From: Bo Yang <struggleyb.nku@gmail.com>
Date: Tue, 23 Mar 2010 06:08:54 GMT
Subject: Re: GSoC draft proposal: Line-level history browser
Message-ID: <41f08ee11003222308r63e2edabu5f352a50eea6e0a7@mail.gmail.com>
In-Reply-To: <alpine.DEB.1.00.1003221924110.7596@pacific.mpi-cbg.de>

Hi,

>> Note that, the history may not always be a single thread of commits.
>> If there are more than one commit which produce the specified line
>> range, the thread of history will split.
>
> Do not forget the case where there are more than one source of a code
> move. Think "refactoring".

Yeah, I really ignore such a condition. Thanks a lot!
And any new added code can be moved/copied from multiple source. This
will really be a new problem for the fuzzy matching.

>> =====Work and technical issues=====
>> ==Command options==
>> This new feature should be used for exploring the history of changes
>> for certain line range of code in one file.
>>
>> git log [-m<num>] [-I] [-d depth] [--fuzzy]  -L file1@rev1:<start
>> pos>,<end pos>  file2@rev2:<start pos>,<end pos>
>
> I would like this not to be specified too much here. For example, we do
> not know yet, whether the matching will be fuzzy, or whether we find
> something cleverer than that.

Ok, I will focus on express what I will support instead of command line options.

>
>> =====Milestones and Timeline=====
>> In this summer, we will add support of line level history browser for
>> only one file. The multiple ranges support is currently not in this
>> project.
>>
>> The milestones of the project are:
>> 1. Simple modification change history.
>
> IMHO this should be split into
>
>        1a) have an initial version which does nothing else than parse
>            git-log options and a single additional -L, requiring exactly
>            one file to be specified
>
>        1b) implement the xdiff callback and identify the commits touching
>            the line range (this is not completely trivial due to merges)
>

I will make a more specified milestones and timeline, thanks!

Regards!
Bo