Christian Couder <christian.cou...@gmail.com> writes:

> On Sat, Apr 5, 2014 at 12:42 AM, Junio C Hamano <gits...@pobox.com> wrote:
>> Junio C Hamano <gits...@pobox.com> writes:
>>
>>> Christian Couder <christian.cou...@gmail.com> writes:
>>> "The following features are planned but not yet implemented:
>>>         - add more tests related to commands
>>>         - add examples in documentation
>>>         - integration with "git commit""
>>
>> I was planning to merge the series to 'next', but perhaps we should
>> wait at least for the first two items (I do not think the third one
>> is necessary to block the series).
>
> I will send soon a new version of the series with more tests and fixes.
> It will also contains a patch that adds an empty line before the
> trailers in the output if there is not already one.

Ah, yes, that one was mentioned in the reviews, I remember.

> After that I plan to work on adding examples to the documentation.

OK, thanks.

> First accepting both ':' and '=' means one can see the "git
> interpret-trailers" as acting on trailers only. Not just on trailers
> from the intput message and option parameters from the command line.

Sorry, you lost me.  What does "acting on trailers only" really
mean?  Do you mean the command should/can be run without any command
line options, pick up the existing "Signed-off-by:" and friends in
its input and emit its output, somehow taking these existing ones as
its instruction regarding how to transform the input to its output?

> And second there is also a practical advantage, as the user can
> copy-paste trailers directly from other messages into the command line
> to pass them as arguments to "git interpret-trailers" without the need
> to replace the ':' with '='. Even if this command is not often used
> directly by users, it might simplify scripts using it.
>
> Third there is a technical advantage which is that the code that
> parses arguments from the command line can be the same as the code
> that parses trailers from the input message.

I do not see these two as valid arguments to make the command line
more complex to the end users---who now need to know that only this
command treats its command line in a funny way, accepting a colon in
place of an equal sign.

A different way to sell a colon, e.g.

    Consider the instruction sed takes on its command line.
    (e.g. "sed 's/frotz/nitfol/' <xyzzy").  In the most general
    form, you would always give it as the value of an '-e' option
    (e.g. "sed -e 's/frotz/nitfol' <xyzzy"), but you are allowed to
    be loose in limited occassions.  "Key:value" is like that, and
    in the most general form, it actually needs to be spelled as
    "-e 'Key:value'".

is possible, but I do not think it is a particularly good analogy,
because what you have as the alternative is "Key=value", and not
"-e 'Key:value'", or "--Key=value" (the last would probably be the 
most natural way to express this).



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