Examples with Getopt org.opensolaris.opengrok.util.Getopt used on opensource projects

Example 1 with Getopt

use of org.opensolaris.opengrok.util.Getopt in project OpenGrok by OpenGrok.

the class Messages method main.

public static void main(String[] argv) {
    String type = null;
    String text = null;
    List<String> tags = new ArrayList<>();
    String className = null;
    long expire = -1;
    String server = null;
    int port = -1;
    String filepath = null;
    String x;
    Getopt getopt = new Getopt(argv, "c:e:f:g:hm:p:s:t:?");
    try {
        getopt.parse();
    } catch (ParseException ex) {
        System.err.println("Messages: " + ex.getMessage());
        b_usage();
        System.exit(1);
    }
    int cmd;
    File f;
    getopt.reset();
    while ((cmd = getopt.getOpt()) != -1) {
        switch(cmd) {
            case 'c':
                className = getopt.getOptarg();
                break;
            case 'e':
                x = getopt.getOptarg();
                try {
                    expire = Long.parseLong(x) * 1000;
                } catch (NumberFormatException e) {
                    System.err.println("Cannot parse " + x + " into long");
                    b_usage();
                    System.exit(1);
                }
                break;
            case 'f':
                filepath = getopt.getOptarg();
                break;
            case 'g':
                tags.add(getopt.getOptarg());
                break;
            case 'h':
                a_usage();
                System.exit(0);
                break;
            case 'm':
                type = getopt.getOptarg();
                break;
            case 'p':
                x = getopt.getOptarg();
                try {
                    port = Integer.parseInt(x);
                } catch (NumberFormatException e) {
                    System.err.println("Cannot parse " + x + " into integer");
                    b_usage();
                    System.exit(1);
                }
                break;
            case 's':
                server = getopt.getOptarg();
                break;
            case 't':
                text = getopt.getOptarg();
                break;
            case '?':
                a_usage();
                System.exit(0);
                break;
            default:
                System.err.println("Internal Error - Not implemented option: " + (char) cmd);
                b_usage();
                System.exit(1);
                break;
        }
    }
    if (type == null) {
        type = "normal";
    }
    if (server == null) {
        server = "localhost";
    }
    if (port == -1) {
        port = 2424;
    }
    Message m = Message.createMessage(type);
    if (m == null) {
        System.err.println("Uknown message type " + type);
        b_usage();
        System.exit(1);
    }
    if (filepath != null) {
        try {
            m.setTextFromFile(filepath);
        } catch (IOException ex) {
            System.err.println("Cannot read '" + filepath + "': " + ex);
            System.exit(1);
        }
    } else {
        m.setText(text);
    }
    m.setClassName(className);
    for (String tag : tags) {
        m.addTag(tag);
    }
    if (expire != -1 && expire > System.currentTimeMillis()) {
        m.setExpiration(new Date(expire));
    }
    try {
        m.validate();
    } catch (Exception e) {
        System.err.println("This message is not valid:");
        System.err.println(e.getLocalizedMessage());
        System.exit(1);
    }
    try {
        byte[] out = m.write(server, port);
        if (out != null) {
            System.out.write(out);
        }
    } catch (IOException ex) {
        System.err.println(ex.getMessage());
        ex.printStackTrace(System.err);
        System.exit(1);
    }
}

Example 2 with Getopt

use of org.opensolaris.opengrok.util.Getopt in project OpenGrok by OpenGrok.

the class Indexer method main.

/**
     * Program entry point
     *
     * @param argv argument vector
     */
@SuppressWarnings("PMD.UseStringBufferForStringAppends")
public static void main(String[] argv) {
    //this won't count JVM creation though
    Statistics stats = new Statistics();
    boolean runIndex = true;
    boolean update = true;
    boolean optimizedChanged = false;
    ArrayList<String> zapCache = new ArrayList<>();
    CommandLineOptions cmdOptions = new CommandLineOptions();
    if (argv.length == 0) {
        System.err.println(cmdOptions.getUsage());
        System.exit(1);
    } else {
        Executor.registerErrorHandler();
        boolean searchRepositories = false;
        ArrayList<String> subFiles = new ArrayList<>();
        ArrayList<String> subFilesList = new ArrayList<>();
        ArrayList<String> repositories = new ArrayList<>();
        HashSet<String> allowedSymlinks = new HashSet<>();
        String configFilename = null;
        String configHost = null;
        boolean addProjects = false;
        boolean refreshHistory = false;
        String defaultProject = null;
        boolean listFiles = false;
        boolean listRepos = false;
        boolean createDict = false;
        int noThreads = 2 + (2 * Runtime.getRuntime().availableProcessors());
        String host = null;
        int port = 0;
        // Parse command line options:
        Getopt getopt = new Getopt(argv, cmdOptions.getCommandString());
        try {
            getopt.parse();
        } catch (ParseException ex) {
            System.err.println("OpenGrok: " + ex.getMessage());
            System.err.println(cmdOptions.getUsage());
            System.exit(1);
        }
        try {
            Configuration cfg = null;
            int cmd;
            // will try to overwrite options..
            while ((cmd = getopt.getOpt()) != -1) {
                if (cmd == 'R') {
                    cfg = Configuration.read(new File(getopt.getOptarg()));
                    break;
                }
            }
            if (cfg == null) {
                cfg = new Configuration();
            }
            // Now we can handle all the other options..
            getopt.reset();
            while ((cmd = getopt.getOpt()) != -1) {
                switch(cmd) {
                    case 'A':
                        {
                            String[] arg = getopt.getOptarg().split(":");
                            boolean prefix = false;
                            if (arg.length != 2) {
                                A_usage();
                            }
                            if (arg[0].endsWith(".")) {
                                arg[0] = arg[0].substring(0, arg[0].lastIndexOf('.')).toUpperCase();
                                prefix = true;
                            } else if (arg[0].startsWith(".")) {
                                arg[0] = arg[0].substring(arg[0].lastIndexOf('.') + 1).toUpperCase();
                            } else {
                                A_usage();
                            }
                            if (arg[1].equals("-")) {
                                if (prefix) {
                                    AnalyzerGuru.addPrefix(arg[0], null);
                                } else {
                                    AnalyzerGuru.addExtension(arg[0], null);
                                }
                                break;
                            }
                            if (prefix) {
                                try {
                                    AnalyzerGuru.addPrefix(arg[0], AnalyzerGuru.findFactory(arg[1]));
                                } catch (ClassNotFoundException | IllegalAccessException | InstantiationException e) {
                                    LOGGER.log(Level.SEVERE, "Unable to use {0} as a FileAnalyzerFactory", arg[1]);
                                    LOGGER.log(Level.SEVERE, "Stack: ", e.fillInStackTrace());
                                    System.exit(1);
                                }
                            } else {
                                try {
                                    AnalyzerGuru.addExtension(arg[0], AnalyzerGuru.findFactory(arg[1]));
                                } catch (ClassNotFoundException | IllegalAccessException | InstantiationException e) {
                                    LOGGER.log(Level.SEVERE, "Unable to use {0} as a FileAnalyzerFactory", arg[1]);
                                    LOGGER.log(Level.SEVERE, "Stack: ", e.fillInStackTrace());
                                    System.exit(1);
                                }
                            }
                        }
                        break;
                    case 'a':
                        if (getopt.getOptarg().equalsIgnoreCase(ON)) {
                            cfg.setAllowLeadingWildcard(true);
                        } else if (getopt.getOptarg().equalsIgnoreCase(OFF)) {
                            cfg.setAllowLeadingWildcard(false);
                        } else {
                            System.err.println("ERROR: You should pass either \"on\" or \"off\" as argument to -a");
                            System.err.println("       Ex: \"-a on\" will allow a search to start with a wildcard");
                            System.err.println("           \"-a off\" will disallow a search to start with a wildcard");
                            System.exit(1);
                        }
                        break;
                    case 'B':
                        cfg.setUserPage(getopt.getOptarg());
                        break;
                    case 'C':
                        cfg.setPrintProgress(true);
                        break;
                    case 'c':
                        cfg.setCtags(getopt.getOptarg());
                        break;
                    case 'd':
                        {
                            File dataRoot = new File(getopt.getOptarg());
                            if (!dataRoot.exists() && !dataRoot.mkdirs()) {
                                System.err.println("ERROR: Cannot create data root");
                                System.exit(1);
                            }
                            if (!dataRoot.isDirectory()) {
                                System.err.println("ERROR: Data root must be a directory");
                                System.exit(1);
                            }
                            cfg.setDataRoot(dataRoot.getCanonicalPath());
                            break;
                        }
                    case 'e':
                        cfg.setGenerateHtml(false);
                        break;
                    case 'G':
                        cfg.setTagsEnabled(true);
                        break;
                    case 'H':
                        refreshHistory = true;
                        break;
                    case 'h':
                        repositories.add(getopt.getOptarg());
                        break;
                    case 'I':
                        cfg.getIncludedNames().add(getopt.getOptarg());
                        break;
                    case 'i':
                        cfg.getIgnoredNames().add(getopt.getOptarg());
                        break;
                    case 'K':
                        listRepos = true;
                        break;
                    case 'k':
                        zapCache.add(getopt.getOptarg());
                        break;
                    case 'L':
                        cfg.setWebappLAF(getopt.getOptarg());
                        break;
                    case 'l':
                        if (getopt.getOptarg().equalsIgnoreCase(ON)) {
                            cfg.setUsingLuceneLocking(true);
                        } else if (getopt.getOptarg().equalsIgnoreCase(OFF)) {
                            cfg.setUsingLuceneLocking(false);
                        } else {
                            System.err.println("ERROR: You should pass either \"on\" or \"off\" as argument to -l");
                            System.err.println("       Ex: \"-l on\" will enable locks in Lucene");
                            System.err.println("           \"-l off\" will disable locks in Lucene");
                        }
                        break;
                    case 'm':
                        {
                            try {
                                cfg.setRamBufferSize(Double.parseDouble(getopt.getOptarg()));
                            } catch (NumberFormatException exp) {
                                System.err.println("ERROR: Failed to parse argument to \"-m\": " + exp.getMessage());
                                System.exit(1);
                            }
                            break;
                        }
                    case 'N':
                        allowedSymlinks.add(getopt.getOptarg());
                        break;
                    case 'n':
                        runIndex = false;
                        break;
                    case 'O':
                        {
                            boolean oldval = cfg.isOptimizeDatabase();
                            if (getopt.getOptarg().equalsIgnoreCase(ON)) {
                                cfg.setOptimizeDatabase(true);
                            } else if (getopt.getOptarg().equalsIgnoreCase(OFF)) {
                                cfg.setOptimizeDatabase(false);
                            } else {
                                System.err.println("ERROR: You should pass either \"on\" or \"off\" as argument to -O");
                                System.err.println("       Ex: \"-O on\" will optimize the database as part of the index generation");
                                System.err.println("           \"-O off\" disable optimization of the index database");
                            }
                            if (oldval != cfg.isOptimizeDatabase()) {
                                optimizedChanged = true;
                            }
                            break;
                        }
                    case 'o':
                        String CTagsExtraOptionsFile = getopt.getOptarg();
                        File CTagsFile = new File(CTagsExtraOptionsFile);
                        if (!(CTagsFile.isFile() && CTagsFile.canRead())) {
                            System.err.println("ERROR: File '" + CTagsExtraOptionsFile + "' not found for the -o option");
                            System.exit(1);
                        }
                        System.err.println("INFO: file with extra " + "options for ctags: " + CTagsExtraOptionsFile);
                        cfg.setCTagsExtraOptionsFile(CTagsExtraOptionsFile);
                        break;
                    case 'P':
                        addProjects = true;
                        break;
                    case 'p':
                        defaultProject = getopt.getOptarg();
                        break;
                    case 'Q':
                        if (getopt.getOptarg().equalsIgnoreCase(ON)) {
                            cfg.setQuickContextScan(true);
                        } else if (getopt.getOptarg().equalsIgnoreCase(OFF)) {
                            cfg.setQuickContextScan(false);
                        } else {
                            System.err.println("ERROR: You should pass either \"on\" or \"off\" as argument to -Q");
                            System.err.println("       Ex: \"-Q on\" will just scan a \"chunk\" of the file and insert \"[..all..]\"");
                            System.err.println("           \"-Q off\" will try to build a more accurate list by reading the complete file.");
                        }
                        break;
                    case 'q':
                        cfg.setVerbose(false);
                        LoggerUtil.setBaseConsoleLogLevel(Level.WARNING);
                        break;
                    case 'R':
                        // already handled
                        break;
                    case 'r':
                        if (getopt.getOptarg().equalsIgnoreCase(ON)) {
                            cfg.setRemoteScmSupported(Configuration.RemoteSCM.ON);
                        } else if (getopt.getOptarg().equalsIgnoreCase(OFF)) {
                            cfg.setRemoteScmSupported(Configuration.RemoteSCM.OFF);
                        } else if (getopt.getOptarg().equalsIgnoreCase(DIRBASED)) {
                            cfg.setRemoteScmSupported(Configuration.RemoteSCM.DIRBASED);
                        } else if (getopt.getOptarg().equalsIgnoreCase(UIONLY)) {
                            cfg.setRemoteScmSupported(Configuration.RemoteSCM.UIONLY);
                        } else {
                            System.err.println("ERROR: You should pass either \"on\" or \"off\" or \"uionly\" as argument to -r");
                            System.err.println("       Ex: \"-r on\" will allow retrieval for remote SCM systems");
                            System.err.println("           \"-r off\" will ignore SCM for remote systems");
                            System.err.println("           \"-r dirbased\" will allow retrieval during history index " + "only for repositories which allow getting history for directories");
                            System.err.println("           \"-r uionly\" will support remote SCM for UI only");
                        }
                        break;
                    case 'S':
                        searchRepositories = true;
                        break;
                    case 's':
                        {
                            File sourceRoot = new File(getopt.getOptarg());
                            if (!sourceRoot.isDirectory()) {
                                System.err.println("ERROR: Source root " + getopt.getOptarg() + " must be a directory");
                                System.exit(1);
                            }
                            cfg.setSourceRoot(sourceRoot.getCanonicalPath());
                            break;
                        }
                    case 'T':
                        try {
                            noThreads = Integer.parseInt(getopt.getOptarg());
                        } catch (NumberFormatException exp) {
                            System.err.println("ERROR: Failed to parse argument to \"-T\": " + exp.getMessage());
                            System.exit(1);
                        }
                        break;
                    case 't':
                        try {
                            int tmp = Integer.parseInt(getopt.getOptarg());
                            cfg.setTabSize(tmp);
                        } catch (NumberFormatException exp) {
                            System.err.println("ERROR: Failed to parse argument to \"-t\": " + exp.getMessage());
                            System.exit(1);
                        }
                        break;
                    case 'U':
                        configHost = getopt.getOptarg();
                        break;
                    case 'V':
                        System.out.println(Info.getFullVersion());
                        System.exit(0);
                        break;
                    case 'v':
                        cfg.setVerbose(true);
                        LoggerUtil.setBaseConsoleLogLevel(Level.INFO);
                        break;
                    case 'W':
                        configFilename = getopt.getOptarg();
                        break;
                    case 'w':
                        {
                            String webapp = getopt.getOptarg();
                            if (webapp.charAt(0) != '/' && !webapp.startsWith("http")) {
                                webapp = "/" + webapp;
                            }
                            if (webapp.endsWith("/")) {
                                cfg.setUrlPrefix(webapp + "s?");
                            } else {
                                cfg.setUrlPrefix(webapp + "/s?");
                            }
                        }
                        break;
                    case 'X':
                        cfg.setUserPageSuffix(getopt.getOptarg());
                        break;
                    case 'z':
                        try {
                            cfg.setScanningDepth(Integer.parseInt(getopt.getOptarg()));
                        } catch (NumberFormatException exp) {
                            System.err.println("ERROR: Failed to parse argument to \"-z\": " + exp.getMessage());
                            System.exit(1);
                        }
                        break;
                    case '?':
                        System.err.println(cmdOptions.getUsage());
                        System.exit(0);
                        break;
                    default:
                        System.err.println("Internal Error - Unimplemented cmdline option: " + (char) cmd);
                        System.exit(1);
                }
            }
            if (configHost != null) {
                String[] configHostArray = configHost.split(":");
                if (configHostArray.length == 2) {
                    host = configHostArray[0];
                    try {
                        port = Integer.parseInt(configHostArray[1]);
                    } catch (NumberFormatException ex) {
                        System.err.println("Failed to parse: " + configHost);
                        System.exit(1);
                    }
                } else {
                    System.err.println("Syntax error: ");
                    for (String s : configHostArray) {
                        System.err.println(s);
                    }
                    System.exit(1);
                }
            }
            List<Class<? extends Repository>> repositoryClasses = RepositoryFactory.getRepositoryClasses();
            for (Class<? extends Repository> clazz : repositoryClasses) {
                try {
                    Field f = clazz.getDeclaredField("CMD_PROPERTY_KEY");
                    Object key = f.get(null);
                    if (key != null) {
                        cfg.setRepoCmd(clazz.getCanonicalName(), System.getProperty(key.toString()));
                    }
                } catch (Exception e) {
                // don't care
                }
            }
            //logging starts here
            if (cfg.isVerbose()) {
                String fn = LoggerUtil.getFileHandlerPattern();
                if (fn != null) {
                    System.out.println("Logging filehandler pattern: " + fn);
                }
            }
            // automatically allow symlinks that are directly in source root
            String file = cfg.getSourceRoot();
            if (file != null) {
                File sourceRootFile = new File(file);
                File[] projectDirs = sourceRootFile.listFiles();
                if (projectDirs != null) {
                    for (File projectDir : projectDirs) {
                        if (!projectDir.getCanonicalPath().equals(projectDir.getAbsolutePath())) {
                            allowedSymlinks.add(projectDir.getAbsolutePath());
                        }
                    }
                }
            }
            allowedSymlinks.addAll(cfg.getAllowedSymlinks());
            cfg.setAllowedSymlinks(allowedSymlinks);
            // Assemble the unprocessed command line arguments (possibly
            // a list of paths). This will be used to perform more fine
            // grained checking in invalidateRepositories().
            int optind = getopt.getOptind();
            if (optind != -1) {
                while (optind < argv.length) {
                    subFilesList.add(cfg.getSourceRoot() + argv[optind++]);
                }
            }
            // Set updated configuration in RuntimeEnvironment.
            RuntimeEnvironment env = RuntimeEnvironment.getInstance();
            env.setConfiguration(cfg, subFilesList);
            /*
                 * Add paths to directories under source root. If projects
                 * are enabled the path should correspond to a project because
                 * project path is necessary to correctly set index directory
                 * (otherwise the index files will end up in index data root
                 * directory and not per project data root directory).
                 * For the check we need to have 'env' already set.
                 */
            for (String path : subFilesList) {
                String srcPath = env.getSourceRootPath();
                if (srcPath == null) {
                    System.err.println("Error getting source root from environment. Exiting.");
                    System.exit(1);
                }
                path = path.substring(srcPath.length());
                if (env.hasProjects()) {
                    // The paths need to correspond to a project.
                    if (Project.getProject(path) != null) {
                        subFiles.add(path);
                    } else {
                        System.err.println("The path " + path + " does not correspond to a project");
                    }
                } else {
                    subFiles.add(path);
                }
            }
            if (!subFilesList.isEmpty() && subFiles.isEmpty()) {
                System.err.println("None of the paths were added, exiting");
                System.exit(1);
            }
            // Get history first.
            getInstance().prepareIndexer(env, searchRepositories, addProjects, defaultProject, configFilename, refreshHistory, listFiles, createDict, subFiles, repositories, zapCache, listRepos);
            if (listRepos || !zapCache.isEmpty()) {
                return;
            }
            // And now index it all.
            if (runIndex || (optimizedChanged && env.isOptimizeDatabase())) {
                IndexChangedListener progress = new DefaultIndexChangedListener();
                getInstance().doIndexerExecution(update, noThreads, subFiles, progress);
            }
            // or send new configuration to the web application in the case of full reindex.
            if (host != null) {
                if (!subFiles.isEmpty()) {
                    getInstance().refreshSearcherManagers(env, subFiles, host, port);
                } else {
                    getInstance().sendToConfigHost(env, host, port);
                }
            }
        } catch (IndexerException ex) {
            LOGGER.log(Level.SEVERE, "Exception running indexer", ex);
            System.err.println(cmdOptions.getUsage());
            System.exit(1);
        } catch (Throwable e) {
            System.err.println("Exception: " + e.getLocalizedMessage());
            LOGGER.log(Level.SEVERE, "Unexpected Exception", e);
            System.exit(1);
        } finally {
            stats.report(LOGGER);
        }
    }
}

Example 3 with Getopt

use of org.opensolaris.opengrok.util.Getopt in project OpenGrok by OpenGrok.

the class Search method parseCmdLine.

@SuppressWarnings({ "PMD.SwitchStmtsShouldHaveDefault" })
protected boolean parseCmdLine(String[] argv) {
    engine = new SearchEngine();
    Getopt getopt = new Getopt(argv, "R:d:r:p:h:f:t:");
    try {
        getopt.parse();
    } catch (ParseException e) {
        System.err.println(e.getMessage());
        System.err.println(usage);
        return false;
    }
    int cmd;
    while ((cmd = getopt.getOpt()) != -1) {
        switch(cmd) {
            case 'R':
                try {
                    RuntimeEnvironment.getInstance().readConfiguration(new File(getopt.getOptarg()));
                } catch (IOException e) {
                    System.err.println("Failed to read config file: ");
                    System.err.println(e.getMessage());
                    return false;
                }
                break;
            case 'd':
                engine.setDefinition(getopt.getOptarg());
                break;
            case 'r':
                engine.setSymbol(getopt.getOptarg());
                break;
            case 'p':
                engine.setFile(getopt.getOptarg());
                break;
            case 'h':
                engine.setHistory(getopt.getOptarg());
                break;
            case 'f':
                engine.setFreetext(getopt.getOptarg());
                break;
            case 't':
                engine.setType(getopt.getOptarg());
                break;
        }
    }
    return true;
}

Example 4 with Getopt

use of org.opensolaris.opengrok.util.Getopt in project OpenGrok by OpenGrok.

the class Groups method main.

public static void main(String[] argv) {
    PrintStream out = System.out;
    File outFile = null;
    Configuration cfg = new Configuration();
    String groupname = null;
    String grouppattern = null;
    String parent = null;
    boolean list = false;
    boolean delete = false;
    boolean empty = false;
    String match = null;
    Getopt getopt = new Getopt(argv, "dehi:lm:n:o:p:r:?");
    try {
        getopt.parse();
    } catch (ParseException ex) {
        System.err.println("Groups: " + ex.getMessage());
        usage();
        System.exit(1);
    }
    try {
        int cmd;
        File f;
        getopt.reset();
        while ((cmd = getopt.getOpt()) != -1) {
            switch(cmd) {
                case 'd':
                    delete = true;
                    break;
                case 'e':
                    empty = true;
                    break;
                case 'h':
                    usage();
                    System.exit(0);
                    break;
                case 'i':
                    f = new File(getopt.getOptarg());
                    try {
                        cfg = Configuration.read(f);
                    } catch (ArrayIndexOutOfBoundsException ex) {
                        System.err.println("An error occured - this may mean that the input file is not well-formated.");
                        System.err.println();
                        ex.printStackTrace(System.err);
                        System.exit(3);
                    }
                    break;
                case 'l':
                    list = true;
                    break;
                case 'm':
                    match = getopt.getOptarg();
                    break;
                case 'n':
                    groupname = getopt.getOptarg();
                    break;
                case 'o':
                    outFile = new File(getopt.getOptarg());
                    break;
                case 'p':
                    parent = getopt.getOptarg();
                    break;
                case 'r':
                    grouppattern = getopt.getOptarg();
                    break;
                case '?':
                    usage();
                    System.exit(0);
                    break;
                default:
                    System.err.println("Internal Error - Not implemented option: " + (char) cmd);
                    usage();
                    System.exit(1);
                    break;
            }
        }
    } catch (FileNotFoundException ex) {
        System.err.println("An error occured - file does not exist");
        ex.printStackTrace(System.err);
        System.exit(3);
    } catch (IOException ex) {
        System.err.println("An uknown error occured - the input file may be corrupted");
        ex.printStackTrace(System.err);
        System.exit(3);
    }
    if (match != null) {
        // perform matching
        if (parent != null || groupname != null || grouppattern != null) {
            System.err.println("Match option should be used without parent|groupname|groupregex options");
            usage();
            System.exit(1);
        }
        matchGroups(System.out, cfg.getGroups(), match);
    } else if (empty) {
        // just list the groups
        if (parent != null || groupname != null || grouppattern != null) {
            System.err.println("Match option should be used without parent|groupname|groupregex options");
            usage();
            System.exit(1);
        }
        printOut(false, cfg, out);
    } else if (delete) {
        // perform delete
        if (parent != null || grouppattern != null) {
            System.err.println("Delete option should be used without parent|groupregex options");
            usage();
            System.exit(1);
        }
        if (groupname == null) {
            System.err.println("You must specify the group name");
            usage();
            System.exit(1);
        }
        deleteGroup(cfg.getGroups(), groupname);
        out = prepareOutput(outFile);
        printOut(list, cfg, out);
    } else if (groupname != null && grouppattern != null) {
        // perform insert/update. parent may be null
        if (!modifyGroup(cfg.getGroups(), groupname, grouppattern, parent)) {
            System.err.println("Parent group does not exist \"" + parent + "\"");
        } else {
            out = prepareOutput(outFile);
            printOut(list, cfg, out);
        }
    } else if (list) {
        // just list the groups
        if (groupname != null) {
            System.err.println("List option should be used without groupname options");
            usage();
            System.exit(1);
        }
        printOut(list, cfg, out);
    } else {
        System.err.println("Wrong combination of options. See usage.");
        usage();
        System.exit(2);
    }
}