On Mon, Feb 28 2022, Tao Klerks via GitGitGadget wrote:

As noted in a recent proposed patch to t/t7519-status-fsmonitor.sh, a number
of test cases in t\t7063-status-untracked-cache.sh explicitly sleep a
second, in order to avoid the untracked cache content being invalidated by
an mtime race condition.

Even though it's only 9 seconds of sleeping that can be straightforwardly
replaced, it seems worth fixing if possible.

Replace sleep calls with backdating of filesystem changes, but first fix the
test-tool chmtime functionality to work for directories in Windows.

Thanks, it will be nice to have that test run a bit faster in wallclock
terms.

I do have a question to the list here: Do mingw.c changes need to be
upstreamed somewhere? I don't understand the exact relationship between this
file and the MinGW project.

No, it's 100% ours. We just put (somewhat inconsistently in some cases)
our own code that is only needed for "compat" with some "platforms" into
compat/*.

Well, somewhat/mostly, then "contrib/" is supposed to be third-party
imports, but some code in both is 100% ours, some is out-of-tree, some
is effectively perma-forked and has no "upstream" anymore etc.