From d180b9a6eefc63232b7c92a93ae1317f5374c22d Mon Sep 17 00:00:00 2001
From: Richard Wallace <rwallace@thewallacepack.net>
Date: Tue, 14 Oct 2014 16:58:56 -0700
Subject: [PATCH] haskell: add validation package

---
 .../libraries/haskell/validation/default.nix  | 21 +++++++++++++++++++
 pkgs/top-level/haskell-packages.nix           |  2 ++
 2 files changed, 23 insertions(+)
 create mode 100644 pkgs/development/libraries/haskell/validation/default.nix

diff --git a/pkgs/development/libraries/haskell/validation/default.nix b/pkgs/development/libraries/haskell/validation/default.nix
new file mode 100644
index 000000000000..2ae7e9c66e52
--- /dev/null
+++ b/pkgs/development/libraries/haskell/validation/default.nix
@@ -0,0 +1,21 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, bifunctors, doctest, filepath, lens, QuickCheck
+, semigroupoids, semigroups, transformers
+}:
+
+cabal.mkDerivation (self: {
+  pname = "validation";
+  version = "0.4.1";
+  sha256 = "05mws9gqlqjmzcw6d3kclrh9dybchhp61qsfwg77h31n44j7w0mh";
+  buildDepends = [
+    bifunctors lens semigroupoids semigroups transformers
+  ];
+  testDepends = [ doctest filepath QuickCheck ];
+  meta = {
+    homepage = "https://github.com/tonymorris/validation";
+    description = "A data-type like Either but with an accumulating Applicative";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index edcc88de1919..06102881bd5c 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -3072,6 +3072,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   taffybar = callPackage ../applications/misc/taffybar {};
 
+  validation = callPackage ../development/libraries/haskell/validation {};
+
   xlsx = callPackage ../development/libraries/haskell/xlsx {};
 
   xmobar = callPackage ../applications/misc/xmobar {};