[dak/master] convert to using the debversion C type
Signed-off-by: Mark Hymers <mhy@debian.org>
---
dak/dakdb/update19.py | 107 +++++++++++++++++++++++++++++++++++++++++++++++++
dak/update_db.py | 2 +-
daklib/dbconn.py | 18 ++++++++
3 files changed, 126 insertions(+), 1 deletions(-)
create mode 100755 dak/dakdb/update19.py
diff --git a/dak/dakdb/update19.py b/dak/dakdb/update19.py
new file mode 100755
index 0000000..49a4dbc
--- /dev/null
+++ b/dak/dakdb/update19.py
@@ -0,0 +1,107 @@
+#!/usr/bin/env python
+# coding=utf8
+
+"""
+Move to using the C version of debversion
+
+@contact: Debian FTP Master <ftpmaster@debian.org>
+@copyright: 2009 Mark Hymers <mhy@debian.org>
+@license: GNU General Public License version 2 or later
+"""
+
+# 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 2 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+################################################################################
+
+
+################################################################################
+
+import psycopg2
+import time
+import os
+import datetime
+import traceback
+
+from daklib.dak_exceptions import DBUpdateError
+from daklib.config import Config
+
+################################################################################
+
+def do_update(self):
+ print "Converting database to use new C based debversion type"
+
+ try:
+ c = self.db.cursor()
+
+ print "Temporarily converting columns to TEXT"
+ c.execute("ALTER TABLE binaries ALTER COLUMN version TYPE TEXT")
+ c.execute("ALTER TABLE source ALTER COLUMN version TYPE TEXT")
+ c.execute("ALTER TABLE upload_blocks ALTER COLUMN version TYPE TEXT")
+ c.execute("ALTER TABLE pending_content_associations ALTER COLUMN version TYPE TEXT")
+
+ print "Dropping old debversion type"
+ c.execute("DROP OPERATOR >(debversion, debversion)")
+ c.execute("DROP OPERATOR <(debversion, debversion)")
+ c.execute("DROP OPERATOR <=(debversion, debversion)")
+ c.execute("DROP OPERATOR >=(debversion, debversion)")
+ c.execute("DROP OPERATOR =(debversion, debversion)")
+ c.execute("DROP OPERATOR <>(debversion, debversion)")
+ c.execute("DROP FUNCTION debversion_eq(debversion,debversion)")
+ c.execute("DROP FUNCTION debversion_ge(debversion,debversion)")
+ c.execute("DROP FUNCTION debversion_gt(debversion,debversion)")
+ c.execute("DROP FUNCTION debversion_le(debversion,debversion)")
+ c.execute("DROP FUNCTION debversion_lt(debversion,debversion)")
+ c.execute("DROP FUNCTION debversion_ne(debversion,debversion)")
+ c.execute("DROP FUNCTION debversion_compare(debversion,debversion)")
+ c.execute("DROP FUNCTION debversion_revision(debversion)")
+ c.execute("DROP FUNCTION debversion_version(debversion)")
+ c.execute("DROP FUNCTION debversion_epoch(debversion)")
+ c.execute("DROP FUNCTION debversion_split(debversion)")
+ c.execute("DROP TYPE debversion")
+
+ # URGH - kill me now
+ print "Importing new debversion type"
+ f = open('/usr/share/postgresql/8.4/contrib/debversion.sql', 'r')
+ cmds = []
+ curcmd = ''
+ for j in f.readlines():
+ j = j.replace('\t', '').replace('\n', '').split('--')[0]
+ if not j.startswith('--'):
+ jj = j.split(';')
+ curcmd += " " + jj[0]
+ if len(jj) > 1:
+ for jjj in jj[1:]:
+ if jjj.strip() == '':
+ cmds.append(curcmd)
+ curcmd = ''
+ else:
+ curcmd += " " + jjj
+
+ for cm in cmds:
+ c.execute(cm)
+
+ print "Converting columns to new debversion type"
+ c.execute("ALTER TABLE binaries ALTER COLUMN version TYPE debversion")
+ c.execute("ALTER TABLE source ALTER COLUMN version TYPE debversion")
+ c.execute("ALTER TABLE upload_blocks ALTER COLUMN version TYPE debversion")
+ c.execute("ALTER TABLE pending_content_associations ALTER COLUMN version TYPE debversion")
+
+ print "Committing"
+ c.execute("UPDATE config SET value = '19' WHERE name = 'db_revision'")
+ self.db.commit()
+
+ except psycopg2.InternalError, msg:
+ self.db.rollback()
+ raise DBUpdateError, "Unable to apply debversion update 19, rollback issued. Error message : %s" % (str(msg))
diff --git a/dak/update_db.py b/dak/update_db.py
index 701fdfd..e9dfa9a 100755
--- a/dak/update_db.py
+++ b/dak/update_db.py
@@ -44,7 +44,7 @@ from daklib.dak_exceptions import DBUpdateError
################################################################################
Cnf = None
-required_database_schema = 18
+required_database_schema = 19
################################################################################
diff --git a/daklib/dbconn.py b/daklib/dbconn.py
index 72b072c..45e000d 100755
--- a/daklib/dbconn.py
+++ b/daklib/dbconn.py
@@ -40,8 +40,10 @@ import traceback
from inspect import getargspec
+import sqlalchemy
from sqlalchemy import create_engine, Table, MetaData
from sqlalchemy.orm import sessionmaker, mapper, relation
+from sqlalchemy import types as sqltypes
# Don't remove this, we re-export the exceptions to scripts which import us
from sqlalchemy.exc import *
@@ -55,6 +57,22 @@ from textutils import fix_maintainer
################################################################################
+# Patch in support for the debversion field type so that it works during
+# reflection
+
+class DebVersion(sqltypes.Text):
+ def get_col_spec(self):
+ return "DEBVERSION"
+
+sa_major_version = sqlalchemy.__version__[0:3]
+if sa_major_version == "0.5":
+ from sqlalchemy.databases import postgres
+ postgres.ischema_names['debversion'] = DebVersion
+else:
+ raise Exception("dak isn't ported to SQLA versions != 0.5 yet. See daklib/dbconn.py")
+
+################################################################################
+
__all__ = ['IntegrityError', 'SQLAlchemyError']
################################################################################
--
1.6.3.3
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