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8da6098631
Attempting to "upgrade" from `main` to 4.x should abort; Django does not prevent running old code against the new database (though it likely errors at runtime), and `./manage.py migrate` from the old version during the "upgrade" does not downgrade the database, since the migrations are entirely missing in that directory, so don't get reversed. Compare the list of applied migrations to the list of on-disk migrations, and abort if there are applied migrations which are not found on disk. Fixes: #19284.
39 lines
1.1 KiB
Python
Executable File
39 lines
1.1 KiB
Python
Executable File
#!/usr/bin/env python3
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import logging
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import os
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import sys
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ZULIP_PATH = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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sys.path.insert(0, ZULIP_PATH)
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from scripts.lib.setup_path import setup_path
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from scripts.lib.zulip_tools import DEPLOYMENTS_DIR, assert_not_running_as_root, parse_version_from
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from version import ZULIP_VERSION as new_version
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assert_not_running_as_root()
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setup_path()
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os.environ["DJANGO_SETTINGS_MODULE"] = "zproject.settings"
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import django
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from django.db import connection
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from django.db.migrations.loader import MigrationLoader
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django.setup()
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loader = MigrationLoader(connection)
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missing = set(loader.applied_migrations)
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for key, migration in loader.disk_migrations.items():
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missing.discard(key)
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missing.difference_update(migration.replaces)
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if not missing:
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sys.exit(0)
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current_version = parse_version_from(os.path.join(DEPLOYMENTS_DIR, "current"))
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logging.error(
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"This is not an upgrade -- the current deployment (version %s) "
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"contains database migrations which %s (version %s) does not.",
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current_version,
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len(missing),
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ZULIP_PATH,
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new_version,
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)
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sys.exit(1)
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