Merge pull request #3 from apiiro/yoel/upgradeGoLang1_20

Set Go lang to 1.20

Author: ravyolii

Makefile

@@ -16,7 +16,7 @@ endif
 	GO111MODULE=on CGO_ENABLED=0 $(GOCMD) build -o bin/$(BINARY_NAME)-$(shell $(GOCMD) run . --version | cut -d" " -f 3)-osx .
 
 build-linux:
-	docker run --rm -v $(shell pwd):/app -w /app golang:alpine /bin/sh -c "GO111MODULE=on CGO_ENABLED=0 $(GOCMD) build -o bin/$(BINARY_NAME)-$(shell $(GOCMD) run . --version | cut -d" " -f 3)-linux ."
+	docker run --rm -v $(shell pwd):/app -w /app golang:1.20-alpine /bin/sh -c "GO111MODULE=on CGO_ENABLED=0 $(GOCMD) build -o bin/$(BINARY_NAME)-$(shell $(GOCMD) run . --version | cut -d" " -f 3)-linux ."
 
 clean:
 	rm -rf ./bin

calculate/calculate_test.go

@@ -4,7 +4,6 @@ import (
 	"code-complexity/options"
 	"code-complexity/test_resources"
 	"io/fs"
-	"io/ioutil"
 	"math"
 	"os"
 	"path/filepath"
@@ -51,7 +50,7 @@ func touch(filePath string) {
 func TestIncludeExcludePatterns(t *testing.T) {
 	r := assert.New(t)
 
-	basePath, err := ioutil.TempDir("", "")
+	basePath, err := os.MkdirTemp("", "")
 	if err != nil {
 		panic(err)
 	}
@@ -125,7 +124,7 @@ func TestEncodings(t *testing.T) {
 	}
 	sourcePath := filepath.Join(wdPath, "..", "test_resources", "encoding")
 
-	basePath, err := ioutil.TempDir("", "")
+	basePath, err := os.MkdirTemp("", "")
 	if err != nil {
 		panic(err)
 	}

main.go

@@ -11,7 +11,7 @@ import (
 	"github.com/urfave/cli/v2"
 )
 
-const VERSION = "1.0.2"
+const VERSION = "1.0.3"
 
 func main() {
 	cli.AppHelpTemplate =