Claus Ibsen created CAMEL-26428:
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Summary: camel-jbang - The CLI creates only the command that the
command line runs
Key: CAMEL-26428
URL: https://issues.apache.org/jira/browse/CAMEL-26428
Project: Camel
Issue Type: Improvement
Components: camel-jbang
Reporter: Claus Ibsen
Assignee: Claus Ibsen
Fix For: 4.24.0
The CLI creates all its commands (143 in camel-jbang-core, plus the commands of
the plugins embedded in the launcher) on every run, also when the command line
runs one of them, such as {{camel version}} or {{camel ps}}. Creating them
loads their classes and builds the picocli model of each.
Measured on main (JDK 25), with CAMEL-26427: the model of the commands is about
490 ms of a {{camel version}} of 566 ms (about 230 ms loading and creating the
command classes, about 115 ms the picocli model, about 150 ms the commands of
the embedded plugins, mostly the monitor of the TUI). Creating only the
commands that run takes a few milliseconds.
The CLI should create only the command that the command line names, and all
commands for the help, a command it does not know (a plugin, or a typo), and
the commands that use the other commands or the plugins (shell, completion,
run, export, cmd).
Found while measuring the startup for CAMEL-23810.
_Claude Code on behalf of davsclaus (Claus Ibsen)_
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