Function FormatPorts

utils/ports.go:94–135

FormatPorts returns a human-friendly string. Consecutive runs of at least five ports are collapsed into ranges (e.g. "8000-8006").

(ports []int)

// FormatPorts returns a human-friendly string. Consecutive runs of at least
// five ports are collapsed into ranges (e.g. "8000-8006").
func FormatPorts(ports []int) string {
	if len(ports) == 0 {
		return ""
	}

	sorted := append([]int(nil), ports...)
	sort.Ints(sorted)

	unique := make([]int, 0, len(sorted))
	for _, p := range sorted {
		if len(unique) == 0 || unique[len(unique)-1] != p {
			unique = append(unique, p)
		}
	}

	var parts []string
	start := unique[0]
	prev := unique[0]

	flush := func(s, e int) {
		if e-s+1 >= minRangeDisplay {
			parts = append(parts, fmt.Sprintf("%d-%d", s, e))
			return
		}
		for p := s; p <= e; p++ {
			parts = append(parts, strconv.Itoa(p))
		}
	}

	for _, p := range unique[1:] {
		if p == prev+1 {
			prev = p
			continue
		}
		flush(start, prev)
		start = p
		prev = p
	}
	flush(start, prev)

	return strings.Join(parts, ", ")
}

func validatePortBounds(port int) error {
	if port < minPort || port > maxPort {