#!/usr/bin/env python
"""
Grab all of a user's projects from github.
 
Copyright (c) 2008  Dustin Sallings <dustin@spy.net>
"""
 
import os
import sys
import subprocess
 
import github
 
def check_for_old_format(path, url):
    p=subprocess.Popen(['git', '--git-dir=' + path, 'config',
        'remote.origin.fetch'], stdout=subprocess.PIPE)
    stdout, stderr=p.communicate()
    if stdout.strip() != '+refs/*:refs/*':
        print "Not properly configured for mirroring, repairing."
        subprocess.call(['git', '--git-dir=' + path, 'remote', 'rm', 'origin'])
        add_mirror(path, url)
 
def add_mirror(path, url):
    subprocess.call(['git', '--git-dir=' + path, 'remote', 'add', '--mirror',
            'origin', url])
 
def sync(path, url, repo_name):
    p=os.path.join(path, repo_name) + ".git"
    print "Syncing %s -> %s" % (repo_name, p)
    if not os.path.exists(p):
        subprocess.call(['git', 'clone', '--bare', url, p])
        add_mirror(p, url)
    check_for_old_format(p, url)
    subprocess.call(['git', '--git-dir=' + p, 'fetch', '-f'])
 
def sync_user_repo(path, user, repo):
    sync(path, "git://github.com/%s/%s" % (user.login, repo.name), repo.name)
 
def usage():
    sys.stderr.write("Usage:  %s username destination_url\n" % sys.argv[0])
    sys.stderr.write(
        """Ensures you've got the latest stuff for the given user.
 
Also, if the file $HOME/.github-private exists, it will be read for
additional projects.
 
Each line must be a simple project name (e.g. py-github), a tab character,
and a git URL.
"""
        )
 
if __name__ == '__main__':
    try:
        user, path = sys.argv[1:]
    except ValueError:
        usage()
        exit(1)
 
    privfile = os.path.join(os.getenv("HOME"), ".github-private")
    if os.path.exists(privfile):
        f=open(privfile)
        for line in f:
            name, url = line.strip().split("\t")
            sync(path, url, name)
 
    gh=github.GitHub()
    u = gh.user(user)
 
    for repo in u.repos.values():
        sync_user_repo(path, u, repo)