vagrant.py 文件源码

def fix_anomalies(self):
        to_prune = []

        # machine_index = MachineIndex()
        for uuid, exports in six.iteritems(self.exports):
            # machine = machine_index.get_by_uuid(uuid)
            # machine cannot be found in the index
            # if not machine:
            #    to_prune.append(uuid)
            #    continue

            # one of the path does not exists anymore
            if [path for path in exports if not os.path.exists(path)]:
                to_prune.append(uuid)
                continue

        # remove all exports that have issues
        for uuid in to_prune:
            logger.info('pruning NFS entry for %s' % uuid)

            # taken from vagrant/plugins/hosts/linux/cap/nfs.rb
            extended_re_flag = '-r'
            sed_expr = '\\\x01^# VAGRANT-BEGIN:( {user})? {id}\x01,' \
                       '\\\x01^# VAGRANT-END:( {user})? {id}\x01 d'.format(
                           id=uuid,
                           user=os.getuid()
                       )
            if platform.system() == 'Darwin':
                extended_re_flag = '-E'
                sed_expr = '/^# VAGRANT-BEGIN:( {user})? {id}/,' \
                           '/^# VAGRANT-END:( {user})? {id}/ d'.format(
                               id=uuid,
                               user=os.getuid()
                           )

            cmd = [
                'sed',
                extended_re_flag,
                '-e',
                sed_expr,
                '-ibak',
                self.export_file
            ]

            # if we do not have write access, use sudo
            if not os.access(self.export_file, os.W_OK):
                cmd = [
                    'sudo',
                    '-p'
                    'Fixing invalid NFS exports. Administrators privileges '
                    'are required\n[sudo] password for %u',
                    '--'
                ] + cmd

            if call(cmd) != 0:
                raise RuntimeError('could not prune invalid nfs exports '
                                   '"%s" from /etc/exports' % uuid)