[cipd] Detect Mac ARM running under Rosetta
If a user has git for x64, `git cl` results in downloading x64 cipd packages. Other operations, such as gclient or git-cl will result in downloading arm64. This flip-flopping between architectures causes unexpected behavior: (1) slows down commands since packages are wiped and new ones are downloaded. (2) long running processes, such as goma may crash. This change adds additional check for all macs running on x86 to check if is running under Rosetta and sets ARCH=arm64 if true. R=bryner@google.com, masonf@chromium.org Bug: 1311733 Change-Id: I65b127467d5c47d5bf07952d2ecdcb93630c7c87 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/3573068Reviewed-by:Brian Ryner <bryner@google.com> Reviewed-by:
Mason Freed <masonf@chromium.org> Commit-Queue: Josip Sokcevic <sokcevic@google.com>
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