Patch Click to use a Flask 1.0 AppGroup by default to get automatic app context for commands

app_group_patch.py

import click

try:
    from flask.cli import AppGroup
except ImportError:
    from flask_cli import AppGroup


def group(name=None, **attrs):
    """The same as ``click.grop`` but sets the default command class
    to ``flask.cli.AppGroup``
    """
    attrs.setdefault('cls', AppGroup)
    return click.command(name, **attrs)

click.group = group