How do I create crossplatform file paths in Go?

小开

Go treats forward slashes (/) as the universal separator across all platforms [1]. "directory/subdirectory/file.txt" will be opened correctly regardless of the runtime operating system.

小开

Use path/filepath instead of path. path is intended for forward slash-separated paths only (such as those used in URLs), while path/filepath manipulates paths across different operating systems.

Example:

package main


import (
"fmt"
"path/filepath"
)


func main() {
path := filepath.Join("home", "hello", "world.txt")
fmt.Println(path)
}

Go Playground: https://go.dev/play/p/2Fpb_vJzvSb

小开

最佳答案

For creating and manipulating OS-specific paths directly use os.PathSeparator and the path/filepath package.

An alternative method is to always use '/' and the path package throughout your program. The path package uses '/' as path separator irrespective of the OS. Before opening or creating a file, convert the /-separated path into an OS-specific path string by calling filepath.FromSlash(path string). Paths returned by the OS can be converted to /-separated paths by calling filepath.ToSlash(path string).

小开

Based on the answer of @EvanShaw and this blog the following code was created:

package main


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


func main() {
p := filepath.FromSlash("path/to/file")
fmt.Println("Path: " + p)
}

returns:

Path: path\to\file

on Windows.