cp --debug should show when sparse detection: SEEK_HOLE #5715
Description
with our:
$ truncate -s16M file.sparse_
$ ./target/debug/cp --debug --reflink=never file.sparse_ file.sparse_.cp
'file.sparse_' -> 'file.sparse_.cp'
copy offload: unknown, reflink: no, sparse detection: no
with GNU:
$ truncate -s16M file.sparse_
$ /usr/bin/cp --debug --reflink=never file.sparse_ file.sparse_.cp
'file.sparse_' -> 'file.sparse_.cp'
copy offload: unknown, reflink: no, sparse detection: SEEK_HOLE
Used https://github.com/coreutils/coreutils/blob/master/init.cfg#L555
and will unblock some tests like GNU/tests/cp/sparse-2
We have the definition but I don't think it is used anywhere:
Line 305 in be82200