Utility plugins for Slack-Machine, the sexy, simple, yet powerful and extendable Slack bot.
pip install slack-machine-pluginsCommander provides two classes Command and CommandArgument for a declarative way to define chat commands and their arguments for input validation and error feedback for the user. Features include:
- Type and length validation for chat command arguments.
- Strict choices.
- Custom validation and error messages.
- Usage and error texts for user feedback.
Taken from test case, realistic example.
# command definition
####################
from machine_plugins.commander import Command, CommandArgument
scale_cmd = Command(
name='scale',
description='Scale a deployment.',
arguments=[
CommandArgument(
name='namespace',
target_type=str,
choices=['default', 'dev'],
description='Namespace of the deployment.',
),
CommandArgument(
name='deployment',
validation=(lambda d: d.startswith('deployment-prefix-'),),
description='Name of the deployment.',
),
CommandArgument(
name='replicas',
target_type=int,
validation=(lambda r: 2 <= int(r) <= 10, 'You can not scale under 2 or above 10 replicas.'),
),
],
)
# command usage in slack-machine
################################
from machine.plugins.base import MachineBasePlugin
from machine.plugins.decorators import respond_to
class DeploymentPlugin(MachineBasePlugin):
@respond_to(regex=r'^scale ?(?P<args>.*)$')
def scale(self, msg, args):
errs = scale_cmd.errors(args)
if errs:
resp = '\n'.join(errs)
msg.say(f'```{resp}```')
return
# input validation complete, do your thing e.g `scale(*args.split())`