chore: update go versions (#4)

Author: gkampitakis

.github/workflows/go.yml

@@ -21,7 +21,7 @@ jobs:
     steps:
       - uses: actions/setup-go@v3
         with:
-          go-version: 1.19.x
+          go-version: 1.20.x
       - uses: actions/checkout@v3
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3
@@ -36,13 +36,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go:
-          [
-            "1.16.x",
-            "1.17.x",
-            "1.18.x",
-            "1.19.x",
-          ]
+        go: ["1.18.x", "1.19.x", "1.20.x"]
     steps:
       - uses: actions/checkout@v3
       - name: Setup go

Makefile

@@ -1,23 +1,27 @@
-.PHONY: install-tools lint test test-verbose format benchmark
+.PHONY: help install-tools lint test test-verbose format benchmark
+.SILENT: help install-tools lint test test-verbose format benchmark
 
-install-tools:
+help:
+	grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+
+install-tools: ## Install linting tools
 	# Install linting tools
 	go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.49.0
 	go install mvdan.cc/gofumpt@latest
 	go install github.com/segmentio/golines@latest
 
-lint:
+lint: ## Run golangci linter
 	golangci-lint run -c ./golangci.yml ./...
 
-format:
+format: ## Format code
 	gofumpt -l -w -extra .
 	golines . -w
 
-test:
+test: ## Run tests
 	go test -race -test.timeout 120s -count=1 ./...
 
-test-verbose:
+test-verbose: ## Run tests with verbose output
 	go test -race -test.timeout 120s -v -cover -count=1 ./...
 
-benchmark:
+benchmark: ## Run benchmarks
 	go test -bench=. -benchmem ./...

go.mod

@@ -1,3 +1,3 @@
 module github.com/gkampitakis/go-diff
 
-go 1.16
+go 1.20