????
Your IP : 216.73.216.63
import click
from flask import g
from flask.cli import with_appcontext
from flask_migrate import list_templates as _list_templates
from flask_migrate import init as _init
from flask_migrate import revision as _revision
from flask_migrate import migrate as _migrate
from flask_migrate import edit as _edit
from flask_migrate import merge as _merge
from flask_migrate import upgrade as _upgrade
from flask_migrate import downgrade as _downgrade
from flask_migrate import show as _show
from flask_migrate import history as _history
from flask_migrate import heads as _heads
from flask_migrate import branches as _branches
from flask_migrate import current as _current
from flask_migrate import stamp as _stamp
from flask_migrate import check as _check
@click.group()
@click.option('-x', '--x-arg', multiple=True,
help='Additional arguments consumed by custom env.py scripts')
@with_appcontext
def db(x_arg):
"""Perform database migrations."""
g.x_arg = x_arg # these will be picked up by Migrate.get_config()
@db.command()
@with_appcontext
def list_templates():
"""List available templates."""
_list_templates()
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.option('--multidb', is_flag=True,
help=('Support multiple databases'))
@click.option('-t', '--template', default=None,
help=('Repository template to use (default is "flask")'))
@click.option('--package', is_flag=True,
help=('Write empty __init__.py files to the environment and '
'version locations'))
@with_appcontext
def init(directory, multidb, template, package):
"""Creates a new migration repository."""
_init(directory, multidb, template, package)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.option('-m', '--message', default=None, help='Revision message')
@click.option('--autogenerate', is_flag=True,
help=('Populate revision script with candidate migration '
'operations, based on comparison of database to model'))
@click.option('--sql', is_flag=True,
help=('Don\'t emit SQL to database - dump to standard output '
'instead'))
@click.option('--head', default='head',
help=('Specify head revision or <branchname>@head to base new '
'revision on'))
@click.option('--splice', is_flag=True,
help=('Allow a non-head revision as the "head" to splice onto'))
@click.option('--branch-label', default=None,
help=('Specify a branch label to apply to the new revision'))
@click.option('--version-path', default=None,
help=('Specify specific path from config for version file'))
@click.option('--rev-id', default=None,
help=('Specify a hardcoded revision id instead of generating '
'one'))
@with_appcontext
def revision(directory, message, autogenerate, sql, head, splice, branch_label,
version_path, rev_id):
"""Create a new revision file."""
_revision(directory, message, autogenerate, sql, head, splice,
branch_label, version_path, rev_id)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.option('-m', '--message', default=None, help='Revision message')
@click.option('--sql', is_flag=True,
help=('Don\'t emit SQL to database - dump to standard output '
'instead'))
@click.option('--head', default='head',
help=('Specify head revision or <branchname>@head to base new '
'revision on'))
@click.option('--splice', is_flag=True,
help=('Allow a non-head revision as the "head" to splice onto'))
@click.option('--branch-label', default=None,
help=('Specify a branch label to apply to the new revision'))
@click.option('--version-path', default=None,
help=('Specify specific path from config for version file'))
@click.option('--rev-id', default=None,
help=('Specify a hardcoded revision id instead of generating '
'one'))
@click.option('-x', '--x-arg', multiple=True,
help='Additional arguments consumed by custom env.py scripts')
@with_appcontext
def migrate(directory, message, sql, head, splice, branch_label, version_path,
rev_id, x_arg):
"""Autogenerate a new revision file (Alias for
'revision --autogenerate')"""
_migrate(directory, message, sql, head, splice, branch_label, version_path,
rev_id, x_arg)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.argument('revision', default='head')
@with_appcontext
def edit(directory, revision):
"""Edit a revision file"""
_edit(directory, revision)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.option('-m', '--message', default=None, help='Merge revision message')
@click.option('--branch-label', default=None,
help=('Specify a branch label to apply to the new revision'))
@click.option('--rev-id', default=None,
help=('Specify a hardcoded revision id instead of generating '
'one'))
@click.argument('revisions', nargs=-1)
@with_appcontext
def merge(directory, message, branch_label, rev_id, revisions):
"""Merge two revisions together, creating a new revision file"""
_merge(directory, revisions, message, branch_label, rev_id)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.option('--sql', is_flag=True,
help=('Don\'t emit SQL to database - dump to standard output '
'instead'))
@click.option('--tag', default=None,
help=('Arbitrary "tag" name - can be used by custom env.py '
'scripts'))
@click.option('-x', '--x-arg', multiple=True,
help='Additional arguments consumed by custom env.py scripts')
@click.argument('revision', default='head')
@with_appcontext
def upgrade(directory, sql, tag, x_arg, revision):
"""Upgrade to a later version"""
_upgrade(directory, revision, sql, tag, x_arg)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.option('--sql', is_flag=True,
help=('Don\'t emit SQL to database - dump to standard output '
'instead'))
@click.option('--tag', default=None,
help=('Arbitrary "tag" name - can be used by custom env.py '
'scripts'))
@click.option('-x', '--x-arg', multiple=True,
help='Additional arguments consumed by custom env.py scripts')
@click.argument('revision', default='-1')
@with_appcontext
def downgrade(directory, sql, tag, x_arg, revision):
"""Revert to a previous version"""
_downgrade(directory, revision, sql, tag, x_arg)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.argument('revision', default='head')
@with_appcontext
def show(directory, revision):
"""Show the revision denoted by the given symbol."""
_show(directory, revision)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.option('-r', '--rev-range', default=None,
help='Specify a revision range; format is [start]:[end]')
@click.option('-v', '--verbose', is_flag=True, help='Use more verbose output')
@click.option('-i', '--indicate-current', is_flag=True,
help=('Indicate current version (Alembic 0.9.9 or greater is '
'required)'))
@with_appcontext
def history(directory, rev_range, verbose, indicate_current):
"""List changeset scripts in chronological order."""
_history(directory, rev_range, verbose, indicate_current)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.option('-v', '--verbose', is_flag=True, help='Use more verbose output')
@click.option('--resolve-dependencies', is_flag=True,
help='Treat dependency versions as down revisions')
@with_appcontext
def heads(directory, verbose, resolve_dependencies):
"""Show current available heads in the script directory"""
_heads(directory, verbose, resolve_dependencies)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.option('-v', '--verbose', is_flag=True, help='Use more verbose output')
@with_appcontext
def branches(directory, verbose):
"""Show current branch points"""
_branches(directory, verbose)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.option('-v', '--verbose', is_flag=True, help='Use more verbose output')
@with_appcontext
def current(directory, verbose):
"""Display the current revision for each database."""
_current(directory, verbose)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@click.option('--sql', is_flag=True,
help=('Don\'t emit SQL to database - dump to standard output '
'instead'))
@click.option('--tag', default=None,
help=('Arbitrary "tag" name - can be used by custom env.py '
'scripts'))
@click.option('--purge', is_flag=True,
help=('Delete the version in the alembic_version table before '
'stamping'))
@click.argument('revision', default='head')
@with_appcontext
def stamp(directory, sql, tag, revision, purge):
"""'stamp' the revision table with the given revision; don't run any
migrations"""
_stamp(directory, revision, sql, tag, purge)
@db.command()
@click.option('-d', '--directory', default=None,
help=('Migration script directory (default is "migrations")'))
@with_appcontext
def check(directory):
"""Check if there are any new operations to migrate"""
_check(directory)