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import subprocess
import json
from . import environment


def get_ephemeral_key(
        env: environment.RelengEnvironment) -> environment.S3Credentials:
    output = None
    command = [
        'garage-ephemeral-key', 'new', '--name', f'releng-{env.name}', '--read',
        '--write', '--age-secs', '3600',
        env.releases_bucket.removeprefix('s3://'),
        env.cache_bucket.removeprefix('s3://'),
        env.docs_bucket.removeprefix('s3://'),
    ]
    if env.s3_ssh_host is not None:
        command = ['ssh', f'{env.s3_ssh_user}@{env.s3_ssh_host}', *command]
    output = subprocess.check_output(command)
    d = json.loads(output.decode())
    return environment.S3Credentials(name=d['name'],
                                     id=d['id'],
                                     secret_key=d['secret_key'])