# Re: Check for differents trees

1 messages from 2005-11-10 to 2005-11-10. Participants: Marco Costalba.
Thread: https://gitlist.dev/t/2422

## Marco Costalba, 2005-11-10 06:35

Subject: Re: Check for differents trees
Message-ID: <20051110063502.44633.qmail@web26302.mail.ukl.yahoo.com>
URL: https://gitlist.dev/e/20051110063502.44633.qmail%40web26302.mail.ukl.yahoo.com

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Junio C Hamano wrote:

>Marco Costalba <mcostalba@yahoo.it> writes:
>
>>   as you said, the speed is almost the same but your way is clearly better.
>
>
>How often do you do this --diff-filter=AD and why?
>
>If it is a common enough operation, we could add a specific hack
>to stop feeding the diff machinery with unwanted kind of changes
>when diff-filter is set and none of -B/-C/-M are used.  That
>_might_ speed things up for you.
>

Sorry for late answer byt I was off line a few days.

Thanks, It will be great.

I have impemented a tree viewer for qgit. Tree view is updated when user browses through
revisions. Loading the file names of a given tree, altough only for the open directories, is an
expensive operation. So I check for different files anytime the user select a new revision and
the tree viewer is open, I use this test to skip tree reloading if trees have the same files.

I have made some speed test with 
git-diff-tree -r --name-status --diff-filter=AD sha1 sha2



  Marco



		
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