React Native Bundle DiscoveryBundle size checks in CI
compare exits with code 1 when any check fails:
| Option | Fails when | Example |
|---|---|---|
--fail-on-increase | The bundle grows more than the limit (bytes or % of "before") | 50KB, 0.5MB, 51200, 5% |
--max-size | The "after" bundle is bigger than the limit | 3MB |
--fail-on | New duplicate and/or deprecated packages appear | new-duplicates,new-deprecated |
npx react-native-bundle-discovery-cli compare --before main-stats.json --after pr-stats.json \
--fail-on-increase 50KB \
--max-size 3MB \
--fail-on new-duplicates,new-deprecatedGitHub Actions
Works out of the box: the markdown report is added to the job summary and failed checks are shown as error annotations.
- run: npx react-native-bundle-discovery-cli compare --before main-stats.json --after pr-stats.json --fail-on-increase 5%To post the report as a PR comment, use --format markdown.