[#2028][#2031] Add setter for name in picocli.shell.jline3.PicocliCommands

Author: remkop

RELEASE-NOTES.md

@@ -21,8 +21,11 @@ Artifacts in this release are signed by Remko Popma (6601 E5C0 8DCC BB96).
 
 See fixed items below.
 
+I cheated on the semantic versioning in this release: a public setter method was added in a class in the `picocli.shell.jline3` module. In spite of that, the version number went from 4.7.3 to 4.7.4 (not 4.8.0). My apologies.
+
 
 ## <a name="4.7.4-fixes"></a> Fixed issues
+* [#2028][#2031] API: Add setter for name in `picocli.shell.jline3.PicocliCommands`. Thanks to [Irina Leontyuk](https://github.com/irinaleo) for raising this.
 * [#2026][#2027] Enhancement: Improved feedback on mistyped subcommands. Thanks to [David Pond](https://github.com/mauvo) for the pull request.
 * [#2029][#2034] Enhancement: prevent `java.nio.charset.UnsupportedCharsetException: cp0` on windows, and fall back to the default charset if the charset provided by System property `sun.stdout.encoding` is invalid. Thanks to [
   Bartosz Spyrko-Smietanko](https://github.com/spyrkob) for the pull request.

picocli-shell-jline3/src/main/java/picocli/shell/jline3/PicocliCommands.java

@@ -41,6 +41,7 @@
  * @since 4.1.2
  */
 public class PicocliCommands implements CommandRegistry {
+    private String picocliCommandsName;
 
     /**
      * Command that clears the screen.
@@ -307,4 +308,25 @@ public Map<String, String> commandAliases() {
     public CmdDesc commandDescription(String command) {
         return null;
     }
+
+    /**
+     * Returns the name shown for this collection of picocli commands in the usage help message.
+     * If not set with {@link #name(String)}, this returns {@link CommandRegistry#name()}.
+     * @return the name shown for this collection of picocli commands in the usage help message
+     */
+    @Override
+    public String name() {
+        if (picocliCommandsName != null) {
+            return picocliCommandsName;
+        }
+        return CommandRegistry.super.name();
+    }
+
+    /**
+     * Sets the name shown for this collection of picocli commands in the usage help message.
+     * @param newName the new name to show
+     */
+    public void name(String newName) {
+        picocliCommandsName = newName;
+    }
 }