Backup old mod configs & replace with new.

src/main/java/com/gmail/nossr50/config/mods/CustomArmorConfig.java

@@ -18,6 +18,8 @@ import com.gmail.nossr50.skills.repair.repairables.RepairableFactory;
 public class CustomArmorConfig extends ConfigLoader {
     private static CustomArmorConfig instance;
 
+    private boolean needsUpdate = false;
+
     private List<Repairable> repairables;
 
     private List<Material> customBoots       = new ArrayList<Material>();
@@ -50,10 +52,17 @@ public class CustomArmorConfig extends ConfigLoader {
     protected void loadKeys() {
         repairables = new ArrayList<Repairable>();
 
-        loadArmor("Boots", customBoots);
-        loadArmor("Chestplates", customChestplates);
-        loadArmor("Helmets", customHelmets);
-        loadArmor("Leggings", customLeggings);
+        while (!needsUpdate) {
+            loadArmor("Boots", customBoots);
+            loadArmor("Chestplates", customChestplates);
+            loadArmor("Helmets", customHelmets);
+            loadArmor("Leggings", customLeggings);
+        }
+
+        if (needsUpdate) {
+            needsUpdate = false;
+            backup();
+        }
     }
 
     private void loadArmor(String armorType, List<Material> materialList) {
@@ -66,6 +75,11 @@ public class CustomArmorConfig extends ConfigLoader {
         Set<String> armorConfigSet = armorSection.getKeys(false);
 
         for (String armorName : armorConfigSet) {
+            if (config.contains(armorType + "." + armorName + "." + ".ID")) {
+                needsUpdate = true;
+                return;
+            }
+
             Material armorMaterial = Material.matchMaterial(armorName);
 
             if (armorMaterial == null) {

src/main/java/com/gmail/nossr50/config/mods/CustomBlockConfig.java

@@ -16,6 +16,8 @@ import com.gmail.nossr50.datatypes.mods.CustomBlock;
 public class CustomBlockConfig extends ConfigLoader {
     private static CustomBlockConfig instance;
 
+    private boolean needsUpdate = false;
+
     private List<MaterialData> customExcavationBlocks  = new ArrayList<MaterialData>();
     private List<MaterialData> customHerbalismBlocks   = new ArrayList<MaterialData>();
     private List<MaterialData> customMiningBlocks      = new ArrayList<MaterialData>();
@@ -42,11 +44,18 @@ public class CustomBlockConfig extends ConfigLoader {
 
     @Override
     protected void loadKeys() {
-        loadBlocks("Excavation", customExcavationBlocks);
-        loadBlocks("Herbalism", customHerbalismBlocks);
-        loadBlocks("Mining", customMiningBlocks);
-        loadBlocks("Woodcutting", customWoodcuttingBlocks);
-        loadBlocks("Ability_Blocks", customAbilityBlocks);
+        while (!needsUpdate) {
+            loadBlocks("Excavation", customExcavationBlocks);
+            loadBlocks("Herbalism", customHerbalismBlocks);
+            loadBlocks("Mining", customMiningBlocks);
+            loadBlocks("Woodcutting", customWoodcuttingBlocks);
+            loadBlocks("Ability_Blocks", customAbilityBlocks);
+        }
+
+        if (needsUpdate) {
+            needsUpdate = false;
+            backup();
+        }
     }
 
     private void loadBlocks(String skillType, List<MaterialData> blockList) {
@@ -59,6 +68,11 @@ public class CustomBlockConfig extends ConfigLoader {
         Set<String> skillConfigSet = skillSection.getKeys(false);
 
         for (String blockName : skillConfigSet) {
+            if (config.contains(skillType + "." + blockName + "." + ".ID")) {
+                needsUpdate = true;
+                return;
+            }
+
             String[] blockInfo = blockName.split("[|]");
 
             Material blockMaterial = Material.matchMaterial(blockInfo[0]);

src/main/java/com/gmail/nossr50/config/mods/CustomEntityConfig.java

@@ -32,6 +32,11 @@ public class CustomEntityConfig extends ConfigLoader {
 
     @Override
     protected void loadKeys() {
+        if (config.getConfigurationSection("Hostile") != null) {
+            backup();
+            return;
+        }
+
         for (String entityName : config.getKeys(false)) {
             Class<?> clazz = null;
             String className = config.getString(entityName + ".Class", "");

src/main/java/com/gmail/nossr50/config/mods/CustomToolConfig.java

@@ -19,6 +19,9 @@ import com.gmail.nossr50.skills.repair.repairables.RepairableFactory;
 
 public class CustomToolConfig extends ConfigLoader {
     private static CustomToolConfig instance;
+
+    private boolean needsUpdate = false;
+
     private List<Repairable> repairables;
 
     private List<Material> customAxes     = new ArrayList<Material>();
@@ -55,12 +58,19 @@ public class CustomToolConfig extends ConfigLoader {
     protected void loadKeys() {
         repairables = new ArrayList<Repairable>();
 
-        loadTool("Axes", customAxes);
-        loadTool("Bows", customBows);
-        loadTool("Hoes", customHoes);
-        loadTool("Pickaxes", customPickaxes);
-        loadTool("Shovels", customShovels);
-        loadTool("Swords", customSwords);
+        while (!needsUpdate) {
+            loadTool("Axes", customAxes);
+            loadTool("Bows", customBows);
+            loadTool("Hoes", customHoes);
+            loadTool("Pickaxes", customPickaxes);
+            loadTool("Shovels", customShovels);
+            loadTool("Swords", customSwords);
+        }
+
+        if (needsUpdate) {
+            needsUpdate = false;
+            backup();
+        }
     }
 
     private void loadTool(String toolType, List<Material> materialList) {
@@ -73,6 +83,11 @@ public class CustomToolConfig extends ConfigLoader {
         Set<String> toolConfigSet = toolSection.getKeys(false);
 
         for (String toolName : toolConfigSet) {
+            if (config.contains(toolType + "." + toolName + "." + ".ID")) {
+                needsUpdate = true;
+                return;
+            }
+
             Material toolMaterial = Material.matchMaterial(toolName);
 
             if (toolMaterial == null) {