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# Copyright 2013-2021 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 sys
import spack.cmd
import spack.cmd.common.arguments as arguments
import spack.environment as ev
import spack.store
import spack.user_environment as uenv
import spack.util.environment
description = "add package to the user environment"
section = "user environment"
level = "short"
def setup_parser(subparser):
"""Parser is only constructed so that this prints a nice help
message with -h. """
arguments.add_common_arguments(
subparser, ['recurse_dependencies', 'installed_specs'])
shells = subparser.add_mutually_exclusive_group()
shells.add_argument(
'--sh', action='store_const', dest='shell', const='sh',
help="print sh commands to load the package")
shells.add_argument(
'--csh', action='store_const', dest='shell', const='csh',
help="print csh commands to load the package")
shells.add_argument(
'--fish', action='store_const', dest='shell', const='fish',
help="print fish commands to load the package")
subparser.add_argument(
'--first',
action='store_true',
default=False,
dest='load_first',
help="load the first match if multiple packages match the spec"
)
subparser.add_argument(
'--only',
default='package,dependencies',
dest='things_to_load',
choices=['package', 'dependencies'],
help="""select whether to load the package and its dependencies
the default is to load the package and all dependencies
alternatively one can decide to load only the package or only
the dependencies"""
)
def load(parser, args):
env = ev.active_environment()
specs = [spack.cmd.disambiguate_spec(spec, env, first=args.load_first)
for spec in spack.cmd.parse_specs(args.specs)]
if not args.shell:
specs_str = ' '.join(args.specs) or "SPECS"
spack.cmd.common.shell_init_instructions(
"spack load",
" eval `spack load {sh_arg} %s`" % specs_str,
)
return 1
with spack.store.db.read_transaction():
if 'dependencies' in args.things_to_load:
include_roots = 'package' in args.things_to_load
specs = [dep for spec in specs
for dep in
spec.traverse(root=include_roots, order='post')]
env_mod = spack.util.environment.EnvironmentModifications()
for spec in specs:
env_mod.extend(uenv.environment_modifications_for_spec(spec))
env_mod.prepend_path(uenv.spack_loaded_hashes_var, spec.dag_hash())
cmds = env_mod.shell_modifications(args.shell)
sys.stdout.write(cmds)
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