Separate interactive and non-interactive commands

- Add new ShellContext concept which now is just a way
  to stash info about interaction mode where ShellRunner
  can update supported mode.
- ShellMethod has a new field interactionMode which user
  can use to define commands between interactive/non-interactive
  modes which then prevents CommandRegistry to show
  commands at runtime.
- Fixes #345

spring-shell-autoconfigure/src/main/java/org/springframework/shell/boot/CommandRegistryAutoConfiguration.java

@@ -21,14 +21,16 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.shell.CommandRegistry;
 import org.springframework.shell.ConfigurableCommandRegistry;
 import org.springframework.shell.MethodTargetRegistrar;
+import org.springframework.shell.context.ShellContext;
 
 @Configuration(proxyBeanMethods = false)
 public class CommandRegistryAutoConfiguration {
 
 	@Bean
 	public CommandRegistry commandRegistry(
-			ObjectProvider<MethodTargetRegistrar> methodTargetRegistrars) {
-		ConfigurableCommandRegistry registry = new ConfigurableCommandRegistry();
+			ObjectProvider<MethodTargetRegistrar> methodTargetRegistrars,
+			ShellContext shellContext) {
+		ConfigurableCommandRegistry registry = new ConfigurableCommandRegistry(shellContext);
 		methodTargetRegistrars.orderedStream().forEach(resolver -> {
 			resolver.register(registry);
 		});

spring-shell-autoconfigure/src/main/java/org/springframework/shell/boot/ShellContextAutoConfiguration.java

@@ -0,0 +1,15 @@
+package org.springframework.shell.boot;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.shell.context.DefaultShellContext;
+import org.springframework.shell.context.ShellContext;
+
+@Configuration(proxyBeanMethods = false)
+public class ShellContextAutoConfiguration {
+
+	@Bean
+	public ShellContext shellContext() {
+		return new DefaultShellContext();
+	}
+}

spring-shell-autoconfigure/src/main/java/org/springframework/shell/boot/ShellRunnerAutoConfiguration.java

@@ -22,6 +22,7 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.shell.Shell;
+import org.springframework.shell.context.ShellContext;
 import org.springframework.shell.jline.InteractiveShellRunner;
 import org.springframework.shell.jline.NonInteractiveShellRunner;
 import org.springframework.shell.jline.PromptProvider;
@@ -34,24 +35,27 @@ public class ShellRunnerAutoConfiguration {
 	private PromptProvider promptProvider;
 	private LineReader lineReader;
 	private Parser parser;
+	private ShellContext shellContext;
 
-	public ShellRunnerAutoConfiguration(Shell shell, PromptProvider promptProvider, LineReader lineReader, Parser parser) {
+	public ShellRunnerAutoConfiguration(Shell shell, PromptProvider promptProvider, LineReader lineReader,
+			Parser parser, ShellContext shellContext) {
 		this.shell = shell;
 		this.promptProvider = promptProvider;
 		this.lineReader = lineReader;
 		this.parser = parser;
+		this.shellContext = shellContext;
 	}
 
 	@Bean
 	@ConditionalOnProperty(prefix = "spring.shell.interactive", value = "enabled", havingValue = "true", matchIfMissing = true)
 	public InteractiveShellRunner interactiveApplicationRunner() {
-		return new InteractiveShellRunner(lineReader, promptProvider, shell);
+		return new InteractiveShellRunner(lineReader, promptProvider, shell, shellContext);
 	}
 
 	@Bean
 	@ConditionalOnProperty(prefix = "spring.shell.noninteractive", value = "enabled", havingValue = "true", matchIfMissing = true)
 	public NonInteractiveShellRunner nonInteractiveApplicationRunner() {
-		return new NonInteractiveShellRunner(shell);
+		return new NonInteractiveShellRunner(shell, shellContext);
 	}
 
 	@Bean

spring-shell-autoconfigure/src/main/resources/META-INF/spring.factories

@@ -1,4 +1,5 @@
 org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
+org.springframework.shell.boot.ShellContextAutoConfiguration,\
 org.springframework.shell.boot.SpringShellAutoConfiguration,\
 org.springframework.shell.boot.ShellRunnerAutoConfiguration,\
 org.springframework.shell.boot.ApplicationRunnerAutoConfiguration,\