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e57fd11bb4
This adds a `readDirectory` utility that can be used to "slurp" a directory
full of `cabal2nix`-generated files and transform them into a Haskell package
override set. The main use of this is so that users don't have to write:
```
{ overrides = self: super: {
foo = self.callPackage ./path/to/foo.nix { };
bar = self.callPackage ./path/to/bar.nix { };
...
};
}
```
Instead, they can write:
```
{ overrides = pkgs.haskell.lib.readDirectory ./path/to;
}
```
This is a an alternative to `packageSourceOverrides` which primarily addresses
the following use cases:
* The desired package is not yet available in `all-cabal-hashes` (perhaps the
user is pinned to an older revision of `nixpkgs`)
* The default `cabal2nix` invocation used by `packageSourceOverrides`
does not use the desired `cabal2nix` flags
* The user wants to avoid the use of import-from-derivation
|
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|---|---|---|
| .. | ||
| patches | ||
| configuration-common.nix | ||
| configuration-ghc-7.10.x.nix | ||
| configuration-ghc-8.0.x.nix | ||
| configuration-ghc-8.2.x.nix | ||
| configuration-ghc-8.4.x.nix | ||
| configuration-ghc-head.nix | ||
| configuration-ghcjs.nix | ||
| configuration-hackage2nix.yaml | ||
| configuration-halvm-2.4.0.nix | ||
| configuration-nix.nix | ||
| default.nix | ||
| generic-builder.nix | ||
| generic-stack-builder.nix | ||
| hackage-packages.nix | ||
| hoogle-local-wrapper.sh | ||
| hoogle.nix | ||
| initial-packages.nix | ||
| lib.nix | ||
| make-package-set.nix | ||
| with-packages-wrapper.nix | ||