SHL-6 - Spring Shell does not support "help"

src/main/java/org/springframework/shell/Bootstrap.java

@@ -91,14 +91,14 @@ public class Bootstrap {
         Map<String, CommandMarker> commands = ctx.getBeansOfType(CommandMarker.class);
 
         for (CommandMarker command : commands.values()) {    
-           System.out.println("Registgering command " + command);
+           System.out.println("Registering command " + command);
            shell.getSimpleParser().add(command);
         }
 
         Map<String, Converter> converters = ctx.getBeansOfType(Converter.class);
 
         for (Converter converter : converters.values()) {
-          System.out.println("Registgering converter " + converter);
+          System.out.println("Registering converter " + converter);
           shell.getSimpleParser().add(converter);
         }  
         

src/main/java/org/springframework/shell/commands/HelpCommands.java

@@ -0,0 +1,27 @@
+package org.springframework.shell.commands;
+
+import org.springframework.roo.shell.CliCommand;
+import org.springframework.roo.shell.CliOption;
+import org.springframework.roo.shell.CommandMarker;
+import org.springframework.roo.shell.SimpleParser;
+import org.springframework.stereotype.Component;
+
+/**
+ * Provides a listing of commands known to the shell.
+ * 
+ * @author Ben Alex
+ * @author Mark Pollack
+ *
+ */
+@Component
+public class HelpCommands extends SimpleParser implements CommandMarker {
+
+	
+	// Taken from SimpleParserComponent in the Roo code base
+	@Override
+	@CliCommand(value = "help", help = "Shows system help")
+	public void obtainHelp(
+		@CliOption(key = { "", "command" }, optionContext = "availableCommands", help = "Command name to provide help for") final String buffer) {		
+		super.obtainHelp(buffer);
+	}
+}