diff --git a/deno_dir.go b/deno_dir.go
index d53bf85d84..5db85cf41c 100644
--- a/deno_dir.go
+++ b/deno_dir.go
@@ -12,6 +12,10 @@ import (
 	"strings"
 )
 
+var DenoDir string
+var CacheDir string
+var SrcDir string
+
 func SourceCodeHash(filename string, sourceCodeBuf []byte) string {
 	h := md5.New()
 	h.Write([]byte(filename))
@@ -21,7 +25,7 @@ func SourceCodeHash(filename string, sourceCodeBuf []byte) string {
 
 func CacheFileName(filename string, sourceCodeBuf []byte) string {
 	cacheKey := SourceCodeHash(filename, sourceCodeBuf)
-	return path.Join(CompileDir, cacheKey+".js")
+	return path.Join(CacheDir, cacheKey+".js")
 }
 
 // Fetches a remoteUrl but also caches it to the localFilename.
@@ -87,8 +91,8 @@ func UserHomeDir() string {
 
 func createDirs() {
 	DenoDir = path.Join(UserHomeDir(), ".deno")
-	CompileDir = path.Join(DenoDir, "compile")
-	err := os.MkdirAll(CompileDir, 0700)
+	CacheDir = path.Join(DenoDir, "cache")
+	err := os.MkdirAll(CacheDir, 0700)
 	check(err)
 	SrcDir = path.Join(DenoDir, "src")
 	err = os.MkdirAll(SrcDir, 0700)
diff --git a/deno_dir_test.go b/deno_dir_test.go
index fa3d68aedd..2e98461eb7 100644
--- a/deno_dir_test.go
+++ b/deno_dir_test.go
@@ -5,16 +5,16 @@ import (
 	"testing"
 )
 
-func SetCompileDirForTest(prefix string) {
+func SetCacheDirForTest(prefix string) {
 	dir, err := ioutil.TempDir("", prefix)
 	if err != nil {
 		panic(err)
 	}
-	CompileDir = dir
+	CacheDir = dir
 }
 
 func TestLoadOutputCodeCache(t *testing.T) {
-	SetCompileDirForTest("TestLoadOutputCodeCache")
+	SetCacheDirForTest("TestLoadOutputCodeCache")
 
 	filename := "Hello.ts"
 	sourceCodeBuf := []byte("1+2")
diff --git a/main.go b/main.go
index 68ef8fb7af..d557ab2045 100644
--- a/main.go
+++ b/main.go
@@ -2,7 +2,6 @@ package main
 
 import (
 	"flag"
-	"fmt"
 	"github.com/ry/v8worker2"
 	"io/ioutil"
 	"log"
@@ -15,22 +14,17 @@ var flagV8Options = flag.Bool("v8-options", false, "Print V8 command line option
 var flagDebug = flag.Bool("debug", false, "Enable debug output.")
 var flagGoProf = flag.String("goprof", "", "Write golang cpu profile to file.")
 
-var DenoDir string
-var CompileDir string
-var SrcDir string
-
 func stringAsset(path string) string {
 	data, err := Asset("dist/" + path)
 	check(err)
 	return string(data)
 }
 
-func main() {
+func FlagsParse() []string {
 	flag.Parse()
 	args := flag.Args()
 	if *flagV8Options {
 		args = append(args, "--help")
-		fmt.Println(args)
 	}
 	args = v8worker2.SetFlags(args)
 
@@ -38,6 +32,11 @@ func main() {
 	if !*flagDebug {
 		log.SetOutput(ioutil.Discard)
 	}
+	return args
+}
+
+func main() {
+	args := FlagsParse()
 
 	// Maybe start Golang CPU profiler.
 	// Use --prof for profiling JS.