hard-code file path for deployment check

deployment-script.sh

@@ -6,6 +6,7 @@ $(date "+%Y-%m-%d %I:%M:%S%p UTC%:z")
 
 # build the thing into a big jar with all the dependencies
 mvn clean compile assembly:single
+dd if=/dev/urandom bs=1 count=20 | base64 > id.txt
 # TODO: Somehow tell a service that manages the bot to shut it down and replace it with the updated version?
 
 echo "================================================================================

src/main/java/linux/general/hackyquizbot/Main.java

@@ -2,6 +2,9 @@ package linux.general.hackyquizbot;
 
 import org.javacord.api.DiscordApi;
 import org.javacord.api.DiscordApiBuilder;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.util.Scanner;
 
 public class Main{
 
@@ -9,6 +12,10 @@ public class Main {
         // Insert your bot's token here
         String token = args[0];
         
+        CheckDeploy check = new CheckDeploy(3000, "/var/www/deployment/Hacky-Quizbot/id.txt");
+        check.start();
+        
+        
         DiscordApi api = new DiscordApiBuilder().setToken(token).login().join();
 
         // Add a listener which answers with "Pong!" if someone writes "!ping"
@@ -20,6 +27,52 @@ public class Main {
 
         // Print the invite url of your bot
         System.out.println("You can invite the bot by using the following url: " + api.createBotInvite());
-    }
         
     }
+    
+    public static class CheckDeploy extends Thread{
+    	private int interval;
+    	private String id;
+    	private String filename;
+    	
+    	public CheckDeploy(int interval, String filename) {
+    		this.interval = interval;
+    		this.filename = filename;
+    	}
+    	
+    	public String grabId() {
+    		File file = new File(this.filename);
+    		Scanner reader;
+    		String id = new String();
+    		
+    		try {
+    			reader = new Scanner(file);
+    			while(reader.hasNextLine()) {
+        			id = reader.nextLine();
+        		}
+    			reader.close();
+    		}catch (FileNotFoundException e) {
+    			System.err.println("File not found");
+    		}
+    		
+    		return id;
+    	}
+    	
+    	public void run() {
+    		this.id = this.grabId(); //replace with correct filename
+    		while(true) {
+    			String new_id = this.grabId();
+    			
+    			if(!new_id.equals(this.id)) {
+    				System.exit(0);
+    			}
+    			
+    			try {
+    				sleep(this.interval);
+    			}catch (Exception e) {
+    				System.err.println(e.getMessage());
+    			}
+    		}
+    	}
+    }
+}