Re: [PATCH 19/24] submodule: use submodule repos for object lookup

> On Fri, Nov 2, 2018 at 6:03 AM Derrick Stolee <stolee@gmail.com> wrote:
>> On 10/30/2018 6:08 PM, Stefan Beller wrote:
>>> This converts the 'show_submodule_header' function to use
>>> the repository API properly, such that the submodule objects
>>> are not added to the main object store.
>>>
>>> Signed-off-by: Stefan Beller <sbeller@google.com>
>> A couple tests are broken in 'pu' when run with GIT_TEST_COMMIT_GRAPH=1,
>> including t4041-diff-submodule-option.sh. The failure bisects to this patch.
>>
>> Here is a verbose output of the first failure in that script:;
>>
>>
>> expecting success:
>>           git diff-index -p --submodule=log HEAD >actual &&
>>           cat >expected <<-EOF &&
>>           Submodule sm1 $head2..$head3 (rewind):
>>             < Add foo3 ($added foo3)
>>             < Add foo2 ($added foo2)
>>           EOF
>>           test_cmp expected actual
>>
>> + git diff-index -p --submodule=log HEAD
>> + cat
>> + test_cmp expected actual
>> + diff -u expected actual
>> --- expected    2018-11-02 12:58:43.429262380 +0000
>> +++ actual      2018-11-02 12:58:43.429262380 +0000
>> @@ -1,3 +1,5 @@
>> -Submodule sm1 30b9670..dafb207 (rewind):
>> +Submodule sm1 30b9670...dafb207:
>>      < Add foo3 (hinzugefügt foo3)
>>      < Add foo2 (hinzugefügt foo2)
>> +  > Add foo1 (hinzugefügt foo1)
>> +  < Add foo1 (hinzugefügt foo1)
>> error: last command exited with $?=1
>> not ok 9 - modified submodule(backward)
>>
>> I've been looking into the patch below to see if there is an obvious
>> problem, but the best I can think is that open_submodule() creates an
>> alternate 'struct repository' and somehow the commit-graph feature is
>> interacting poorly with that struct.
>>
>> Stefan, do you know what's going on?
> Sure, see the last four patches of this series
> https://public-inbox.org/git/20181030220817.61691-1-sbeller@google.com/
> (to which you also reply to? Junio did not queue this one, yet).