Added autoupdater

plugin.yml

@@ -1,6 +1,6 @@
 name: PluginManager
 author: Lenni0451
-version: 1.0
+version: 1.1
 main: net.Lenni0451.SpigotPluginManager.PluginManager
 
 commands:

src/net/Lenni0451/SpigotPluginManager/PluginManager.java

@@ -2,11 +2,14 @@
 
 import java.util.Arrays;
 
+import org.bukkit.Bukkit;
 import org.bukkit.plugin.java.JavaPlugin;
 
 import net.Lenni0451.SpigotPluginManager.commands.PluginManager_Command;
 import net.Lenni0451.SpigotPluginManager.commands.Reload_Command;
 import net.Lenni0451.SpigotPluginManager.tabcomplete.PluginManager_TabComplete;
+import net.Lenni0451.SpigotPluginManager.utils.DownloadUtils;
+import net.Lenni0451.SpigotPluginManager.utils.Logger;
 import net.Lenni0451.SpigotPluginManager.utils.PluginUtils;
 
 public class PluginManager extends JavaPlugin {
@@ -41,6 +44,18 @@ public void onEnable() {
 		this.getCommand("pluginmanager").setExecutor(new PluginManager_Command());
 		this.getCommand("pluginmanager").setAliases(Arrays.asList("pm"));
 		this.getCommand("pluginmanager").setTabCompleter(new PluginManager_TabComplete());
+
+		try {
+			String newestVersion = DownloadUtils.getNewestVersion();
+			if(!newestVersion.equals(this.getDescription().getVersion())) {
+				Logger.sendPrefixMessage(Bukkit.getConsoleSender(), "A new update of PluginManager is available §e(" + this.getDescription().getVersion() + " -> " + newestVersion + ").");
+				Logger.sendPrefixMessage(Bukkit.getConsoleSender(), "You can download it here: §6https://github.com/Lenni0451/SpigotPluginManager/releases/latest/download/PluginManager.jar");
+			} else {
+				Logger.sendPrefixMessage(Bukkit.getConsoleSender(), "You are using the latest version of PluginManager.");
+			}
+		} catch (Throwable e) {
+			Logger.sendPrefixMessage(Bukkit.getConsoleSender(), "§cCould not check for updates.");
+		}
 	}
 
 }

src/net/Lenni0451/SpigotPluginManager/utils/DownloadUtils.java

@@ -110,4 +110,27 @@ public static JsonArray getSpigotMcPluginList(final int count, final int page) t
 		return jsonParser.parse(responseBuilder.toString()).getAsJsonArray();
 	}
 
+	public static String getNewestVersion() throws IOException {
+		//https://github.com/Lenni0451/SpigotPluginManager/releases/tag/1.0
+		URL url = new URL("https://github.com/Lenni0451/SpigotPluginManager/releases/latest");
+		HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
+		connection.setDoInput(true);
+		connection.setRequestProperty("user-agent", PluginManager.getInstance().getConfig().getString("UserAgent"));
+
+		BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream()));
+		StringBuilder responseBuilder = new StringBuilder();
+		String line;
+		while((line = br.readLine()) != null) {
+			responseBuilder.append(line);
+		}
+		br.close();
+
+		String urlBase = "https://github.com/Lenni0451/SpigotPluginManager/releases/tag/";
+		String source = responseBuilder.toString();
+		String version = source.substring(source.indexOf(urlBase) + urlBase.length());
+		version = version.substring(0, version.indexOf("&"));
+
+		return version;
+	}
+
 }