1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
|
# Copyright 2013-2023 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 argparse
import os
import shutil
import sys
import tempfile
import llnl.util.filesystem as fs
import llnl.util.tty as tty
from llnl.util.tty.colify import colify
from llnl.util.tty.color import colorize
import spack.cmd
import spack.cmd.common
import spack.cmd.common.arguments
import spack.cmd.common.arguments as arguments
import spack.cmd.install
import spack.cmd.modules
import spack.cmd.uninstall
import spack.config
import spack.environment as ev
import spack.environment.depfile as depfile
import spack.environment.shell
import spack.schema.env
import spack.spec
import spack.tengine
import spack.util.string as string
from spack.util.environment import EnvironmentModifications
description = "manage virtual environments"
section = "environments"
level = "short"
#: List of subcommands of `spack env`
subcommands = [
"activate",
"deactivate",
"create",
["remove", "rm"],
["list", "ls"],
["status", "st"],
"loads",
"view",
"update",
"revert",
"depfile",
]
#
# env activate
#
def env_activate_setup_parser(subparser):
"""set the current environment"""
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 activate the environment",
)
shells.add_argument(
"--bat",
action="store_const",
dest="shell",
const="bat",
help="print bat commands to activate the environment",
)
view_options = subparser.add_mutually_exclusive_group()
view_options.add_argument(
"-v",
"--with-view",
action="store_const",
dest="with_view",
const=True,
default=True,
help="update PATH etc. with associated view",
)
view_options.add_argument(
"-V",
"--without-view",
action="store_const",
dest="with_view",
const=False,
default=True,
help="do not update PATH etc. with associated view",
)
subparser.add_argument(
"-p",
"--prompt",
action="store_true",
default=False,
help="decorate the command line prompt when activating",
)
env_options = subparser.add_mutually_exclusive_group()
env_options.add_argument(
"--temp",
action="store_true",
default=False,
help="create and activate an environment in a temporary directory",
)
env_options.add_argument(
"-d", "--dir", default=None, help="activate the environment in this directory"
)
env_options.add_argument(
metavar="env",
dest="activate_env",
nargs="?",
default=None,
help="name of environment to activate",
)
def create_temp_env_directory():
"""
Returns the path of a temporary directory in which to
create an environment
"""
return tempfile.mkdtemp(prefix="spack-")
def env_activate(args):
if not args.activate_env and not args.dir and not args.temp:
tty.die("spack env activate requires an environment name, directory, or --temp")
if not args.shell:
spack.cmd.common.shell_init_instructions(
"spack env activate", " eval `spack env activate {sh_arg} [...]`"
)
return 1
# Error out when -e, -E, -D flags are given, cause they are ambiguous.
if args.env or args.no_env or args.env_dir:
tty.die("Calling spack env activate with --env, --env-dir and --no-env " "is ambiguous")
env_name_or_dir = args.activate_env or args.dir
# Temporary environment
if args.temp:
env = create_temp_env_directory()
env_path = os.path.abspath(env)
short_name = os.path.basename(env_path)
ev.create_in_dir(env).write(regenerate=False)
# Managed environment
elif ev.exists(env_name_or_dir) and not args.dir:
env_path = ev.root(env_name_or_dir)
short_name = env_name_or_dir
# Environment directory
elif ev.is_env_dir(env_name_or_dir):
env_path = os.path.abspath(env_name_or_dir)
short_name = os.path.basename(env_path)
else:
tty.die("No such environment: '%s'" % env_name_or_dir)
env_prompt = "[%s]" % short_name
# We only support one active environment at a time, so deactivate the current one.
if ev.active_environment() is None:
cmds = ""
env_mods = EnvironmentModifications()
else:
cmds = spack.environment.shell.deactivate_header(shell=args.shell)
env_mods = spack.environment.shell.deactivate()
# Activate new environment
active_env = ev.Environment(env_path)
cmds += spack.environment.shell.activate_header(
env=active_env, shell=args.shell, prompt=env_prompt if args.prompt else None
)
env_mods.extend(spack.environment.shell.activate(env=active_env, add_view=args.with_view))
cmds += env_mods.shell_modifications(args.shell)
sys.stdout.write(cmds)
#
# env deactivate
#
def env_deactivate_setup_parser(subparser):
"""deactivate any active environment in the shell"""
shells = subparser.add_mutually_exclusive_group()
shells.add_argument(
"--sh",
action="store_const",
dest="shell",
const="sh",
help="print sh commands to deactivate the environment",
)
shells.add_argument(
"--csh",
action="store_const",
dest="shell",
const="csh",
help="print csh commands to deactivate the environment",
)
shells.add_argument(
"--fish",
action="store_const",
dest="shell",
const="fish",
help="print fish commands to activate the environment",
)
shells.add_argument(
"--bat",
action="store_const",
dest="shell",
const="bat",
help="print bat commands to activate the environment",
)
def env_deactivate(args):
if not args.shell:
spack.cmd.common.shell_init_instructions(
"spack env deactivate", " eval `spack env deactivate {sh_arg}`"
)
return 1
# Error out when -e, -E, -D flags are given, cause they are ambiguous.
if args.env or args.no_env or args.env_dir:
tty.die("Calling spack env deactivate with --env, --env-dir and --no-env " "is ambiguous")
if ev.active_environment() is None:
tty.die("No environment is currently active.")
cmds = spack.environment.shell.deactivate_header(args.shell)
env_mods = spack.environment.shell.deactivate()
cmds += env_mods.shell_modifications(args.shell)
sys.stdout.write(cmds)
#
# env create
#
def env_create_setup_parser(subparser):
"""create a new environment"""
subparser.add_argument("create_env", metavar="env", help="name of environment to create")
subparser.add_argument(
"-d", "--dir", action="store_true", help="create an environment in a specific directory"
)
subparser.add_argument(
"--keep-relative",
action="store_true",
help="copy relative develop paths verbatim into the new environment"
" when initializing from envfile",
)
view_opts = subparser.add_mutually_exclusive_group()
view_opts.add_argument(
"--without-view", action="store_true", help="do not maintain a view for this environment"
)
view_opts.add_argument(
"--with-view",
help="specify that this environment should maintain a view at the"
" specified path (by default the view is maintained in the"
" environment directory)",
)
subparser.add_argument(
"envfile",
nargs="?",
default=None,
help="optional init file; can be spack.yaml or spack.lock",
)
def env_create(args):
if args.with_view:
# Expand relative paths provided on the command line to the current working directory
# This way we interpret `spack env create --with-view ./view --dir ./env` as
# a view in $PWD/view, not $PWD/env/view. This is different from specifying a relative
# path in spack.yaml, which is resolved relative to the environment file.
with_view = os.path.abspath(args.with_view)
elif args.without_view:
with_view = False
else:
# Note that 'None' means unspecified, in which case the Environment
# object could choose to enable a view by default. False means that
# the environment should not include a view.
with_view = None
_env_create(
args.create_env,
init_file=args.envfile,
dir=args.dir,
with_view=with_view,
keep_relative=args.keep_relative,
)
def _env_create(name_or_path, *, init_file=None, dir=False, with_view=None, keep_relative=False):
"""Create a new environment, with an optional yaml description.
Arguments:
name_or_path (str): name of the environment to create, or path to it
init_file (str or file): optional initialization file -- can be
spack.yaml or spack.lock
dir (bool): if True, create an environment in a directory instead
of a named environment
keep_relative (bool): if True, develop paths are copied verbatim into
the new environment file, otherwise they may be made absolute if the
new environment is in a different location
"""
if not dir:
env = ev.create(
name_or_path, init_file=init_file, with_view=with_view, keep_relative=keep_relative
)
tty.msg("Created environment '%s' in %s" % (name_or_path, env.path))
tty.msg("You can activate this environment with:")
tty.msg(" spack env activate %s" % (name_or_path))
return env
env = ev.create_in_dir(
name_or_path, init_file=init_file, with_view=with_view, keep_relative=keep_relative
)
tty.msg("Created environment in %s" % env.path)
tty.msg("You can activate this environment with:")
tty.msg(" spack env activate %s" % env.path)
return env
#
# env remove
#
def env_remove_setup_parser(subparser):
"""remove an existing environment"""
subparser.add_argument("rm_env", metavar="env", nargs="+", help="environment(s) to remove")
arguments.add_common_arguments(subparser, ["yes_to_all"])
def env_remove(args):
"""Remove a *named* environment.
This removes an environment managed by Spack. Directory environments
and `spack.yaml` files embedded in repositories should be removed
manually.
"""
read_envs = []
for env_name in args.rm_env:
env = ev.read(env_name)
read_envs.append(env)
if not args.yes_to_all:
answer = tty.get_yes_or_no(
"Really remove %s %s?"
% (
string.plural(len(args.rm_env), "environment", show_n=False),
string.comma_and(args.rm_env),
),
default=False,
)
if not answer:
tty.die("Will not remove any environments")
for env in read_envs:
if env.active:
tty.die("Environment %s can't be removed while activated." % env.name)
env.destroy()
tty.msg("Successfully removed environment '%s'" % env.name)
#
# env list
#
def env_list_setup_parser(subparser):
"""list available environments"""
def env_list(args):
names = ev.all_environment_names()
color_names = []
for name in names:
if ev.active(name):
name = colorize("@*g{%s}" % name)
color_names.append(name)
# say how many there are if writing to a tty
if sys.stdout.isatty():
if not names:
tty.msg("No environments")
else:
tty.msg("%d environments" % len(names))
colify(color_names, indent=4)
class ViewAction(object):
regenerate = "regenerate"
enable = "enable"
disable = "disable"
@staticmethod
def actions():
return [ViewAction.regenerate, ViewAction.enable, ViewAction.disable]
#
# env view
#
def env_view_setup_parser(subparser):
"""manage a view associated with the environment"""
subparser.add_argument(
"action", choices=ViewAction.actions(), help="action to take for the environment's view"
)
subparser.add_argument(
"view_path", nargs="?", help="when enabling a view, optionally set the path manually"
)
def env_view(args):
env = ev.active_environment()
if not env:
tty.msg("No active environment")
return
if args.action == ViewAction.regenerate:
env.regenerate_views()
elif args.action == ViewAction.enable:
if args.view_path:
view_path = args.view_path
else:
view_path = env.view_path_default
env.update_default_view(view_path)
env.write()
elif args.action == ViewAction.disable:
env.update_default_view(path_or_bool=False)
env.write()
#
# env status
#
def env_status_setup_parser(subparser):
"""print whether there is an active environment"""
def env_status(args):
env = ev.active_environment()
if env:
if env.path == os.getcwd():
tty.msg("Using %s in current directory: %s" % (ev.manifest_name, env.path))
else:
tty.msg("In environment %s" % env.name)
# Check if environment views can be safely activated
env.check_views()
else:
tty.msg("No active environment")
#
# env loads
#
def env_loads_setup_parser(subparser):
"""list modules for an installed environment '(see spack module loads)'"""
subparser.add_argument(
"-n",
"--module-set-name",
default="default",
help="module set for which to generate load operations",
)
subparser.add_argument(
"-m",
"--module-type",
choices=("tcl", "lmod"),
help="type of module system to generate loads for",
)
spack.cmd.modules.add_loads_arguments(subparser)
def env_loads(args):
env = spack.cmd.require_active_env(cmd_name="env loads")
# Set the module types that have been selected
module_type = args.module_type
if module_type is None:
# If no selection has been made select all of them
module_type = "tcl"
recurse_dependencies = args.recurse_dependencies
args.recurse_dependencies = False
loads_file = fs.join_path(env.path, "loads")
with open(loads_file, "w") as f:
specs = env._get_environment_specs(recurse_dependencies=recurse_dependencies)
spack.cmd.modules.loads(module_type, specs, args, f)
print("To load this environment, type:")
print(" source %s" % loads_file)
def env_update_setup_parser(subparser):
"""update environments to the latest format"""
subparser.add_argument(
metavar="env", dest="update_env", help="name or directory of the environment to activate"
)
spack.cmd.common.arguments.add_common_arguments(subparser, ["yes_to_all"])
def env_update(args):
manifest_file = ev.manifest_file(args.update_env)
backup_file = manifest_file + ".bkp"
needs_update = not ev.is_latest_format(manifest_file)
if not needs_update:
tty.msg('No update needed for the environment "{0}"'.format(args.update_env))
return
proceed = True
if not args.yes_to_all:
msg = (
'The environment "{0}" is going to be updated to the latest '
"schema format.\nIf the environment is updated, versions of "
"Spack that are older than this version may not be able to "
"read it. Spack stores backups of the updated environment "
'which can be retrieved with "spack env revert"'
)
tty.msg(msg.format(args.update_env))
proceed = tty.get_yes_or_no("Do you want to proceed?", default=False)
if not proceed:
tty.die("Operation aborted.")
ev.update_yaml(manifest_file, backup_file=backup_file)
msg = 'Environment "{0}" has been updated [backup={1}]'
tty.msg(msg.format(args.update_env, backup_file))
def env_revert_setup_parser(subparser):
"""restore environments to their state before update"""
subparser.add_argument(
metavar="env", dest="revert_env", help="name or directory of the environment to activate"
)
spack.cmd.common.arguments.add_common_arguments(subparser, ["yes_to_all"])
def env_revert(args):
manifest_file = ev.manifest_file(args.revert_env)
backup_file = manifest_file + ".bkp"
# Check that both the spack.yaml and the backup exist, the inform user
# on what is going to happen and ask for confirmation
if not os.path.exists(manifest_file):
msg = "cannot fine the manifest file of the environment [file={0}]"
tty.die(msg.format(manifest_file))
if not os.path.exists(backup_file):
msg = "cannot find the old manifest file to be restored [file={0}]"
tty.die(msg.format(backup_file))
proceed = True
if not args.yes_to_all:
msg = (
"Spack is going to overwrite the current manifest file"
" with a backup copy [manifest={0}, backup={1}]"
)
tty.msg(msg.format(manifest_file, backup_file))
proceed = tty.get_yes_or_no("Do you want to proceed?", default=False)
if not proceed:
tty.die("Operation aborted.")
shutil.copy(backup_file, manifest_file)
os.remove(backup_file)
msg = 'Environment "{0}" reverted to old state'
tty.msg(msg.format(manifest_file))
def env_depfile_setup_parser(subparser):
"""generate a depfile from the concrete environment specs"""
subparser.add_argument(
"--make-prefix",
"--make-target-prefix",
default=None,
metavar="TARGET",
help="prefix Makefile targets (and variables) with <TARGET>/<name>. By default "
"the absolute path to the directory makedeps under the environment metadata dir is "
"used. Can be set to an empty string --make-prefix ''.",
)
subparser.add_argument(
"--make-disable-jobserver",
default=True,
action="store_false",
dest="jobserver",
help="disable POSIX jobserver support.",
)
subparser.add_argument(
"--use-buildcache",
dest="use_buildcache",
type=arguments.use_buildcache,
default="package:auto,dependencies:auto",
metavar="[{auto,only,never},][package:{auto,only,never},][dependencies:{auto,only,never}]",
help="When using `only`, redundant build dependencies are pruned from the DAG. "
"This flag is passed on to the generated spack install commands.",
)
subparser.add_argument(
"-o",
"--output",
default=None,
metavar="FILE",
help="write the depfile to FILE rather than to stdout",
)
subparser.add_argument(
"-G",
"--generator",
default="make",
choices=("make",),
help="specify the depfile type. Currently only make is supported.",
)
subparser.add_argument(
metavar="specs",
dest="specs",
nargs=argparse.REMAINDER,
default=None,
help="generate a depfile only for matching specs in the environment",
)
def env_depfile(args):
# Currently only make is supported.
spack.cmd.require_active_env(cmd_name="env depfile")
# What things do we build when running make? By default, we build the
# root specs. If specific specs are provided as input, we build those.
filter_specs = spack.cmd.parse_specs(args.specs) if args.specs else None
template = spack.tengine.make_environment().get_template(os.path.join("depfile", "Makefile"))
model = depfile.MakefileModel.from_env(
ev.active_environment(),
filter_specs=filter_specs,
pkg_buildcache=depfile.UseBuildCache.from_string(args.use_buildcache[0]),
dep_buildcache=depfile.UseBuildCache.from_string(args.use_buildcache[1]),
make_prefix=args.make_prefix,
jobserver=args.jobserver,
)
makefile = template.render(model.to_dict())
# Finally write to stdout/file.
if args.output:
with open(args.output, "w") as f:
f.write(makefile)
else:
sys.stdout.write(makefile)
#: Dictionary mapping subcommand names and aliases to functions
subcommand_functions = {}
#
# spack env
#
def setup_parser(subparser):
sp = subparser.add_subparsers(metavar="SUBCOMMAND", dest="env_command")
for name in subcommands:
if isinstance(name, (list, tuple)):
name, aliases = name[0], name[1:]
else:
aliases = []
# add commands to subcommands dict
function_name = "env_%s" % name
function = globals()[function_name]
for alias in [name] + aliases:
subcommand_functions[alias] = function
# make a subparser and run the command's setup function on it
setup_parser_cmd_name = "env_%s_setup_parser" % name
setup_parser_cmd = globals()[setup_parser_cmd_name]
subsubparser = sp.add_parser(name, aliases=aliases, help=setup_parser_cmd.__doc__)
setup_parser_cmd(subsubparser)
def env(parser, args):
"""Look for a function called environment_<name> and call it."""
action = subcommand_functions[args.env_command]
action(args)
|