perf: enable Rspack's barrel file optimization by default#5840
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chenjiahan merged 1 commit intomainfrom Aug 14, 2025
Merged
perf: enable Rspack's barrel file optimization by default#5840chenjiahan merged 1 commit intomainfrom
chenjiahan merged 1 commit intomainfrom
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Pull Request Overview
Enable Rspack's experimental barrel file optimization by default to improve build performance for applications using barrel files. This optimization is enabled by setting lazyBarrel: true in the experiments configuration.
Key Changes
- Added
lazyBarrel: trueto the default Rspack experiments configuration in the basic plugin - Updated test snapshots to reflect the new configuration option
Reviewed Changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.
Show a summary per file
| File | Description |
|---|---|
| packages/core/src/plugins/basic.ts | Added lazyBarrel experiment configuration |
| packages/core/tests/snapshots/environments.test.ts.snap | Updated test snapshots for environment configurations |
| packages/core/tests/snapshots/default.test.ts.snap | Updated test snapshots for default plugin configurations |
| packages/core/tests/snapshots/builder.test.ts.snap | Updated test snapshots for builder configurations |
| packages/core/tests/snapshots/basic.test.ts.snap | Updated test snapshots for basic plugin configurations |
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Summary
Enable Rspack's experimental barrel file optimization by default.
When building applications with barrel files, this optimization should make builds significantly faster.
This optimization can be disabled via experiments.lazyBarrel:
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