op-geth/ethutil/path.go

package ethutil

import (
	"os/user"
	"strings"
)

func ExpandHomePath(p string) (path string) {
	path = p

	// Check in case of paths like "/something/~/something/"
	if path[:2] == "~/" {
		usr, _ := user.Current()
		dir := usr.HomeDir

		path = strings.Replace(p, "~", dir, 1)
	}

	return
}