Add a strict, NUL-aware parser for porcelain v2 records, including
ordinary changes, renames, conflicts, untracked paths, branch
divergence, and stash metadata. The reader is gated on Git 2.11, opts
into newer flags only when supported, and preserves arbitrary pathname
bytes.
Bug: 543851900
Bug: 553599402
Change-Id: Ibae3e1056fd9866f3cb6d490745d377cda1e8fef
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/632142
Tested-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Gavin Mak <gavinmak@google.com>
Reviewed-by: Brian Gan <brgan@google.com>
