1 files changed, 27 insertions, 0 deletions

diff --git a/nix/nixpkgs.nix b/nix/nixpkgs.nix
new file mode 100644
index 0000000..b5675fb
--- /dev/null
+++ b/nix/nixpkgs.nix
@@ -0,0 +1,27 @@
+
+let
+  # Manage this with https://github.com/nmattia/niv
+  # or define { nixpkgs = ...; nixpkgs-mozilla = ...; }
+  # yourself.
+  sources = import ./sources.nix;
+
+  rustChannelsOverlay = import "${sources.nixpkgs-mozilla}/rust-overlay.nix";
+  # Useful if you also want to provide that in a nix-shell since some rust tools depend
+  # on that.
+  rustChannelsSrcOverlay = import "${sources.nixpkgs-mozilla}/rust-src-overlay.nix";
+
+in import sources.nixpkgs {
+    overlays = [
+      rustChannelsOverlay
+      rustChannelsSrcOverlay
+      (self: super: {
+        # Replace "latest.rustChannels.stable" with the version of the rust tools that
+        # you would like. Look at the documentation of nixpkgs-mozilla for examples.
+        #
+        # NOTE: "rust" instead of "rustc" is not a typo: It will include more than needed
+        # but also the much needed "rust-std".
+        rustc = super.latest.rustChannels.stable.rust;
+        inherit (super.latest.rustChannels.stable) cargo rust rust-fmt rust-std clippy;
+      })
+    ];
+  }