void initialize()

in daemon-m40/src/main/java/org/apache/maven/cli/DaemonMavenCli.java [247:302]
44 lines of code
10 McCabe index (conditional complexity)

    void initialize(CliRequest cliRequest) throws ExitException {
        cliRequest.classWorld = classWorld;

        if (cliRequest.workingDirectory == null) {
            cliRequest.workingDirectory = System.getProperty("user.dir");
        }

        if (cliRequest.multiModuleProjectDirectory == null) {
            buildEventListener.log(String.format("-D%s system property is not set.", MULTIMODULE_PROJECT_DIRECTORY));
            throw new ExitException(1);
        }
        System.setProperty("maven.multiModuleProjectDirectory", cliRequest.multiModuleProjectDirectory.toString());

        // We need to locate the top level project which may be pointed at using
        // the -f/--file option.  However, the command line isn't parsed yet, so
        // we need to iterate through the args to find it and act upon it.
        Path topDirectory = Paths.get(cliRequest.workingDirectory);
        boolean isAltFile = false;
        for (String arg : cliRequest.args) {
            if (isAltFile) {
                // this is the argument following -f/--file
                Path path = topDirectory.resolve(arg);
                if (Files.isDirectory(path)) {
                    topDirectory = path;
                } else if (Files.isRegularFile(path)) {
                    topDirectory = path.getParent();
                    if (!Files.isDirectory(topDirectory)) {
                        System.err.println("Directory " + topDirectory
                                + " extracted from the -f/--file command-line argument " + arg + " does not exist");
                        throw new ExitException(1);
                    }
                } else {
                    System.err.println(
                            "POM file " + arg + " specified with the -f/--file command line argument does not exist");
                    throw new ExitException(1);
                }
                break;
            } else {
                // Check if this is the -f/--file option
                isAltFile = arg.equals(String.valueOf(CLIManager.ALTERNATE_POM_FILE)) || arg.equals("file");
            }
        }
        topDirectory = getCanonicalPath(topDirectory);
        cliRequest.topDirectory = topDirectory;
        // We're very early in the process and we don't have the container set up yet,
        // so we rely on the JDK services to eventually lookup a custom RootLocator.
        // This is used to compute {@code session.rootDirectory} but all {@code project.rootDirectory}
        // properties will be compute through the RootLocator found in the container.
        RootLocator rootLocator =
                ServiceLoader.load(RootLocator.class).iterator().next();
        Path rootDirectory = rootLocator.findRoot(topDirectory);
        if (rootDirectory == null) {
            System.err.println(RootLocator.UNABLE_TO_FIND_ROOT_PROJECT_MESSAGE);
        }
        cliRequest.rootDirectory = rootDirectory;
    }