default.nix: Simplify/split up into release.nix.

Unfortunately, using builtins.readDir isn't very good idea here, because
all file references from expression files found via readDir will have
imports relative to the Nix store.

We can only work around it if we copy the whole source tree into the
store, but for the sake of simplicity it's also better if we use
explicit imports.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/release.nix b/release.nix
new file mode 100644
index 00000000..33aff057
--- /dev/null
+++ b/release.nix
@@ -0,0 +1,11 @@
+with import <nixpkgs/lib>;
+
+let
+  genMachine = name: cfg: (import <nixpkgs/nixos/lib/eval-config.nix> {
+    system = "x86_64-linux";
+    modules = [ cfg ];
+  }).config.system.build.toplevel;
+
+in {
+  machines = mapAttrs genMachine (import ./default.nix).machines;
+}