root / snf-pithos-backend / pithos / backends / migrate.py @ 1e47e49d
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1 | 0a47073c | Kostas Papadimitriou | # Copyright 2011-2012 GRNET S.A. All rights reserved.
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2 | 0a47073c | Kostas Papadimitriou | #
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3 | 0a47073c | Kostas Papadimitriou | # Redistribution and use in source and binary forms, with or
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4 | 0a47073c | Kostas Papadimitriou | # without modification, are permitted provided that the following
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5 | 0a47073c | Kostas Papadimitriou | # conditions are met:
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6 | 0a47073c | Kostas Papadimitriou | #
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7 | 0a47073c | Kostas Papadimitriou | # 1. Redistributions of source code must retain the above
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8 | 0a47073c | Kostas Papadimitriou | # copyright notice, this list of conditions and the following
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9 | 0a47073c | Kostas Papadimitriou | # disclaimer.
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10 | 0a47073c | Kostas Papadimitriou | #
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11 | 0a47073c | Kostas Papadimitriou | # 2. Redistributions in binary form must reproduce the above
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12 | 0a47073c | Kostas Papadimitriou | # copyright notice, this list of conditions and the following
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13 | 0a47073c | Kostas Papadimitriou | # disclaimer in the documentation and/or other materials
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14 | 0a47073c | Kostas Papadimitriou | # provided with the distribution.
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15 | 0a47073c | Kostas Papadimitriou | #
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16 | 0a47073c | Kostas Papadimitriou | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 0a47073c | Kostas Papadimitriou | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 0a47073c | Kostas Papadimitriou | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 0a47073c | Kostas Papadimitriou | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 0a47073c | Kostas Papadimitriou | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 0a47073c | Kostas Papadimitriou | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 0a47073c | Kostas Papadimitriou | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 0a47073c | Kostas Papadimitriou | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 0a47073c | Kostas Papadimitriou | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 0a47073c | Kostas Papadimitriou | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 0a47073c | Kostas Papadimitriou | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 0a47073c | Kostas Papadimitriou | # POSSIBILITY OF SUCH DAMAGE.
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28 | 0a47073c | Kostas Papadimitriou | #
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29 | 0a47073c | Kostas Papadimitriou | # The views and conclusions contained in the software and
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30 | 0a47073c | Kostas Papadimitriou | # documentation are those of the authors and should not be
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31 | 0a47073c | Kostas Papadimitriou | # interpreted as representing official policies, either expressed
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32 | 0a47073c | Kostas Papadimitriou | # or implied, of GRNET S.A.
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33 | 0a47073c | Kostas Papadimitriou | |
34 | 0a47073c | Kostas Papadimitriou | """
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35 | 0a47073c | Kostas Papadimitriou | Alembic migration wrapper for pithos backend database.
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36 | 0a47073c | Kostas Papadimitriou |
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37 | 0a47073c | Kostas Papadimitriou | - Locate alembic.ini in backends/lib/sqlalchemy package and pass it
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38 | 0a47073c | Kostas Papadimitriou | as parameter to alembic
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39 | 0a47073c | Kostas Papadimitriou |
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40 | 0a47073c | Kostas Papadimitriou | e.g::
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41 | 0a47073c | Kostas Papadimitriou |
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42 | 0a47073c | Kostas Papadimitriou | $ pithos-migrate upgrade head
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43 | 0a47073c | Kostas Papadimitriou |
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44 | 0a47073c | Kostas Papadimitriou | """
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45 | 0a47073c | Kostas Papadimitriou | |
46 | 0a47073c | Kostas Papadimitriou | import sys |
47 | 0a47073c | Kostas Papadimitriou | import os |
48 | 0a47073c | Kostas Papadimitriou | |
49 | 6a82f89f | Sofia Papagiannaki | from alembic.config import main as alembic_main, Config |
50 | 6a82f89f | Sofia Papagiannaki | from alembic import context, command |
51 | 6a82f89f | Sofia Papagiannaki | |
52 | 0a47073c | Kostas Papadimitriou | from pithos.backends.lib import sqlalchemy as sqlalchemy_backend |
53 | bc4f25c0 | Sofia Papagiannaki | from pithos.backends.lib.sqlalchemy import (node, groups, public, xfeatures, |
54 | bc4f25c0 | Sofia Papagiannaki | quotaholder_serials) |
55 | 6a82f89f | Sofia Papagiannaki | |
56 | e95431e5 | Georgios D. Tsoukalas | os.environ['DJANGO_SETTINGS_MODULE'] = 'synnefo.settings' |
57 | e95431e5 | Georgios D. Tsoukalas | |
58 | 4051c82a | Kostas Papadimitriou | try:
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59 | 4051c82a | Kostas Papadimitriou | # pithos-app case
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60 | 4051c82a | Kostas Papadimitriou | from synnefo.settings import PITHOS_BACKEND_DB_CONNECTION |
61 | 4051c82a | Kostas Papadimitriou | except ImportError: |
62 | 4051c82a | Kostas Papadimitriou | try:
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63 | 4051c82a | Kostas Papadimitriou | # plankton case
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64 | 4051c82a | Kostas Papadimitriou | from synnefo.settings import BACKEND_DB_CONNECTION as \ |
65 | 4051c82a | Kostas Papadimitriou | PITHOS_BACKEND_DB_CONNECTION |
66 | 4051c82a | Kostas Papadimitriou | except ImportError: |
67 | 4051c82a | Kostas Papadimitriou | PITHOS_BACKEND_DB_CONNECTION = None
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68 | e3240ba0 | Kostas Papadimitriou | |
69 | 6a82f89f | Sofia Papagiannaki | import sqlalchemy as sa |
70 | 0a47073c | Kostas Papadimitriou | |
71 | 0a47073c | Kostas Papadimitriou | DEFAULT_ALEMBIC_INI_PATH = os.path.join( |
72 | 2715ade4 | Sofia Papagiannaki | os.path.abspath(os.path.dirname(sqlalchemy_backend.__file__)), |
73 | 2715ade4 | Sofia Papagiannaki | 'alembic.ini')
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74 | 0a47073c | Kostas Papadimitriou | |
75 | e3240ba0 | Kostas Papadimitriou | |
76 | bc4f25c0 | Sofia Papagiannaki | def initialize_db(dbconnection): |
77 | 6a82f89f | Sofia Papagiannaki | alembic_cfg = Config(DEFAULT_ALEMBIC_INI_PATH) |
78 | e3240ba0 | Kostas Papadimitriou | |
79 | bc4f25c0 | Sofia Papagiannaki | db = alembic_cfg.get_main_option("sqlalchemy.url", dbconnection)
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80 | e3240ba0 | Kostas Papadimitriou | alembic_cfg.set_main_option("sqlalchemy.url", db)
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81 | e3240ba0 | Kostas Papadimitriou | |
82 | 6a82f89f | Sofia Papagiannaki | engine = sa.engine_from_config( |
83 | 2715ade4 | Sofia Papagiannaki | alembic_cfg.get_section(alembic_cfg.config_ini_section), |
84 | 2715ade4 | Sofia Papagiannaki | prefix='sqlalchemy.')
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85 | e3240ba0 | Kostas Papadimitriou | |
86 | 6a82f89f | Sofia Papagiannaki | node.create_tables(engine) |
87 | 6a82f89f | Sofia Papagiannaki | groups.create_tables(engine) |
88 | 6a82f89f | Sofia Papagiannaki | public.create_tables(engine) |
89 | 6a82f89f | Sofia Papagiannaki | xfeatures.create_tables(engine) |
90 | bc4f25c0 | Sofia Papagiannaki | quotaholder_serials.create_tables(engine) |
91 | e3240ba0 | Kostas Papadimitriou | |
92 | 6a82f89f | Sofia Papagiannaki | # then, load the Alembic configuration and generate the
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93 | 6a82f89f | Sofia Papagiannaki | # version table, "stamping" it with the most recent rev:
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94 | 6a82f89f | Sofia Papagiannaki | command.stamp(alembic_cfg, "head")
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95 | 6a82f89f | Sofia Papagiannaki | |
96 | 6a82f89f | Sofia Papagiannaki | |
97 | 0a47073c | Kostas Papadimitriou | def main(argv=None, **kwargs): |
98 | 0a47073c | Kostas Papadimitriou | if not argv: |
99 | 0a47073c | Kostas Papadimitriou | argv = sys.argv |
100 | e3240ba0 | Kostas Papadimitriou | |
101 | 0a47073c | Kostas Papadimitriou | # clean up args
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102 | 0a47073c | Kostas Papadimitriou | argv.pop(0)
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103 | e3240ba0 | Kostas Papadimitriou | |
104 | e3240ba0 | Kostas Papadimitriou | if len(argv) >= 1 and argv[0] == 'initdb': |
105 | e3240ba0 | Kostas Papadimitriou | print "Initializing db." |
106 | bc4f25c0 | Sofia Papagiannaki | initialize_db(PITHOS_BACKEND_DB_CONNECTION) |
107 | e3240ba0 | Kostas Papadimitriou | print "DB initialized." |
108 | e3240ba0 | Kostas Papadimitriou | exit(1) |
109 | e3240ba0 | Kostas Papadimitriou | |
110 | 0a47073c | Kostas Papadimitriou | # default config arg, if not already set
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111 | 0a47073c | Kostas Papadimitriou | if not '-c' in argv: |
112 | 0a47073c | Kostas Papadimitriou | argv.insert(0, DEFAULT_ALEMBIC_INI_PATH)
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113 | 0a47073c | Kostas Papadimitriou | argv.insert(0, '-c') |
114 | 0a47073c | Kostas Papadimitriou | |
115 | 0a47073c | Kostas Papadimitriou | alembic_main(argv, **kwargs) |
116 | 0a47073c | Kostas Papadimitriou | if __name__ == '__main__': |
117 | 0a47073c | Kostas Papadimitriou | import sys |
118 | 0a47073c | Kostas Papadimitriou | main(sys.argv) |