move mappings folder to better location and have it autocreate

build.gradle

@@ -174,7 +174,7 @@ repositories {
 dependencies {
     if (getProject().hasProperty("baritone.fabric_build")) {
         minecraft "com.mojang:minecraft:1.15.2"
-        mappings fileTree(dir: "volderyarn", include: "**.jar")
+        mappings fileTree(dir: "./build/volderyarn", include: "**.jar")
         modImplementation "net.fabricmc:fabric-loader:0.9.1+build.205"
 
         // this makes it compile with the forge tweak stuff

buildSrc/src/main/java/baritone/gradle/fabric/CreateVolderYarn.java

@@ -31,7 +31,7 @@ import java.util.zip.ZipOutputStream;
  * @Author Wagyourtail
  */
 public class CreateVolderYarn {
-    public static String VOLDERYARNFOLDER = "./volderyarn/";
+    public static String VOLDERYARNFOLDER = "./build/volderyarn/";
     public static String VOLDERYARN = "volderyarn-%s-%s-%s.jar";
     
     public static void genMappings(String mcVersion, Map<String, String> mcpVersion) throws IOException {
@@ -56,6 +56,7 @@ public class CreateVolderYarn {
         }
         
         File outputFolder = new File(VOLDERYARNFOLDER);
+        if (!outputFolder.exists() && !outputFolder.mkdirs()) throw new RuntimeException("Failed to create dir for volderyarn mappings.");
         
         for (File f : outputFolder.listFiles()) {
             if (!f.isDirectory()) f.delete();