#
# Copyright (c) 2022 TUM Department of Electrical and Computer Engineering.
#
# This file is part of MLonMCU.
# See https://github.com/tum-ei-eda/mlonmcu.git for further info.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""Command line subcommand for manaing environments."""
import configparser
from mlonmcu.environment.config import get_environments_file
[docs]
def get_parser(subparsers):
""" "Define and return a subparser for the env subcommand."""
parser = subparsers.add_parser("env", description="List ML on MCU environments.")
parser.set_defaults(func=handle)
return parser
[docs]
class EnvironmentHint:
def __init__(self, name, path, created_at=None):
self.name = name
self.path = path
self.created_at = created_at
[docs]
def lookup_user_environments(file):
config = configparser.ConfigParser()
config.read(file)
hints = []
for env_name in config.sections():
env = config[env_name]
assert "path" in env
path = env["path"]
created_at = None
if "created" in env:
created_at = env["created"]
hint = EnvironmentHint(env_name, path, created_at=created_at)
hints.append(hint)
return hints
[docs]
def handle(args):
envs_file = get_environments_file()
print(f"Looking for user environments config file: {envs_file}")
envs = lookup_user_environments(envs_file)
count = len(envs)
if not envs or count == 0:
print("No mlonmcu environments were found for the current user. You can create a new one using `mlonmcu init`")
else:
print(f"Found {count} mlonmcu environment(s):")
for env in envs:
print(f" - {env.name} ({env.path})")
print("Point the environment variable MLONMCU_HOME to a environment directory to get started")