Golang : Check to see if *File is a file or directory
Sometimes, we need to write codes that is robust and flexible enough to handle different situation. For example, if a program is going to open up a directory or file. In this simple tutorial, we will learn how to handle the situation when opening up a file or directory with os.Open()
function. We will use the FileInfo.Mode()
function to determine if the object that we opened is a file or directory.
package main
import (
"os"
"fmt"
)
func main() {
object := "./FileDir" // this could be file or directory
fdir, err := os.Open(object)
if err != nil {
fmt.Println(err)
return
}
defer fdir.Close()
finfo, err := fdir.Stat()
if err != nil {
fmt.Println(err)
return
}
switch mode := finfo.Mode(); {
case mode.IsDir():
fmt.Println("object is a directory")
case mode.IsRegular():
fmt.Println("object is a file")
}
}
Hope this tutorial can be useful to you. Remember to check out the SEE ALSO below.
Reference :
See also : Golang : Read directory content with os.Open
By Adam Ng
IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.
Advertisement
Tutorials
+7.4k Golang : Accessing dataframe-go element by row, column and name example
+19.3k Golang : Populate dropdown with html/template example
+22.4k Golang : Read directory content with filepath.Walk()
+12.4k Golang : Get month name from date example
+14k Golang : Human readable time elapsed format such as 5 days ago
+16.4k Golang : How to extract links from web page ?
+15.5k Golang : Find location by IP address and display with Google Map
+11.3k Golang : Fix - does not implement sort.Interface (missing Len method)
+5.9k Golang : Fix opencv.LoadHaarClassifierCascade The node does not represent a user object error
+6.6k Golang : Calculate diameter, circumference, area, sphere surface and volume
+25.3k Golang : Storing cookies in http.CookieJar example
+7.5k Golang : Example of custom handler for Gorilla's Path usage.