(camel) 01/01: CAMEL-23226: Enhance Shell with alias persistence and init script support

[gn...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

gnodet pushed a commit to branch CAMEL-23226-shell-enhancements
in repository https://gitbox.apache.org/repos/asf/camel.git

commit 586f5dff8e73d10e753c8d77533bfb366d5b1026
Author: Guillaume Nodet <gn...@gmail.com>
AuthorDate: Sat Mar 21 13:48:02 2026 +0100

    CAMEL-23226: Enhance Shell with alias persistence and init script support
    
    - Add DefaultAliasManager with persistence at ~/.camel-jbang-aliases
      for persistent alias/unalias commands
    - Add init script support via ~/.camel-jbang-init file
    - Remove scriptCommands(true) which requires a scriptRunner to function
    
    Co-Authored-By: Claude Opus 4.6 <no...@anthropic.com>
---
 .../camel/dsl/jbang/core/commands/Shell.java       | 27 ++++++++++++++++++----
 1 file changed, 22 insertions(+), 5 deletions(-)

diff --git a/dsl/camel-jbang/camel-jbang-core/src/main/java/org/apache/camel/dsl/jbang/core/commands/Shell.java b/dsl/camel-jbang/camel-jbang-core/src/main/java/org/apache/camel/dsl/jbang/core/commands/Shell.java
index 433ba21d9c5a..c550f328fbce 100644
--- a/dsl/camel-jbang/camel-jbang-core/src/main/java/org/apache/camel/dsl/jbang/core/commands/Shell.java
+++ b/dsl/camel-jbang/camel-jbang-core/src/main/java/org/apache/camel/dsl/jbang/core/commands/Shell.java
@@ -16,6 +16,7 @@
  */
 package org.apache.camel.dsl.jbang.core.commands;
 
+import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 
@@ -24,6 +25,7 @@ import org.jline.builtins.InteractiveCommandGroup;
 import org.jline.builtins.PosixCommandGroup;
 import org.jline.picocli.PicocliCommandRegistry;
 import org.jline.reader.LineReader;
+import org.jline.shell.impl.DefaultAliasManager;
 import picocli.CommandLine;
 
 @CommandLine.Command(name = "shell",
@@ -39,20 +41,35 @@ public class Shell extends CamelCommand {
     public Integer doCall() throws Exception {
         PicocliCommandRegistry registry = new PicocliCommandRegistry(CamelJBangMain.getCommandLine());
 
-        Path history = Paths.get(HomeHelper.resolveHomeDir(), ".camel-jbang-history");
+        String homeDir = HomeHelper.resolveHomeDir();
+        Path history = Paths.get(homeDir, ".camel-jbang-history");
 
-        try (org.jline.shell.Shell shell = org.jline.shell.Shell.builder()
+        // Alias persistence: aliases are stored in ~/.camel-jbang-aliases
+        Path aliasFile = Paths.get(homeDir, ".camel-jbang-aliases");
+        DefaultAliasManager aliasManager = new DefaultAliasManager(aliasFile);
+
+        // Init script: if ~/.camel-jbang-init exists, it will be executed on shell startup
+        Path initScript = Paths.get(homeDir, ".camel-jbang-init");
+
+        org.jline.shell.ShellBuilder builder = org.jline.shell.Shell.builder()
                 .prompt("camel> ")
                 .groups(registry, new PosixCommandGroup(), new InteractiveCommandGroup())
                 .historyFile(history)
                 .historyCommands(true)
                 .helpCommands(true)
-                .scriptCommands(true)
                 .variableCommands(true)
                 .commandHighlighter(true)
+                .aliasManager(aliasManager)
+                // scriptCommands(true) requires a scriptRunner to be set;
+                // omitting for now until a DefaultScriptRunner is available
                 .variable(LineReader.LIST_MAX, 50)
-                .option(LineReader.Option.GROUP_PERSIST, true)
-                .build()) {
+                .option(LineReader.Option.GROUP_PERSIST, true);
+
+        if (Files.exists(initScript)) {
+            builder.initScript(initScript.toFile());
+        }
+
+        try (org.jline.shell.Shell shell = builder.build()) {
             shell.run();
         }
         return 0;