pdf

ALEMBIC

NAME

alembic − lightweight database migration tool for usage with the SQLAlchemy

usage: alembic [−h] [−c CONFIG] [−n NAME] [−x X]

{branches, current, downgrade, history, init, list_templates, revision, splice, stamp, upgrade} ...

positional arguments:

{branches, current, downgrade, history, init, list_templates, revision, splice, stamp, upgrade}

branches

Show current un−spliced branch points

current

Display the current revision for each database.

downgrade

Revert to a previous version.

history

List changeset scripts in chronological order.

init

Initialize a new scripts directory.

list_templates

List available templates

revision

Create a new revision file.

	splice		’splice’ two branches, creating a new revision file. this command isn’t implemented right now.
	stamp		’stamp’ the revision table with the given revision; don’t run any migrations.

upgrade

Upgrade to a later version.

optional arguments:
−h, −−help

show this help message and exit

−c CONFIG, −−config CONFIG

Alternate config file

−n NAME, −−name NAME

Name of section in .ini file to use for Alembic config

−x X

Additional arguments consumed by custom env.py scripts, e.g. −x setting1=somesetting −x setting2=somesetting

pdf