Addressed linting warnings

Author: mrflip

Ev3LangScala/src/ev3dev4s/actuators/Ev3Led.scala

@@ -1,10 +1,10 @@
 package ev3dev4s.actuators
 
+import ev3dev4s.scala2measure.Conversions._
+import ev3dev4s.scala2measure.LedIntensity
 import ev3dev4s.sysfs.ChannelRewriter
 
 import java.nio.file.Path
-import ev3dev4s.scala2measure.LedIntensity
-import ev3dev4s.scala2measure.Conversions._
 
 /**
  *
@@ -14,7 +14,7 @@ import ev3dev4s.scala2measure.Conversions._
 
 sealed case class Ev3Led(side: Int) extends AutoCloseable {
 
-  import ev3dev4s.actuators.Ev3Led.{Color, brightest, darkest, Off, Red, Green, Yellow}
+  import ev3dev4s.actuators.Ev3Led.{Color, Off, Red, Green, Yellow} // brightest, darkest
 
   val rootName = "/sys/class"
   //noinspection SpellCheckingInspection

Ev3LangScala/src/ev3dev4s/lego/Gyroscope.scala

@@ -2,7 +2,6 @@ package ev3dev4s.lego
 
 import ev3dev4s.scala2measure.Degrees
 import ev3dev4s.sensors.{Ev3Gyroscope, SensorPort, SensorPortScanner}
-import ev3dev4s.sysfs.UnpluggedException
 
 /**
  *

Ev3LangScala/src/ev3dev4s/lego/Motors.scala

@@ -1,6 +1,6 @@
 package ev3dev4s.lego
 
-import ev3dev4s.actuators.{Motor, MotorCommand, MotorPort, MotorPortScanner, MotorState, MotorStopCommand}
+import ev3dev4s.actuators.{Motor, MotorCommand, MotorPort, MotorPortScanner, MotorStopCommand}
 import ev3dev4s.scala2measure.{Degrees, DegreesPerSecond, MilliSeconds}
 import ev3dev4s.scala2measure.Conversions._
 import ev3dev4s.os.Time

Ev3LangScala/src/ev3dev4s/scala2measure/Measured.scala

@@ -16,7 +16,7 @@ trait Measured[M <: Measured[M]] extends Any {
   //noinspection
   def toString(): String // todo figure out def toString(): String
 
-  def unary_-(): M = create(-this.v) // todo add type annotation when allowed
+  def unary_- : M = create(-this.v)
 
   def +(m: M): M = create(this.v + m.v)
 

Ev3LangScala/src/ev3dev4s/sensors/Ev3Gyroscope.scala

@@ -16,6 +16,7 @@ import scala.collection.immutable.ArraySeq
  * @author David Walend
  * @since v0.0.0
  */
+//noinspection ScalaUnnecessaryParentheses
 case class Ev3Gyroscope(override val port: SensorPort, initialSensorDir: Option[Path])
   extends MultiModeSensor(port, initialSensorDir.map(MultiModeSensorFS.Value0SensorFS)) { //todo change to Value01SensorFS to support GYRO-G&A
 
@@ -46,7 +47,7 @@ case class Ev3Gyroscope(override val port: SensorPort, initialSensorDir: Option[
   sealed case class HeadingMode() extends Mode {
     val name = "GYRO-ANG"
 
-    @volatile var offset: Degrees = 0.degrees
+    @volatile private var offset: Degrees = 0.degrees
     zero()
 
     /**
@@ -75,6 +76,7 @@ case class Ev3Gyroscope(override val port: SensorPort, initialSensorDir: Option[
   /**
    * Angle change rate in degrees per second
    */
+  //noinspection ScalaUnusedSymbol
   sealed case class RateMode() extends Mode {
     val name = "GYRO-RATE"
 
@@ -179,13 +181,14 @@ TILT-ANG [24]	Angle (2nd axis)	deg (degrees)	0	1	value0: Angle (-32768 to 32767)
 
     while ( {
       try {
+        //noinspection ZeroIndexToHead
         reportProgress(0)()
         val legoPortDir: Path = scanForPortDir()
         Log.log(s"legoPortDir is $legoPortDir")
         reportProgress(1)()
         restartSensorSoftBoot(legoPortDir)
         reportProgress(2)()
-        !scanForSensor(port) //keep looking if no sensor found
+        !scanForSensor(port) // keep looking if no sensor found
       } catch {
         case GadgetUnplugged(_) => true
       }
@@ -197,7 +200,7 @@ TILT-ANG [24]	Angle (2nd axis)	deg (degrees)	0	1	value0: Angle (-32768 to 32767)
 
     reportProgress(3)()
 
-    Log.log(s"Successfully despun")
+    Log.log(s"Successfully de-spun")
   }
 }
 

Ev3LangScala/src/ev3dev4s/sysfs/ChannelRewriter.scala

@@ -3,8 +3,7 @@ package ev3dev4s.sysfs
 import java.nio.ByteBuffer
 import java.nio.channels.FileChannel
 import java.nio.charset.StandardCharsets
-import java.nio.file.{AccessDeniedException, Path, StandardOpenOption}
-import scala.annotation.tailrec
+import java.nio.file.{Path, StandardOpenOption}
 
 /**
  *

Ev3LangScala/src/ev3dev4s/sysfs/GadgetPortScanner.scala

@@ -10,6 +10,7 @@ import scala.collection.immutable.ArraySeq
  * @author David Walend
  * @since v0.0.0
  */
+//noinspection ScalaUnnecessaryParentheses
 abstract class GadgetPortScanner[P <: Port](gadgetDir: File, ports: Array[P]) {
 
   val namesToPorts: Map[Char, P] = ports.map { p => p.name -> p }.toMap

Ev3LangScalaExample/src/ev3dev4s/sensors/gyroscope/examples/GyroDriveStraight.scala

@@ -1,12 +1,10 @@
 package ev3dev4s.sensors.gyroscope.examples
 
-import ev3dev4s.actuators.{Motor, MotorCommand, MotorPort, MotorStopCommand, MotorState}
+import ev3dev4s.actuators.{Motor, MotorCommand, MotorPort, MotorStopCommand}
 import ev3dev4s.sensors.{Ev3Gyroscope, Ev3KeyPad}
 import ev3dev4s.{Ev3System, Log}
-import ev3dev4s.scala2measure.Degrees
+import ev3dev4s.scala2measure.{Degrees, DegreesPerSecond, DutyCycle, MilliMeters}
 import ev3dev4s.scala2measure.Conversions._
-import ev3dev4s.scala2measure.DegreesPerSecond
-import ev3dev4s.scala2measure.DutyCycle
 
 /**
  *
@@ -98,15 +96,15 @@ object GyroDriveStraight extends Runnable {
         val leftIdeal = ((dutyCycle + steerAdjust) / 10.unitless).dutyCyclePercent
         val rightIdeal = ((dutyCycle - steerAdjust) / 10.unitless).dutyCyclePercent
         (leftIdeal, rightIdeal)
-        //todo for fractions
-        //val (leftSteering, rightSteering) = (leftIdeal,rightIdeal)
-        //todo for fractions
-        //if(leftIdeal != rightIdeal) (leftIdeal,rightIdeal)
-        //else if(steerAdjust.v > 0) (leftIdeal+1,rightIdeal)
-        //else if(steerAdjust.v < 0) (leftIdeal,rightIdeal+1)
-        //else (leftIdeal,rightIdeal)
-        //todo speed up very slow movement by 10. Not sure this is usefulif(leftSteering >= 10 && rightSteering >= 10) (leftSteering,rightSteering)
-        //todo speed up very slow movement by 10. Not sure this is useful else (leftSteering+10,rightSteering+10)
+        // todo for fractions
+        // val (leftSteering, rightSteering) = (leftIdeal,rightIdeal)
+        // todo for fractions
+        // if(leftIdeal != rightIdeal) (leftIdeal,rightIdeal)
+        // else if(steerAdjust.v > 0) (leftIdeal+1,rightIdeal)
+        // else if(steerAdjust.v < 0) (leftIdeal,rightIdeal+1)
+        // else (leftIdeal,rightIdeal)
+        // todo speed up very slow movement by 10. Not sure this is useful: if(leftSteering >= 10 && rightSteering >= 10) (leftSteering,rightSteering)
+        // todo speed up very slow movement by 10. Not sure this is useful else (leftSteering+10,rightSteering+10)
       }
 
       val (leftDutyCycle, rightDutyCycle) = dutyCyclesFromAdjust()
@@ -209,7 +207,7 @@ object GyroDriveStraight extends Runnable {
 
     /**
      * Adjust the speed based on the current gyro heading to drive in an arc.
-     * This method assumes the goal absolute postions have already been written
+     * This method assumes the goal absolute positions have already been written
      *
      * @param goalHeading that the gyroscope should read during this traverse
      * @param averageSpeed degrees/second for moving the robot quickly
@@ -270,12 +268,12 @@ object GyroDriveStraight extends Runnable {
 
 object Robot {
 
-  val driveWheelDiameter = 11.studs
-  val driveWheelCircumference = (driveWheelDiameter.v * Math.PI.toFloat).mm
+  val driveWheelDiameter: MilliMeters = 11.studs
+  val driveWheelCircumference: MilliMeters = (driveWheelDiameter.v * Math.PI.toFloat).mm
 
-  val robotWheelbase = 18.studs
+  val robotWheelbase: MilliMeters = 18.studs
 
-  val keypad = Ev3System.keyPad
+  val keypad: Ev3KeyPad.type = Ev3System.keyPad
 
   val gyroscope: Ev3Gyroscope = Ev3System.portsToSensors.values.collectFirst { case gyro: Ev3Gyroscope => gyro }.get
   val headingMode: gyroscope.HeadingMode = gyroscope.headingMode()

Ev3LangScalaExample/src/ev3dev4s/timing/GyroFeedbackLoop.scala

@@ -10,13 +10,14 @@ import ev3dev4s.scala2measure.Conversions._
 import ev3dev4s.sensors.Ev3KeyPad
 import ev3dev4s.scala2measure.DutyCycle
 
+
 /**
  * A test of time to run a reasonable control loop for various comparisons
  *
  * Baseline - before messing with unit-based numbers in controls
  * 1638416904531 13929 loop closures in 60000 for 4.30756 milliseconds per loop closure
  *
- * With my own units for Degrees and Percent (duty cyle)
+ * With my own units for Degrees and Percent (duty cycle)
  * 1639715964387 14436 loop closures in 60000 for 4.1562757 milliseconds per loop closure
  *
  * With my own universal trait for the arithmetic operations

Ev3LangScalaExample/src/ev3dev4s/timing/Simplest.scala

@@ -1,8 +1,5 @@
 package ev3dev4s.timing
 
-import ev3dev4s.Ev3System
-import ev3dev4s.actuators.Ev3Led
-
 /**
  * Run via
  *