sync: Introduce git checkout levelsv2.42

If a repo manifest is updated so that project B is placed within a
project A, and if project A had content in new B's location in the old
checkout, then repo sync could break depending on checkout order, since
B can't be checked out before A.

This change introduces checkout levels which enforces right sequence of
checkouts while still allowing for parallel checkout. In an example
above, A will always be checked out first before B.

BUG=b:325119758
TEST=./run_tests, manual sync on ChromeOS repository

Change-Id: Ib3b5e4d2639ca56620a1e4c6bf76d7b1ab805250
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/410421
Tested-by: Josip Sokcevic <sokcevic@google.com>
Reviewed-by: Greg Edelston <gredelston@google.com>
Commit-Queue: Josip Sokcevic <sokcevic@google.com>
Reviewed-by: Gavin Mak <gavinmak@google.com>

0 files changed, 0 insertions, 0 deletions