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https://github.com/LukeHagar/pypistats.org.git
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a5bb518b88
* update ignore files * setup poetry * add db seeds * black * set up compose * backfill script * add makefile, update readme * update poetry * readme * Fixes * cleanup and rate limit changes * poetry 1.0.5 * some more cleanup * k8s * k8s * update yml * cleanup and admin * deploy
89 lines
2.6 KiB
Python
Executable File
89 lines
2.6 KiB
Python
Executable File
import logging
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from logging.config import fileConfig
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from alembic import context
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from flask import current_app
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from sqlalchemy import engine_from_config
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from sqlalchemy import pool
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# this is the Alembic Config object, which provides
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# access to the values within the .ini file in use.
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config = context.config
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# Interpret the config file for Python logging.
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# This line sets up loggers basically.
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fileConfig(config.config_file_name)
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logger = logging.getLogger("alembic.env")
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config.set_main_option("sqlalchemy.url", current_app.config.get("SQLALCHEMY_DATABASE_URI"))
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target_metadata = current_app.extensions["migrate"].db.metadata
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# other values from the config, defined by the needs of env.py,
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# can be acquired:
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# my_important_option = config.get_main_option("my_important_option")
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# ... etc.
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def run_migrations_offline():
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"""Run migrations in 'offline' mode.
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This configures the context with just a URL
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and not an Engine, though an Engine is acceptable
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here as well. By skipping the Engine creation
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we don't even need a DBAPI to be available.
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Calls to context.execute() here emit the given string to the
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script output.
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"""
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url = config.get_main_option("sqlalchemy.url")
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context.configure(url=url)
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with context.begin_transaction():
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context.run_migrations()
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def run_migrations_online():
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"""Run migrations in 'online' mode.
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In this scenario we need to create an Engine
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and associate a connection with the context.
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"""
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# this callback is used to prevent an auto-migration from being generated
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# when there are no changes to the schema
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# reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
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def process_revision_directives(context, revision, directives):
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if getattr(config.cmd_opts, "autogenerate", False):
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script = directives[0]
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if script.upgrade_ops.is_empty():
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directives[:] = []
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logger.info("No changes in schema detected.")
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engine = engine_from_config(
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config.get_section(config.config_ini_section), prefix="sqlalchemy.", poolclass=pool.NullPool
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)
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connection = engine.connect()
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context.configure(
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connection=connection,
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target_metadata=target_metadata,
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compare_type=True,
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process_revision_directives=process_revision_directives,
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**current_app.extensions["migrate"].configure_args,
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)
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try:
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with context.begin_transaction():
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context.run_migrations()
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finally:
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connection.close()
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online()
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