From 543d5baeac2d772a6cff3ea4b8cf14d740f48119 Mon Sep 17 00:00:00 2001
From: Gregor Kleen <gkleen@yggdrasil.li>
Date: Fri, 6 Nov 2015 00:10:58 +0000
Subject: Support for newer ghc versions & nix-shell

---
 blog.cabal  |  2 +-
 default.nix |  5 ++++-
 shell.nix   | 11 +++++++++++
 3 files changed, 16 insertions(+), 2 deletions(-)
 create mode 100644 shell.nix

diff --git a/blog.cabal b/blog.cabal
index c014a21..a493c15 100644
--- a/blog.cabal
+++ b/blog.cabal
@@ -20,7 +20,7 @@ executable site
   default-language:    Haskell2010
   hs-source-dirs:      src
   main-is:             Site.hs
-  build-depends:       base >=4.7 && <4.8
+  build-depends:       base >=4.7 && <4.9
                      , hakyll >=4.6 && <5
                      , containers >=0.5 && <0.6
                      , pandoc >=1.13 && <2
diff --git a/default.nix b/default.nix
index d3604c3..b5d5fed 100644
--- a/default.nix
+++ b/default.nix
@@ -7,12 +7,15 @@ let
   };
   dontCheck = drv: overrideCabal drv (drv: { doCheck = false; });
 in rec {
-  beuteltier = pkgs.stdenv.lib.overrideDerivation (
+  dirty-haskell = pkgs.stdenv.lib.overrideDerivation (
     (pkgs.haskellngPackages.callPackage ./blog.nix {}).override (attrs: attrs // {
       hakyll = dontCheck pkgs.haskellngPackages.hakyll;
     })
     ) (attrs : {
 	    src = ./.;
+	    shellHook = ''
+	      export PROMPT_INFO=${attrs.name}
+	    '';
 	  }
   );
 }
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..c1baba7
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,11 @@
+{ pkgs ? (import <nixpkgs> {})
+}:
+
+pkgs.stdenv.mkDerivation rec {
+  name = "dirty-haskell";
+  buildInputs = [ (import ./default.nix).dirty-haskell
+                ];
+  shellHook = ''
+    export PROMPT_INFO=${name}
+  '';
+}
-- 
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