From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Shawn O. Pearce" <spearce@spearce.org>
Subject: Re: does anything like cvs export exist in git?
Date: Thu, 14 Aug 2008 15:12:21 -0700
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To: Mark Struberg <struberg@yahoo.de>
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Mark Struberg <struberg@yahoo.de> wrote:
> Since maven-scm should run under various OS (including Windoof)
> the tar thingy will not work out.

OK.  Maven could also consider using JGit, since its pure Java
and thus just as portable as the JRE is.

> The second approach is close to my original attempt to simply
> clone + checkout + rm -rf .git, isn't?.

Yes, but relies on a few plumbing level tricks to avoid the time
consuming aspects of a clone.

> At least I now know that it's really unlikely that this
> functionality does exist yet.

Its not implemented for a reason; we suggest to users to use
git-archive when they need to export a tree outside of Git.
 
> --- Shawn O. Pearce <spearce@spearce.org> schrieb am Do, 14.8.2008:
> > Von: Shawn O. Pearce <spearce@spearce.org>
> > Betreff: Re: does anything like cvs export exist in git?
> > An: "Mark Struberg" <struberg@yahoo.de>
> > CC: git@vger.kernel.org
> > Datum: Donnerstag, 14. August 2008, 23:26
> > Mark Struberg <struberg@yahoo.de> wrote:
> > > I'm the initial author of the Apache
> > maven-scm-providers-git and
> > > I need to update our SCM-Matrix.
> > > 
> > > This is just for making sure I did not oversee
> > anything.
> > > 
> > > I didn't came across anything like 'cvs
> > export' and I do not
> > > think git really needs this, since it doesn't
> > pollute the working
> > > directories with lots of waste like CVS and SVN does.
> > > 
> > > But I just want to make sure to not build workarounds
> > in our
> > > scm-provider (checkout + afterwards blasting the
> > GIT_DIR) for things
> > > that do exist natively in git.
> > 
> > You can use:
> > 
> >   git archive --tar HEAD | (mkdir ../dest;cd ../dest;tar xf
> > -)
> > 
> > Or you can do something even more bizzare like:
> > 
> >   export GIT_INDEX_FILE=/tmp/$$.index;
> >   export GIT_WORK_TREE=../dest;
> >   export GIT_DIR=.git;
> >   git read-tree HEAD &&
> >   git checkout-index --force --all &&
> >   rm $GIT_INDEX_FILE

-- 
Shawn.