Symfony: Make the log level of match route log configurable

[tdesvenain]

I think it would be fine if we can set the "Matched route..." log level to DEBUG.
On some projects, INFO may not be the accurate level for this information.

[Tobion]

Just change the injected logger. You can for example use a custom decorator that changes info to debug. There is no point in making such things configurable in the framework itself.

[geri777]

Some lines of sample code would be appreciated

[jt2k]

I know this issue is closed and a few years old, but I was looking to accomplish this and thought I would share my solution (application is using framework-bundle 4.4).

You can find the default router_listener service (Symfony\Component\HttpKernel\EventListener\RouterListener) configured here: https://github.com/symfony/symfony/blob/3619661d65711901852c6c2ba0b33c3d273593ca/src/Symfony/Bundle/FrameworkBundle/Resources/config/routing.xml#L108-L117

To override, I converted this definition to YAML and added it to my application's services.yaml file:

services:
    # Override router_listener service defined in vendor/symfony/framework-bundle/Resources/config/routing.xml
    # to suppress logger (definition below is identical except for passing in null for the logger)
    router_listener:
        class: Symfony\Component\HttpKernel\EventListener\RouterListener
        arguments:
            - '@router'
            - '@request_stack'
            - '@?router.request_context'
            - null
            - '%kernel.project_dir%'
            - '%kernel.debug%'

This definition is identical, except that null is passed for the logger. As mentioned above, perhaps a better solution is to implement a custom logger that adjusts the level down, but since the only logging happening in the RouterListener is the info-level match log that I want to suppress, I decided to take the easy way out. Hopefully I won't regret this in the future!

Also, using named arguments might be better/clearer, but my goal was to match the XML configuration as close as possible.