Re: [PATCH] gitk: refresh the index before running diff-files

[Andreas Schwab <schwab@linux-m68k.org>]

Junio C Hamano <gitster@pobox.com> writes:

> Jeff King <peff@peff.net> writes:
>
>> On Sat, Sep 29, 2012 at 12:11:58AM +0200, Andreas Schwab wrote:
>>
>>> Jeff King <peff@peff.net> writes:
>>> 
>>> > +proc refresh_index {} {
>>> > +    global need_index_refresh
>>> > +    if { $need_index_refresh } {
>>> > +	exec sh -c "git update-index --refresh >/dev/null 2>&1 || true"
>>> 
>>> I think the usual idiom for ignoring errors is to use catch around exec,
>>> avoiding the extra shell wrapper:
>>> 
>>>         catch { exec git update-index --refresh }
>>
>> Thanks. I don't speak tcl at all, but your version makes much more
>> sense.
>
> But isn't the redirection still needed?  Otherwise the "Needs
> update" messages will go to the terminal, no?

The exec command captures both stdout and stderr and returns it as its
value, and catch ignores it.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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