Github names are vital and the smaller they are the better! This tool finds you the smallest github name available.

NeedGithubUsername.java

    private final Log logger = LogFactory.getLog(getClass());

    public void given_i_need_a_github_name() {
        List<String> names = getNamePerms(6);
        for (String name : names) {
            System.out.print('.');
            RestTemplate restTemplate = new RestTemplate();
            String url = "http://github.com/" + name;
            ResponseEntity<String> response = restTemplate.exchange(url, HttpMethod.GET, null, String.class);
            if (response.hasBody() && response.getBody().contains("This is not the web page you are looking for")) {
                logger.info("The name: " + name + "is free!!!");
            }
        }
    }

    private List<String> getNamePerms(int maxLength) {
        if (maxLength == 0) {
            return Collections.singletonList("");
        }

        List<String> names = new ArrayList<>();
        for (String name : getNamePerms(maxLength - 1)) {
            for (char alphabet = 'a'; alphabet <= 'z'; alphabet++) {
                String newName = name + alphabet;
                names.add(newName);
            }
        }
        return names;
    }