[console] Add option for maintenance mode in certain commands

[littlethoughts]

Problem/Motivation

It would be nice to have an option whether the site should be put into maintenance mode, like --maintenance-mode for example.

More control over the command and a faster execution should be the outcome

[jmolivas]

@littlethoughts can you elaborate more on this feature request?

[LOBsTerr]

PR for DC: #3811
PR for DC Core: hechoendrupal/drupal-console-core#326

I have create a new maintenance listener, which checks maintenance property on the command and enable/ disable maintenance mode.
Currently, I enabled this functionality only for DB restore command.
Please, let me know for which command we need this functionality.

[littlethoughts]

Cool, how could I test it?

I have a custom command where it would be useful, which is assembling config files. I could also achieve this functionality by writing a chain command I think. If that is much simpler than integrating your solution maybe that's enough.

From the top of my head, these would also be candidates, because they could be run in a production environment and take some time / need to preserve a state:

• database:dump
• cache:rebuild
• config:import
• queue:run

[jmolivas]

@littlethoughts I have not tested this auto-maintenance-mode feature.

But what we commonly used chain commands is kinda like this. Add a new chain file at console/chain/build.yml
Containing this:

command:
  name: build
  description: 'Build site'
commands:
  # Import configuration
  - command: config:import
  # Rebuild caches.
  - command: cache:rebuild
    arguments:
        cache: all

Then use it as:

drupal build

[LOBsTerr]

@littlethoughts

In the configure method you need to call enableMaintenance, I can change to an option

https://github.com/hechoendrupal/drupal-console/pull/3811/files

[jmolivas]

@LOBsTerr I think as command configuration is great.

When you mentioned as change to an option you mean a command or a global option?

[LOBsTerr]

@jmolivas I meant global. It can be useful for developers of custom commands

[LOBsTerr]

I'm closing the issue, feel free to reopen it if you have any other ideas