# -*- coding: utf-8 -*-

"""

    rhodecode.lib.dbmigrate.__init__

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Database migration modules

    :created_on: Dec 11, 2010

    :author: marcink

    :copyright: (C) 2009-2011 Marcin Kuzminski <marcin@python-works.com>

    :license: GPLv3, see COPYING for more details.

"""

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import logging

from sqlalchemy import engine_from_config

from rhodecode.lib.utils import BasePasterCommand, Command, add_cache

from rhodecode.lib.db_manage import DbManage

log = logging.getLogger(__name__)

class UpgradeDb(BasePasterCommand):

    """Command used for paster to upgrade our database to newer version

    """

    max_args = 1

    min_args = 1

    usage = "CONFIG_FILE"

    summary = "Upgrades current db to newer version given configuration file"

    group_name = "RhodeCode"

    parser = Command.standard_parser(verbose=True)

    def command(self):

        from pylons import config

        add_cache(config)

        db_uri = config['sqlalchemy.db1.url']

        dbmanage = DbManage(log_sql=True, dbconf=db_uri,

                            root=config['here'], tests=False)

        dbmanage.upgrade()

    def update_parser(self):

        self.parser.add_option('--sql',

                      action='store_true',

                      dest='just_sql',

                      help="Prints upgrade sql for further investigation",

                      default=False)

"""

   This module extends SQLAlchemy and provides additional DDL [#]_

   support.

   .. [#] SQL Data Definition Language

"""

import re

import warnings

import sqlalchemy

from sqlalchemy import __version__ as _sa_version

warnings.simplefilter('always', DeprecationWarning)

SQLA_06 = _sa_version >= (0, 6)

del re

del _sa_version

from rhodecode.lib.dbmigrate.migrate.changeset.schema import *

from rhodecode.lib.dbmigrate.migrate.changeset.constraint import *

sqlalchemy.schema.Table.__bases__ += (ChangesetTable, )

sqlalchemy.schema.Column.__bases__ += (ChangesetColumn, )

sqlalchemy.schema.Index.__bases__ += (ChangesetIndex, )

sqlalchemy.schema.DefaultClause.__bases__ += (ChangesetDefaultClause, )

"""

   Provide exception classes for :mod:`migrate`

"""

class Error(Exception):

    """Error base class."""

class ApiError(Error):

    """Base class for API errors."""

class KnownError(ApiError):

    """A known error condition."""

class UsageError(ApiError):

    """A known error condition where help should be displayed."""

class ControlledSchemaError(Error):

    """Base class for controlled schema errors."""

class InvalidVersionError(ControlledSchemaError):

    """Invalid version number."""

class DatabaseNotControlledError(ControlledSchemaError):

    """Database should be under version control, but it's not."""

class DatabaseAlreadyControlledError(ControlledSchemaError):

    """Database shouldn't be under version control, but it is"""

class WrongRepositoryError(ControlledSchemaError):

    """This database is under version control by another repository."""

class NoSuchTableError(ControlledSchemaError):

    """The table does not exist."""

class PathError(Error):

    """Base class for path errors."""

class PathNotFoundError(PathError):

    """A path with no file was required; found a file."""

class PathFoundError(PathError):

    """A path with a file was required; found no file."""

class RepositoryError(Error):

    """Base class for repository errors."""

class InvalidRepositoryError(RepositoryError):

    """Invalid repository error."""

class ScriptError(Error):

    """Base class for script errors."""

class InvalidScriptError(ScriptError):

    """Invalid script error."""

class NotSupportedError(Error):

    """Not supported error"""

class InvalidConstraintError(Error):

    """Invalid constraint error"""

class MigrateDeprecationWarning(DeprecationWarning):

    """Warning for deprecated features in Migrate"""