[webkit-changes] [WebKit/WebKit] 84a762: [ews] upload-to-s3 fails without any logs

[Aakash J]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 84a762a13ce17bb1ca9d20e5efb05534bddb9f1d
      https://github.com/WebKit/WebKit/commit/84a762a13ce17bb1ca9d20e5efb05534bddb9f1d
  Author: Aakash Jain <aakash_jain at apple.com>
  Date:   2023-08-09 (Wed, 09 Aug 2023)

  Changed paths:
    M Tools/CISupport/ews-build/steps.py
    M Tools/CISupport/ews-build/steps_unittest.py

  Log Message:
  -----------
  [ews] upload-to-s3 fails without any logs
https://bugs.webkit.org/show_bug.cgi?id=259929

Rubber-stamped by Ryan Haddad.

- Add more logs to cover scenarios when UploadFileToS3 step exits pre-maturely.
- Add more logging to GenerateS3URL to help in debugging. This logging goes to
buildbot server.
- Make GenerateS3URL fail when the url isn't generated properly.

* Tools/CISupport/ews-build/steps.py:
(UploadFileToS3):
(UploadFileToS3.run):
(GenerateS3URL.finished):

Canonical link: https://commits.webkit.org/266722@main