Junio C Hamano venit, vidit, dixit 23.02.2015 19:54:
> Michael J Gruber <g...@drmicha.warpmail.net> writes:
> 
>> sequencer calls "commit" with default options, which implies
>> "--cleanup=default" unless the user specified something else in their
>> config. This leads to cherry-picked commits getting a cleaned up commit
>> message, which is usually not an intended side-effect.
>>
>> Make the sequencer use "--cleanup=verbatim" so that it preserves commit
>> messages independent of the defaults and user config for "commit".
> 
> Hmm, wouldn't it introduce a grave regression for users who
> explicitly ask to clean crufty messages up (by setting their own
> commit.cleanup configuration) if you unconditionally force
> "--cleanup=verbatim" here?
> 

That's what I meant by possible side-effects below.

There are no side-effects which our tests would catch.

I don't know sequencer.c well enough to know whether run_git_commit()
would be run with a user-edited commit message at all. My (possibly
wrong) understanding is that it is called only when a cherry-pick
succeeds without any conflicts, so that it is called with a commit
message from a pre-existing commit, i.e. a message after cleanup which
is to be preserved as is.

In case of a conflict, resolution is left to be done by the user. But I
guess I'm overlooking --edit and --continue here.

But git cherry-pick without conflict should no re-cleanup the commit
message either, should it?

>> Reported-by: Christoph Anton Mitterer <cales...@scientia.net>
>> Signed-off-by: Michael J Gruber <g...@drmicha.warpmail.net>
>> ---
>>
>> Notes:
>>     All tests run fine with this changed behavior. I don't know
>>     whether this may have any side-effects on other (untested)
>>     uses of the sequencer.
>>
>>  sequencer.c              |  1 +
>>  t/t3511-cherry-pick-x.sh | 28 ++++++++++++++++++++++++++++
>>  2 files changed, 29 insertions(+)
>>
>> diff --git a/sequencer.c b/sequencer.c
>> index 77a1266..35fe9d9 100644
>> --- a/sequencer.c
>> +++ b/sequencer.c
>> @@ -377,6 +377,7 @@ static int run_git_commit(const char *defmsg, struct 
>> replay_opts *opts,
>>      argv_array_init(&array);
>>      argv_array_push(&array, "commit");
>>      argv_array_push(&array, "-n");
>> +    argv_array_push(&array, "--cleanup=verbatim");
> 
> 
> 
>>  
>>      if (opts->gpg_sign)
>>              argv_array_pushf(&array, "-S%s", opts->gpg_sign);
>> diff --git a/t/t3511-cherry-pick-x.sh b/t/t3511-cherry-pick-x.sh
>> index f977279..b7dff09 100755
>> --- a/t/t3511-cherry-pick-x.sh
>> +++ b/t/t3511-cherry-pick-x.sh
>> @@ -36,6 +36,20 @@ mesg_with_cherry_footer="$mesg_with_footer_sob
>>  (cherry picked from commit da39a3ee5e6b4b0d3255bfef95601890afd80709)
>>  Tested-by: C.U. Thor <cut...@example.com>"
>>  
>> +mesg_unclean="$mesg_one_line
>> +
>> +
>> +leading empty lines
>> +
>> +
>> +consecutive empty lines
>> +
>> +# hash tag comment
>> +
>> +trailing empty lines
>> +
>> +
>> +"
>>  
>>  test_expect_success setup '
>>      git config advice.detachedhead false &&
>> @@ -53,6 +67,10 @@ test_expect_success setup '
>>      test_commit "$mesg_with_footer_sob" foo b mesg-with-footer-sob &&
>>      git reset --hard initial &&
>>      test_commit "$mesg_with_cherry_footer" foo b mesg-with-cherry-footer &&
>> +    git reset --hard initial &&
>> +    test_config commit.cleanup verbatim &&
>> +    test_commit "$mesg_unclean" foo b mesg-unclean &&
>> +    test_unconfig commit.cleanup &&
>>      pristine_detach initial &&
>>      test_commit conflicting unrelated
>>  '
>> @@ -216,4 +234,14 @@ test_expect_success 'cherry-pick -x -s treats "(cherry 
>> picked from..." line as p
>>      test_cmp expect actual
>>  '
>>  
>> +test_expect_success 'cherry-pick preserves commit message' '
>> +    pristine_detach initial &&
>> +    printf "$mesg_unclean" >expect &&
>> +    git log -1 --pretty=format:%B mesg-unclean >actual &&
>> +    test_cmp expect actual &&
>> +    git cherry-pick mesg-unclean &&
>> +    git log -1 --pretty=format:%B >actual &&
>> +    test_cmp expect actual
>> +'
>> +
>>  test_done

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