package main

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

func main() {
	storageDir := `C:\Users\Elijah\Desktop\Drive\data`
	path1 := `C:\Users\Elijah\Desktop\Drive\data\test.docx`
	path2 := `C:\Users\Elijah\Desktop\Drive\data\folder\test.docx`

	relPath1, _ := filepath.Rel(storageDir, path1)
	relPathSlash1 := filepath.ToSlash(relPath1)

	relPath2, _ := filepath.Rel(storageDir, path2)
	relPathSlash2 := filepath.ToSlash(relPath2)

	fmt.Printf("Root file: %q -> %q\n", relPath1, relPathSlash1)
	fmt.Printf("Sub file:  %q -> %q\n", relPath2, relPathSlash2)

	fmt.Printf("Clean . : %q\n", filepath.Clean("."))
	fmt.Printf("Join . and file: %q\n", filepath.Join(".", "test.docx"))
}