From 8e3db8b91d7f01b5afe58a4e3bdf926afec098fa Mon Sep 17 00:00:00 2001
From: chives101 <chives101@users.noreply.github.com>
Date: Fri, 14 Apr 2023 21:20:34 +0800
Subject: [PATCH] Add nix/flake support

Example:

nix build github:mimblewimble/grin-wallet

./result/bin/grin-wallet --help
---
 .gitignore |  1 +
 flake.lock | 27 +++++++++++++++++++++++++++
 flake.nix  | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 76 insertions(+)
 create mode 100644 flake.lock
 create mode 100644 flake.nix

diff --git a/.gitignore b/.gitignore
index 78d8a7cb0..d22df82d5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,4 @@ grin.log
 wallet.seed
 test_output
 .idea/
+result
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 000000000..a3fbbf993
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1708479678,
+        "narHash": "sha256-8EeOy/6PXHszyNZQDoX742BryCYsxTDLZjMFWzE/OZg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "307ada3fc4d35f7f35feb9a0edab94f798092c1b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "release-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 000000000..a54a62179
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,48 @@
+{
+  description = "Reference Grin Wallet.";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/release-23.11";
+  };
+
+  outputs = { self, nixpkgs, }:
+    let
+      forAllSystems = with nixpkgs;
+        lib.genAttrs lib.systems.flakeExposed;
+
+      nixpkgsFor = forAllSystems (system: import nixpkgs
+        { inherit system; overlays = [ self.overlay ]; }
+      );
+    in
+    {
+      overlay = final: prev:
+        with final;
+        {
+          grin-wallet = pkgs.rustPlatform.buildRustPackage {
+            pname = "grin-wallet";
+            version = "5.2.0";
+            src = ./.;
+
+            cargoLock = {
+              lockFile = ./Cargo.lock;
+              outputHashes = {
+                "grin_api-5.3.0-alpha.1" = "sha256-qxMmWCJBtiYsqBJgDA6km7XsToLR2fv/PUUZyM1uAF4=";
+              };
+            };
+
+            nativeBuildInputs = with pkgs; [ pkg-config clang ];
+            buildInputs = [ pkgs.openssl ];
+            LIBCLANG_PATH = "${pkgs.libclang.lib}/lib";
+
+            # do not let test results block the build process
+            doCheck = false;
+          };
+        };
+
+      packages = forAllSystems (
+        system: {
+          default = nixpkgsFor.${system}.grin-wallet;
+        }
+      );
+    };
+}