1460587 - [wpt-sync] Sync PR 10948 - Avoid using diff to figure out files that changed in a revision.

Status: NEW

(Testing :: web-platform-tests, enhancement, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 10948 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/w3c/web-platform-tests/pull/10948
Details from upstream follow.

James Graham <[e-mail]> wrote:
>  Avoid using diff to figure out files that changed in a revision.
>  
>  In a history with a complex merge structure, trying to figure out
>  which files changed using git diff appears to be fraught with peril,
>  since it tends to show changes on both sides of the merge. With
>  e.g. PR 7579 where the branch was long-lived this ends up considering
>  most of the repository as changed and causes the command to fail. A
>  simple approach that seems to be reliable is to use git log
>  --name-only, with --first-parent to handle merges in a predicatable
>  way.

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Pushed to try https://treeherder.mozilla.org/#/jobs?repo=try&revision=cb13670f0e9b5f40555caa3b213e7cd6be06e04f