#!/usr/bin/python

import os
import sys
import subprocess
import shutil

def clonePackage(base, pkg):
    if not os.path.isdir('%s.git' % pkg):
        if os.path.isdir(pkg):
            shutil.rmtree(pkg)
        # Use --no-follow-parent because we're going to handle that with
        # grafts.
        subprocess.check_call(['git', 'svn', 'clone', '--no-follow-parent',
                               '-Aauthors',
                               '-q',
                               '--no-metadata', '%s/packages/%s' % (base, pkg)],
                              stdout=subprocess.PIPE)
        
        # Then make the repository bare, because git-svn can't do this
        shutil.move('%s/.git' % pkg, '%s.git' % pkg)
        shutil.rmtree('%s' % pkg)
        subprocess.check_call(['git', 'config', 'core.bare', 'true'], cwd='%s.git' % pkg)

def cloneAllPackages(base):
    for pkg in open('package-list'):
        clonePackage(base, pkg.strip())

if __name__ == '__main__':
    try:
        base = sys.argv[1]
    except:
        base = 'svn://invirt.mit.edu/trunk'
    
    cloneAllPackages(base)