Re: t7800-difftool.sh failure on pu

[David Aguilar <davvid@gmail.com>]

On Thu, Mar 29, 2012 at 2:26 PM, Junio C Hamano <gitster@pobox.com> wrote:
> Ramsay Jones <ramsay@ramsay1.demon.co.uk> writes:
>
>> Hi Tim,
>>
>> With the current pu branch, I have t7800.3 (difftool ignores bad --tool values)
>> failing on Linux (I haven't tried cygwin or mingw yet). The failure is caused
>> by the test for the value of the exit code; for me the exit code is 9 not 1.
>>
>> I have investigated, briefly, and found *two* alternatives for a fix. ;-)
>>
>> The first option is to (effectively) revert commit 0440ed72 ("difftool: replace
>> system call with Git::command_noisy", 22-03-2012), like so:
>>
>> -- >8 --
>> diff --git a/git-difftool.perl b/git-difftool.perl
>> index e1754ff..49613b1 100755
>> --- a/git-difftool.perl
>> +++ b/git-difftool.perl
>> @@ -237,5 +237,7 @@ if (defined($dirdiff)) {
>>
>>       $ENV{GIT_PAGER} = '';
>>       $ENV{GIT_EXTERNAL_DIFF} = 'git-difftool--helper';
>> -     git_cmd_try { Git::command_noisy(('diff', @ARGV)) } 'exit code %d';
>> +     my @command = ('git', 'diff', @ARGV);
>> +     my $rc = system(@command);
>> +     exit($rc | ($rc >> 8));
>>  }
>> -- 8< --
>
> I would prefer this, regardless of the issue.
>
> I actually recall asking Tim about the exit status when I reviewed this
> change.

I would also prefer this.

A question for the msysgit/cygwin folks:

would we need to go back to use "git.exe" as well?
-- 
David