git clone --bare /path/to/myproject sharedfoldername
(1)
git remote add origin /Volumes/Seagate-1/gitbackup/Autofill/
You also need to tell git you have a master branch, and where to pull from. Add these to your .gitconfig:
[branch "master"] remote = origin merge = refs/heads/master
(2)
rm -Rf myproject git clone /path/to/sharedfoldername myproject