NIFI-13125 - Flow Version Diff View

[pvillard31]

Summary

NIFI-13125 - Flow Version Diff View

I used #9109 as a starting point and coded something similar for NiFi 2.x. Definitely not a UI expert so my approach may not be the best one. Happy to collaborate with someone more experienced on the UI side.

This feature is particularly useful when a user sees that a versioned process group can be updated to a new version and the user would like to see what are the differences with the current version before upgrading the process group.

Access to the view is made available when listing versions for a versioned process group:

Clicking on the diff icon for the desired version will show the diff between the current version and the selected version

Versions can be selected via the dropdown lists:

Filtering is also possible to filter the content of the table, and the columns can also be sorted alphabetically.

The current feature does not allow comparison across branches but that could be considered as a follow-up improvement if the community sees value into it (I'm not sure I picture a use case where it would be very useful).

Tracking

Please complete the following tracking steps prior to pull request creation.

Issue Tracking

• Apache NiFi Jira issue created

Pull Request Tracking

• Pull Request title starts with Apache NiFi Jira issue number, such as NIFI-00000
• Pull Request commit message starts with Apache NiFi Jira issue number, as such NIFI-00000

Pull Request Formatting

• Pull Request based on current revision of the main branch
• Pull Request refers to a feature branch with one commit containing changes

Verification

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Build

• Build completed using ./mvnw clean install -P contrib-check
  • JDK 21
  • JDK 25

Licensing

• New dependencies are compatible with the Apache License 2.0 according to the License Policy
• New dependencies are documented in applicable LICENSE and NOTICE files

Documentation

• Documentation formatting appears as expected in rendered files

[scottyaslan]

Thanks for this contribution. I have left some comments. I am happy to review and help iterate here and continue to improve the UX for this feature.

[pvillard31]

Thanks for all the feedback @scottyaslan - highly appreciated! I have (hopefully) made the changes you had in mind. The only thing that is not ok is the timestamp in the dropdown lists when selecting versions. Will figure it out tomorrow. It looks so much better now, thanks for all of the review comments!

[pvillard31]

Addressed the timestamp issue.