From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jonathan Nieder <jrnieder@gmail.com>
Subject: Re: Feature request: Allow extracting revisions into directories
Date: Sat, 9 Feb 2013 20:06:21 -0800
Message-ID: <20130210040621.GA8584@elie.Belkin>
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Cc: Junio C Hamano <gitster@pobox.com>, git@vger.kernel.org
To: Robert Clausecker <fuzxxl@gmail.com>
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Hi Robert,

Robert Clausecker wrote:

> There are two things git archive is missing that are needed in my use
> case:
>
> First, git archive in combination with tar won't remove unneeded files.
> You have to run rm -rf before manually which brings me to the next
> point; git archive can't really make incremental updates.

My advice is to keep a separate index file for your exported files.
Like this:

	GIT_DIR=$(readlink -f $(git rev-parse --git-dir))
	GIT_INDEX_FILE=$GIT_DIR/index-for-deployment
	export GIT_DIR GIT_INDEX_FILE

	cd $dest
	git read-tree -m -u <tree>

Hope that helps,
Jonathan