class DockerfileGitHubUtil {

    protected boolean rewriteDockerfile(String img, String tag, BufferedReader reader, StringBuilder strB) throws IOException {
        String line;
        boolean modified = false;
        while ( (line = reader.readLine()) != null ) {
            /* Once true, should stay true. */
            modified = changeIfDockerfileBaseImageLine(img, tag, strB, line) || modified;
        }
        return modified;
    }

    public  DockerfileGitHubUtil(GitHubUtil gitHubUtil);

}