Fix the ipc sync context when MVND_DAEMON_STORAGE is not set

sync/src/main/java/org/mvndaemon/mvnd/sync/IpcSyncContextFactory.java

@@ -18,6 +18,7 @@
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.Map;
+import java.util.Optional;
 import java.util.concurrent.ConcurrentHashMap;
 import javax.annotation.PreDestroy;
 import javax.inject.Named;
@@ -26,6 +27,7 @@
 import org.eclipse.aether.SyncContext;
 import org.eclipse.aether.impl.SyncContextFactory;
 import org.eclipse.sisu.Priority;
+import org.mvndaemon.mvnd.common.BuildProperties;
 import org.mvndaemon.mvnd.common.Environment;
 
 /**
@@ -41,8 +43,11 @@ public class IpcSyncContextFactory implements SyncContextFactory {
     @Override
     public SyncContext newInstance(RepositorySystemSession session, boolean shared) {
         Path repository = session.getLocalRepository().getBasedir().toPath();
-        Path logPath = Environment.MVND_DAEMON_STORAGE.asPath();
-        String mvndHome = Environment.MVND_HOME.asOptional().orElse(null);
+        Path logPath = Optional.ofNullable(System.getProperty(Environment.MVND_DAEMON_STORAGE.getProperty()))
+                .map(Paths::get)
+                .orElseGet(() -> Environment.USER_HOME.asPath()
+                        .resolve(".m2/mvnd/registry/" + BuildProperties.getInstance().getVersion()));
+        String mvndHome = Environment.MVND_HOME.asString();
         Path syncPath = mvndHome != null ? Paths.get(mvndHome).resolve("bin") : null;
         IpcClient client = clients.computeIfAbsent(repository, r -> new IpcClient(r, logPath, syncPath));
         return new IpcSyncContext(client, shared);