tree 5000ea657357c0c50fa4176aa48775e7d41d6a86
parent 41c2597509e3e2228688668fbfb2d8bcfb5891b1
author kimhappy <hwanhee.kim@laplacian.cc> 1787767450 +0900
committer gerrit-scoped@luci-project-accounts.iam.gserviceaccount.com <gerrit-scoped@luci-project-accounts.iam.gserviceaccount.com> 1787872963 -0700

sync: check out submodules at the parent's new revision

Interleaved sync processes projects in hierarchical levels, so a
submodule is only handled after the project holding its gitlink has been
fetched and checked out. Its revision, however, is still the one read
before that parent was fetched, so the submodule is synced to the
revision of the previous sync and only catches up on the next one.

Read the gitlinks again right before a level is dispatched. The parent
is done by then, so its submodules are fetched and checked out at the
revision the parent now points at. Sibling submodules are spread over
several levels, so the gitlinks read for one level are carried over to
the next ones and every project is only read once per pass.

Bug: 550074864
Change-Id: I30395b8a16a9154f60972e1f408a066af64ba77c
Signed-off-by: kimhappy <hwanhee.kim@laplacian.cc>
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/621662
Reviewed-by: Gavin Mak <gavinmak@google.com>
Reviewed-by: Brian Gan <brgan@google.com>