Re: segfault for git log --graph --no-walk --grep a

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Jeff King <peff@xxxxxxxx> writes:

> On Fri, Feb 08, 2013 at 04:22:15PM -0800, Junio C Hamano wrote:
>
>> Junio C Hamano <gitster@xxxxxxxxx> writes:
>> 
>> > Thomas Haller <thom311@xxxxxxxxx> writes:
>> >
>> >> it happens in file revision.c:2306 because "commit->buffer" is zero:
>> >>
>> >>                 retval = grep_buffer(&opt->grep_filter,
>> >>                                      commit->buffer, strlen(commit->buffer));
>> >
>> > I think this has been fixed at be5c9fb9049e (logmsg_reencode: lazily
>> > load missing commit buffers, 2013-01-26); I haven't merged it to any
>> > of the maintenance releases, but the tip of 'master' should have it
>> > already.
>> 
>> Ah, no, this shares the same roots as the breakage the said commit
>> fixed, and the solution should use the same idea, but not fixed.
>
> Yeah, I think this needs separate treatment. However, this is a perfect
> example of the "case-by-case" I mention in the final two paragraphs
> there.
>
> What's the right encoding to be grepping in? The original, what we will
> output in, or even something else? IOW, I wonder if this should be using
> logmsg_reencode in the first place (the obvious reason not to want to do
> so is speed, but logmsg_reencode is written to only have an impact in
> the case that we do indeed need to reencode).

Yeah, that actually is a good point.  We should be using logmsg_reencode
so that we look for strings in the user's encoding.

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