Merge staticfiles into core

[Collin Anderson]

(James Aylett on stage at duth)

If you accidentally use {% load static %} instead of {% load staticfiles %} you won't take advantage of storage engines. However, 3rd-party apps won't know if the staticfiles library is installed or not.

One solution he mentioned is having {% load static %} match the behavior of {% load admin_static %} (where it uses staticfiles only if it's installed), but that would probably involve core importing code from contrib (usually a no-no).

Another option he gave was merging staticfiles into core. He thought it might be contentious, but I think is actually a better idea.

[Collin Anderson]

We could leave HashedFilesMixin, ManifestFilesMixin, etc in contrib, but at least make sure the template tag works correctly. People can reference ManifestFilesMixin in their settings files if they want to use it.

[Tim Graham]

How about a discussion on the mailing list first? :-)

[Claude Paroz]

See also #21221

[Collin Anderson]

actually, I do prefer the approach in #21221, as long as we're ok with a contrib import from core.

[Aymeric Augustin]

I'm sad to import contrib in core but perhaps that's the pragmatic thing. Count me as a -1.

[Aymeric Augustin]

Err I meant a -0. Great typo there.

[Collin Anderson]

I'll wontfix this assuming #21221 moves through smoothly.