Block library: Try to use Babel plugins to inline block.json metadata

babel.config.js

@@ -3,5 +3,6 @@ module.exports = function( api ) {
 
 	return {
 		presets: [ '@wordpress/babel-preset-default' ],
+		plugins: [ 'babel-plugin-inline-json-import' ],
 	};
 };

package.json

@@ -77,6 +77,7 @@
 		"@wordpress/npm-package-json-lint-config": "file:packages/npm-package-json-lint-config",
 		"@wordpress/postcss-themes": "file:packages/postcss-themes",
 		"@wordpress/scripts": "file:packages/scripts",
+		"babel-plugin-inline-json-import": "0.3.2",
 		"benchmark": "2.1.4",
 		"browserslist": "4.4.1",
 		"chalk": "2.4.1",

packages/block-library/README.md

@@ -18,7 +18,7 @@ _This package assumes that your code will run in an **ES2015+** environment. If
 
 ### registerCoreBlocks
 
-[src/index.js#L70-L132](src/index.js#L70-L132)
+[src/index.js#L71-L136](src/index.js#L71-L136)
 
 Function to register core blocks provided by the block editor.
 

packages/block-library/src/index.js

@@ -9,6 +9,7 @@ import {
 	setDefaultBlockName,
 	setFreeformContentHandlerName,
 	setUnregisteredTypeHandlerName,
+	unstable__setBlockMetadata, // eslint-disable-line camelcase
 } from '@wordpress/blocks';
 
 /**
@@ -120,7 +121,10 @@ export const registerCoreBlocks = () => {
 		if ( ! block ) {
 			return;
 		}
-		const { name, settings } = block;
+		const { metadata, settings, name = metadata.name } = block;
+		if ( metadata ) {
+			unstable__setBlockMetadata( metadata ); // eslint-disable-line camelcase
+		}
 		registerBlockType( name, settings );
 	} );
 

packages/block-library/src/text-columns/block.json

@@ -0,0 +1,29 @@
+{
+	"name": "core/text-columns",
+	"icon": "columns",
+	"category": "layout",
+	"attributes": {
+		"content": {
+			"type": "array",
+			"source": "query",
+			"selector": "p",
+			"query": {
+				"children": {
+					"type": "string",
+					"source": "html"
+				}
+			},
+			"default": [ { }, { } ]
+		},
+		"columns": {
+			"type": "number",
+			"default": 2
+		},
+		"width": {
+			"type": "string"
+		}
+	},
+	"supports": {
+		"inserter": false
+	}
+}

packages/block-library/src/text-columns/index.js

@@ -18,44 +18,18 @@ import {
 } from '@wordpress/block-editor';
 import deprecated from '@wordpress/deprecated';
 
-export const name = 'core/text-columns';
+/**
+ * Internal dependencies
+ */
+import metadata from './block.json';
 
-export const settings = {
-	// Disable insertion as this block is deprecated and ultimately replaced by the Columns block.
-	supports: {
-		inserter: false,
-	},
+export { metadata };
 
+export const settings = {
 	title: __( 'Text Columns (deprecated)' ),
 
 	description: __( 'This block is deprecated. Please use the Columns block instead.' ),
 
-	icon: 'columns',
-
-	category: 'layout',
-
-	attributes: {
-		content: {
-			type: 'array',
-			source: 'query',
-			selector: 'p',
-			query: {
-				children: {
-					type: 'string',
-					source: 'html',
-				},
-			},
-			default: [ {}, {} ],
-		},
-		columns: {
-			type: 'number',
-			default: 2,
-		},
-		width: {
-			type: 'string',
-		},
-	},
-
 	transforms: {
 		to: [
 			{

packages/blocks/src/api/index.js

@@ -44,6 +44,7 @@ export {
 	hasChildBlocks,
 	hasChildBlocksWithInserterSupport,
 	unstable__bootstrapServerSideBlockDefinitions, // eslint-disable-line camelcase
+	unstable__setBlockMetadata, // eslint-disable-line camelcase
 	registerBlockStyle,
 	unregisterBlockStyle,
 } from './registration';

packages/blocks/src/api/registration.js

@@ -52,6 +52,15 @@ export function unstable__bootstrapServerSideBlockDefinitions( definitions ) { /
 	serverSideBlockDefinitions = definitions;
 }
 
+/**
+ * Sets the block's metadata.
+ *
+ * @param {Object} definitions Server-side block definitions
+ */
+export function unstable__setBlockMetadata( { name, ...settings } ) { // eslint-disable-line camelcase
+	serverSideBlockDefinitions[ name ] = settings;
+}
+
 /**
  * Registers a new block provided a unique name and an object defining its
  * behavior. Once registered, the block is made available as an option to any