From mboxrd@z Thu Jan  1 00:00:00 1970
From: Johannes Sixt <j.sixt@viscovery.net>
Subject: Re: How to put tree into index
Date: Wed, 20 Nov 2013 13:41:10 +0100
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To: Alexander GQ Gerasiov <gq@cs.msu.su>, git@vger.kernel.org
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Am 11/20/2013 12:47, schrieb Alexander GQ Gerasiov:
> 1. I have repository with tree like this:
> 
> dir1/
> 	file1
> 	file2
> 	file3
> 
> dir2/
> 	subdir1/
> 		some files
> 
> 
> 2. Current branch is B.
> 
> 3. I want to get dir1 from branch A, and save it's content on current
> branch (B) as dir2/subdir1

> So my question is
> How to put into index tree-object with known sha1 and given name?

git rm -r --cached dir2/subdir1 &&
git read-tree --prefix=dir2/subdir1/ A:dir1

Note the trailing slash.

> PS I was able to do what I need when copied files, not tree-itself.
> Just add -r to git ls-tree, and put into index blobs/files, not tree.
> But I'm interested: is it possible to put tree-object into index?

No, because the index does not store trees, only blobs.

-- Hannes