38 lines
860 B
Nix
38 lines
860 B
Nix
nixpkgs:
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let
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inherit (nixpkgs.lib) mapAttrs mapAttrsToList escapeShellArg optionalString concatStringsSep concatMapStringsSep;
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in
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{ packages
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, overrides ? _ : _ : {}
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}:
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let
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overrides' = nixpkgs.lib.foldr nixpkgs.lib.composeExtensions (_: _: {}) [
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(self: super: mapAttrs (name: path: self.callCabal2nix name path {}) packages)
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];
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haskellPackages = nixpkgs.haskellPackages.override { overrides = overrides'; };
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packages' = mapAttrs (name: _: haskellPackages."${name}") packages;
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mkShell = name: pkg:
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let
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n = "${name}-shell";
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deps = haskellPackages.ghcWithPackages (pkgs: pkg.nativeBuildInputs);
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in
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{
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name = "${n}";
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value = nixpkgs.buildEnv {
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name = "${n}";
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paths = [];
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buildInputs = [deps];
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};
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};
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shells = nixpkgs.lib.listToAttrs (mapAttrsToList mkShell packages');
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in
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packages' // shells
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