Document PSR-6 cache adapters

[rvanlaak]

asm89/twig-cache-extension#32 will introduce a new adapter that allows you to configure any cache pool that implements the CacheItemPoolInterface. This will introduce a lot of adapters to the Twig caching extension: http://php-cache.readthedocs.io/en/latest/

This documentation PR can be merged once the other PR with the adapter is merged and 1.3.0 of the extension was released.

[rvanlaak]

@Nyholm would it be wise to document psr/cache-implementation here too, instead of suggesting cache/adapter-bundle?

asm89/twig-cache-extension#32 is merged now so this one also can get merged.

[Nyholm]

I think you should mention that you have to install a package providing psr/cache-implementation. The cache/adapter-bundle makes it easier to configure that package and add it as a Symfony service.

[rvanlaak]

ping @EmanueleMinotto the PR with the adapter is merged, no release was tagged yet but this PR can be merged after that.

[EmanueleMinotto]

thanks @rvanlaak, I'm waiting for a tag in the asm89/twig-cache-extension repo, after that I'll merge your PR :)

[rvanlaak]

Great! 👍 FYI: I've did some textual changes based on @Nyholm's feedback to clarify the relationship with the PSR-6, you think it is clear now too?

[EmanueleMinotto]

While waiting for asm89/twig-cache-extension:v1.3.0, could you please add a description of allowed classes here or remove the # too?

[rvanlaak]

@EmanueleMinotto I've added classes to the README, still waiting on the tag to be released 👎

[rvanlaak]

@EmanueleMinotto v1.3.0 was tagged! 🎉

[coveralls]

Coverage remained the same at 66.667% when pulling 08cb5d3 on rvanlaak:psr6 into 37aa9e1 on EmanueleMinotto:master.

[EmanueleMinotto]

Fainally merged, @rvanlaak thank you very much for your effort! :)
What about #12 now?

[rvanlaak]

You can use the new adapter already, just do a composer update.