Dependency Extraction Webpack Plugin: Externalize script modules as import() and emit module_dependencies#76397
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…mport() and emit module_dependencies Packages like @wordpress/abilities and @wordpress/core-abilities are script modules (registered via wpScriptModuleExports) that don't expose window globals. The plugin currently treats all @wordpress/* packages as window-global scripts, which breaks at runtime. This adds these packages to the existing defaultRequestToExternalModule switch and makes non-module (IIFE) builds also consult that function via a try-catch bridge. Script module externals are detected in processModule via m.externalType === 'import' and emitted as module_dependencies in the asset file, matching the format WordPress PHP expects.
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Size Change: 0 B Total Size: 6.89 MB ℹ️ View Unchanged
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Flaky tests detected in 28eac5d. 🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/22956287715
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jorgefilipecosta
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[Type] Bug
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Summary
FIxes: #75196
Packages like
@wordpress/abilitiesand@wordpress/core-abilitiesare script modules (registered viawpScriptModuleExports) that don't exposewindowglobals. The webpack dependency extraction plugin currently treats all@wordpress/*packages as window-global scripts, which causes:window.wp.abilities(doesn't exist at runtime)wp-abilitiesindependenciesinstead ofmodule_dependenciesin the asset fileThis PR adds these packages to the existing
defaultRequestToExternalModuleswitch (alongside@wordpress/a11yand@wordpress/interactivity-router) and makes non-module (IIFE) builds also consult that function. Script module externals are detected inprocessModuleviam.externalType === 'import'and emitted asmodule_dependenciesin the asset file, matching the format WordPress PHP expects.Changes
util.js— 2 lines: add@wordpress/abilitiesand@wordpress/core-abilitiesto the existingdefaultRequestToExternalModuleswitchindex.js— 3 changes:defaultRequestToExternalModulefirst (try-catch), fall through todefaultRequestToExternalfor regular scriptsprocessModule: detect import-type externals viam.externalType === 'import', route to separatechunkScriptModuleStaticDeps/chunkScriptModuleDynamicDepssetsmodule_dependenciesarray with static/dynamic entriesTest plan
npm install && npm run build. Check out https://github.com/jonathanbossenger/wp-ai-client-demo/tree/debug-wp-build-2 (branch debug-wp-build-2 ).