Fix #1614 (#1616)

tools/goctl/util/pathx/file.go

@@ -75,12 +75,23 @@ func FileNameWithoutExt(file string) string {
 
 // GetGoctlHome returns the path value of the goctl, the default path is ~/.goctl, if the path has
 // been set by calling the RegisterGoctlHome method, the user-defined path refers to.
-func GetGoctlHome() (string, error) {
+func GetGoctlHome() (home string, err error) {
+	defer func() {
+		if err != nil {
+			return
+		}
+		info, err := os.Stat(home)
+		if err == nil && !info.IsDir() {
+			os.Rename(home, home+".old")
+			MkdirIfNotExist(home)
+		}
+	}()
 	if len(goctlHome) != 0 {
-		return goctlHome, nil
+		home = goctlHome
+		return
 	}
-
-	return GetDefaultGoctlHome()
+	home, err = GetDefaultGoctlHome()
+	return
 }
 
 // GetDefaultGoctlHome returns the path value of the goctl home where Join $HOME with .goctl.

tools/goctl/util/pathx/file_test.go

@@ -74,3 +74,35 @@ func TestGetGitHome(t *testing.T) {
 	expected := filepath.Join(homeDir, goctlDir, gitDir)
 	assert.Equal(t, expected, actual)
 }
+
+func TestGetGoctlHome(t *testing.T) {
+	t.Run("goctl_is_file", func(t *testing.T) {
+		tmpFile := filepath.Join(t.TempDir(), "a.tmp")
+		backupTempFile := tmpFile + ".old"
+		err := ioutil.WriteFile(tmpFile, nil, 0666)
+		if err != nil {
+			return
+		}
+		RegisterGoctlHome(tmpFile)
+		home, err := GetGoctlHome()
+		if err != nil {
+			return
+		}
+		info, err := os.Stat(home)
+		assert.Nil(t, err)
+		assert.True(t, info.IsDir())
+
+		_, err = os.Stat(backupTempFile)
+		assert.Nil(t, err)
+	})
+
+	t.Run("goctl_is_dir", func(t *testing.T) {
+		RegisterGoctlHome("")
+		dir := t.TempDir()
+		RegisterGoctlHome(dir)
+		home, err := GetGoctlHome()
+		assert.Nil(t, err)
+		assert.Equal(t, dir, home)
+	})
+
+}