Re: Score in diff-format

From: Michael J Gruber <git@drmicha.warpmail.net>
Date: Jan 28, 2015, 14:32 UTC
Message-ID: <54C8F306.1000001@drmicha.warpmail.net>
In-Reply-To: <20150128062309.GA29506@glandium.org>

Mike Hommey schrieb am 28.01.2015 um 07:23:

Show 24 quoted lines

> Hi,
> 
> diff-format.txt says this:
> 
>   An output line is formatted this way:
>   (snip)
> 
>   That is, from the left to the right:
> 
>   (snip)
>   . status, followed by optional "score" number.
> 
>   (snip)
>   Status letters C and R are always followed by a score (denoting the
>   percentage of similarity between the source and target of the move or
>   copy), and are the only ones to be so.
>
> As I read this last paragraph, the following is not supposed to happen:
> $ git diff-tree 926b1ec63ee045503f609e88ca445b94c06bd5d7 --abbrev -r -C -B
> 926b1ec63ee045503f609e88ca445b94c06bd5d7
> :100644 100644 81ac702... 7ab0cf4... M087       contrib/subtree/INSTALL
> 
> It however makes sense that it happens, and it looks like a case of the
> documentation being outdated or confusing. Or am I interpreting it wrong?

I'd say it depends on the definition of "so". The documentation is correct if you read "so" as "*always* followed by a score". I guess you read it as "followed by a score".

Percentages with M are not mentioned in diff-format, but they are a consequence of "-B" processing. Maybe we could mention that?

Michael