SHL-91 SHL-80 Provide ability to disable built-in commands

docs/src/reference/docbook/reference/shell.xml

@@ -286,6 +286,15 @@ public class HelloWorldCommands implements CommandMarker {
         lines to store in the command history file. Default value is
         3000.</para>
       </listitem>
+
+      <listitem>
+        <para><literal>--disableInternalCommands</literal> - Flag that disables all commands that would
+	be pre-registered with the shell.  There is no argument to this option.  You can selectively add
+	back any internal commands by referencing them in your shell plugin file.  Look at the
+	Spring Shell javadocs for specific commands located in the 
+	<literal>org.springframework.shell.commands</literal> package as well as the section in this documentation
+	of Built in commands.</para>
+      </listitem>
     </itemizedlist>
   </section>
 

samples/helloworld/gradle.properties

@@ -1,4 +1,4 @@
-springShellVersion = 1.1.0.M1
+springShellVersion = 1.1.0.BUILD-SNAPSHOT
 junitVersion = 4.10
 log4jVersion = 1.2.17
 version = 1.0.0.RELEASE

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

@@ -86,7 +86,11 @@ public class Bootstrap {
 		configureApplicationContext(ctx);		
 		//built-in commands and converters
 		ClassPathBeanDefinitionScanner scanner = new ClassPathBeanDefinitionScanner(ctx);
-		scanner.scan("org.springframework.shell.commands", "org.springframework.shell.converters", "org.springframework.shell.plugin.support");		
+		if (commandLine.getDisableInternalCommands()) {
+			scanner.scan("org.springframework.shell.converters", "org.springframework.shell.plugin.support");		
+		} else {
+			scanner.scan("org.springframework.shell.commands", "org.springframework.shell.converters", "org.springframework.shell.plugin.support");
+		}
 		//user contributed commands
 		XmlBeanDefinitionReader reader = new XmlBeanDefinitionReader((BeanDefinitionRegistry) ctx);
 		reader.loadBeanDefinitions(contextPath);

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

@@ -26,6 +26,7 @@ public class CommandLine {
 	private String[] args;
 	private int historySize;
 	private String[] shellCommandsToExecute;
+	private boolean disableInteralCommands;
 
 	/**
 	 * Construct a new CommandLine  
@@ -33,10 +34,11 @@ public class CommandLine {
 	 * @param historySize the size of this history buffer
 	 * @param shellCommandsToExecute semi-colon delimited list of commands for the shell to execute
 	 */
-	public CommandLine(String[] args, int historySize, String[] shellCommandsToExecute) {
+	public CommandLine(String[] args, int historySize, String[] shellCommandsToExecute, boolean disableInteralCommands) {
 		this.args = args;
 		this.historySize = historySize;
 		this.shellCommandsToExecute = shellCommandsToExecute;
+		this.disableInteralCommands = disableInteralCommands;
 	}
 
 	/**
@@ -60,5 +62,13 @@ public class CommandLine {
 	public String[] getShellCommandsToExecute() {
 		return shellCommandsToExecute;
 	}
+	
+	/**
+	 * 
+	 * @return the disableInteralCommands value
+	 */
+	public boolean getDisableInternalCommands() {
+		return disableInteralCommands;
+	}
 
 }

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

@@ -38,6 +38,7 @@ public class SimpleShellCommandLineOptions {
 	String[] executeThenQuit = null;
 	Map<String, String> extraSystemProperties = new HashMap<String, String>();
 	int historySize = DEFAULT_HISTORY_SIZE;
+	boolean disableCommands;
 
 	public static CommandLine parseCommandLine(String[] args)
 			throws IOException {
@@ -79,6 +80,8 @@ public class SimpleShellCommandLineOptions {
 				} catch (ArrayIndexOutOfBoundsException ae) {
 					LOGGER.warning("No value specified for --histsize option");
 				}
+			} else if (arg.equals("--disableInternalCommands")) { 
+				options.disableCommands = true;
 			} else if (arg.equals("--help")) {
 				printUsage();
 				System.exit(0);
@@ -112,7 +115,7 @@ public class SimpleShellCommandLineOptions {
 			System.setProperty(entry.getKey(), entry.getValue());
 		}
 
-		return new CommandLine(args, options.historySize, options.executeThenQuit);
+		return new CommandLine(args, options.historySize, options.executeThenQuit, options.disableCommands);
 	}
 
 	private static void printUsage() {