git clone https://github.com/jmou/zit.git
git clone git@github.com:jmou/zit.git

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(top)/checkout-index

#!/usr/bin/python

import os
import subprocess

import index

entries = index.read_index()
# entry.c:checkout_entry
for filename, mode, sha1 in entries:
    assert not filename.startswith('/') # basic safety checks
    assert '..' not in filename
    subprocess.check_call(['mkdir', '-p', './' + os.path.dirname(filename)])
    # TODO git 1.0 doesn't seem to unlink deleted files
    subprocess.check_call(['cat-file', 'blob', sha1.encode('hex')], stdout=open(filename, 'w'))
    if mode == 0100755: # for executable files
        os.chmod(filename, 0755)
    elif mode == 0120000: # for symlinks
        target = open(filename).read()
        if os.path.exists(filename):
            os.unlink(filename)
        os.symlink(target, filename)