From b81a92ee0edde192068d2112272b7dabec95f9dc Mon Sep 17 00:00:00 2001
From: Mathis Antony <sveitser@gmail.com>
Date: Fri, 19 Jul 2024 11:04:17 +0200
Subject: [PATCH] Add flake for contract development

- Works for `yarn install`, `yarn build:all`, `forg test`
- The command `yarn test` fails with

  1) ArbRollupFastConfirm
       should initialize:
     Error: missing argument:  in Contract constructor
     (count=0, expectedCount=1, code=MISSING_ARGUMENT, version=contracts/5.7.0)
---
 flake.lock | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 flake.nix  |  39 +++++++++++++++++++
 2 files changed, 150 insertions(+)
 create mode 100644 flake.lock
 create mode 100644 flake.nix

diff --git a/flake.lock b/flake.lock
new file mode 100644
index 00000000..175b9937
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,111 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1644229661,
+        "narHash": "sha256-1YdnJAsNy69bpcjuoKdOYQX0YxZBiCYZo4Twxerqv7k=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3cecb5b042f7f209c56ffd8371b2711a290ec797",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "foundry": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1719997877,
+        "narHash": "sha256-/Edw+w0PiGgxwnCeJycM0VgH4HtlCi91v1d8xbi+REE=",
+        "owner": "shazow",
+        "repo": "foundry.nix",
+        "rev": "02febba4f1cf0606d790acdb24adcf7a64afb4e1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "shazow",
+        "ref": "monthly",
+        "repo": "foundry.nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1666753130,
+        "narHash": "sha256-Wff1dGPFSneXJLI2c0kkdWTgxnQ416KE6X4KnFkgPYQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "f540aeda6f677354f1e7144ab04352f61aaa0118",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1721303309,
+        "narHash": "sha256-/+Yw4tW/mcTRKmkEAO64ObzCQClpSUZpk2flUD9GDHE=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "7e2fb8e0eb807e139d42b05bf8e28da122396bed",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "foundry": "foundry",
+        "nixpkgs": "nixpkgs_2",
+        "utils": "utils"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 00000000..f999c165
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,39 @@
+{
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+  inputs.utils.url = "github:numtide/flake-utils";
+  inputs.foundry.url = "github:shazow/foundry.nix/monthly"; # Use monthly branch for permanent releases
+
+  outputs = { self, nixpkgs, utils, foundry }:
+    utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs
+          {
+            inherit system;
+            overlays = [
+              foundry.overlay
+              (final: prev: {
+                # Overlaying nodejs here to ensure nodePackages use the desired
+                # version of nodejs use by the upstream CI.
+                nodejs = prev.nodejs-18_x;
+                pnpm = prev.nodePackages.pnpm;
+                yarn = prev.nodePackages.yarn;
+              })
+            ];
+          };
+      in
+      {
+        devShells.default = with pkgs; mkShell {
+          buildInputs = [
+            foundry-bin
+            nodejs
+            yarn
+          ];
+          shellHook = ''
+            # Add node executables (incl. hardhat) to PATH
+            export PATH=$PWD/node_modules/.bin:$PATH
+          '';
+
+        };
+
+      });
+}