fix(bundler-plugins): Integration with monorepo build#21479
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June 19, 2026 16:02
Update the bundler-plugins so that integration tests run in CI, and the module follows the same patterns as the rest of sentry-javascript.
Issue found by sentry pr review bot: > Potential issue: The fallback logic for the webpack plugin's component > annotation loader is incorrect. In an ESM context, where `__dirname` > is undefined, the code attempts to resolve a file with an `.mjs` > extension. However, the new Rollup build configuration outputs `.js` > files for both CJS and ESM formats. This discrepancy will cause a > runtime crash when the plugin is used in a non-packaged environment > (e.g., via `yarn link` or direct monorepo consumption), as the primary > module resolution will fail, and the incorrect fallback path will be > used. Fix: since both formats emit .js, the extension is unconditional — replaced the branch with a single component-annotation-transform.js path. Verified the rebuilt ESM and CJS both now reference .js. The unused __dirname conditional is gone; fileURLToPath/path imports are still used.
Issue found by a code review agent: > Potential issue: In the `uploadSourcemaps` function, the > cleanup of a temporary directory is initiated using `void > startSpan()`, which does not await the completion of the > cleanup promise. This creates a race condition where the main > function can return and the parent process can exit before the > asynchronous file deletion (`fs.promises.rm`) is finished. In > environments where processes terminate quickly after a task, > such as in CI/CD pipelines, this can lead to the temporary > directory (`sentry-bundler-plugin-upload-*`) being left behind. > Over time, the accumulation of these orphaned directories can > consume significant disk space, resulting in a resource leak. Fixed by awaiting the cleanup function.
This isn't super significant, but it's a little simpler to just converge on the same test framework used by the rest of the monorepo.
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Update the bundler-plugins so that integration tests run in CI, and the module follows the same patterns as the rest of sentry-javascript.