"Johannes Schindelin via GitGitGadget" <gitgitgadget@xxxxxxxxx>
writes:
> From: Johannes Schindelin <johannes.schindelin@xxxxxx>
>
> On FreeBSD, this mode is not supported. But since 3a251bac0d1a (trace2:
> only include "fsync" events if we git_fsync(), 2022-07-18) t5351 will
> fail if this mode is unsupported.
>
> Let's address this in the minimal fashion, by detecting that that mode
> is unsupported and expecting a different count of hardware flushes in
> that case.
>
> This fixes the CI/PR builds on FreeBSD again.
>
> Note: A better way would be to test only what is relevant in t5351.6
> "unpack big object in stream (core.fsyncmethod=batch)" again instead of
> blindly comparing the output against some exact text. But that would
> pretty much revert the idea of above-mentioned commit, and that commit
> was _just_ accepted into Git's main branch so one must assume that it
> was intentional.
>
> Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
> ---
> bulk-checkin.c | 2 ++
> t/t5351-unpack-large-objects.sh | 10 ++++++++--
> 2 files changed, 10 insertions(+), 2 deletions(-)
I am inclined to take this as-is for now.
But it inherits from 3a251bac0d1a the general "we should be able to
count the value" expectation, which may not be the best approach to
run this test; asking Acks from those originally involved in this
area and possibly ideas to test this in a more robust way.
Thanks.
> diff --git a/bulk-checkin.c b/bulk-checkin.c
> index 98ec8938424..855b68ec23b 100644
> --- a/bulk-checkin.c
> +++ b/bulk-checkin.c
> @@ -340,6 +340,8 @@ void fsync_loose_object_bulk_checkin(int fd, const char *filename)
> */
> if (!bulk_fsync_objdir ||
> git_fsync(fd, FSYNC_WRITEOUT_ONLY) < 0) {
> + if (errno == ENOSYS)
> + warning(_("core.fsyncMethod = batch is unsupported on this platform"));
> fsync_or_die(fd, filename);
> }
> }
> diff --git a/t/t5351-unpack-large-objects.sh b/t/t5351-unpack-large-objects.sh
> index f785cb06173..dd7ebc40072 100755
> --- a/t/t5351-unpack-large-objects.sh
> +++ b/t/t5351-unpack-large-objects.sh
> @@ -70,9 +70,15 @@ test_expect_success 'unpack big object in stream (core.fsyncmethod=batch)' '
> GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \
> GIT_TEST_FSYNC=true \
> git -C dest.git $BATCH_CONFIGURATION unpack-objects <pack-$PACK.pack &&
> - check_fsync_events trace2.txt <<-\EOF &&
> + if grep "core.fsyncMethod = batch is unsupported" trace2.txt
> + then
> + flush_count=7
> + else
> + flush_count=1
> + fi &&
> + check_fsync_events trace2.txt <<-EOF &&
> "key":"fsync/writeout-only","value":"6"
> - "key":"fsync/hardware-flush","value":"1"
> + "key":"fsync/hardware-flush","value":"$flush_count"
> EOF
>
> test_dir_is_empty dest.git/objects/pack &&
