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# Copyright 2013-2024 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 os
import sys
import spack.cmd
import spack.error
import spack.user_environment as uenv
import spack.util.environment
from spack.cmd.common import arguments
description = "remove package from 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, ["installed_specs"])
shells = subparser.add_mutually_exclusive_group()
shells.add_argument(
"--sh",
action="store_const",
dest="shell",
const="sh",
help="print sh commands to activate the environment",
)
shells.add_argument(
"--csh",
action="store_const",
dest="shell",
const="csh",
help="print csh commands to activate the environment",
)
shells.add_argument(
"--fish",
action="store_const",
dest="shell",
const="fish",
help="print fish commands to load the package",
)
shells.add_argument(
"--bat",
action="store_const",
dest="shell",
const="bat",
help="print bat commands to load the package",
)
shells.add_argument(
"--pwsh",
action="store_const",
dest="shell",
const="pwsh",
help="print pwsh commands to load the package",
)
subparser.add_argument(
"-a", "--all", action="store_true", help="unload all loaded Spack packages"
)
def unload(parser, args):
"""unload spack packages from the user environment"""
if args.specs and args.all:
raise spack.error.SpackError(
"Cannot specify specs on command line when unloading all specs with '--all'"
)
hashes = os.environ.get(uenv.spack_loaded_hashes_var, "").split(":")
if args.specs:
specs = [
spack.cmd.disambiguate_spec_from_hashes(spec, hashes)
for spec in spack.cmd.parse_specs(args.specs)
]
else:
specs = spack.store.STORE.db.query(hashes=hashes)
if not args.shell:
specs_str = " ".join(args.specs) or "SPECS"
spack.cmd.common.shell_init_instructions(
"spack unload", " eval `spack unload {sh_arg}` %s" % specs_str
)
return 1
env_mod = uenv.environment_modifications_for_specs(*specs).reversed()
for spec in specs:
env_mod.remove_path(uenv.spack_loaded_hashes_var, spec.dag_hash())
cmds = env_mod.shell_modifications(args.shell)
sys.stdout.write(cmds)
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