add central alembic config

4 files changed, 40 insertions, 22 deletions

diff --git a/src/mailman/database/alembic/__init__.py b/src/mailman/database/alembic/__init__.py
index e69de29bb..73f30832e 100644
--- a/src/mailman/database/alembic/__init__.py
+++ b/src/mailman/database/alembic/__init__.py
@@ -0,0 +1,32 @@
+# Copyright (C) 2014 by the Free Software Foundation, Inc.
+#
+# This file is part of GNU Mailman.
+#
+# GNU Mailman 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.
+#
+# GNU Mailman 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
+# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
+
+"Alembic config init."
+
+from __future__ import absolute_import, print_function, unicode_literals
+
+__metaclass__ = type
+__all__ = [
+    'alembic_cfg'
+]
+
+
+from alembic.config import Config
+from mailman.utilities.modules import expand_path
+
+
+alembic_cfg=Config(expand_path("python:mailman.config.alembic"))
diff --git a/src/mailman/database/alembic/env.py b/src/mailman/database/alembic/env.py
index 5e4f6bfdb..d1caec58d 100644
--- a/src/mailman/database/alembic/env.py
+++ b/src/mailman/database/alembic/env.py
@@ -27,17 +27,20 @@ __all__ = [
 
 
 from alembic import context
-from alembic.config import Config
 from contextlib import closing
+from logging.config import fileConfig
 from sqlalchemy import create_engine
 
 from mailman.core import initialize
 from mailman.config import config
+from mailman.database.alembic import alembic_cfg
 from mailman.database.model import Model
 from mailman.utilities.modules import expand_path
 from mailman.utilities.string import expand
 
 
+fileConfig(alembic_cfg.config_file_name)
+
 
 def run_migrations_offline():
     """Run migrations in 'offline' mode.
@@ -49,11 +52,6 @@ def run_migrations_offline():
     Calls to context.execute() here emit the given string to the script
     output.
     """
-    if not config.initialized:
-        initialize.initialize_1(context.config.config_file_name)
-    alembic_cfg= Config()
-    alembic_cfg.set_main_option(
-        "script_location", config.alembic['script_location'])
     url = expand(config.database.url, config.paths)
     context.configure(url=url, target_metadata=Model.metadata)
     with context.begin_transaction():
@@ -66,13 +64,6 @@ def run_migrations_online():
     In this scenario we need to create an Engine and associate a
     connection with the context.
     """
-
-    if not config.initialized:
-        initialize.initialize_1(context.config.config_file_name)
-    alembic_cfg = Config()
-    alembic_cfg.set_main_option(
-        'script_location', expand_path(config.database['alembic_scripts']))
-    alembic_cfg.set_section_option('logger_alembic' ,'level' , 'ERROR')
     url = expand(config.database.url, config.paths)
     engine = create_engine(url)
 
diff --git a/src/mailman/database/base.py b/src/mailman/database/base.py
index 26b6ddbbb..dcaedade0 100644
--- a/src/mailman/database/base.py
+++ b/src/mailman/database/base.py
@@ -26,12 +26,12 @@ __all__ = [
 import logging
 
 from alembic import command
-from alembic.config import Config
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
 from zope.interface import implementer
 
 from mailman.config import config
+from mailman.database.alembic import alembic_cfg
 from mailman.interfaces.database import IDatabase
 from mailman.utilities.string import expand
 
@@ -97,9 +97,6 @@ class SABaseDatabase:
         # create_all() ceates the latest schema.  This patches the database
         # with the latest Alembic version to add an entry in the
         # alembic_version table.
-        alembic_cfg = Config()
-        alembic_cfg.set_main_option(
-            'script_location', config.database['alembic_scripts'])
         command.stamp(alembic_cfg, 'head')
 
 
diff --git a/src/mailman/database/factory.py b/src/mailman/database/factory.py
index 6111be8c5..469ed5d18 100644
--- a/src/mailman/database/factory.py
+++ b/src/mailman/database/factory.py
@@ -30,7 +30,6 @@ import os
 import types
 
 from alembic import command
-from alembic.config import Config as AlembicConfig
 from alembic.migration import MigrationContext
 from alembic.script import ScriptDirectory
 from flufl.lock import Lock
@@ -40,8 +39,9 @@ from zope.interface.verify import verifyObject
 
 from mailman.config import config
 from mailman.database.model import Model
+from mailman.database.alembic import alembic_cfg
 from mailman.interfaces.database import IDatabase, IDatabaseFactory
-from mailman.utilities.modules import call_name
+from mailman.utilities.modules import call_name, expand_path
 
 
 
@@ -70,9 +70,7 @@ class SchemaManager:
 
     def __init__(self, database):
         self.database = database
-        self.alembic_cfg = AlembicConfig()
-        self.alembic_cfg.set_main_option(
-            "script_location", config.alembic['script_location'])
+        self.alembic_cfg = alembic_cfg
         self.script = ScriptDirectory.from_config(self.alembic_cfg)
 
     def get_storm_schema_version(self):