Scripts: Fallback to src/index.js when no valid scripts in metadata…

… for `build` command (#38367) * Scripts: Fallback to `src/index.js` when no valid scripts in metadata for `build` command * Scripts: Add CHANGELOG entry
WordPress · Jan 31, 2022 · b60dc75 · b60dc75
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commit b60dc75
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diff --git a/packages/scripts/CHANGELOG.md b/packages/scripts/CHANGELOG.md
@@ -6,7 +6,8 @@
 
 ### Bug Fix
 
--   Fix the `build` command that does not generate assets on Windows OS [#38348](https://github.com/WordPress/gutenberg/pull/38348).
+-   Fix the `build` command that does not generate assets on Windows OS ([#38348](https://github.com/WordPress/gutenberg/pull/38348)).
+-   Adds fallback to `src/index.js` when no valid scripts discovered in metadata files when running the `build` command ([#38367](https://github.com/WordPress/gutenberg/pull/38367)).
 
 ## 20.0.1 (2022-01-28)
 

diff --git a/packages/scripts/utils/config.js b/packages/scripts/utils/config.js
@@ -188,7 +188,7 @@ function getWebpackEntryPoints() {
 	} );
 
 	if ( blockMetadataFiles.length > 0 ) {
-		return blockMetadataFiles.reduce(
+		const entryPoints = blockMetadataFiles.reduce(
 			( accumulator, blockMetadataFile ) => {
 				const {
 					editorScript,
@@ -227,6 +227,10 @@ function getWebpackEntryPoints() {
 			},
 			{}
 		);
+
+		if ( Object.keys( entryPoints ).length > 0 ) {
+			return entryPoints;
+		}
 	}
 
 	// 3. Checks whether a standard file name can be detected in the `src` directory,