Add pkgs to use nixpkgs-default easily (#602)

Currently if we want to use nixpkgs-default and nixpkgsAgs it is
a bit painful.  With this change:

```
nix-build -E 'let h = import ./. {}; in (import h.sources.nixpkgs-default h.nixpkgsArgs).haskell-nix.tool "hlint" "3.1"'
```

becomes

```
nix-build -E 'pkgs.haskell-nix.tool "hlint" "3.1"'
```
This commit is contained in:
Hamish Mackenzie 2020-05-13 16:29:29 +12:00 committed by GitHub
parent 83c85a0f22
commit 6a0dd874be
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@ -7,6 +7,7 @@ let haskellNix = rec {
overlays = [ allOverlays.combined ];
allOverlays = import ./overlays;
nixpkgsArgs = { inherit config overlays; };
pkgs = import sources.nixpkgs-default nixpkgsArgs;
};
haskellNixV1 = haskellNix.nixpkgsArgs;