Re: [PATCH v3 1/2] git-am: emit usage when called w/o arguments and w/o patch on stdin

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

Jay Soffian <jaysoffian@gmail.com> writes:

> On Wed, Jan 28, 2009 at 11:18 AM, Pieter de Bie <pdebie@ai.rug.nl> wrote:
>> FWIW, I sometimes like to run 'git am', paste in a patch and hit ctrl-d.
>>
>> I can probably retrain my finger to use 'git am -', but I'm not sure if that
>> works (after this patch)? At least it's not mentioned in the manpage.
>
> "git am -" doesn't work (before or after this patch), but "cat | git am" will.

Another approach we've taken in other places to avoid the "Huh?" that
triggered this thread is to do something like:

        if there is no argument
        then
		if reading from tty
	        then
	        	echo >&2 "Reading from terminal, waiting for input..."
		fi
                process stdin	
	else
        	for arg
                do
                	process $arg
		done
	fi

Unfortunately, this will invalidate your "check -t 0 and error out" patch,
but some people may find it easier to work with and more friendly.