Provide pty info

- Enhance ShellContext for pty info
- Enhance CommandContext to include ShellContext
- Fixes #985

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022 the original author or authors.
+ * Copyright 2022-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,6 +15,9 @@
  */
 package org.springframework.shell.boot;
 
+import org.jline.terminal.Terminal;
+import org.jline.terminal.spi.TerminalExt;
+
 import org.springframework.boot.autoconfigure.AutoConfiguration;
 import org.springframework.context.annotation.Bean;
 import org.springframework.shell.context.DefaultShellContext;
@@ -24,7 +27,11 @@ import org.springframework.shell.context.ShellContext;
 public class ShellContextAutoConfiguration {
 
 	@Bean
-	public ShellContext shellContext() {
-		return new DefaultShellContext();
+	public ShellContext shellContext(Terminal terminal) {
+		boolean pty = false;
+		if (terminal instanceof TerminalExt ext) {
+			pty = ext.getSystemStream() != null;
+		}
+		return new DefaultShellContext(pty);
 	}
 }

spring-shell-autoconfigure/src/test/java/org/springframework/shell/boot/CommandCatalogAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2022-2023 the original author or authors.
+ * Copyright 2022-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -36,7 +36,8 @@ import static org.assertj.core.api.Assertions.assertThat;
 public class CommandCatalogAutoConfigurationTests {
 
 	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
-			.withConfiguration(AutoConfigurations.of(CommandCatalogAutoConfiguration.class, ShellContextAutoConfiguration.class));
+			.withConfiguration(AutoConfigurations.of(CommandCatalogAutoConfiguration.class,
+					JLineShellAutoConfiguration.class, ShellContextAutoConfiguration.class));
 
 	@Test
 	void defaultCommandCatalog() {