Source code for spack.cmd.add

# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

import llnl.util.tty as tty

import spack.cmd
import spack.cmd.common.arguments as arguments

description = 'add a spec to an environment'
section = "environments"
level = "long"


def setup_parser(subparser):
    subparser.add_argument('-l', '--list-name',
                           dest='list_name', default='specs',
                           help="name of the list to add specs to")
    arguments.add_common_arguments(subparser, ['specs'])


def add(parser, args):
    env = spack.cmd.require_active_env(cmd_name='add')

    with env.write_transaction():
        for spec in spack.cmd.parse_specs(args.specs):
            if not env.add(spec, args.list_name):
                tty.msg("Package {0} was already added to {1}"
                        .format(spec.name, env.name))
            else:
                tty.msg('Adding %s to environment %s' % (spec, env.name))
        env.write()