In the same way that we can do:

DotNetCoreBuild
DotNetCorePublish
etc

Would be good to be able to run DotNetCoreWatch as a top level task in my Cake Build script.

If a typo is made in passing in arguments, earth should be able to let the user know they are passing in an unused arg

Use case

earth --build-arg ELIXIR=1.9.4 --build-arg OPT=20.3.8.26 +test
           buildkitd | Found buildkit daemon as docker container (earthly-buildkitd)
h/elixir:1.9.4-erlang-23.1.1-alpine-3.12.0 | --> Load metadata
h/elixir:1.9.4-erlang-23.1.1-alpine-3.12.0 | ERR

doit already support Task parameters, but they are not convenient to be used with task-groups.

Example of proposed feature:

from doit import task_param

@task_param({'name':'param1', 'short':'p', 'default':'default value'})
def task_py_params(param1):
    for name in ['foo', 'bar']:
        yield {
            'name': name,
            'actions':['echo {}'.format(param1)],