Adding some version information and fixing command-line to actually report version.

build.gradle

@@ -16,7 +16,9 @@ mainClassName = 'com.webcodepro.shrinkit.NufxScan'
 jar {
   manifest {
     attributes(
-      'Main-Class': mainClassName
+      'Main-Class': mainClassName,
+      'Implementation-Title': 'ShrinkItArchive',
+      'Implementation-Version': version
     )
   }
 }

gradle.properties

@@ -1,7 +1,7 @@
 # Universal ShrinkItArchive version number.  Used for:
 # - Naming JAR file.  
 # - The build will insert this into a file that is read at run time as well.
-version=1.2.1
+version=1.2.2
 
 # Maven Central Repository G and A of GAV coordinate. :-)
 group=net.sf.applecommander

src/main/java/com/webcodepro/shrinkit/NuFileArchive.java

@@ -13,6 +13,12 @@ import com.webcodepro.shrinkit.io.LittleEndianByteInputStream;
  * @author robgreene@users.sourceforge.net
  */
 public class NuFileArchive {
+	public static final String VERSION;
+	
+	static {
+		VERSION = NuFileArchive.class.getPackage().getImplementationVersion();
+	}	
+	
 	private MasterHeaderBlock master;
 	private List<HeaderBlock> headers;
 	private long totalSize = 0;

src/main/java/com/webcodepro/shrinkit/NufxScan.java

@@ -21,8 +21,14 @@ public class NufxScan {
 	private static long sizeOfSmallestCompressedFile;
 	
 	public static void main(String[] args) throws IOException {
-		for (String dir : args) {
-			scanDirectory(dir);
+		if (args.length == 0) {
+			System.out.println("Scan NuFX/Shrinkit archives.  Please include at least one path name.");
+		} else if (args.length == 1 && "-v".equals(args[0])) {
+			System.out.printf("ShrinkIt Library version %s\n", NuFileArchive.VERSION);
+		} else {
+			for (String dir : args) {
+				scanDirectory(dir);
+			}
 		}
 	}