Implement old bar.hs

1 files changed, 18 insertions, 0 deletions

diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..b6595aa
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,18 @@
+{ nixpkgs ? import <nixpkgs> {}, compiler ? "default" }:
+
+let
+  inherit (nixpkgs) pkgs;
+
+  haskellPackages = if compiler == "default"
+                       then pkgs.haskellPackages
+                       else pkgs.haskell.packages.${compiler};
+
+  drv = haskellPackages.callPackage ./bar.nix {};
+in
+  pkgs.stdenv.lib.overrideDerivation drv.env (oldAttrs: {
+    buildInputs = oldAttrs.buildInputs ++ (with pkgs; [ cabal2nix gup haskellPackages.hlint haskellPackages.stack haskellPackages.yesod-bin ]);
+    shellHook = ''
+      ${oldAttrs.shellHook}
+      export PROMPT_INFO="${oldAttrs.name}"
+    '';
+  })