ToolMain.java

package codechicken.lib.tool;

import codechicken.lib.tool.module.ModuleQBConverter;

public class ToolMain {
    public static interface Module {
        public void main(String[] args);

        public String name();

        public void printHelp();
    }

    public static Module[] modules = new Module[] { new ModuleQBConverter() };

    private static void printHelp() {
        System.out.println("Usage: [module] [args]");
        System.out.println("  Modules: ");
        for (Module m : modules) {
            System.out.println("   - " + m.name());
        }
        System.out.println("-h [module] for module help");
    }

    public static void main(String[] args) {
        if (args.length > 0) {
            for (Module m : modules) {
                if (args[0].equals(m.name())) {
                    String[] args2 = new String[args.length - 1];
                    System.arraycopy(args, 1, args2, 0, args2.length);
                    m.main(args2);
                    return;
                }
            }
            if (args[0].equals("-h") && args.length >= 2) {
                for (Module m : modules) {
                    if (args[1].equals(m.name())) {
                        m.printHelp();
                        return;
                    }
                }
            }
        }
        printHelp();
    }
}