public static final void main()

in apache-rat-core/src/main/java/org/apache/rat/Report.java [49:117]
64 lines of code
15 McCabe index (conditional complexity)

    public static final void main(String[] args) throws Exception {
        final ReportConfiguration configuration = new ReportConfiguration();
        configuration.setHeaderMatcher(Defaults.createDefaultMatcher());
        configuration.setApproveDefaultLicenses(true);
        Options opts = buildOptions();

        CommandLine cl = null;
        try {
            cl = new DefaultParser().parse(opts, args);
        } catch (ParseException e) {
            System.err.println("Please use the \"--help\" option to see a list of valid commands and options");
            System.exit(1);
            return; // dummy return (won't be reached) to avoid Eclipse complaint about possible NPE for "cl"
        }

        if (cl.hasOption(HELP)) {
            printUsage(opts);
        }

        args = cl.getArgs();
        if (args == null || args.length != 1) {
            printUsage(opts);
        } else {
            Report report = new Report(args[0]);

            if (cl.hasOption('a') || cl.hasOption('A')) {
                configuration.setAddingLicenses(true);
                configuration.setAddingLicensesForced(cl.hasOption('f'));
                configuration.setCopyrightMessage(cl.getOptionValue("c"));
            }

            if (cl.hasOption(EXCLUDE_CLI)) {
                String[] excludes = cl.getOptionValues(EXCLUDE_CLI);
                if (excludes != null) {
                    final FilenameFilter filter = parseExclusions(Arrays.asList(excludes));
                    report.setInputFileFilter(filter);
                }
            } else if (cl.hasOption(EXCLUDE_FILE_CLI)) {
                String excludeFileName = cl.getOptionValue(EXCLUDE_FILE_CLI);
                if (excludeFileName != null) {
                    final FilenameFilter filter = parseExclusions(FileUtils.readLines(new File(excludeFileName), Charset.forName("UTF-8")));
                    report.setInputFileFilter(filter);
                }
            }
            if (cl.hasOption('x')) {
                report.report(System.out, configuration);
            } else {
                if (!cl.hasOption(STYLESHEET_CLI)) {
                    report.styleReport(System.out, configuration);
                } else {
                    String[] style = cl.getOptionValues(STYLESHEET_CLI);
                    if (style.length != 1) {
                        System.err.println("please specify a single stylesheet");
                        System.exit(1);
                    }
                    try {
                        report(System.out,
                                report.getDirectory(System.out),
                                new FileInputStream(style[0]),
                                configuration);
                    } catch (FileNotFoundException fnfe) {
                        System.err.println("stylesheet " + style[0]
                                + " doesn't exist");
                        System.exit(1);
                    }
                }
            }
        }
    }