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
|
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.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 pull)
#:use-module (guix ui)
#:use-module (guix store)
#:use-module (guix config)
#:use-module (guix packages)
#:use-module (guix derivations)
#:use-module (guix download)
#:use-module (guix gexp)
#:use-module (guix monads)
#:use-module ((guix build utils)
#:select (with-directory-excursion delete-file-recursively))
#:use-module (gnu packages base)
#:use-module (gnu packages guile)
#:use-module ((gnu packages bootstrap)
#:select (%bootstrap-guile))
#:use-module (gnu packages compression)
#:use-module (gnu packages gnupg)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:use-module (srfi srfi-37)
#:use-module (ice-9 ftw)
#:use-module (ice-9 match)
#:export (guix-pull))
(define %snapshot-url
;; "http://hydra.gnu.org/job/guix/master/tarball/latest/download"
"http://git.savannah.gnu.org/cgit/guix.git/snapshot/guix-master.tar.gz"
)
(define-syntax-rule (with-environment-variable variable value body ...)
(let ((original (getenv variable)))
(dynamic-wind
(lambda ()
(setenv variable value))
(lambda ()
body ...)
(lambda ()
(setenv variable original)))))
(define-syntax-rule (with-PATH value body ...)
(with-environment-variable "PATH" value body ...))
;;;
;;; Command-line options.
;;;
(define %default-options
;; Alist of default option values.
`((tarball-url . ,%snapshot-url)))
(define (show-help)
(display (_ "Usage: guix pull [OPTION]...
Download and deploy the latest version of Guix.\n"))
(display (_ "
--verbose produce verbose output"))
(display (_ "
--url=URL download the Guix tarball from URL"))
(display (_ "
--bootstrap use the bootstrap Guile to build the new Guix"))
(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 '("verbose") #f #f
(lambda (opt name arg result)
(alist-cons 'verbose? #t result)))
(option '("url") #t #f
(lambda (opt name arg result)
(alist-cons 'tarball-url arg
(alist-delete 'tarball-url result))))
(option '("bootstrap") #f #f
(lambda (opt name arg result)
(alist-cons 'bootstrap? #t result)))
(option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix pull")))))
(define what-to-build
(store-lift show-what-to-build))
(define indirect-root-added
(store-lift add-indirect-root))
(define (temporary-directory)
"Make a temporary directory and return its name."
(let ((name (tmpnam)))
(mkdir name)
(chmod name #o700)
name))
(define (first-directory directory)
"Return a the name of the first file found under DIRECTORY."
(match (scandir directory
(lambda (name)
(and (not (member name '("." "..")))
(file-is-directory? name))))
((directory)
directory)
(x
(raise (condition
(&message
(message "tarball did not produce a single source directory")))))))
(define (interned-then-deleted directory name)
"Add DIRECTORY to the store under NAME, and delete it. Return the resulting
store file name."
(mlet %store-monad ((result (interned-file directory name
#:recursive? #t)))
(delete-file-recursively directory)
(return result)))
(define (unpack tarball)
"Return the name of the directory where TARBALL has been unpacked."
(mlet* %store-monad ((format -> (lift format %store-monad))
(tar (package->derivation tar))
(gzip (package->derivation gzip)))
(mbegin %store-monad
(what-to-build (list tar gzip))
(built-derivations (list tar gzip))
(format #t (_ "unpacking '~a'...~%") tarball)
(let ((source (temporary-directory)))
(with-directory-excursion source
(with-PATH (string-append (derivation->output-path gzip) "/bin")
(unless (zero? (system* (string-append (derivation->output-path tar)
"/bin/tar")
"xf" tarball))
(raise (condition
(&message (message "failed to unpack source code"))))))
(interned-then-deleted (string-append source "/"
(first-directory source))
"guix-source"))))))
(define %self-build-file
;; The file containing code to build Guix. This serves the same purpose as
;; a makefile, and, similarly, is intended to always keep this name.
"build-aux/build-self.scm")
(define* (build-from-source tarball #:key verbose?)
"Return a derivation to build Guix from TARBALL, using the self-build script
contained therein."
;; Running the self-build script makes it easier to update the build
;; procedure: the self-build script of the Guix-to-be-installed contains the
;; right dependencies, build procedure, etc., which the Guix-in-use may not
;; be know.
(mlet* %store-monad ((source (unpack tarball))
(script -> (string-append source "/"
%self-build-file))
(build -> (primitive-load script)))
;; BUILD must be a monadic procedure of at least one argument: the source
;; tree.
(build source #:verbose? verbose?)))
(define* (build-and-install tarball config-dir
#:key verbose?)
"Build the tool from TARBALL, and install it in CONFIG-DIR."
(mlet* %store-monad ((source (build-from-source tarball
#:verbose? verbose?))
(source-dir -> (derivation->output-path source))
(to-do? (what-to-build (list source))))
(if to-do?
(mlet* %store-monad ((built? (built-derivations (list source))))
(if built?
(mlet* %store-monad
((latest -> (string-append config-dir "/latest"))
(done (indirect-root-added latest)))
(switch-symlinks latest source-dir)
(format #t
(_ "updated ~a successfully deployed under `~a'~%")
%guix-package-name latest)
(return #t))
(leave (_ "failed to update Guix, check the build log~%"))))
(begin
(display (_ "Guix already up to date\n"))
(return #t)))))
(define (guix-pull . 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)
(leave (_ "~A: unexpected argument~%") arg))
%default-options))
(with-error-handling
(let* ((opts (parse-options))
(store (open-connection))
(url (assoc-ref opts 'tarball-url)))
(let ((tarball (download-to-store store url "guix-latest.tar.gz")))
(unless tarball
(leave (_ "failed to download up-to-date source, exiting\n")))
(parameterize ((%guile-for-build
(package-derivation store
(if (assoc-ref opts 'bootstrap?)
%bootstrap-guile
(canonical-package guile-2.0)))))
(run-with-store store
(build-and-install tarball (config-directory)
#:verbose? (assoc-ref opts 'verbose?))))))))
;; Local Variables:
;; eval: (put 'with-PATH 'scheme-indent-function 1)
;; eval: (put 'with-temporary-directory 'scheme-indent-function 1)
;; End:
;;; pull.scm ends here
|
