Twig necessary for JSON-Output since 4.6

[CatoTH]

Hi,

starting version 4.6, it looks like twig, including symfony//asset is necessary to create the JSON output from the console.
The is the error message that I get (when doing a cache:clear, in this case):

Script cache:clear returned with error code 1
!!
!!   // Clearing the cache for the prod environment with debug
!!   // false
!!
!!
!!  In CheckExceptionOnInvalidReferenceBehaviorPass.php line 86:
!!
!!    The service "nelmio_api_doc.render_docs.html" has a dependency on a non-exi
!!    stent service "twig".
!!
!!
!!  cache:clear [--no-warmup] [--no-optional-warmers]
!!
!!
Script @auto-scripts was called via post-update-cmd

It does work again if I restrict the version to 4.5.

[rwatt-futurenet]

You can fix this by making the service only load the JSON renderer by adding this to services.yaml;

    nelmio_api_doc.render_docs:
        class: Nelmio\ApiDocBundle\Render\RenderOpenApi
        arguments:
            - "@nelmio_api_doc.generator_locator"
            - "@nelmio_api_doc.render_docs.json"

The first argument should always be generator_locator, the rest are the renderers you want to make available - the built in ones are nelmio_api_doc.render_docs.html, nelmio_api_doc.render_docs.json and nelmio_api_doc.render_docs.yaml. Only the html renderer needs twig.

[Th3Mouk]

This regression has been introduced by #1842, a way to fix it can be probably to register all new render services on the same tag and use a service subscriber/locator.
Or if it's not possible when twig is not installed, then add a new pass compiler to register right services on runtime.
I don't have enough time to fix it myself today, don't hesitate to try it on your side and link the PR to this issue.

[GuilhemN]

Hi, thank you for the report!
Could you check whether #1878 does indeed fix your issue please?

[Goazil]

Hi, thank you for the report!
Could you check whether #1878 does indeed fix your issue please?

Hi @GuilhemN, I had the same issue.

With your PR it seems that the problem is no longer present.

[CatoTH]

@GuilhemN Thank you!

[BonBonSlick]

@rwatt-futurenet There is no extension able to load the configuration for "nelmio_api_doc.render_docs"
or

** The service "nelmio_api_doc.render_docs" has a dependency on a non-existent service "@nelmio_api_doc.generator_locator". Did you mean one of these: "nelmio_api_doc.generator.default", "nelmio_api_doc.generator"?
**