func()

in image/resources/filter-exports/filter.go [37:82]

• 38 lines of code
• 12 McCabe index (conditional complexity)

func (f *filter) run() error {
	// no filters, stream the input directly to the output
	if len(f.excludes) == 0 && len(f.includes) == 0 {
		_, err := io.Copy(f.output, f.input)
		return err
	}

	s := bufio.NewScanner(f.input)
	for s.Scan() {
		line := s.Text()
		if line == "" {
			continue
		}

		export := line
		if f.field > 0 {
			var err error
			export, err = extractField(line, f.field-1)
			if err != nil {
				return err
			}
		}

		if !strings.HasSuffix(export, "/") {
			export += "/"
		}

		if !match(export, f.includes, true) {
			if *verbose {
				fmt.Fprintf(os.Stderr, "Skipped \"%s\", did not match include filter", export)
			}
			continue
		}

		if match(export, f.excludes, false) {
			if *verbose {
				fmt.Fprintf(os.Stderr, "Skipped \"%s\", export was excluded", export)
			}
			continue
		}

		fmt.Fprintln(f.output, line)
	}

	return s.Err()
}