It seems to me that the irreducible note of the problem-space is
make these two files the same
Which is good, because that is also the hardest/cleverest part (the rsync
delta protocol). The need for the most flexibility is in determining the
list of files.
So we need to make sure the boundary between the deltas and the filesystem
meta-deta are clean. It seems to me that the deltas are under the control
of the file owner, while the metadata flows could go either way, and could
vary widely.
/r$
PS: When I say "we," I mean of course "you folks doing the work." :)
