[FLINK-19810] Automatically run a basic NOTICE file check on CI

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.0
• Component/s: Build System
• Labels: pull-request-available
• Assignee: Robert Metzger
• Reporter: Robert Metzger
• Created: 26/Oct/20 10:15
• Updated: 05/Nov/20 06:20
• Resolved: 04/Nov/20 19:30

Description

For every release, we are manually validating the NOTICE files, according to this wiki page: https://cwiki.apache.org/confluence/display/FLINK/Licensing

The most time-consuming task is ensuring that all modules that deploy a shaded dependency to maven central are properly documenting this dependency in their NOTICE file.

I would like to add a tool to Flink that checks if all shaded dependencies are at least mentioned in the NOTICE file.
We will still need to perform a manual checks, but the tool should catch the most common, severe and difficult to find problems.

Issue Links

• causes: FLINK-19986 The automatic license check failed
• links to: GitHub Pull Request #13796