refactor(@angular/build): parallelize multi-locale inlining with 2D task sharding - #33911
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This pull request introduces parallel multi-locale inlining capabilities to the Angular build system's i18n inliner. It replaces sequential locale-by-locale processing with a parallelized inlineAll method and adds batch processing support (inlineFileBatch) in the worker thread, utilizing an adaptive 2D task-partitioning algorithm to optimize performance and caching. The review feedback highlights two opportunities to further improve performance by parallelizing asynchronous operations: first, by using Promise.all to process locales concurrently within the worker's batch processing loop, and second, by executing persistent cache writes concurrently rather than sequentially.
…ask sharding The new `inlineFileBatch` worker action processes multiple locales per file in memory while parsing sourcemaps and extracting AST metadata once per batch. `I18nInliner` now provides `inlineAll` with adaptive 2D task partitioning across files and locales to maximize worker thread utilization across any project topology. The application builder's `inlineI18n` step now dispatches all locales in parallel prior to executing per-locale post-bundle actions.
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The new
inlineFileBatchworker action processes multiple locales per file in memory while parsing sourcemaps and extracting AST metadata once per batch.I18nInlinernow providesinlineAllwith adaptive 2D task partitioning across files and locales to maximize worker thread utilization across any project topology. The application builder'sinlineI18nstep now dispatches all locales in parallel prior to executing per-locale post-bundle actions.