--em option no longer supported in doctrine:migrations:diff

[marcelkorpel]

Symfony version(s) affected: 5.1.3

Description
According to https://symfony.com/doc/current/doctrine/multiple_entity_managers.html one can work with multiple entity managers and issue a command like

$ php bin/console doctrine:migrations:diff --em=customer

to select a different entity manager, as configured in config/packages/doctrine.yaml. This worked a year ago with Symfony 4. Currently, this command outputs

  The "--em" option does not exist.  
                                     

doctrine:migrations:diff [--configuration CONFIGURATION] [--db-configuration DB-CONFIGURATION] [--namespace NAMESPACE] [--filter-expression FILTER-EXPRESSION] [--formatted] [--line-length LINE-LENGTH] [--check-database-platform [CHECK-DATABASE-PLATFORM]] [--allow-empty-diff] [-h|--help] [-q|--quiet] [-v|vv|vvv|--verbose] [-V|--version] [--ansi] [--no-ansi] [-n|--no-interaction] [-e|--env ENV] [--no-debug] [--] <command>

The same is true for doctrine:migrations:migrate.

How to reproduce

# config/packages/doctrine.yaml
doctrine:
    dbal:
        connections:
            user:
                driver: 'pdo_mysql'
                server_version: '5.7'
                charset: utf8mb4
                default_table_options:
                    charset: utf8mb4
                    collate: utf8mb4_unicode_ci
                url: '%env(resolve:DATABASE_URL_USER)%'

        # IMPORTANT: You MUST configure your server version,
        # either here or in the DATABASE_URL env var (see .env file)
        #server_version: '5.7'
    orm:
        auto_generate_proxy_classes: true
        default_entity_manager: user
        entity_managers:
            user:
                connection: user
                mappings:
                    User:
                        is_bundle: false
                        type: annotation
                        dir: '%kernel.project_dir%/src/Entity/User'
                        prefix: 'App\Entity\User'
                        alias: User

# config/packages/doctrine_migrations.yaml
doctrine_migrations:
    connection: user
    migrations_paths:
        # namespace is arbitrary but should be different from App\Migrations
        # as migrations classes should NOT be autoloaded
        'DoctrineMigrations': '%kernel.project_dir%/migrations'

# config-migrations/doctrine_migrations_user.yaml
name: UserMigrations
migrations_namespace: App\Migrations\User
table_name: Migrations
migrations_directory: src/Migrations/User

Run

$ bin/console doctrine:migrations:diff --em=user --configuration=config-migrations/doctrine_migrations_user.yaml

[javiereguiluz]

Marcel, you are right about this. Thanks for reporting!

However, after looking into this, it looks like this option was temporarily removed and it's being readded.

Doctrine Migrations already merged the option: https://github.com/doctrine/migrations/pull/1023/files

And there's a pending PR to add it to Symfony's bundle:
doctrine/DoctrineMigrationsBundle#364

So, let's close this one as "fixed" because it will be fixed very soon.