From: Johannes Sixt <j.sixt@viscovery.net>
Date: Mon, 14 Sep 2009 06:44:37 GMT
Subject: Re: rename tracking and file-name swapping
Message-ID: <4AADE655.60503@viscovery.net>
In-Reply-To: <1248088D-85CB-4335-AD8A-07DB5BAD1AAA@users.sf.net>

Yuri D'Elia schrieb:
> On 13 Sep 2009, at 20:14, Junio C Hamano wrote:
>> By default, if the pathname that was present in the old version still
>> appears in the new version, that path is not considered as a candiate
>> for rename detection.  Only "X used to be there but is gone" and "Y did
>> not exist but appeared" are paired up and checked if they are similar.
>>
>> Give the command -B option, too, to break the filepair that does not
>> disappear.
> 
> That does the trick. I'm curious, is there any other use for -B besides
> rename handling?

Yes: It can make patches easier to read (just like -M and -C do) if a file
was completely rewritten. For example, look at b9dfe51c with and without
-B, and also note the "dissimilarity index" in the diff header.

-- Hannes