temp flake

Author: Erin van der Veen

flake.nix

@@ -0,0 +1,79 @@
+{
+  description = "A Nix-flake-based Rust development environment";
+
+  inputs = {
+    nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1"; # unstable Nixpkgs
+    fenix = {
+      url = "https://flakehub.com/f/nix-community/fenix/0.1";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs =
+    { self, ... }@inputs:
+
+    let
+      supportedSystems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+      forEachSupportedSystem =
+        f:
+        inputs.nixpkgs.lib.genAttrs supportedSystems (
+          system:
+          f {
+            pkgs = import inputs.nixpkgs {
+              inherit system;
+              overlays = [
+                inputs.self.overlays.default
+              ];
+            };
+          }
+        );
+    in
+    {
+      overlays.default = final: prev: {
+        rustToolchain = inputs.fenix.packages.${prev.stdenv.hostPlatform.system}.fromToolchainFile {
+          dir = ./.;
+        };
+        # combine (
+        #   with latest;
+        #   [
+        #     clippy
+        #     rustc
+        #     cargo
+        #     rustfmt
+        #     rust-src
+        #     rustc-dev
+        #     llvm-tools-preview
+        #   ]
+        # );
+      };
+
+      devShells = forEachSupportedSystem (
+        { pkgs }:
+        {
+          default = pkgs.mkShellNoCC {
+            packages = with pkgs; [
+              rustToolchain
+              openssl
+              pkg-config
+              cargo-deny
+              cargo-edit
+              cargo-watch
+              rust-analyzer
+              clang
+            ];
+
+            env = {
+              CARGO_HOME = "/home/erin/.cargo";
+              # Required by rust-analyzer
+              RUST_SRC_PATH = "${pkgs.rustToolchain}/lib/rustlib/src/rust/library";
+            };
+          };
+        }
+      );
+    };
+}