#533: Add autocompletion of exit in ide shell (#707)

CHANGELOG.adoc

@@ -44,6 +44,7 @@ Release with new features and bugfixes:
 * https://github.com/devonfw/IDEasy/issues/525[#525]: Added online state check before downloading
 * https://github.com/devonfw/IDEasy/issues/663[#663]: Endless loop when installing Eclipse in force mode
 * https://github.com/devonfw/IDEasy/issues/657[#657]: Cannot install Java 8
+* https://github.com/devonfw/IDEasy/issues/533[#533]: Added autocompletion of exit in ide shell
 
 The full list of changes for this release can be found in https://github.com/devonfw/IDEasy/milestone/13?closed=1[milestone 2024.09.002].
 

cli/src/main/java/com/devonfw/tools/ide/commandlet/ShellCommandlet.java

@@ -4,13 +4,16 @@
 import java.util.Iterator;
 
 import org.fusesource.jansi.AnsiConsole;
+import org.jline.reader.Completer;
 import org.jline.reader.EndOfFileException;
 import org.jline.reader.LineReader;
 import org.jline.reader.LineReaderBuilder;
 import org.jline.reader.MaskingCallback;
 import org.jline.reader.Parser;
 import org.jline.reader.UserInterruptException;
 import org.jline.reader.impl.DefaultParser;
+import org.jline.reader.impl.completer.AggregateCompleter;
+import org.jline.reader.impl.completer.StringsCompleter;
 import org.jline.terminal.Terminal;
 import org.jline.terminal.TerminalBuilder;
 import org.jline.widget.AutosuggestionWidgets;
@@ -65,8 +68,9 @@ public void run() {
       Parser parser = new DefaultParser();
       try (Terminal terminal = TerminalBuilder.builder().build()) {
 
-        // initialize our own completer here
-        IdeCompleter completer = new IdeCompleter((AbstractIdeContext) this.context);
+        // initialize our own completer here and add exit as an autocompletion option
+        Completer completer = new AggregateCompleter(
+            new StringsCompleter("exit"), new IdeCompleter((AbstractIdeContext) this.context));
 
         LineReader reader = LineReaderBuilder.builder().terminal(terminal).completer(completer).parser(parser)
             .variable(LineReader.LIST_MAX, AUTOCOMPLETER_MAX_RESULTS).build();
@@ -86,6 +90,10 @@ public void run() {
         while (true) {
           try {
             line = reader.readLine(prompt, rightPrompt, (MaskingCallback) null, null);
+            line = line.trim();
+            if (line.equals("exit")) {
+              return;
+            }
             reader.getHistory().add(line);
             int rc = runCommand(line);
             if (rc == RC_EXIT) {