Syncing web platform tests (WPT)

./mach update-wpt --sync --patch --token-file token

Token is a file containing a personal access token for a github account that is an administrator in the w3c/web-platform-tests organization.

First try upstreaming all local patches. If there are any conflicts, make a note of the commit, then run ./mach update-wpt --abort and restart the process, removing the conflicting commit.

If any conflicts occur while rebasing the patches, resolve the conflict in tests/wpt/sync and continue the rebase. Run ./mach update-wpt --continue once the rebase is successful.

Once update-wpt completes, redo any commits that were removed from upstreaming, preserving the original author information and commit message. These new will need to be upstreamed as part of a separate update-wpt operation.

Run ./mach update-manifest, then git commit -a --amend -no-edit to include all changes to the working directory that were left over as part of the syncing working. The branch is now ready to push!