Editor: Make asset registration .asset.php optional for blocks

[josephfusco]

It is a hard requirement that a *.asset.php file is present to register a block in WordPress. Otherwise, it throws a Warning:

function register_block_script_handle was called incorrectly. The asset file (/wp-content/uploads/faustwp/blocks/block-a/index.asset.php) for the "editorScript" defined in "create-block/block-a" block definition is missing. (This message was added in version 5.5.0.)

and the block will not appear in the inserter.

Trac ticket: https://core.trac.wordpress.org/ticket/60460

Gutenberg issue: WordPress/gutenberg#57234

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This Pull Request is for code review only. Please keep all other discussion in the Trac ticket. Do not merge this Pull Request. See GitHub Pull Requests for Code Review in the Core Handbook for more details.

[github-actions]

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[github-actions]

Hi @josephfusco! 👋

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[gziolo]

Resharing my WordPress/gutenberg#57234 (comment) from the issue in the Gutenberg repository. I propose that we remove the handling for the missing asset file and provide the default values instead. To land this patch, the required changes would be removing the proposed filter, and the _doing_it_wrong handling. It would be great to add a unit test that covers the case when there is no asset file provided.

[colorful-tones]

It looks like unit tests are failing. I do not have the knowledge to fix or write 'em. Would it be necessary for merging, and could we have a separate follow-up PR to address the tests @gziolo ?

[colorful-tones]

Also, would it be easier to move this patch to be against the Gutenberg repo?

[josephfusco]

A lot of the failing tests were fixed with 5c67d33, however there are still a few tests failing but seem unrelated.

Also, would it be easier to move this patch to be against the Gutenberg repo?

If the code for register_block_script_handle is sourced from outside of wordpress-develop, I'm happy to move this patch there.

[gziolo]

Thank you for iterations. All changes need to get applied in WordPress core.

[colorful-tones]

Nice progress here @josephfusco ! 🕺

[github-actions]

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Props joefusco, gziolo, spacedmonkey, colorful-tones.

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Co-authored-by: josephfusco <joefusco@git.wordpress.org>
Co-authored-by: gziolo <gziolo@git.wordpress.org>
Co-authored-by: spacedmonkey <spacedmonkey@git.wordpress.org>
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[gziolo]

Updating code directly on GitHub isn't the best idea after all 😅

The good news is that it's ready to go!

[gziolo]

Committed with https://core.trac.wordpress.org/changeset/57559.

[colorful-tones]

Thanks for getting this over the line @gziolo and thanks @josephfusco for kicking it off 🙌