nixification

Author: idontgetoutmuch

shell.nix

@@ -0,0 +1,65 @@
+{ nixpkgs ? import <nixpkgs> { config.allowUnfree = true; config.allowBroken = true; }, compiler ? "default", doBenchmark ? false }:
+
+let
+
+  inherit (nixpkgs) pkgs;
+
+  f = { mkDerivation, accelerate, accelerate-fft
+      , accelerate-llvm-native, base, Chart, Chart-cairo, Chart-diagrams
+      , clock, diagrams-cairo, diagrams-lib, formatting, hedgehog, HUnit
+      , lens-accelerate, stdenv, tasty, tasty-hedgehog, vector
+      }:
+      mkDerivation {
+        pname = "chebApprox";
+        version = "0.1.0.0";
+        src = nixpkgs.fetchgit {
+	  url = https://github.com/DeifiliaTo/chebApprox;
+	  rev = "30f1b1d4ab33dfbcba061cdc3d6e224a0d1e7146";
+          sha256 = "01w9yxx6djhgdhagdswkshdda6mkypvy0ajfrwyr0swrbkx6rrw5";
+	  };
+        isLibrary = true;
+        isExecutable = true;
+        libraryHaskellDepends = [
+          accelerate accelerate-llvm-native base clock formatting hedgehog
+          tasty tasty-hedgehog vector
+        ];
+        executableHaskellDepends = [
+          accelerate accelerate-fft accelerate-llvm-native base Chart
+          Chart-cairo Chart-diagrams diagrams-cairo diagrams-lib HUnit
+          lens-accelerate
+        ];
+        homepage = "https://github.com/DeifiliaTo/chebApprox";
+        description = "Function approximation";
+        license = stdenv.lib.licenses.bsd3;
+      };
+
+  my-accelerate = pkgs.haskellPackages.accelerate.overrideAttrs (oldAttrs: rec {
+    src = nixpkgs.fetchgit {
+      url = https://github.com/tmcdonell/accelerate;
+      rev = "a7b685352330ebf7d8794aed64663a9ee92dcdab";
+      sha256 = "01w9yxx6djhgdhagdswkshdda6mkypvy0ajfrwyr0swrbkx6rrw5";
+      };
+    version = "1.3.0.0";
+    doCheck = false;
+  });
+
+  haskellPackages = if compiler == "default"
+                       then pkgs.haskellPackages
+                       else pkgs.haskell.packages.${compiler};
+
+  myHaskellPackages = haskellPackages.override {
+    overrides = self: super: with pkgs.haskell.lib; {
+      accelerate-llvm-native = dontCheck super.accelerate-llvm-native;
+      accelerate-llvm-ptx    = dontCheck super.accelerate-llvm-ptx;
+      accelerate-fft         = dontCheck super.accelerate-fft;
+      accelerate             = my-accelerate;
+    };
+  };
+
+  variant = if doBenchmark then pkgs.haskell.lib.doBenchmark else pkgs.lib.id;
+
+  drv = variant (myHaskellPackages.callPackage f {});
+
+in
+
+  if pkgs.lib.inNixShell then drv.env else drv