Yes, thank you, this was exactly what I was in search of! Now my configuration works :)
Bests Carlo Nucera 2014-12-06 23:39 GMT+01:00 Peter Simons <[email protected]>: > Hi Carlo, > > > I wrote the nix expression for abcnotation, and it's not yet present > > in the channel. What would be the right way to add an expression made > > by me in this setup? > > run the commands > > $ cabal2nix cabal://prettify >~/.nixpkgs/prettify.nix > $ cabal2nix cabal://abcnotation >~/.nixpkgs/abcnotation.nix > > and define in ~/.nixpkgs/config.nix: > > packageOverrides = super: let self = super.pkgs; in > { > haskellPackages = super.haskellPackages.override { > extension = self: super: { > abcnotation = self.callPackage ./abcnotation.nix {}; > prettify = self.callPackage ./prettify.nix {}; > }; > }; > }; > > This will make abcnotation (and prettify) available like any other > package defined in Nixpkgs, and you can use them with 'ghcWithPackages'. > > > > More generally, I'd like a configuration in which I'm able to: > > > > 1) install packages from nixos-unstable, > > 2) from a nixpkgs local repo, > > 3) from expressions mantained by me > > 4) using ghc-mod and similar in emacs > > You can do all those things easily with ghcWithPackages. Just add > 'ghcMod' to the package set, and add these definitions to your > ~/.bashrc: > > NIX_GHC_VERSION=$(ghc --numeric-version) > export NIX_GHC="$HOME/.nix-profile/bin/ghc" > export NIX_GHCPKG="$HOME/.nix-profile/bin/ghc-pkg" > export NIX_GHC_DOCDIR="$HOME/.nix-profile/share/doc/ghc/html" > export NIX_GHC_LIBDIR="$HOME/.nix-profile/lib/ghc-${NIX_GHC_VERSION}" > > With that setup, ghc-mod will work just fine (for those packages that > you've declared). > > I hope this helps > Peter > > _______________________________________________ > nix-dev mailing list > [email protected] > http://lists.science.uu.nl/mailman/listinfo/nix-dev _______________________________________________ nix-dev mailing list [email protected] http://lists.science.uu.nl/mailman/listinfo/nix-dev
