#!/usr/bin/env python

import py
import sys, os

def usage():
    arg0 = sys.argv[0]
    print """%s [[user@]remote-host:/repo/location localrepo [identity keyfile]]"""\
        % (arg0,)

def create_repo(localrepo):
    os.makedirs("%s" % localrepo)
    return py.process.cmdexec('/usr/bin/svnadmin create %s' % localrepo)

def start_hotsync(remote, localrepo, keyfile):
    remote_host, path = remote.split(':', 1)
    print 'starting: screen -S %s -d -m python /admin/bin/svn-sync-repo.py %s %s %s' %\
        (remote_host, remote, localrepo, keyfile)
    return py.process.cmdexec('screen -S %s -d -m python /admin/bin/svn-sync-repo.py %s %s %s' %\
        (remote_host, remote, localrepo, keyfile))

def main(args):
    if len(args) > 0:
        # run once interactive
        remote = args[0]
        localrepo = py.path.local(args[1])
        if not localrepo.check(dir=1):
            create_repo(localrepo)
        if len(args) == 3:
            keyfile = py.path.local(args[2])
        else:
            keyfile = ""
        start_hotsync(remote, localrepo, keyfile)
    else:
        # load from config file
        # user@host:/path/to/repo /path/to/localrepo [/path/to/keyfile]
        configfile = open("/etc/svnhotsync/svnhotsync.conf")
        for line in configfile:
            if line[0] != '#':
                sargs = line.split()
                if len(sargs) < 2 or len(sargs) > 3:
                    raise SystemExit("bad arguments in config file: %s" %(line,))
                remote = sargs[0]
                localrepo = py.path.local(sargs[1])
                if not localrepo.check(dir=1):
                    create_repo(localrepo)
                if len(sargs) == 3:
                    keyfile = py.path.local(sargs[2])
                else:
                    keyfile = ""
                start_hotsync(remote, localrepo, keyfile)
        configfile.close()

if __name__ == '__main__':
    if len(sys.argv) == 2 or len(sys.argv) > 4:
        usage()
        raise SystemExit(1)

    main(sys.argv[1:])