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package multierror
import (
"strings"
)
// Join is a drop-in replacement for errors.Join with better formatting.
func Join(errs ...error) error {
n := 0
for _, err := range errs {
if err != nil {
n++
}
}
if n == 0 {
return nil
}
e := &joinError{
errs: make([]error, 0, n),
}
for _, err := range errs {
if err != nil {
e.errs = append(e.errs, err)
}
}
return e
}
type joinError struct {
errs []error
}
func (e *joinError) Error() string {
if len(e.errs) == 1 {
return strings.TrimSpace(e.errs[0].Error())
}
stringErrs := make([]string, 0, len(e.errs))
for _, subErr := range e.errs {
stringErrs = append(stringErrs, strings.Replace(subErr.Error(), "\n", "\n\t", -1))
}
return "* " + strings.Join(stringErrs, "\n* ")
}
func (e *joinError) Unwrap() []error {
return e.errs
}
|
