package gpgbin import ( "bytes" "fmt" "io" "git.sr.ht/~rjarry/aerc/models" ) // Sign creates a detached signature based on the contents of r func Sign(r io.Reader, from string) ([]byte, string, error) { args := []string{ "--armor", "--detach-sign", "--default-key", from, } g := newGpg(r, args) err := g.cmd.Run() if err != nil { return nil, "", fmt.Errorf("failed to run signing: %w", err) } outRdr := bytes.NewReader(g.stdout.Bytes()) var md models.MessageDetails err = parse(outRdr, &md) if err != nil { return nil, "", fmt.Errorf("failed to parse messagedetails: %v", err) } var buf bytes.Buffer _, _ = io.Copy(&buf, md.Body) return buf.Bytes(), md.Micalg, nil }