Bug 247900 – Add support for skip-ews GitHub label

• Component: Tools / Tests
• Status: RESOLVED FIXED

[Aakash Jain]

Add support for Skip-EWS GitHub label. This label can be applied to a PR to skip EWS runs. There might be various scenarios in which people might want to apply such a label.

Foe e.g:
- Some engineers might want to abort EWS as soon as the they know that the change is going to be bad (e.g: an important ews on their patch failed, and they don't want to keep running on all other ewses).
- Someone just re-uploaded the change after doing a trivial change (add reviewer name, fix typo in PR title etc.)
- Admins wants to stop a bad PR (which might be breaking EWS bots) from further processing

[Aakash Jain]

Note that, in bugzilla world, there are three ways to do similar thing:
1) r- the patch
2) mark the patch as obsolete from bugzilla UI
3) --no-ews while uploading the patch

In GitHub world, we don't have any way to do this.

Equivalent of r- in GitHub is marking the PR as Request changes, which still triggers the EWS. There is no way to mark a commit as obsolete in GitHub UI without uploading a new commit.

[Aakash Jain]

Pull request: https://github.com/WebKit/WebKit/pull/6476

[EWS]

Committed 256760@main (57ba798e7aa4): <https://commits.webkit.org/256760@main>

Reviewed commits have been landed. Closing PR #6476 and removing active labels.

[Radar WebKit Bug Importer]

<rdar://problem/102444473>

[Jonathan Bedard]

Re-opening for pull request https://github.com/apple/WebKit/pull/216

[EWS]

Committed 252432.837@safari-7614-branch (8dbf19696f48): <https://commits.webkit.org/252432.837@safari-7614-branch>

Reviewed commits have been landed. Closing PR #216 and removing active labels.