public static File getAppData() {
String userHomeDir = System.getProperty("user.home", ".");
String osType = System.getProperty("os.name").toLowerCase(Locale.ENGLISH);
if (osType.contains("win") && System.getenv("APPDATA") != null) {
return new File(new File(System.getenv("APPDATA")), ".minecraft");
} else if (osType.contains("mac")) {
return new File(new File(userHomeDir, "Library"), "Application Support");
} else {
return new File(new File(userHomeDir), ".minecraft");
}
}
public void launch() {
try {
long time = System.nanoTime();
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
monitor = new ProgressMonitor();
monitor.setMaximum(5);
updateState(BootstrapState.UPDATE_CHECK);
{
CountDownLatch latch = new CountDownLatch(2);
runTask(TaskBootstrapUpdateCheck.class, latch);
runTask(TaskInstallerUpdateCheck.class, latch);
latch.await();
}
updateState(BootstrapState.LOAD_DEPENDENCIES);
{
runTask(TaskLoadDependencies.class);
}
updateState(BootstrapState.DOWNLOAD);
{
runTask(TaskDownload.class);
}
updateState(BootstrapState.SETUP_ENVIRONMENT);
{
runTask(TaskCheckJavaVersion.class);
runTask(TaskBuildClasspath.class);
}
System.out.println(
"Took " + ((System.nanoTime() - time) / 1000000f) + "ms to launch installer");
updateState(BootstrapState.START_INSTALLER);
{
runTask(TaskLaunchInstaller.class);
}
updateState(BootstrapState.FINISHED);
} catch (BootstrapException ex) {
handleException(ex);
System.exit(2);
} catch (Exception ex) {
handleException(ex);
System.exit(-1);
} finally {
monitor.close();
}
}