Create an overlay for Delft

Instead of depending on local patches to nixpkgs.
NixOS · Nov 28, 2018 · 2ca0052 · 2ca0052
1 parent 2c9de8b
commit 2ca0052
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diff --git a/delft/network.nix b/delft/network.nix
@@ -1,4 +1,8 @@
 {
+  defaults = { pkgs, ... }: {
+    nixpkgs.overlays = [ (import ./overlay.nix) ];
+  };
+
   hydra = { deployment.targetHost = "hydra.ewi.tudelft.nl"; imports = [ ./build-machines-dell-1950.nix ]; };
   lucifer = { deployment.targetHost = "lucifer.ewi.tudelft.nl"; imports = [ ./lucifer.nix ]; };
   wendy = { deployment.targetHost = "wendy.ewi.tudelft.nl"; imports = [ ./wendy.nix ]; };

diff --git a/delft/overlay.nix b/delft/overlay.nix
@@ -0,0 +1,12 @@
+self: super:
+{
+  nixUnstable = super.nixUnstable.overrideAttrs (oldatrs: {
+    name = "nix-2.2pre6526_9f99d624";
+    src = self.fetchFromGitHub {
+      owner = "NixOS";
+      repo = "nix";
+      rev = "9f99d62480cf7c58c0a110b180f2096b7d25adab";
+      sha256 = "0fkmx7gmgg0yij9kw52fkyvib88hj1jsj90vbpy13ccfwknh1044";
+    };
+  });
+}