return String.format(urlTemplate, gitRef)
        }
    }

    private static final Map<CI, String> CI_INJECTION_SCRIPT_CONTENTS = new ConcurrentHashMap<>()

    private static String getCiInjectionScriptContent(CI ci) {
        return CI_INJECTION_SCRIPT_CONTENTS.computeIfAbsent(ci) { new URL(it.getUrl()).getText(StandardCharsets.UTF_8.name()) }
    }

    private static final List<String> UNSUPPORTED = [
        "2.4.2",