From e82440741295543769fa79ae05519d58fcb81b08 Mon Sep 17 00:00:00 2001
From: Ben Sima <ben@bsima.me>
Date: Fri, 3 Apr 2020 15:37:10 -0700
Subject: Factor haskell packages into overlays

---
 overlays.nix | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 overlays.nix

(limited to 'overlays.nix')

diff --git a/overlays.nix b/overlays.nix
new file mode 100644
index 0000000..5da2957
--- /dev/null
+++ b/overlays.nix
@@ -0,0 +1,35 @@
+self: super:
+
+let
+ claySrc = super.pkgs.fetchFromGitHub {
+    owner = "sebastiaanvisser";
+    repo = "clay";
+    rev = "cc7729b1b42a79e261091ff7835f7fc2a7ae3cee";
+    sha256 = "1vd67976lvi5l4qq18zy6j44apynkl44ps04p8vwfx4gzr895dyp";
+  };
+in {
+  haskell = super.haskell // {
+    packages = super.haskell.packages // {
+      ghc865 = super.haskell.packages.ghc865.override (old: {
+        overrides = with super.pkgs.haskell.lib; self: super: {
+          clay = self.callCabal2nix "clay" claySrc {};
+          wai-middleware-metrics = dontCheck super.wai-middleware-metrics;
+        };
+      });
+      ghcjs = super.haskell.packages.ghcjs.override (old: {
+        overrides = with super.haskell.lib; self: super: {
+          QuickCheck = dontCheck super.QuickCheck;
+          base-compat-batteries = dontCheck super.http-types;
+          clay = dontCheck (self.callCabal2nix "clay" claySrc {});
+          comonad = dontCheck super.comonad;
+          http-types = dontCheck super.http-types;
+          network-uri= dontCheck super.network-uri;
+          scientific = dontCheck super.scientific; # takes forever
+          servant = dontCheck super.servant;
+          tasty-quickcheck = dontCheck super.tasty-quickcheck;
+          time-compat = dontCheck super.time-compat;
+        };
+      });
+    };
+  };
+}
-- 
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