fabfile.py 文件源码

def docker_machine(machine):
    """
    Sets the environment to use a given docker machine.
    """
    _env = local('docker-machine env {}'.format(machine), capture=True)
    # Reorganize into a string that could be used with prefix().
    _env = re.sub(r'^#.*$', '', _env, flags=re.MULTILINE)  # Remove comments
    _env = re.sub(r'^export ', '', _env, flags=re.MULTILINE)  # Remove `export `
    _env = re.sub(r'\n', ' ', _env, flags=re.MULTILINE)  # Merge to a single line
    return _env