From ab443863a5d858c5173a4f13047e2a6523859ca7 Mon Sep 17 00:00:00 2001
From: zimbatm <zimbatm@zimbatm.com>
Date: Sun, 23 Feb 2020 14:58:30 +0100
Subject: [PATCH] add cachix

---
 images/cachix/default.nix | 6 ++++++
 images/nix/default.nix    | 3 ++-
 2 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 images/cachix/default.nix

diff --git a/images/cachix/default.nix b/images/cachix/default.nix
new file mode 100644
index 0000000..bbc7f12
--- /dev/null
+++ b/images/cachix/default.nix
@@ -0,0 +1,6 @@
+{ docker-nixpkgs
+, cachix
+}:
+docker-nixpkgs.nix.override {
+  extraContents = [ cachix ];
+}
diff --git a/images/nix/default.nix b/images/nix/default.nix
index b5bd52a..635278f 100644
--- a/images/nix/default.nix
+++ b/images/nix/default.nix
@@ -9,6 +9,7 @@
 , iana-etc
 , nix
 , xz
+, extraContents ? []
 }:
 let
   image = dockerTools.buildImageWithNixDb {
@@ -30,7 +31,7 @@ let
 
       # for haskell binaries
       iana-etc
-    ];
+    ] ++ extraContents;
 
     extraCommands = ''
       # for /usr/bin/env