removed old migrations

geant_service_orchestrator/migrations/env.py

-import logging
-import os
-from alembic import context
-from sqlalchemy import engine_from_config, pool
-
-import orchestrator
-from orchestrator.db.database import BaseModel
-from orchestrator.settings import app_settings
-
-# this is the Alembic Config object, which provides
-# access to the values within the .ini file in use.
-config = context.config
-
-# Interpret the config file for Python logging.
-# This line sets up loggers basically.
-logger = logging.getLogger("alembic.env")
-
-config.set_main_option("sqlalchemy.url", app_settings.DATABASE_URI)
-
-# add your model's MetaData object here
-# for 'autogenerate' support
-# from myapp import mymodel
-# target_metadata = mymodel.Base.metadata
-target_metadata = BaseModel.metadata
-
-# other values from the config, defined by the needs of env.py,
-# can be acquired:
-# my_important_option = config.get_main_option("my_important_option")
-# ... etc.
-
-
-def run_migrations_offline() -> None:
-    """Run migrations in 'offline' mode.
-
-    This configures the context with just a URL
-    and not an Engine, though an Engine is acceptable
-    here as well.  By skipping the Engine creation
-    we don't even need a DBAPI to be available.
-
-    Calls to context.execute() here emit the given string to the
-    script output.
-
-    """
-    url = config.get_main_option("sqlalchemy.url")
-    context.configure(
-        url=url, target_metadata=target_metadata, literal_binds=True, dialect_opts={"paramstyle": "named"}
-    )
-
-    with context.begin_transaction():
-        context.run_migrations()
-
-
-def run_migrations_online() -> None:
-    """Run migrations in 'online' mode.
-
-    In this scenario we need to create an Engine
-    and associate a connection with the context.
-
-    """
-
-    # this callback is used to prevent an auto-migration from being generated
-    # when there are no changes to the schema
-    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
-    def process_revision_directives(context, revision, directives):  # type: ignore
-        if getattr(config.cmd_opts, "autogenerate", False):
-            script = directives[0]
-            if script.upgrade_ops.is_empty():
-                directives[:] = []
-                logger.info("No changes in schema detected.")
-
-    engine = engine_from_config(
-        config.get_section(config.config_ini_section), prefix="sqlalchemy.", poolclass=pool.NullPool
-    )
-
-    connection = engine.connect()
-    context.configure(
-        connection=connection,
-        target_metadata=target_metadata,
-        process_revision_directives=process_revision_directives,
-        compare_type=True,
-    )
-    try:
-        with context.begin_transaction():
-            context.run_migrations()
-    finally:
-        connection.close()
-
-
-if context.is_offline_mode():
-    run_migrations_offline()
-else:
-    run_migrations_online()

geant_service_orchestrator/migrations/helpers.py

-from orchestrator.migrations.helpers import *
-
-# Write your own helper functions below this line.

geant_service_orchestrator/migrations/script.py.mako

-"""${message}.
-
-Revision ID: ${up_revision}
-Revises: ${down_revision | comma,n}
-Create Date: ${create_date}
-
-"""
-import sqlalchemy as sa
-from alembic import op
-${imports if imports else ""}
-# revision identifiers, used by Alembic.
-revision = ${repr(up_revision)}
-down_revision = ${repr(down_revision)}
-branch_labels = ${repr(branch_labels)}
-depends_on = ${repr(depends_on)}
-
-
-def upgrade() -> None:
-    ${upgrades if upgrades else "pass"}
-
-
-def downgrade() -> None:
-    ${downgrades if downgrades else "pass"}