matrei opened a new pull request, #2364:
URL: https://github.com/apache/groovy/pull/2364
## Background
As part of the ongoing effort to upgrade Grails to Groovy 5, it became
apparent that the `Groovysh` class is no longer available. It was replaced by
the `Main` class when Groovy switched to JLine 3 (introduced in #2263).
## Current Situation
Grails currently relies on `Groovysh` to start an interactive shell with a
preconfigured `Binding`, for example:
```groovy
Binding binding = new Binding()
binding.setVariable('ctx', this)
binding.setVariable(GrailsApplication.APPLICATION_ID,
getBean(GrailsApplication))
new Groovysh(binding, new IO()).run('')
```
This approach allows Grails to inject application-specific context into the
shell.
## Problem
The new `Main` class does not provide a programmatic entry point that allows
callers to supply a custom `Binding`. As a result, there is no straightforward
way to replicate the existing Grails behavior using the new shell
infrastructure.
## Proposed Solution
This PR introduces a programmatic entry point to the `Main` class that makes
it possible to inject a `Binding`. This restores the ability for Grails (and
other consumers) to launch the Groovy shell with a predefined execution
context, preserving existing functionality while remaining compatible with
Groovy 5.
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