From: bill lam <cbill.lam@gmail.com>
Date: Wed, 02 May 2012 14:25:36 GMT
Subject: git pull and GIT_DIR
Message-ID: <20120502142536.GA2609@debian.b2j>

It appeared that

a)
cd /path/to && git pull git/https://....

will fetch and checkout latest changes to working tree.  This is as
expected.  On the contrary

b)
GIT_DIR=/path/to/.git git pull git/https://....

will only update git repo, but leaving working tree untouched.
Subsequent git status and git diff will indicate unstaged changes, 
apparently a commit that will revert the updated git repo. I have to
do 'git reset --hard' to really update the working three.

I'm not sure if this is an intended behavior or I missed something. 

-- 
regards,
====================================================
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