Add unstable manual shared bundles#9251
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↪️ Pull Request
This is a PR for an unstable
unstable_manualSharedBundlesoption for the Default Bundler. We've found that being able to stipulate unsplittable files via config helped transition bundlers internally, while leveraging previous bundler configs which Parcel could not interpret.With this change, users can specify a "parent" file and a glob of
assets, resulting in a single bundle containing those assets only, and deduplicating where possible. They can also specify anameandtypesof assets to be supported. The example below will create two bundles from "sharedFile.tsx" , one forcssassets and one forjs.Config
stringArray<Glob>?number?string?Array<string>['js', 'css']Usage
{ "@parcel/bundler-default": { "unstable_manualSharedBundles": [ { "name": "mySharedCode", "parent": "src/packages/sharing/sharedfiles.tsx", "types": ["js", "css"], "assets": ["**/*"], "split": 3 } ] } }This PR also includes the ability to have
modespecific config for the bundler. Config inside amodekey will be merged over the general mode properties. Note that onlydevelopmentandproductionare currently supported, custom modes can't have custom config.{ "@parcel/bundler-default": { "development": { "disableSharedBundles": true } } }Notable Changes
manualSharedBundlewhich corresponds to the optionalnamefrom the user-defined config. This helps us name these new manual shared bundles appropriately later with a custom namersplit: number.👂 Questions
✔️ PR Todo