Merge pull request #217 from TonyGiorgio/nix-flake

Add nix flake

flake.nix

@@ -0,0 +1,60 @@
+{
+  description = "Moksha flake";
+
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    nixpkgs.url = "nixpkgs/nixos-unstable";
+  };
+
+  outputs = { self, nixpkgs, flake-utils, rust-overlay }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ rust-overlay.overlays.default ];
+        pkgs = import nixpkgs { inherit system overlays; };
+        rust = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
+        inputs = [
+	  rust
+          pkgs.rust-analyzer
+          pkgs.typos
+          pkgs.sqlx-cli
+          pkgs.grcov
+          pkgs.protobuf
+	  pkgs.openssl
+          pkgs.zlib
+          pkgs.gcc
+          pkgs.pkg-config
+          pkgs.just
+          pkgs.wasm-pack
+          pkgs.wasm-bindgen-cli
+          pkgs.binaryen
+	  pkgs.clang
+	];
+      in
+      {
+        defaultPackage = pkgs.rustPlatform.buildRustPackage {
+          src = ./.;
+
+          cargoLock = {
+            lockFile = ./Cargo.lock;
+          };
+
+          nativeBuildInputs = inputs;
+        };
+
+
+        devShell = pkgs.mkShell {
+	  packages = inputs;
+          shellHook = ''
+	    export LIBCLANG_PATH=${pkgs.libclang.lib}/lib/
+            export LD_LIBRARY_PATH=${pkgs.openssl}/lib:$LD_LIBRARY_PATH
+            export CC_wasm32_unknown_unknown=${pkgs.llvmPackages_14.clang-unwrapped}/bin/clang-14
+            export CFLAGS_wasm32_unknown_unknown="-I ${pkgs.llvmPackages_14.libclang.lib}/lib/clang/14.0.6/include/"
+          '';
+	};
+      }
+    );
+}