From 339e6b8de95f8edcd68af0d6edb625c6c67b9ad8 Mon Sep 17 00:00:00 2001
From: Patrick Jentsch <p.jentsch@uni-bielefeld.de>
Date: Fri, 6 Sep 2019 13:03:45 +0200
Subject: [PATCH] Add migrations directory to repo
---
.gitignore | 1 -
migrations/README | 1 +
migrations/alembic.ini | 45 +++++++++++++
migrations/env.py | 96 ++++++++++++++++++++++++++++
migrations/script.py.mako | 24 +++++++
migrations/versions/3ca96d906e29_.py | 80 +++++++++++++++++++++++
6 files changed, 246 insertions(+), 1 deletion(-)
create mode 100644 migrations/README
create mode 100644 migrations/alembic.ini
create mode 100644 migrations/env.py
create mode 100644 migrations/script.py.mako
create mode 100644 migrations/versions/3ca96d906e29_.py
diff --git a/.gitignore b/.gitignore
index 682148e7..92adc2f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,3 @@
-migrations
opaque_database_env
opaque_env
__pycache__
diff --git a/migrations/README b/migrations/README
new file mode 100644
index 00000000..98e4f9c4
--- /dev/null
+++ b/migrations/README
@@ -0,0 +1 @@
+Generic single-database configuration.
\ No newline at end of file
diff --git a/migrations/alembic.ini b/migrations/alembic.ini
new file mode 100644
index 00000000..f8ed4801
--- /dev/null
+++ b/migrations/alembic.ini
@@ -0,0 +1,45 @@
+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
diff --git a/migrations/env.py b/migrations/env.py
new file mode 100644
index 00000000..79b8174b
--- /dev/null
+++ b/migrations/env.py
@@ -0,0 +1,96 @@
+from __future__ import with_statement
+
+import logging
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# 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.
+fileConfig(config.config_file_name)
+logger = logging.getLogger('alembic.env')
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+from flask import current_app
+config.set_main_option(
+ 'sqlalchemy.url', current_app.config.get(
+ 'SQLALCHEMY_DATABASE_URI').replace('%', '%%'))
+target_metadata = current_app.extensions['migrate'].db.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():
+ """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
+ )
+
+ with context.begin_transaction():
+ context.run_migrations()
+
+
+def run_migrations_online():
+ """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):
+ if getattr(config.cmd_opts, 'autogenerate', False):
+ script = directives[0]
+ if script.upgrade_ops.is_empty():
+ directives[:] = []
+ logger.info('No changes in schema detected.')
+
+ connectable = engine_from_config(
+ config.get_section(config.config_ini_section),
+ prefix='sqlalchemy.',
+ poolclass=pool.NullPool,
+ )
+
+ with connectable.connect() as connection:
+ context.configure(
+ connection=connection,
+ target_metadata=target_metadata,
+ process_revision_directives=process_revision_directives,
+ **current_app.extensions['migrate'].configure_args
+ )
+
+ with context.begin_transaction():
+ context.run_migrations()
+
+
+if context.is_offline_mode():
+ run_migrations_offline()
+else:
+ run_migrations_online()
diff --git a/migrations/script.py.mako b/migrations/script.py.mako
new file mode 100644
index 00000000..2c015630
--- /dev/null
+++ b/migrations/script.py.mako
@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${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():
+ ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+ ${downgrades if downgrades else "pass"}
diff --git a/migrations/versions/3ca96d906e29_.py b/migrations/versions/3ca96d906e29_.py
new file mode 100644
index 00000000..bece7894
--- /dev/null
+++ b/migrations/versions/3ca96d906e29_.py
@@ -0,0 +1,80 @@
+"""empty message
+
+Revision ID: 3ca96d906e29
+Revises:
+Create Date: 2019-09-05 11:43:41.634109
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '3ca96d906e29'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+ # ### commands auto generated by Alembic - please adjust! ###
+ op.create_table('roles',
+ sa.Column('id', sa.Integer(), nullable=False),
+ sa.Column('default', sa.Boolean(), nullable=True),
+ sa.Column('name', sa.String(length=64), nullable=True),
+ sa.Column('permissions', sa.Integer(), nullable=True),
+ sa.PrimaryKeyConstraint('id'),
+ sa.UniqueConstraint('name')
+ )
+ op.create_index(op.f('ix_roles_default'), 'roles', ['default'], unique=False)
+ op.create_table('users',
+ sa.Column('id', sa.Integer(), nullable=False),
+ sa.Column('confirmed', sa.Boolean(), nullable=True),
+ sa.Column('email', sa.String(length=64), nullable=True),
+ sa.Column('password_hash', sa.String(length=128), nullable=True),
+ sa.Column('registration_date', sa.DateTime(), nullable=True),
+ sa.Column('role_id', sa.Integer(), nullable=True),
+ sa.Column('username', sa.String(length=64), nullable=True),
+ sa.ForeignKeyConstraint(['role_id'], ['roles.id'], ),
+ sa.PrimaryKeyConstraint('id')
+ )
+ op.create_index(op.f('ix_users_email'), 'users', ['email'], unique=True)
+ op.create_index(op.f('ix_users_username'), 'users', ['username'], unique=True)
+ op.create_table('corpora',
+ sa.Column('id', sa.Integer(), nullable=False),
+ sa.Column('creation_date', sa.DateTime(), nullable=True),
+ sa.Column('description', sa.String(length=255), nullable=True),
+ sa.Column('title', sa.String(length=32), nullable=True),
+ sa.Column('user_id', sa.Integer(), nullable=True),
+ sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+ sa.PrimaryKeyConstraint('id')
+ )
+ op.create_table('jobs',
+ sa.Column('id', sa.Integer(), nullable=False),
+ sa.Column('creation_date', sa.DateTime(), nullable=True),
+ sa.Column('description', sa.String(length=255), nullable=True),
+ sa.Column('end_date', sa.DateTime(), nullable=True),
+ sa.Column('mem_mb', sa.Integer(), nullable=True),
+ sa.Column('n_cores', sa.Integer(), nullable=True),
+ sa.Column('service', sa.String(length=64), nullable=True),
+ sa.Column('service_args', sa.String(length=255), nullable=True),
+ sa.Column('service_version', sa.String(length=16), nullable=True),
+ sa.Column('status', sa.String(length=16), nullable=True),
+ sa.Column('title', sa.String(length=32), nullable=True),
+ sa.Column('user_id', sa.Integer(), nullable=True),
+ sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+ sa.PrimaryKeyConstraint('id')
+ )
+ # ### end Alembic commands ###
+
+
+def downgrade():
+ # ### commands auto generated by Alembic - please adjust! ###
+ op.drop_table('jobs')
+ op.drop_table('corpora')
+ op.drop_index(op.f('ix_users_username'), table_name='users')
+ op.drop_index(op.f('ix_users_email'), table_name='users')
+ op.drop_table('users')
+ op.drop_index(op.f('ix_roles_default'), table_name='roles')
+ op.drop_table('roles')
+ # ### end Alembic commands ###
--
GitLab