From b1f09e11fcfb871751986edee72329456c05160a Mon Sep 17 00:00:00 2001
From: Richard Chen <i@iochen.com>
Date: Thu, 23 Aug 2018 17:19:48 +0800
Subject: [PATCH] Print error in function main

---
 main.go | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/main.go b/main.go
index 1738c44f..ad709033 100644
--- a/main.go
+++ b/main.go
@@ -87,17 +87,17 @@ func parseEntry(line string) (Entry, error) {
 	return Entry{}, errors.New("Invalid format: " + line)
 }
 
-func DetectPath(path string) string {
-	arrPath := strings.Split(path,":")
-	for _,content := range arrPath {
+func DetectPath(path string) (string, error) {
+	arrPath := strings.Split(path, string(filepath.ListSeparator))
+	for _, content := range arrPath {
 		fullPath := filepath.Join(content, "src", "github.com", "v2ray", "domain-list-community", "data")
 		_, err := os.Stat(fullPath)
 		if err == nil || os.IsExist(err) {
-			return fullPath
+			return fullPath, nil
 		}
 	}
-	fmt.Println("Failed: No file found in GOPATH")
-	return ""
+	err := errors.New("No file found in GOPATH")
+	return "", err
 }
 
 func Load(path string) (*List, error) {
@@ -164,9 +164,13 @@ func ParseList(list *List, ref map[string]*List) (*ParsedList, error) {
 }
 
 func main() {
-	dir := DetectPath(os.Getenv("GOPATH"))
+	dir, err := DetectPath(os.Getenv("GOPATH"))
+	if err != nil {
+		fmt.Println("Failed: ", err)
+		return
+	}
 	ref := make(map[string]*List)
-	err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
+	err = filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			return err
 		}