fix package name

root_dir.go

@@ -0,0 +1,20 @@
+package root_dir
+
+import (
+	"os"
+	"regexp"
+)
+
+func RootDir(projectDirName string) string {
+	if projectDirName == "" {
+		return ""
+	}
+
+	projectName := regexp.MustCompile(`^(.*` + projectDirName + `)`)
+	currentWorkDirectory, _ := os.Getwd()
+	rootPath := projectName.Find([]byte(currentWorkDirectory))
+	if len(rootPath) <= 0 {
+		return ""
+	}
+	return string(rootPath)
+}