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Add a selfossctl CLI tool #1440

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Add a selfossctl CLI tool #1440

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@jtojnar jtojnar commented Jun 15, 2023 •
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This replaces the cliupdate.php script with a symfony/console based entry point:

php bin/selfossctl update

In the future we are going to introduce more commands.

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@jtojnar jtojnar changed the title Add a selfoss CLI tool Add a selfossctl CLI tool Jun 15, 2023
@jtojnar jtojnar added this to the 2.20 milestone Jun 15, 2023
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jtojnar commented Jun 15, 2023

I do not really like Symfony console.

ContentLoader used transitively by UpdateCommand is obtaining a DatabaseConnection through dependency injection. As a result, every time selfossctl is run, it will attempt to connect to database.

It is possible to make loading the commands lazy using ContainerCommandLoader (if it were not buggy with slince/di) but because that does not have access to command descriptions, it will still require instantiating all commands when doing selfossctl list.

Now, Symfony Console also supports lazy command descriptions but I would either have to use Symfony’s DI container (regular commands are getting turned to lazy ones in AddConsoleCommandPass) or create LazyCommands manually (that’s what we are doing now).

And even then selfossctl help update still requires instantiating the command.

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Add a selfossctl CLI tool
07b6cfb 
This replaces the `cliupdate.php` script with a `symfony/console` based entry point:

    php bin/selfossctl update

In the future we are going to introduce more commands.

We are creating `LazyCommand`s manually because `Symfony\Component\Console\CommandLoader\ContainerCommandLoader` does not support lazy loading of commands.
That appears to only be supported through Symfony’s DI container:
https://symfony.com/blog/new-in-symfony-5-3-lazy-command-description
Specifically, regular commands are getting turned to lazy ones in `Symfony\Component\Console\DependencyInjection\AddConsoleCommandPass`.

The individual commands cannot be more lazy so `selfossctl help update` will still connect to database.
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