Alex created FLINK-13102:
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Summary: Travis build optimization
Key: FLINK-13102
URL:
https://issues.apache.org/jira/browse/FLINK-13102 Project: Flink
Issue Type: Improvement
Components: Travis
Reporter: Alex
For some types of PRs, it's relatively easy to tell that the changes in a PR don't affect other parts of the system. Namely, it's documentation changes and maybe Web UI changes (although, the letter is not that frequently and regularly changes).
In such cases, it's possible to run more "lightweight" build steps, skipping the whole build and tests suite.
*Note* (from [~Zentol]): in that case, the check at least should run license checks.
The idea is that for documentation only changes, we can detect such PRs by testing that the list of changed files are only in {{docs/}} subdir (excluding {{docs/_includes/generated/}}). Detecting list of changed files during a Travis build is described in:
* [
https://twitter.com/keeskluskens/status/996005160089477120]
* [
https://reflectoring.io/skip-ci-build/]
*Additional improvement:* if we know that a PR is docs only change, we can also early run links checks during the on PR CI run (currently, such check is running after merge, by a scheduled run).
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