Re: [HACKERS] use of pager on Windows psql - Mailing list pgsql-patches

From Andrew Dunstan
Subject Re: [HACKERS] use of pager on Windows psql
Date
Msg-id 482FD26D.5030603@dunslane.net
Whole thread Raw
In response to Re: [HACKERS] use of pager on Windows psql  (Bruce Momjian <bruce@momjian.us>)
Responses Re: [HACKERS] use of pager on Windows psql
List pgsql-patches

Bruce Momjian wrote:
> Andrew Dunstan wrote:
>
>>> Not sure why ware are not.  Should we enabled that code on Win32 and see
>>> how it works?  Can you test it? Was it some MinGW limitation?  I do see
>>> isatty() being used on lots of platforms.
>>>
>>> This is kind of odd.  Ah, I bet it came from libpq's PQprint(), which I
>>> think we had working on Win32 long before we had psql working and
>>> perhaps I copied it from there.  I don't see the Win32 checks around
>>> isatty() anywhere else.
>>>
>>>
>>>
>>>> In fact, it looks to me like it would be much more sensible to #include
>>>> "settings.h" and then simply test pset.notty for all platforms.
>>>>
>>>>
>>> Yes, we could do that but does the isatty() value ever change while psql
>>> is running?  When you do '\g filename' does stdout then have isatty as
>>> false?
>>>
>>>
>> Good point. I think the best thing would just be to remove the #ifndef
>> WIN32 / #endif lines
>>
>
> OK, patch applied to remove the Win32 test in both places.
>
>
>

This broke the buildfarm and finally explains the following kluge which
has been puzzling me for four years:

        /*
         * for some reason MinGW (and MSVC) outputs an extra newline, so
this
         * suppresses it
         */
#ifndef WIN32
        fputc('\n', fout);
#endif

I have removed the kluge (and yes, I tested it).

cheers

andrew


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