From 4366fe366a03ba7b4c901241ed782f06c9e2f055 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Silva?=
 <123550+andresilva@users.noreply.github.com>
Date: Fri, 23 Oct 2020 10:21:59 +0100
Subject: [PATCH] build: add nix shell (#7376)

---
 substrate/shell.nix | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 substrate/shell.nix

diff --git a/substrate/shell.nix b/substrate/shell.nix
new file mode 100644
index 0000000000..79d9e67bde
--- /dev/null
+++ b/substrate/shell.nix
@@ -0,0 +1,23 @@
+let
+  mozillaOverlay =
+    import (builtins.fetchGit {
+      url = "https://github.com/mozilla/nixpkgs-mozilla.git";
+      rev = "57c8084c7ef41366993909c20491e359bbb90f54";
+    });
+  nixpkgs = import <nixpkgs> { overlays = [ mozillaOverlay ]; };
+  rust-nightly = with nixpkgs; ((rustChannelOf { date = "2020-10-01"; channel = "nightly"; }).rust.override {
+    targets = [ "wasm32-unknown-unknown" ];
+  });
+in
+with nixpkgs; pkgs.mkShell {
+  buildInputs = [
+    clang
+    cmake
+    pkg-config
+    rust-nightly
+  ];
+
+  LIBCLANG_PATH = "${llvmPackages.libclang}/lib";
+  PROTOC = "${protobuf}/bin/protoc";
+  ROCKSDB_LIB_DIR = "${rocksdb}/lib";
+}