GPN RELEASE

2 files changed, 72 insertions, 4 deletions

diff --git a/README.md b/README.md
index c473557..33a4b78 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,5 @@
 # r2wars-new
 
-This is a quick and dirty implementation of r2wars for the easterhegg 20
-workshops I'm giving (It's currently 01:00 of the day of the workshop and I'm
-realizing that the code I wrote about 3 years ago is kind of broken).
-
 ```
 ; CGO_ENABLED=0 go run ./... -t 1s -v ./bots/warrior0.asm ./bots/warrior1.as
 ```
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..2cdea58
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,72 @@
+# https://github.com/NixOS/templates/blob/master/go-hello/flake.nix
+{
+  description = "r2wars";
+
+  # Nixpkgs / NixOS version to use.
+  inputs.nixpkgs.url = "nixpkgs/nixos-21.11";
+
+  outputs = { self, nixpkgs }:
+    let
+
+      # to work with older version of flakes
+      lastModifiedDate = self.lastModifiedDate or self.lastModified or "19700101";
+
+      # Generate a user-friendly version number.
+      version = builtins.substring 0 8 lastModifiedDate;
+
+      # System types to support.
+      supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
+
+      # Helper function to generate an attrset '{ x86_64-linux = f "x86_64-linux"; ... }'.
+      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+
+      # Nixpkgs instantiated for supported system types.
+      nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
+
+    in
+    {
+
+      # Provide some binary packages for selected system types.
+      packages = forAllSystems (system:
+        let
+          pkgs = nixpkgsFor.${system};
+        in
+        {
+          go-hello = pkgs.buildGoModule {
+            pname = "r2wars";
+            inherit version;
+            # In 'nix develop', we don't need a copy of the source tree
+            # in the Nix store.
+            src = ./.;
+
+            # This hash locks the dependencies of this package. It is
+            # necessary because of how Go requires network access to resolve
+            # VCS.  See https://www.tweag.io/blog/2021-03-04-gomod2nix/ for
+            # details. Normally one can build with a fake sha256 and rely on native Go
+            # mechanisms to tell you what the hash should be or determine what
+            # it should be "out-of-band" with other tooling (eg. gomod2nix).
+            # To begin with it is recommended to set this, but one must
+            # remeber to bump this hash when your dependencies change.
+            vendorSha256 = pkgs.lib.fakeSha256;
+
+            #vendorSha256 = "sha256-pQpattmS9VmO3ZIQUFn66az8GSmB4IvYhTTCFn6SUmo=";
+          };
+        });
+      
+      # Add dependencies that are only needed for development
+      devShells = forAllSystems (system:
+        let 
+          pkgs = nixpkgsFor.${system};
+        in
+        {
+          default = pkgs.mkShell {
+            buildInputs = with pkgs; [ go gopls gotools go-tools ];
+          };
+        });
+
+      # The default package for 'nix build'. This makes sense if the
+      # flake provides only one package or there is a clear "main"
+      # package.
+      defaultPackage = forAllSystems (system: self.packages.${system}.go-hello);
+    };
+}
\ No newline at end of file