blob: 70b49ecd8efadc2c818239d37b4d6c5c48322a02 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import logging
import shutil
import sqlparse
from migrate.versioning.script import base
from migrate.versioning.template import Template
log = logging.getLogger(__name__)
class SqlScript(base.BaseScript):
"""A file containing plain SQL statements."""
@classmethod
def create(cls, path, **opts):
"""Create an empty migration script at specified path
:returns: :class:`SqlScript instance <migrate.versioning.script.sql.SqlScript>`"""
cls.require_notfound(path)
src = Template(opts.pop('templates_path', None)).get_sql_script(theme=opts.pop('templates_theme', None))
shutil.copy(src, path)
return cls(path)
# TODO: why is step parameter even here?
def run(self, engine, step=None):
"""Runs SQL script through raw dbapi execute call"""
text = self.source()
# Don't rely on SA's autocommit here
# (SA uses .startswith to check if a commit is needed. What if script
# starts with a comment?)
conn = engine.connect()
try:
trans = conn.begin()
try:
# NOTE(ihrachys): script may contain multiple statements, and
# not all drivers reliably handle multistatement queries or
# commands passed to .execute(), so split them and execute one
# by one
for statement in sqlparse.split(text):
if statement:
conn.execute(statement)
trans.commit()
except Exception as e:
log.error("SQL script %s failed: %s", self.path, e)
trans.rollback()
raise
finally:
conn.close()
|
