Add reboot! to rails console

[hahmed]

Summary

Add the ability to reboot! inside rails a console, which will clear all local/instance variables and run reload! too. This will run a new console session within the current session and also close the old IRB context.

https://discuss.rubyonrails.org/t/console-is-not-aware-of-code-changes/74782/14

Not sure if a changelog needs to be added?

[simi]

This will not reload the code actually. AFAIK the original idea was to restart console. Something like exec('bin/rails c'), but more generic (preserving original command with all arguments) would work here IMHO.

[hahmed]

The env variables look to be preserved, below is the output, is that ok?

blob1 HEAD % bin/rails c -e test       
Running via Spring preloader in process 99887
Loading test environment (Rails 6.1.0.alpha)
irb(main):001:0> e = :hello
=> :hello
irb(main):002:0> reboot!
Rebooting...
irb(main):001:0> Rails.env
=> "test"
irb(main):002:0> e
Traceback (most recent call last):
        2: from (irb):2
        1: from (irb):2
NameError (undefined local variable or method `e' for main:Object)

[hahmed]

This will not reload the code actually.

Good catch, fixed (I was focused on 💥 the session and forgot about this)

AFAIK the original idea was to restart console. Something like exec('bin/rails c')

We already have access to IRB, so I went with a method call instead of a system call, so we don't need to jump through thor/rails cli...

[rails-bot]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
Thank you for your contributions.

[rails-bot]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
Thank you for your contributions.

[rafaelfranca]

The console is not always IRB. It is configurable in config.console. We need to take in consideration this.

[rails-bot]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
Thank you for your contributions.