Basic Flake (#41)

Here is a basic flake for the project.

Features:
- Multi architecture builds (aarch64, x86_64, risc, etc)
- Reproducible development environments. Run `nix develop` and you have
the locked version of Rust and rust-analyzer
- Reproducable builds.

Let me know any other changes that need to be made

.gitignore

@@ -1 +1,5 @@
+# Rust
 /target
+
+# Nix
+result

flake.nix

@@ -0,0 +1,42 @@
+{
+ description = "The Nushell Formatter";
+
+ inputs = {
+ nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+ flake-utils.url = "github:numtide/flake-utils";
+
+ rust-overlay.url = "github:oxalica/rust-overlay";
+ };
+
+ outputs = { self, nixpkgs, rust-overlay, flake-utils, ... }:
+ flake-utils.lib.eachDefaultSystem (system:
+ let
+ overlays = [ (import rust-overlay) ];
+ pkgs = import nixpkgs {
+ inherit system overlays;
+ };
+ in
+ {
+ devShells.default = pkgs.mkShell {
+ nativeBuildInputs = with pkgs; [
+ rust-bin.stable.latest.default
+ rust-analyzer
+
+ nushell
+ ];
+
+ buildInputs = with pkgs; [ ];
+ };
+
+ packages.default = pkgs.rustPlatform.buildRustPackage rec {
+ name = "nufmt";
+
+ src = ./.;
+
+ cargoLock = {
+ lockFile = ./Cargo.lock;
+ };
+ };
+ }
+ );
+}