From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sat, 18 Jun 2005 00:15:22 GMT
Subject: Re: Handling merge conflicts a bit more gracefully..
Message-ID: <E1DjQza-0001wP-00@gondolin.me.apana.org.au>
In-Reply-To: <Pine.LNX.4.58.0506081629370.2286@ppc970.osdl.org>

Linus Torvalds <torvalds@osdl.org> wrote:
> 
>>  # Modified in both, but differently.
>> +     merge -p "$src1" "$orig" "$src2" > "$4"
>> 
>> Again, make sure "$4" is not a directory before redirecting into
>> it from merge, so that you can tell merge failures from it?
> 
> Hmm.. What's the cleanest way to check for redirection errors, but still
> be able to distinguish those cleanly from "merge" itself returning an
> error?

I don't know whether this is the cleanest, but this is one way:

redir=failed
{
	redir=ok
	merge -p "$src1" "$orig" "$src2"
} > "$4" || err=$?

if [ $redir = failed ]; then
	...
fi

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
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