chore: dev environment

Author: Oudwins

.envrc

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

.gitignore

@@ -0,0 +1,6 @@
+tailwind-merge/
+playground
+.idea
+.direnv
+*.cov
+*.out

.goignore

@@ -0,0 +1,3 @@
+assets/
+*.md
+docs/

Makefile

@@ -1,4 +1,11 @@
-
+test-watch:
+	@gotestsum --format=short-verbose --watch
 
 test:
-	go test -v -cover ./pkg/twmerge...
+	@gotestsum --format=short-verbose
+
+test-cover:
+	@CGO_ENABLED=1 gotestsum -- -race -covermode=atomic -coverprofile="profile.cov" ./... && go tool cover -func=profile.cov | grep -v "100.0%"
+
+lint:
+	@go run github.com/golangci/golangci-lint/cmd/golangci-lint@latest run

flake.lock

@@ -0,0 +1,44 @@
+{
+  description = "A Nix-flake-based Go 1.21 development environment";
+
+  inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";
+
+  outputs = { self, nixpkgs }:
+    let
+      goVersion = 21; # Change this to update the whole stack
+
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+      forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [ self.overlays.default ];
+        };
+      });
+    in
+    {
+      overlays.default = final: prev: {
+        go = final."go_1_${toString goVersion}";
+      };
+
+      devShells = forEachSupportedSystem ({ pkgs }: {
+        default = pkgs.mkShell {
+          packages = with pkgs; [
+            # go (version is specified by overlay)
+            go
+
+            # goimports, godoc, etc.
+            gotools
+
+            # https://github.com/golangci/golangci-lint
+            golangci-lint
+
+            # Tests summaries
+            gotestsum
+          ];
+          shellHook = ''
+            export CGO_ENABLED="0" # disables cgo. Not sure why this fixes debugger on tests in vscode
+          '';
+        };
+      });
+    };
+}