$ go get --ldflags="-s -w" --trimpath -u gitlab.com/mjwhitta/errors

package mypackage

import (
    "os"

    "gitlab.com/mjwhitta/errors"
)

func OpenFileByName(name string) (*os.File, error) {
    var e error
    var f *os.File

    if name == "" {
        return nil, errors.New("no name was provided")
    }

    if f, e = os.Open(name); e != nil {
        return nil, errors.Newf("failed to open %s: %w", name, e)
    }

    return f, nil
}