Re: [PATCH 2/3] Teach git diff-tree --stdin to diff trees

[Junio C Hamano <gitster@pobox.com>]

Karl Hasselström <kha@treskal.com> writes:

> On 2008-08-08 14:22:45 -0700, Junio C Hamano wrote:
> ...
>> But the following two sentences are a bit confusing, especially it
>> is unclear what "This" refers to in the last sentence.
>>
>> > When diffing trees, the -m, -s, -v, --pretty, --abbrev-commit,
>> > --encoding, --no-commit-id, -c, --cc, and --always options are
>> > ignored, since they do not apply to trees. This is the same
>> > behavior you get when specifying two trees on the command line
>> > instead of with --stdin.
>>
>> Perhaps swap the sentences in the log message like this?
>>
>>   When feeding trees on the command line, you can give exactly two
>>   trees, not three nor one; --stdin now supports this "two tree"
>>   form on its input, in addition to accepting lines with one or more
>>   commits.
>>
>>   When diffing trees (either specified on the command line or from
>>   the standard input), the -m, -s, -v, --pretty, --abbrev-commit,
>>   --encoding, --no-commit-id, -c, --cc, and --always options are
>>   ignored, since they do not apply to trees.
>
> Will do. Thanks.

Thinking about it a bit more, -m, -c and --cc are not about commits at
all.  Your excuse not to support them is because these three are about
diffing more than two trees (and I'd say that is still a good rationale).