What about adding an option to disable command repeat (on Enter key)?

[blocknotes]

Your proposal
It's a minor thing but it would be nice to have an option to disable command repeat when the Enter key is pressed in debug console.

Additional context
For users coming from pry it could be confusing to have the repeat feature on Enter.
Also, IMO, it's not comfortable repeating some commands that have side-effects. Ex. SomeModel.create! name: 'A test'

[blocknotes]

I could try a PR if you like.

Perhaps it could be something like updating this point:
https://github.com/ruby/debug/blob/master/lib/debug/session.rb#L407

to:

@repl_prev_line = line unless ENV['RUBY_DEBUG_NO_REPEAT_ON_ENTER'] # TODO: replace the ENV with a new option in config.rb

[ko1]

• It is useful for step/next/... and so on
• I also understand the Ruby script like SomeModel.create! name: 'A test' is not confortable.

Your request is adding new option to stop the repeating the command, but another option is don't repeat Ruby script.
I'm okay for that.

[ko1]

#793 limited the repeatable commands, like step, next, ... and Ruby expression is no longer repeated with empty line.
If you feel inconvenience with it, please reopen or renew an issue.