Junio C Hamano <gitster@xxxxxxxxx> writes: > As batch_object_cb() makes a call to batch_object_write() with > obj_name set to NULL, I do not think this change is defensible, > though. This indeed seems to break t5313 when queued on top of 'master'; it tries to run "git cat-file --batch-all-objects --batch-check" and hits the exact codepath where a missing object is sent to the error codepath without obj_name set to anything. I guess we now have an existing test that you can mimic that exhibits "missing" error? I do not know offhand if this test already qualifies as the test coverage Phillip wanted to make sure exists. ..... >8 .......... >8 .......... >8 .......... >8 .......... >8 ..... expecting success of 5313.3 'pack/index object count mismatch': do_pack $object && munge $pack 8 "\377\0\0\0" && clear_base && # We enumerate the objects from the completely-fine # .idx, but notice later that the .pack is bogus # and fail to show any data. echo "$object missing" >expect && git cat-file --batch-all-objects --batch-check >actual && test_cmp expect actual && # ...and here fail to load the object (without segfaulting), # but fallback to a good copy if available. test_must_fail git cat-file blob $object && restore_base && git cat-file blob $object >actual && test_cmp file actual && # ...and make sure that index-pack --verify, which has its # own reading routines, does not segfault. test_must_fail git index-pack --verify $pack 4+0 records in 4+0 records out 4 bytes copied, 0.000119221 s, 33.6 kB/s error: packfile .git/objects/pack/pack-67be769e2843d598c78218852612520795998892.pack claims to have 4278190080 objects while index indicates 1 objects error: packfile .git/objects/pack/pack-67be769e2843d598c78218852612520795998892.pack claims to have 4278190080 objects while index indicates 1 objects --- expect 2023-03-03 23:11:37.504011940 +0000 +++ actual 2023-03-03 23:11:37.508012250 +0000 @@ -1 +1 @@ -fff0a2476aa5c8e60a3ef21cfc66e0cc670920be missing +(null) missing not ok 3 - pack/index object count mismatch