xdgdir

package main

import (
	"fmt"
	"os"

	"go4.org/xdgdir"
)

func main() {
	// Print the absolute path of the current user's XDG_CONFIG_DIR.
	fmt.Println(xdgdir.Config.Path())

	// Read a file from $XDG_CONFIG_DIR/myconfig.json.
	// This will search for a file named "myconfig.json" inside
	// $XDG_CONFIG_DIR and then each entry inside $XDG_CONFIG_DIRS.
	// It opens and returns the first file it finds, or returns an error.
	if f, err := xdgdir.Data.Create("myconfig.json"); err == nil {
		fmt.Fprintln(f, "Hello, World!")
		if err := f.Close(); err != nil {
			fmt.Fprintln(os.Stderr, err)
		}
	} else {
		fmt.Fprintln(os.Stderr, err)
	}

	// Write a file to $XDG_DATA_DIR/myapp/foo.txt
	if f, err := xdgdir.Data.Create("myapp/foo.txt"); err == nil {
		fmt.Fprintln(f, "Hello, World!")
		f.Close()
	} else {
		fmt.Fprintln(os.Stderr, err)
	}
}

Output: