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Scripts: Scan block.json files to detect entry points for the build process #37661

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merged 1 commit into from
Jan 11, 2022

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@gziolo gziolo commented Dec 30, 2021

Description

Partially addresses #25188.

This PR enhances how entry points for the plugin are discovered. They now can be detected by scanning all script fields in block.json files located in the src directory. The fallback entry point remains the same src/index.js (other supported extensions: .jsx, .ts, and .tsx) in case there is no block.json file found.

This complements #37612 where the @wordpress/create-block scaffolding tool can now put block.json file in the src directory and copies those files to the build folder when running wp-scripts build. The same change can also work separately with extra effort on the plugin's author side.

More details in the screencasts:

wp-scripts-build-block-json-1.mov
wp-scripts-build-2.mov

Screenshot 2021-12-30 at 15 38 16

How has this been tested?

Scaffolding

I generated three blocks using templates included in Gutenberg

ES5

npx wp-create-block --no-wp-scripts -t es5 es5-example

ESNext + JSX (the default)

npx wp-create-block --no-wp-scripts esnext-example
cd esnext-example
../node_modules/.bin/wp-scripts build
cd ..

Gutenpride (handbook tutorial)

npx wp-create-block --no-wp-scripts -t @wordpress/create-block-tutorial-template gutenpride
cd gutenpride
../node_modules/.bin/wp-scripts build
cd ..

WordPress environment

I used wp-env command integrated with the Gutenberg project.

I created an override to the existing config:

File: .wp-env.override.json

{
	"plugins": [ ".", "./es5-example", "./esnext-example", "./gutenpride" ]
}

I executed:

npx wp-env start

Testing plugins

I opened the following URL to test all the installed plugins: http://localhost:8888/wp-admin.

I created a new post and inserter all 3 blocks:

  • ES 5 Example
  • Esnext Example
  • Gutenpride (I also typed a phrase Gutenpride)

I saved the post and confirmed it renders correctly on the frontend.

Screenshots

Editor:

Screenshot 2021-12-30 at 08 18 31

Frontend:

Screenshot 2021-12-30 at 08 18 38

Types of changes

New feature (non-breaking change which adds functionality).

Checklist:

  • My code is tested.
  • My code follows the WordPress code style.
  • [-] My code follows the accessibility standards.
  • [-] I've tested my changes with keyboard and screen readers.
  • My code has proper inline documentation.
  • I've included developer documentation if appropriate.
  • [-] I've updated all React Native files affected by any refactorings/renamings in this PR (please manually search all *.native.js files for terms that need renaming or removal).

@gziolo gziolo added [Type] Enhancement A suggestion for improvement. [Tool] WP Scripts /packages/scripts labels Dec 30, 2021
@gziolo gziolo self-assigned this Dec 30, 2021
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Size Change: 0 B

Total Size: 1.13 MB

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@gziolo gziolo force-pushed the update/scan-block-json-entry-points branch from 0f751a3 to 87dcefd Compare December 30, 2021 11:56
name( module, chunks, cacheGroupKey ) {
return `${ cacheGroupKey }-${ chunks[ 0 ].name }`;
name( _, chunks, cacheGroupKey ) {
const chunkName = chunks[ 0 ].name;
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We have to account for subfolders now. We missed that before which forces developers to use a flat structure in the build folder.

@@ -45,6 +45,6 @@ module.exports = {
],
reporters: [
'default',
'<rootDir>packages/scripts/config/jest-github-actions-reporter.js',
'<rootDir>packages/scripts/config/jest-github-actions-reporter/index.js',
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I moved this reporter to a subfolder to ensure we have configs only at the root level of the config directory.

@gziolo gziolo marked this pull request as ready for review December 30, 2021 12:13
@gziolo gziolo requested a review from ryanwelcher December 30, 2021 12:16
@gziolo gziolo added the Developer Experience Ideas about improving block and theme developer experience label Dec 30, 2021
@gziolo gziolo changed the title Scripts: Scan block.json files to detect entry points in the build process Scripts: Scan block.json files to detect entry points for the build process Dec 31, 2021
@gziolo gziolo force-pushed the update/scan-block-json-entry-points branch from 87dcefd to e533e67 Compare January 11, 2022 09:25
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gziolo commented Jan 11, 2022

I rebased this branch with the latest changes applied to trunk. I tested again all 3 templates included in the Gutenberg project and they still work as expected. The only case where I'm not 100% sure how it would fit into the existing project is when someone has src/index.js as an entry point but also puts block.json files in subfolders. I assume that in such a setup you don't list file paths for JavaScript files because you would rather register a single entry point to use with all blocks and reference it as a script handle in block.json. If that's is true then the current config covers that case.

@gziolo gziolo merged commit cc569b2 into trunk Jan 11, 2022
@gziolo gziolo deleted the update/scan-block-json-entry-points branch January 11, 2022 10:08
@github-actions github-actions bot added this to the Gutenberg 12.4 milestone Jan 11, 2022
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