest unstable

[chris-martin]

Confirmed, working in unstable.