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
|
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013 Mark H Weaver <mhw@netris.org>
;;;
;;; 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 build)
#:use-module (guix ui)
#:use-module (guix store)
#:use-module (guix derivations)
#:use-module (guix packages)
#:use-module (guix utils)
#:use-module (guix monads)
#:use-module (ice-9 format)
#:use-module (ice-9 match)
#:use-module (ice-9 vlist)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-37)
#:autoload (gnu packages) (find-best-packages-by-name)
#:export (derivation-from-expression
guix-build))
(define (derivation-from-expression store str package-derivation
system source?)
"Read/eval STR and return the corresponding derivation path for SYSTEM.
When SOURCE? is true and STR evaluates to a package, return the derivation of
the package source; otherwise, use PACKAGE-DERIVATION to compute the
derivation of a package."
(match (read/eval str)
((? package? p)
(if source?
(let ((source (package-source p)))
(if source
(package-source-derivation store source)
(leave (_ "package `~a' has no source~%")
(package-name p))))
(package-derivation store p system)))
((? procedure? proc)
(run-with-store store (proc) #:system system))))
(define (specification->package spec)
"Return a package matching SPEC. SPEC may be a package name, or a package
name followed by a hyphen and a version number. If the version number is not
present, return the preferred newest version."
(let-values (((name version)
(package-name->name+version spec)))
(match (find-best-packages-by-name name version)
((p) ; one match
p)
((p x ...) ; several matches
(warning (_ "ambiguous package specification `~a'~%") spec)
(warning (_ "choosing ~a from ~a~%")
(package-full-name p)
(location->string (package-location p)))
p)
(_ ; no matches
(if version
(leave (_ "~A: package not found for version ~a~%")
name version)
(leave (_ "~A: unknown package~%") name))))))
(define (register-root store paths root)
"Register ROOT as an indirect GC root for all of PATHS."
(let* ((root (string-append (canonicalize-path (dirname root))
"/" root)))
(catch 'system-error
(lambda ()
(match paths
((path)
(symlink path root)
(add-indirect-root store root))
((paths ...)
(fold (lambda (path count)
(let ((root (string-append root
"-"
(number->string count))))
(symlink path root)
(add-indirect-root store root))
(+ 1 count))
0
paths))))
(lambda args
(leave (_ "failed to create GC root `~a': ~a~%")
root (strerror (system-error-errno args)))))))
;;;
;;; Command-line options.
;;;
(define %default-options
;; Alist of default option values.
`((system . ,(%current-system))
(substitutes? . #t)
(max-silent-time . 3600)
(verbosity . 0)))
(define (show-help)
(display (_ "Usage: guix build [OPTION]... PACKAGE-OR-DERIVATION...
Build the given PACKAGE-OR-DERIVATION and return their output paths.\n"))
(display (_ "
-e, --expression=EXPR build the package or derivation EXPR evaluates to"))
(display (_ "
-S, --source build the packages' source derivations"))
(display (_ "
-s, --system=SYSTEM attempt to build for SYSTEM--e.g., \"i686-linux\""))
(display (_ "
--target=TRIPLET cross-build for TRIPLET--e.g., \"armel-linux-gnu\""))
(display (_ "
-d, --derivations return the derivation paths of the given packages"))
(display (_ "
-K, --keep-failed keep build tree of failed builds"))
(display (_ "
-n, --dry-run do not build the derivations"))
(display (_ "
--fallback fall back to building when the substituter fails"))
(display (_ "
--no-substitutes build instead of resorting to pre-built substitutes"))
(display (_ "
--max-silent-time=SECONDS
mark the build as failed after SECONDS of silence"))
(display (_ "
-c, --cores=N allow the use of up to N CPU cores for the build"))
(display (_ "
-r, --root=FILE make FILE a symlink to the result, and register it
as a garbage collector root"))
(display (_ "
--verbosity=LEVEL use the given verbosity LEVEL"))
(display (_ "
--log-file return the log file names for the given derivations"))
(newline)
(display (_ "
-h, --help display this help and exit"))
(display (_ "
-V, --version display version information and exit"))
(newline)
(show-bug-report-information))
(define %options
;; Specifications of the command-line options.
(list (option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix build")))
(option '(#\S "source") #f #f
(lambda (opt name arg result)
(alist-cons 'source? #t result)))
(option '(#\s "system") #t #f
(lambda (opt name arg result)
(alist-cons 'system arg
(alist-delete 'system result eq?))))
(option '("target") #t #f
(lambda (opt name arg result)
(alist-cons 'target arg
(alist-delete 'target result eq?))))
(option '(#\d "derivations") #f #f
(lambda (opt name arg result)
(alist-cons 'derivations-only? #t result)))
(option '(#\e "expression") #t #f
(lambda (opt name arg result)
(alist-cons 'expression arg result)))
(option '(#\K "keep-failed") #f #f
(lambda (opt name arg result)
(alist-cons 'keep-failed? #t result)))
(option '(#\c "cores") #t #f
(lambda (opt name arg result)
(let ((c (false-if-exception (string->number arg))))
(if c
(alist-cons 'cores c result)
(leave (_ "~a: not a number~%") arg)))))
(option '(#\n "dry-run") #f #f
(lambda (opt name arg result)
(alist-cons 'dry-run? #t result)))
(option '("fallback") #f #f
(lambda (opt name arg result)
(alist-cons 'fallback? #t
(alist-delete 'fallback? result))))
(option '("no-substitutes") #f #f
(lambda (opt name arg result)
(alist-cons 'substitutes? #f
(alist-delete 'substitutes? result))))
(option '("max-silent-time") #t #f
(lambda (opt name arg result)
(alist-cons 'max-silent-time (string->number* arg)
result)))
(option '(#\r "root") #t #f
(lambda (opt name arg result)
(alist-cons 'gc-root arg result)))
(option '("verbosity") #t #f
(lambda (opt name arg result)
(let ((level (string->number arg)))
(alist-cons 'verbosity level
(alist-delete 'verbosity result)))))
(option '("log-file") #f #f
(lambda (opt name arg result)
(alist-cons 'log-file? #t result)))))
(define (options->derivations store opts)
"Given OPTS, the result of 'args-fold', return a list of derivations to
build."
(define package->derivation
(match (assoc-ref opts 'target)
(#f package-derivation)
(triplet
(cut package-cross-derivation <> <> triplet <>))))
(define src? (assoc-ref opts 'source?))
(define sys (assoc-ref opts 'system))
(filter-map (match-lambda
(('expression . str)
(derivation-from-expression store str package->derivation
sys src?))
(('argument . (? derivation-path? drv))
(call-with-input-file drv read-derivation))
(('argument . (? store-path?))
;; Nothing to do; maybe for --log-file.
#f)
(('argument . (? string? x))
(let ((p (specification->package x)))
(if src?
(let ((s (package-source p)))
(package-source-derivation store s))
(package->derivation store p sys))))
(_ #f))
opts))
;;;
;;; Entry point.
;;;
(define (guix-build . args)
(define (parse-options)
;; Return the alist of option values.
(args-fold* args %options
(lambda (opt name arg result)
(leave (_ "~A: unrecognized option~%") name))
(lambda (arg result)
(alist-cons 'argument arg result))
%default-options))
(with-error-handling
;; Ask for absolute file names so that .drv file names passed from the
;; user to 'read-derivation' are absolute when it returns.
(with-fluids ((%file-port-name-canonicalization 'absolute))
(let* ((opts (parse-options))
(store (open-connection))
(drv (options->derivations store opts))
(roots (filter-map (match-lambda
(('gc-root . root) root)
(_ #f))
opts)))
(unless (assoc-ref opts 'log-file?)
(show-what-to-build store drv
#:use-substitutes? (assoc-ref opts 'substitutes?)
#:dry-run? (assoc-ref opts 'dry-run?)))
;; TODO: Add more options.
(set-build-options store
#:keep-failed? (assoc-ref opts 'keep-failed?)
#:build-cores (or (assoc-ref opts 'cores) 0)
#:fallback? (assoc-ref opts 'fallback?)
#:use-substitutes? (assoc-ref opts 'substitutes?)
#:max-silent-time (assoc-ref opts 'max-silent-time)
#:verbosity (assoc-ref opts 'verbosity))
(cond ((assoc-ref opts 'log-file?)
(for-each (lambda (file)
(let ((log (log-file store file)))
(if log
(format #t "~a~%" log)
(leave (_ "no build log for '~a'~%")
file))))
(delete-duplicates
(append (map derivation-file-name drv)
(filter-map (match-lambda
(('argument
. (? store-path? file))
file)
(_ #f))
opts)))))
((assoc-ref opts 'derivations-only?)
(format #t "~{~a~%~}" (map derivation-file-name drv))
(for-each (cut register-root store <> <>)
(map (compose list derivation-file-name) drv)
roots))
((not (assoc-ref opts 'dry-run?))
(and (build-derivations store drv)
(for-each (lambda (d)
(format #t "~{~a~%~}"
(map (match-lambda
((out-name . out)
(derivation->output-path
d out-name)))
(derivation-outputs d))))
drv)
(for-each (cut register-root store <> <>)
(map (lambda (drv)
(map cdr
(derivation->output-paths drv)))
drv)
roots))))))))
|