initial commit

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -0,0 +1 @@
+.direnv

flake.lock

@@ -0,0 +1,25 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1712963716,
+        "narHash": "sha256-WKm9CvgCldeIVvRz87iOMi8CFVB1apJlkUT4GGvA0iM=",
+        "rev": "cfd6b5fc90b15709b780a5a1619695a88505a176",
+        "revCount": 611350,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.611350%2Brev-cfd6b5fc90b15709b780a5a1619695a88505a176/018eddfc-e6d9-74bb-a823-20f2ae60079b/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1.%2A.tar.gz"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,34 @@
+{
+  description = "A Nix-flake-based Go 1.22 development environment";
+
+  inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";
+
+  outputs = { self, nixpkgs }:
+    let
+      goVersion = 22; # Change this to update the whole stack
+      overlays = [ (final: prev: { go = prev."go_1_${toString goVersion}"; }) ];
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+      forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
+        pkgs = import nixpkgs { inherit overlays system; };
+      });
+    in
+    {
+      devShells = forEachSupportedSystem ({ pkgs }: {
+        default = pkgs.mkShell {
+          packages = with pkgs; [
+            # go 1.22 (specified by overlay)
+            go_1_22
+
+            # goimports, godoc, etc.
+            gotools
+
+            # https://github.com/golangci/golangci-lint
+            golangci-lint
+            golangci-lint-langserver
+
+            gopls
+          ];
+        };
+      });
+    };
+}

hello/go.mod

@@ -0,0 +1,3 @@
+module hello
+
+go 1.22.1

hello/hello.go

@@ -0,0 +1,11 @@
+package main
+
+import "fmt"
+
+func Hello(name string) string {
+  return "Hello, " + name
+}
+
+func main() {
+  fmt.Println(Hello("world"))
+}

hello/hello_test.go

@@ -0,0 +1,12 @@
+package main
+
+import "testing"
+
+func TestHello(t *testing.T) {
+  got := Hello("Chris")
+  want := "Hello, Chris"
+
+  if got != want {
+    t.Errorf("got %q want %q", got, want)
+  }
+}