public void downloadAndExtract(String name, Terminal terminal) throws IOException {
if (name == null && url == null) {
throw new IllegalArgumentException("plugin name or url must be supplied with install.");
}
if (!Files.exists(environment.pluginsFile())) {
terminal.println(
"Plugins directory [%s] does not exist. Creating...", environment.pluginsFile());
Files.createDirectory(environment.pluginsFile());
}
if (!Environment.isWritable(environment.pluginsFile())) {
throw new IOException("plugin directory " + environment.pluginsFile() + " is read only");
}
PluginHandle pluginHandle;
if (name != null) {
pluginHandle = PluginHandle.parse(name);
checkForForbiddenName(pluginHandle.name);
} else {
// if we have no name but url, use temporary name that will be overwritten later
pluginHandle = new PluginHandle("temp_name" + new Random().nextInt(), null, null);
}
Path pluginFile = download(pluginHandle, terminal);
extract(pluginHandle, terminal, pluginFile);
}
/** Check that deleting a registered directory causes the key to be cancelled and queued. */
static void testAutomaticCancel(Path dir) throws IOException {
System.out.println("-- Automatic Cancel --");
Path subdir = Files.createDirectory(dir.resolve("bar"));
try (WatchService watcher = FileSystems.getDefault().newWatchService()) {
System.out.format("register %s for events\n", subdir);
WatchKey myKey =
subdir.register(
watcher, new WatchEvent.Kind<?>[] {ENTRY_CREATE, ENTRY_DELETE, ENTRY_MODIFY});
System.out.format("delete: %s\n", subdir);
Files.delete(subdir);
takeExpectedKey(watcher, myKey);
System.out.println("reset key");
if (myKey.reset()) throw new RuntimeException("Key was not cancelled");
if (myKey.isValid()) throw new RuntimeException("Key is still valid");
System.out.println("OKAY");
}
}