Fixed an issue with the default logging. Also made some sort of basic change to the fxml for the main app.

src/main/java/com/sothr/imagetools/AppCLI.java

@@ -1,11 +1,7 @@
 package com.sothr.imagetools;
 
 import com.sothr.imagetools.image.SimilarImages;
-import org.apache.commons.cli.BasicParser;
-import org.apache.commons.cli.CommandLine;
-import org.apache.commons.cli.CommandLineParser;
-import org.apache.commons.cli.Options;
-import org.apache.commons.cli.Option;
+import org.apache.commons.cli.*;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import scala.collection.immutable.List;
@@ -17,16 +13,24 @@ class AppCLI {
 
   private static Logger logger;
 
+  private static final String HEADER = "Process images and search for duplicates and similar images heuristically";
+  private static final String FOOTER = "Please report issues to...";
+
   public static void main(String[] args) {
-    AppConfig.configureApp();
-    logger = LoggerFactory.getLogger(AppCLI.class);
-    logger.info("Started Image Tools CLI");
     try {
       Options options = getOptions();
       CommandLineParser parser = new BasicParser();
       CommandLine cmd = parser.parse(options, args);
+      if (cmd.hasOption('h') || cmd.getOptions().length < 1 || cmd.getArgs().length > 0) {
+        HelpFormatter formatter = new HelpFormatter();
+        formatter.printHelp("Image-Tools CLI", HEADER, options, FOOTER, true);
+      } else {
+        AppConfig.configureApp();
+        logger = LoggerFactory.getLogger(AppCLI.class);
+        logger.info("Started Image Tools CLI");
         process(cmd);
         AppConfig.shutdown();
+      }
       System.exit(0);
     }  catch (Exception ex) {
       logger.error("Unhandled exception in AppCLI",ex);

src/main/java/com/sothr/imagetools/AppConfig.java

@@ -69,7 +69,7 @@ public class AppConfig {
           // Call context.reset() to clear any previous configuration, e.g. default 
           // configuration. For multi-step configuration, omit calling context.reset().
           context.reset();
-          configurator.doConfigure(ResourceLoader.get().getResource("logback-minimum-config.xml"));
+          configurator.doConfigure(ResourceLoader.get().getResourceStream("logback-minimum-config.xml"));
         } catch (JoranException je) {
           // StatusPrinter will handle this
         }

src/main/resources/fxml/mainapp/MainApp.fxml

@@ -4,7 +4,7 @@
 <?import javafx.scene.control.*?>
 <?import javafx.scene.layout.*?>
 
-<AnchorPane minHeight="-Infinity" minWidth="0.0" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.sothr.imagetools.ui.controller.AppController">
+<AnchorPane minHeight="400.0" minWidth="600.0" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.sothr.imagetools.ui.controller.AppController">
 <children><MenuBar fx:id="rootMenuBar" minWidth="-Infinity" prefHeight="29.0" prefWidth="600.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" xmlns:fx="http://javafx.com/fxml">
   <menus>
     <Menu mnemonicParsing="false" text="File">