Make purge task run options configurable. Also adds ability to disable

the task entirely.

src/main/java/com/gmail/nossr50/config/Config.java

@@ -35,6 +35,7 @@ public class Config extends ConfigLoader {
     public int getSaveInterval() { return config.getInt("General.Save_Interval", 10); }
     public boolean getStatsTrackingEnabled() { return config.getBoolean("General.Stats_Tracking", true); }
     public boolean getEventCallbackEnabled() { return config.getBoolean("General.Event_Callback", true); }
+    public int getPurgeInterval() { return config.getInt("General.Purge_Interval", 0); }
 
     /* mySQL */
     public boolean getUseMySQL() { return config.getBoolean("MySQL.Enabled", false); }

src/main/java/com/gmail/nossr50/mcMMO.java

@@ -197,8 +197,15 @@ public class mcMMO extends JavaPlugin {
         scheduler.scheduleSyncRepeatingTask(this, new BleedTimer(), 0, 40);
         //Chunklet unloader (Runs every 20 seconds by default)
         scheduler.scheduleSyncRepeatingTask(this, new ChunkletUnloader(), 0, ChunkletUnloader.RUN_INTERVAL * 20);
-        //Old & Powerless User remover (Runs every 6 hours)
+
-        scheduler.scheduleSyncRepeatingTask(this, new UserPurgeTask(), 0, 21600 * 20);
+        //Old & Powerless User remover
+        int purgeInterval = Config.getInstance().getPurgeInterval();
+        if (purgeInterval == 0) {
+            scheduler.runTask(this, new UserPurgeTask());
+        }
+        else if (purgeInterval > 0) {
+            scheduler.scheduleSyncRepeatingTask(this, new UserPurgeTask(), 0, purgeInterval * 60L * 60L * 20L);
+        }
 
         registerCommands();
 

src/main/resources/config.yml

@@ -17,6 +17,10 @@ General:
     #Allow mcMMO to inform other plugins of damage being dealt
     Event_Callback: true
     Power_Level_Cap: 0
+    #Amount of time (in hours) to wait between database purging
+    #To only run at server start, set to 0
+    #To never run, set to -1
+    Purge_Interval: 0
 
 #
 #  Settings for using a mySQL database