Re: [PATCH] fast-import: Allow filemodify to set the root

From

David Barr <david.barr@cordelta.com>

Date

Oct 7, 2010, 23:45 UTC

Message-ID

<201010081045.46642.david.barr@cordelta.com>

In-Reply-To

<AANLkTi=K0NsKB0uBpHs+mB=PubieX7jO7vFiqrs+dnqB@mail.gmail.com>

Hi,

> | For a command (like filter-branch --subdirectory-filter) that wants
> | to commit a lot of trees that already exist in the object db, writing
> | undeltified objects as loose files only to repack them later can
> | involve a significant amount[*] of overhead.

> [*] how significant?  Numbers are always nice. :)

> 
> > Ok, so maybe I do understand, is it basically 'git read-tree
> > 4b825dc642cb6eb9a060e54bf8d69288fbee4904' for fast-import?

> Perhaps mention that in the commit message as well then. Of course,
> the fast-import doc needs updating, and it needs test.

| is a synonym for the deleteall command and the fast-import equivalent of
| 
|         git read-tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904