Add Gradle task to print available Flux commands.

Shortcut for bundling a distribution, extracting it, and then running `./flux.sh` in it.

Author: blackwinter

metafacture-flux/src/main/java/org/metafacture/flux/HelpPrinter.java

@@ -19,6 +19,7 @@
 import org.metafacture.commons.ResourceUtil;
 import org.metafacture.commons.reflection.ConfigurableClass;
 import org.metafacture.commons.reflection.ObjectFactory;
+import org.metafacture.flux.parser.FluxProgramm;
 import org.metafacture.framework.MetafactureException;
 import org.metafacture.framework.annotations.Description;
 import org.metafacture.framework.annotations.In;
@@ -43,10 +44,15 @@
  * @author Markus Michael Geipel
  */
 public final class HelpPrinter {
+
     private HelpPrinter() {
         // no instances
     }
 
+    public static void main(final String[] args) {
+        FluxProgramm.printHelp(System.out);
+    }
+
     /**
      * Prints Flux help for a given ObjectFactory. Excerpts setters and their
      * arguments, {@code @in} annotations and {@code @out} annotations.

metafacture-runner/build.gradle

@@ -158,3 +158,8 @@ tasks.signArchives {
     }
   }
 }
+
+task('fluxCommands', type: JavaExec, description: 'Print available Flux commands') {
+  classpath = sourceSets.main.runtimeClasspath
+  main = 'org.metafacture.flux.HelpPrinter'
+}