Move getLogPath to LoggerUtils

uses optional as well for readability

src/main/java/frc/robot/Robot.java

@@ -4,7 +4,6 @@
 import edu.wpi.first.wpilibj2.command.CommandScheduler;
 import frc.robot.constants.Constants;
 import frc.robot.util.LoggerUtil;
-import java.nio.file.Path;
 import org.littletonrobotics.junction.LogFileUtil;
 import org.littletonrobotics.junction.LoggedRobot;
 import org.littletonrobotics.junction.Logger;
@@ -24,11 +23,8 @@ public void robotInit() {
     switch (Constants.getRobotMode()) {
       case REAL:
         // Running on a real robot, log to a USB stick
-        var usbPath = Path.of("/U");
-        // Check if the USB is plugged in, log to it if so
-        if (usbPath.toFile().exists()) {
-          Logger.addDataReceiver(new WPILOGWriter(usbPath.toString()));
-        }
+        LoggerUtil.getLogPath()
+            .ifPresent(p -> Logger.addDataReceiver(new WPILOGWriter(p.toString())));
         Logger.addDataReceiver(new NT4Publisher());
         break;
       case SIM:

src/main/java/frc/robot/util/LoggerUtil.java

@@ -3,6 +3,8 @@
 import edu.wpi.first.wpilibj.RobotBase;
 import frc.generated.BuildConstants;
 import frc.robot.constants.Constants;
+import java.nio.file.Path;
+import java.util.Optional;
 import org.littletonrobotics.junction.Logger;
 
 public class LoggerUtil {
@@ -24,4 +26,20 @@ public static void initializeLoggerMetadata() {
       default -> Logger.recordMetadata("GIT_STATUS", "Unknown");
     }
   }
+
+  /**
+   * Get the path to the logging directory. Returns Empty if the USB drive is not plugged into the
+   * robot.
+   *
+   * @return logging path. Empty if the drive is not plugged in.
+   */
+  public static Optional<Path> getLogPath() {
+    var usbPath = Path.of("/U");
+    // Return USB path if it is plugged in
+    if (usbPath.toFile().exists()) {
+      return Optional.of(usbPath);
+    }
+
+    return Optional.empty();
+  }
 }