Go Systems Programming

Traversing a directory tree

The most important task that find(1) needs to support is being able to visit all files and sub directories starting from a given directory. So, this section will implement this task in Go. The Go code of traverse.go will be presented in three parts. The first part is the expected preamble:

package main 
 
import ( 
   "fmt" 
   "os" 
   "path/filepath" 
) 

The second part is about implementing a function named walkFunction() that will be used as an argument to a Go function named filepath.Walk():

func walkFunction(path string, info os.FileInfo, err error) error { 
   _, err = os.Stat(path) 
   if err != nil { 
         return err 
   } 
 
   fmt.Println(path) 
   return nil 
} 

Once again, the os.Stat() function is used because a successful os.Stat() function ...