forked from LBRYCommunity/lbry-sdk
71 lines
2.7 KiB
Python
71 lines
2.7 KiB
Python
# pylint: skip-file
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import os
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import sys
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import logging
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log = logging.getLogger(__name__)
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def migrate_db(conf, start, end):
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current = start
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while current < end:
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if current == 1:
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from .migrate1to2 import do_migration
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elif current == 2:
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from .migrate2to3 import do_migration
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elif current == 3:
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from .migrate3to4 import do_migration
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elif current == 4:
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from .migrate4to5 import do_migration
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elif current == 5:
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from .migrate5to6 import do_migration
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elif current == 6:
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from .migrate6to7 import do_migration
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elif current == 7:
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from .migrate7to8 import do_migration
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elif current == 8:
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from .migrate8to9 import do_migration
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elif current == 9:
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from .migrate9to10 import do_migration
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elif current == 10:
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from .migrate10to11 import do_migration
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elif current == 11:
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from .migrate11to12 import do_migration
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elif current == 12:
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from .migrate12to13 import do_migration
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elif current == 13:
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from .migrate13to14 import do_migration
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else:
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raise Exception(f"DB migration of version {current} to {current+1} is not available")
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try:
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do_migration(conf)
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except Exception:
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log.exception("failed to migrate database")
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if os.path.exists(os.path.join(conf.data_dir, "lbrynet.sqlite")):
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backup_name = f"rev_{current}_unmigrated_database"
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count = 0
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while os.path.exists(os.path.join(conf.data_dir, backup_name + ".sqlite")):
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count += 1
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backup_name = f"rev_{current}_unmigrated_database_{count}"
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backup_path = os.path.join(conf.data_dir, backup_name + ".sqlite")
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os.rename(os.path.join(conf.data_dir, "lbrynet.sqlite"), backup_path)
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log.info("made a backup of the unmigrated database: %s", backup_path)
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if os.path.isfile(os.path.join(conf.data_dir, "db_revision")):
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os.remove(os.path.join(conf.data_dir, "db_revision"))
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return None
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current += 1
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log.info("successfully migrated the database from revision %i to %i", current - 1, current)
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return None
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def run_migration_script():
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log_format = "(%(asctime)s)[%(filename)s:%(lineno)s] %(funcName)s(): %(message)s"
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logging.basicConfig(level=logging.DEBUG, format=log_format, filename="migrator.log")
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sys.stdout = open("migrator.out.log", 'w')
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sys.stderr = open("migrator.err.log", 'w')
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migrate_db(sys.argv[1], int(sys.argv[2]), int(sys.argv[3]))
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if __name__ == "__main__":
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run_migration_script()
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