public static void main()

in freemarker-docgen-cli/src/main/java/org/freemarker/docgen/cli/Main.java [43:91]
45 lines of code
10 McCabe index (conditional complexity)

    public static void main(String[] args)
            throws DocgenException, IOException, SAXException {
        try {
            if (args.length < 2) {
                throw new CommandLineExitException(-1,
                        "Usage: java -jar docgen.jar <srcDir> <dstDir> [option1=value1 ...]");
            }

            Transform tr = new Transform();
            tr.setSourceDirectory(new File(args[0]));
            tr.setDestinationDirectory(new File(args[1]));
            tr.setPrintProgress(true);

            for (int i = 2; i < args.length; i++) {
                String optStr = args[i];
                final int equalsIdx = optStr.indexOf('=');
                if (equalsIdx == -1) {
                    throw new CommandLineExitException(-1, "Options must be in name=value format");
                }
                String name = optStr.substring(0, equalsIdx).trim();
                String value = optStr.substring(equalsIdx + 1).trim();

                if (name.equals("offline")) {
                    tr.setOffline(parseBoolean(value));
                } else if (name.equals("timeZone")) {
                    tr.setTimeZone(TimeZone.getTimeZone(value));
                } else if (name.equals("generateEclipseToC")) {
                    tr.setGenerateEclipseToC(parseBoolean(value));
                } else if (name.startsWith(CUSTOM_VARIABLES_DOT)) {
                    tr.addCustomVariableOverrides(
                            Collections.singletonMap(
                                    name.substring(CUSTOM_VARIABLES_DOT.length()),
                                    value));
                } else if (name.startsWith(INSERTABLE_FILES_DOT)) {
                    tr.addInsertableFileOverrides(
                            Collections.singletonMap(
                                    name.substring(INSERTABLE_FILES_DOT.length()),
                                    value));
                } else {
                    throw new CommandLineExitException(-1, "Unsupported option: " + name);
                }
            }

            tr.execute();
        } catch (CommandLineExitException e) {
            p(e.getMessage().replaceAll("\n", System.lineSeparator()));
            System.exit(e.getExitCode());
        }
    }