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
| | ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021-2024 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2023 Janneke Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2024 Nicolas Graves <ngraves@ngraves.fr>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix scripts shell)
#:use-module (guix ui)
#:use-module ((guix diagnostics) #:select (location))
#:use-module (guix scripts environment)
#:autoload (guix scripts build) (show-build-options-help
show-native-build-options-help)
#:autoload (guix transformations) (options->transformation
transformation-option-key?
cacheable-transformation-option-key?
show-transformation-options-help)
#:autoload (guix grafts) (%graft?)
#:use-module (guix scripts)
#:use-module (guix packages)
#:use-module (guix profiles)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-37)
#:use-module (srfi srfi-71)
#:use-module (ice-9 match)
#:autoload (ice-9 rdelim) (read-line)
#:autoload (guix base32) (bytevector->base32-string)
#:autoload (rnrs bytevectors) (string->utf8)
#:autoload (guix utils) (cache-directory data-directory)
#:autoload (guix describe) (current-channels)
#:autoload (guix channels) (channel-commit)
#:autoload (gcrypt hash) (sha256)
#:use-module ((guix build utils) #:select (mkdir-p))
#:use-module (guix cache)
#:use-module ((ice-9 ftw) #:select (scandir))
#:autoload (ice-9 pretty-print) (pretty-print)
#:autoload (ice-9 textual-ports) (get-string-all)
#:autoload (gcrypt hash) (port-sha256)
#:autoload (guix rpm) (bytevector->hex-string)
#:autoload (gnu packages) (cache-is-authoritative?
package-unique-version-prefix
specification->package
specification->package+output
specifications->manifest)
#:export (guix-shell))
(define (show-help)
(display (G_ "Usage: guix shell [OPTION] PACKAGES... [-- COMMAND...]
Build an environment that includes PACKAGES and execute COMMAND or an
interactive shell in that environment.\n"))
(newline)
;; These two options differ from 'guix environment'.
(display (G_ "
-D, --development include the development inputs of the next package"))
(display (G_ "
-f, --file=FILE add to the environment the package FILE evaluates to"))
(display (G_ "
-q inhibit loading of 'guix.scm' and 'manifest.scm'"))
(display (G_ "
--rebuild-cache rebuild cached environment, if any"))
(display (G_ "
--export-manifest print a manifest for the given options"))
(display (G_ "
-F, --emulate-fhs for containers, emulate the Filesystem Hierarchy
Standard (FHS)"))
(display (G_ "
--allow allow automatic loading of 'guix.scm' and 'manifest.scm'"))
(display (G_ "
--deny revoke automatic loading of 'guix.scm' and 'manifest.scm'"))
(show-environment-options-help)
(newline)
(show-build-options-help)
(newline)
(show-native-build-options-help)
(newline)
(show-transformation-options-help)
(newline)
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-V, --version display version information and exit"))
(newline)
(show-bug-report-information))
(define (tag-package-arg opts arg)
"Return a two-element list with the form (TAG ARG) that tags ARG with either
'ad-hoc' in OPTS has the 'ad-hoc?' key set to #t, or 'inputs' otherwise."
(if (assoc-ref opts 'ad-hoc?)
`(ad-hoc-package ,arg)
`(package ,arg)))
(define (ensure-ad-hoc alist)
(if (assq-ref alist 'ad-hoc?)
alist
`((ad-hoc? . #t) ,@alist)))
(define (wrapped-option opt)
"Wrap OPT, a SRFI-37 option, such that its processor always adds the
'ad-hoc?' flag to the resulting alist."
(option (option-names opt)
(option-required-arg? opt)
(option-optional-arg? opt)
(compose ensure-ad-hoc (option-processor opt))))
(define %options
;; Specification of the command-line options.
(let ((to-remove '("ad-hoc" "inherit" "load" "help" "version")))
(append
(list (option '(#\h "help") #f #f
(lambda args
(leave-on-EPIPE (show-help))
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix shell")))
(option '(#\D "development") #f #f
(lambda (opt name arg result)
;; Temporarily remove the 'ad-hoc?' flag from result.
;; The next option will put it back thanks to
;; 'wrapped-option'.
(alist-delete 'ad-hoc? result)))
(option '("export-manifest") #f #f
(lambda (opt name arg result)
(alist-cons 'export-manifest? #t result)))
;; For consistency with 'guix package', support '-f' rather than
;; '-l' like 'guix environment' does.
(option '(#\f "file") #t #f
(lambda (opt name arg result)
(alist-cons 'load (tag-package-arg result arg)
(ensure-ad-hoc result))))
(option '(#\q) #f #f
(lambda (opt name arg result)
(alist-cons 'explicit-loading? #t result)))
(option '("rebuild-cache") #f #f
(lambda (opt name arg result)
(alist-cons 'rebuild-cache? #t result)))
(option '(#\F "emulate-fhs") #f #f
(lambda (opt name arg result)
(alist-cons 'emulate-fhs? #t result)))
(option '("allow") #f #f
(lambda (opt name arg result)
(alist-cons 'allow "allow" result)))
(option '("deny") #f #f
(lambda (opt name arg result)
(alist-cons 'deny "deny" result))))
(filter-map (lambda (opt)
(and (not (any (lambda (name)
(member name to-remove))
(option-names opt)))
(wrapped-option opt)))
%environment-options))))
(define %default-options
`((ad-hoc? . #t) ;always true
,@%environment-default-options))
(define (parse-args args)
"Parse the list of command line arguments ARGS."
(define (handle-argument arg result)
(alist-cons 'package (tag-package-arg result arg)
(ensure-ad-hoc result)))
;; The '--' token is used to separate the command to run from the rest of
;; the operands.
(let ((args command (break (cut string=? "--" <>) args)))
(let* ((args-parsed (parse-command-line args %options (list %default-options)
#:argument-handler handle-argument))
;; For an FHS-container, add the (hidden) package glibc-for-fhs
;; which uses the global cache at /etc/ld.so.cache. We handle
;; adding this package here to ensure it will always appear in the
;; container as it is the first package in OPTS.
(opts (if (assoc-ref args-parsed 'emulate-fhs?)
(alist-cons 'expression
'(ad-hoc-package
"(@@ (gnu packages base) glibc-for-fhs)")
args-parsed)
args-parsed)))
(options-with-caching
(auto-detect-manifest
(match command
(() opts)
(("--") opts)
(("--" command ...) (alist-cons 'exec command opts))))))))
(define (shell-file-hash file)
"Returns a unique hash for FILE."
(let* ((abs-path (canonicalize-path file))
(content (call-with-input-file abs-path get-string-all)))
(call-with-input-string (string-append abs-path "\n" content)
(compose bytevector->hex-string port-sha256))))
(define (shell-permission path)
"Returns the current permission of file at PATH ('allow, 'deny or 'unknown)
and its file-hash."
(define (is-valid? file-path)
(and (file-exists? file-path)
(string=? (string-trim-right
(call-with-input-file file-path get-string-all))
(canonicalize-path path))))
(catch 'system-error
(lambda ()
(let* ((file-hash (shell-file-hash path))
(database (string-append (data-directory) "/shell/")))
(cond
((is-valid? (string-append database "deny/" file-hash))
(values 'deny file-hash))
((is-valid? (string-append database "allow/" file-hash))
(values 'allow file-hash))
(else
(values 'unknown file-hash)))))
(const (values #f #f))))
(define (database-do! target-type path)
"Allows or revokes (depending on TARGET-TYPE value) guix shell automatic
loading for the file at PATH."
(let ((type file-hash (shell-permission path))
(origin-type (match target-type
('allow 'deny)
('deny 'allow)))
(database (string-append (data-directory) "/shell/")))
(unless (file-exists? (string-append database "/allow/"))
(mkdir-p (string-append database "/allow/"))
(mkdir-p (string-append database "/deny/")))
(match type
((? (cut eq? origin-type <>))
(let ((old-file (string-append
database (symbol->string origin-type) "/" file-hash)))
(copy-file
old-file
(string-append database (symbol->string target-type) "/" file-hash))
(delete-file old-file)
(match target-type
('allow (info (G_ "'~a' allowed!~%") path))
('deny (info (G_ "'~a' denied!~%") path)))))
((? (cut eq? target-type <>))
(match target-type
('allow (info (G_ "'~a' is already allowed!~%") path))
('deny (info (G_ "'~a' is already denied!~%") path))))
('unknown
(call-with-output-file
(string-append database (symbol->string target-type) "/" file-hash)
(cut display (canonicalize-path path) <>))
(match target-type
('allow (info (G_ "'~a' allowed!~%") path))
('deny (info (G_ "'~a' denied!~%") path)))))))
(define (find-file-in-parent-directories candidates)
"Find one of CANDIDATES in the current directory or one of its ancestors."
(define start (getcwd))
(define device (stat:dev (stat start)))
(let loop ((directory start))
(let ((stat (stat directory)))
(and (= (stat:uid stat) (getuid))
(= (stat:dev stat) device)
(or (any (lambda (candidate)
(let ((candidate (string-append directory "/" candidate)))
(and (file-exists? candidate) candidate)))
candidates)
(and (not (string=? directory "/"))
(loop (dirname directory)))))))) ;lexical ".." resolution
(define (authorized-shell-file? file)
"Return true if FILE is among the authorized files for automatic loading."
(and=> (shell-permission file) (cut eq? 'allow <>)))
(define (options-with-caching opts)
"If OPTS contains only options that allow us to compute a cache key,
automatically add a 'profile' key (when a profile for that file is already in
cache) or a 'gc-root' key (to add the profile to cache)."
;; Attempt to compute a file name for use as the cached profile GC root.
(let* ((root timestamp (profile-cached-gc-root opts))
(stat (and root (false-if-exception (lstat root)))))
(if (and (not (assoc-ref opts 'rebuild-cache?))
stat
(<= timestamp (stat:mtime stat)))
(let ((now (current-time)))
;; Update the atime on ROOT to reflect usage.
(utime root
now (stat:mtime stat) 0 (stat:mtimensec stat)
AT_SYMLINK_NOFOLLOW)
(alist-cons 'profile root
(remove (match-lambda
(('load . _) #t)
(('manifest . _) #t)
(('package . _) #t)
(('ad-hoc-package . _) #t)
(_ #f))
opts))) ;load right away
(if (and root (not (assq-ref opts 'gc-root)))
(begin
(if stat
(delete-file root)
(mkdir-p (dirname root)))
(alist-cons 'gc-root root opts))
opts))))
(define (auto-detect-manifest opts)
"If OPTS do not specify packages or a manifest, load a \"guix.scm\" or
\"manifest.scm\" file from the current directory or one of its ancestors.
Return the modified OPTS."
(define (options-contain-payload? opts)
(match opts
(() #f)
((('package . _) . _) #t)
((('load . _) . _) #t)
((('manifest . _) . _) #t)
((('profile . _) . _) #t)
((('expression . _) . _) #t)
((_ . rest) (options-contain-payload? rest))))
(define interactive?
(not (assoc-ref opts 'exec)))
(define disallow-implicit-load?
(assoc-ref opts 'explicit-loading?))
(if (or (not interactive?)
disallow-implicit-load?
(assoc-ref opts 'allow)
(assoc-ref opts 'deny)
(options-contain-payload? opts))
opts
(match (find-file-in-parent-directories '("manifest.scm" "guix.scm"))
(#f
(warning (G_ "no packages specified; creating an empty environment~%"))
opts)
(file
(if (authorized-shell-file? file)
(begin
(info (G_ "loading environment from '~a'...~%") file)
(match (basename file)
("guix.scm" (alist-cons 'load `(package ,file) opts))
("manifest.scm" (alist-cons 'manifest file opts))))
(begin
(report-error
(G_ "not loading '~a' because not authorized to do so~%")
file)
(display-hint (G_ "To allow automatic loading of
@file{~a} when running @command{guix shell}, you must explicitly authorize its
directory, like so:
@example
guix shell --allow
@end example\n")
file)
(exit 1)))))))
\f
;;;
;;; Profile cache.
;;;
(define %profile-cache-directory
;; Directory where profiles created by 'guix shell' alone (without extra
;; options) are cached.
(make-parameter (string-append (cache-directory #:ensure? #f)
"/profiles")))
(define (profile-cache-primary-key)
"Return the \"primary key\" used when computing keys for the profile cache.
Return #f if no such key can be obtained and caching cannot be
performed--e.g., because the package cache is not authoritative."
(and (cache-is-authoritative?)
(match (current-channels)
(()
#f)
(((= channel-commit commits) ...)
(string-join commits)))))
(define (profile-file-cache-key file system)
"Return the cache key for the profile corresponding to FILE, a 'guix.scm' or
'manifest.scm' file, or #f if we lack channel information."
(match (profile-cache-primary-key)
(#f #f)
(primary-key
(let ((stat (stat file)))
(bytevector->base32-string
;; Since FILE is not canonicalized, only include the device/inode
;; numbers. XXX: In some rare cases involving Btrfs and NFS, this can
;; be insufficient: <https://lwn.net/Articles/866582/>.
(sha256 (string->utf8
(string-append primary-key ":" system ":"
(if (%graft?) "" "ungrafted:")
(number->string (stat:dev stat)) ":"
(number->string (stat:ino stat))))))))))
(define (profile-spec-cache-key specs system)
"Return the cache key corresponding to SPECS built for SYSTEM, where SPECS
is a list of package specs. Return #f if caching is not possible."
(match (profile-cache-primary-key)
(#f #f)
(primary-key
(bytevector->base32-string
(sha256 (string->utf8
(string-append primary-key ":" system ":"
(if (%graft?) "" "ungrafted:")
(object->string specs))))))))
(define (profile-cached-gc-root opts)
"Return two values: the file name of a GC root for use as a profile cache
for the options in OPTS, and a timestamp which, if greater than the GC root's
mtime, indicates that the GC root is stale. If OPTS do not permit caching,
return #f and #f."
(define (key->file key)
(string-append (%profile-cache-directory) "/" key))
;; A given key such as 'system might appear more than once in OPTS, so
;; process it backwards so the last occurrence "wins".
(let loop ((opts (reverse opts))
(system (%current-system))
(file #f)
(specs '()))
(match opts
(()
(if file
(values (and=> (profile-file-cache-key file system) key->file)
(stat:mtime (stat file)))
(values (and=> (profile-spec-cache-key specs system) key->file)
0)))
(((and spec ('package . _)) . rest)
(if (not file)
(loop rest system file (cons spec specs))
(values #f #f)))
((('nesting? . #t) . rest)
(loop rest system file (append specs '("nested guix"))))
((('load . ('package candidate)) . rest)
;; This is 'guix shell -D -f guix.scm'.
(if (and (not file) (null? specs))
(loop rest system candidate specs)
(values #f #f)))
((('load . ('ad-hoc-package candidate)) . rest)
;; When running 'guix shell -f guix.scm', one typically expects
;; 'guix.scm' to be evaluated every time because it may contain
;; references like (local-file "." #:recursive? #t). Thus, disable
;; caching.
(values #f #f))
((('manifest . candidate) . rest)
(if (and (not file) (null? specs))
(loop rest system candidate specs)
(values #f #f)))
((('expression . _) . _)
;; Arbitrary expressions might be non-deterministic or otherwise depend
;; on external state so do not cache when they're used.
(values #f #f))
((((? transformation-option-key? key) . _) . rest)
;; Transformation options are potentially "non-deterministic", or at
;; least depending on external state (with-source, with-commit, etc.).
;; Cache only those that are known to be "cacheable".
(if (cacheable-transformation-option-key? key)
(loop rest system file (cons (first opts) specs))
(values #f #f)))
((('profile . _) . _)
;; If the user already specified a profile, there's nothing more to
;; cache.
(values #f #f))
((('export-manifest? . #t) . _)
;; When exporting a manifest, compute it anew so that '-D' packages
;; lead to 'package-development-manifest' expressions rather than an
;; expanded list of inputs.
(values #f #f))
((('system . system) . rest)
(loop rest system file specs))
((_ . rest) (loop rest system file specs)))))
\f
;;;
;;; Exporting a manifest.
;;;
(define (manifest-entry-version-prefix entry)
"Search among all the versions of ENTRY's package that are available, and
return the shortest unambiguous version prefix for this package."
(package-unique-version-prefix (manifest-entry-name entry)
(manifest-entry-version entry)))
(define (manifest->code* manifest extra-manifests)
"Like 'manifest->code', but insert a 'concatenate-manifests' call that
concatenates MANIFESTS, a list of expressions."
(if (null? (manifest-entries manifest))
(match extra-manifests
((one) one)
(lst `(concatenate-manifests (list ,@extra-manifests))))
(match (manifest->code manifest
#:entry-package-version
manifest-entry-version-prefix)
(('begin exp ... last)
`(begin
,@exp
,(match extra-manifests
(() last)
(_ `(concatenate-manifests
(list ,last ,@extra-manifests)))))))))
(define (export-manifest opts port)
"Write to PORT a manifest corresponding to OPTS."
(define (manifest-lift proc)
(lambda (entry)
(match (manifest-entry-item entry)
((? package? p)
(manifest-entry
(inherit (package->manifest-entry (proc p)))
(output (manifest-entry-output entry))))
(_
entry))))
(define (validated-spec spec)
;; Return SPEC if it's a valid package spec.
(specification->package+output spec)
spec)
(let* ((transform (options->transformation opts))
(specs (reverse
(filter-map (match-lambda
(('package 'ad-hoc-package spec)
(validated-spec spec))
(_ #f))
opts)))
(extras (reverse
(filter-map (match-lambda
(('package 'package spec)
;; Make sure SPEC is valid.
(specification->package spec)
;; XXX: This is an approximation:
;; transformation options are not applied.
`(package->development-manifest
(specification->package ,spec)))
(_ #f))
opts)))
(manifest (concatenate-manifests
(cons (map-manifest-entries
(manifest-lift transform)
(specifications->manifest specs))
(filter-map (match-lambda
(('manifest . file)
(load-manifest file))
(('profile . file)
(profile-manifest file))
(_ #f))
opts)))))
(display (G_ "\
;; What follows is a \"manifest\" equivalent to the command line you gave.
;; You can store it in a file that you may then pass to any 'guix' command
;; that accepts a '--manifest' (or '-m') option.\n")
port)
(match (manifest->code* manifest extras)
(('begin exp ...)
(for-each (lambda (exp)
(newline port)
(pretty-print exp port))
exp))
(exp
(pretty-print exp port)))))
\f
;;;
;;; One-time hints.
;;;
(define (hint-directory)
"Return the directory name where previously given hints are recorded."
(string-append (cache-directory #:ensure? #f) "/hints"))
(define (hint-file hint)
"Return the name of the file that marks HINT as already printed."
(string-append (hint-directory) "/" (symbol->string hint)))
(define (record-hint hint)
"Mark HINT as already given."
(let ((file (hint-file hint)))
(mkdir-p (dirname file))
(close-fdes (open-fdes file (logior O_CREAT O_WRONLY)))))
(define (hint-given? hint)
"Return true if HINT was already given."
(file-exists? (hint-file hint)))
\f
(define-command (guix-shell . args)
(category development)
(synopsis "spawn one-off software environments")
(with-error-handling
(define (cache-entries directory)
(filter-map (match-lambda
((or "." "..") #f)
(file (string-append directory "/" file)))
(or (scandir directory) '())))
(define* (entry-expiration file)
;; Return the time at which FILE, a cached profile, is considered expired.
(match (false-if-exception (lstat file))
(#f 0) ;FILE may have been deleted in the meantime
(st (+ (stat:atime st) (* 60 60 24 7)))))
(define opts
(parse-args args))
(define interactive?
(not (assoc-ref opts 'exec)))
(if (assoc-ref opts 'check?)
(record-hint 'shell-check)
(when (and interactive?
(not (hint-given? 'shell-check))
(not (assoc-ref opts 'container?))
(not (assoc-ref opts 'search-paths)))
(display-hint (G_ "Consider passing the @option{--check} option once
to make sure your shell does not clobber environment variables."))) )
;; Clean the cache in EXIT-HOOK so that (1) it happens after potential use
;; of cached profiles, and (2) cleanup actually happens, even when
;; 'guix-environment*' calls 'exit'.
(add-hook! exit-hook
(lambda _
(maybe-remove-expired-cache-entries
(%profile-cache-directory)
cache-entries
#:entry-expiration entry-expiration)))
(if (assoc-ref opts 'export-manifest?)
(export-manifest opts (current-output-port))
(match (or (assoc-ref opts 'allow) (assoc-ref opts 'deny))
(#f
(guix-environment* opts))
(command
(match (or (assoc-ref opts 'manifest)
(find-file-in-parent-directories
'("manifest.scm" "guix.scm")))
(#f
(report-error
(G_ "no 'manifest.scm' or 'guix.scm' file to ~a~%") command)
(exit 1))
(file
(database-do! (string->symbol command) file))))))))
|