NixOS/cabal2nix — pull request #80 by bennofs (2014-08-18 10:14:10+00:00)
Title: Bugfixes and docfixes for local project patch

This fixes #79 and improves documentation and error messages. It also includes a small fix to support generation from local archives, so you can now do:

``` nix
# cabal2nix packages/lens-4.3.tar.gz
# This file was auto-generated by cabal2nix. Please do NOT edit manually!

{ cabal, aeson, attoparsec, bifunctors, comonad, contravariant
, deepseq, distributive, doctest, exceptions, filepath, free
, genericDeriving, hashable, hlint, HUnit, mtl, nats, parallel
, primitive, profunctors, QuickCheck, reflection, scientific
, semigroupoids, semigroups, simpleReflect, split, tagged
, testFramework, testFrameworkHunit, testFrameworkQuickcheck2
, testFrameworkTh, text, transformers, transformersCompat
, unorderedContainers, vector, void, zlib
}:

cabal.mkDerivation (self: {
pname = "lens";
version = "4.3";
src = /tmp/packages/lens-4.3.tar.gz;
buildDepends = [
aeson attoparsec bifunctors comonad contravariant distributive
exceptions filepath free hashable mtl parallel primitive
profunctors reflection scientific semigroupoids semigroups split
tagged text transformers transformersCompat unorderedContainers
vector void zlib
];
testDepends = [
deepseq doctest filepath genericDeriving hlint HUnit mtl nats
parallel QuickCheck semigroups simpleReflect split testFramework
testFrameworkHunit testFrameworkQuickcheck2 testFrameworkTh text
transformers unorderedContainers vector
];
meta = {
homepage = "http://github.com/ekmett/lens/";
description = "Lenses, Folds and Traversals";
license = self.stdenv.lib.licenses.bsd3;
platforms = self.ghc.meta.platforms;
};
})

```

Also, `cabal2nix .` doesn't generate an invalid derivation anymore.