Unified ghc version used across build

2 files changed, 10 insertions, 8 deletions

diff --git a/default.nix b/default.nix
index 52ecd20..1dc1708 100644
--- a/default.nix
+++ b/default.nix
@@ -1,19 +1,21 @@
 { pkgs ? (import <nixpkgs> {})
+, compilerName ? "ghc7103"
 }:
 
 rec {
-  thermoprint-spec = pkgs.haskellPackages.callPackage ./spec/thermoprint-spec.nix {};
-  thermoprint-bbcode = pkgs.haskellPackages.callPackage ./tp-bbcode/thermoprint-bbcode.nix {
+  haskellPackages = pkgs.haskell.packages."${compilerName}";
+  thermoprint-spec = haskellPackages.callPackage ./spec/thermoprint-spec.nix {};
+  thermoprint-bbcode = haskellPackages.callPackage ./tp-bbcode/thermoprint-bbcode.nix {
     inherit bbcode thermoprint-spec;
   };
-  thermoprint-client = pkgs.haskellPackages.callPackage ./client/thermoprint-client.nix {
+  thermoprint-client = haskellPackages.callPackage ./client/thermoprint-client.nix {
     inherit thermoprint-spec;
   };
   thermoprint-server = pkgs.callPackage ./server/wrapped.nix {
-    inherit (pkgs.haskellPackages) ghcWithPackages;
-    thermoprint-server = pkgs.haskellPackages.callPackage ./server/thermoprint-server.nix {
+    inherit (haskellPackages) ghcWithPackages;
+    thermoprint-server = haskellPackages.callPackage ./server/thermoprint-server.nix {
       inherit thermoprint-spec thermoprint-client;
     };
   };
-  bbcode = pkgs.haskellPackages.callPackage ./bbcode/bbcode.nix {};
+  bbcode = haskellPackages.callPackage ./bbcode/bbcode.nix {};
 }
diff --git a/shell.nix b/shell.nix
index d6f2e43..f0a69b4 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,10 +1,10 @@
 { pkgs ? (import <nixpkgs> {})
-, compilerName ? "ghc7103"
+, haskellPackages ? (import ./default.nix {}).haskellPackages
 }:
 
 let
   thermoprintPackages = builtins.attrValues (import ./default.nix {});
-  ghc = pkgs.haskell.packages.${compilerName}.ghcWithPackages
+  ghc = haskellPackages.ghcWithPackages
     (ps: thermoprintPackages ++ utilities ps ++ testDeps ps);
   utilities = (ps: with ps; [ hlint cabal2nix ]);
   testDeps = (ps: with ps; [ temporary hspec ]);