Commit | Line | Data |
---|---|---|
0d39a3b9 | 1 | ;;; GNU Guix --- Functional package management for GNU |
49c35bbb | 2 | ;;; Copyright © 2018, 2019 Ludovic Courtès <ludo@gnu.org> |
af12790b | 3 | ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net> |
53f21642 | 4 | ;;; Copyright © 2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org> |
0d39a3b9 LC |
5 | ;;; |
6 | ;;; This file is part of GNU Guix. | |
7 | ;;; | |
8 | ;;; GNU Guix is free software; you can redistribute it and/or modify it | |
9 | ;;; under the terms of the GNU General Public License as published by | |
10 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
11 | ;;; your option) any later version. | |
12 | ;;; | |
13 | ;;; GNU Guix is distributed in the hope that it will be useful, but | |
14 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | ;;; GNU General Public License for more details. | |
17 | ;;; | |
18 | ;;; You should have received a copy of the GNU General Public License | |
19 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. | |
20 | ||
21 | (define-module (guix channels) | |
22 | #:use-module (guix git) | |
23 | #:use-module (guix records) | |
24 | #:use-module (guix gexp) | |
5fbdc9a5 | 25 | #:use-module (guix modules) |
0d39a3b9 LC |
26 | #:use-module (guix discovery) |
27 | #:use-module (guix monads) | |
28 | #:use-module (guix profiles) | |
29 | #:use-module (guix derivations) | |
f58f676b | 30 | #:use-module (guix combinators) |
69962ab7 | 31 | #:use-module (guix diagnostics) |
0d39a3b9 LC |
32 | #:use-module (guix store) |
33 | #:use-module (guix i18n) | |
ab6025b5 LC |
34 | #:use-module ((guix utils) |
35 | #:select (source-properties->location | |
36 | &error-location)) | |
0d39a3b9 | 37 | #:use-module (srfi srfi-1) |
af12790b | 38 | #:use-module (srfi srfi-2) |
0d39a3b9 LC |
39 | #:use-module (srfi srfi-9) |
40 | #:use-module (srfi srfi-11) | |
ab6025b5 LC |
41 | #:use-module (srfi srfi-34) |
42 | #:use-module (srfi srfi-35) | |
5fbdc9a5 LC |
43 | #:autoload (guix self) (whole-package make-config.scm) |
44 | #:autoload (guix inferior) (gexp->derivation-in-inferior) ;FIXME: circular dep | |
0d39a3b9 | 45 | #:use-module (ice-9 match) |
ed75bdf3 | 46 | #:use-module (ice-9 vlist) |
0d39a3b9 LC |
47 | #:export (channel |
48 | channel? | |
49 | channel-name | |
50 | channel-url | |
51 | channel-branch | |
52 | channel-commit | |
53 | channel-location | |
54 | ||
55 | %default-channels | |
72f749dc | 56 | guix-channel? |
0d39a3b9 LC |
57 | |
58 | channel-instance? | |
59 | channel-instance-channel | |
60 | channel-instance-commit | |
61 | channel-instance-checkout | |
62 | ||
63 | latest-channel-instances | |
fe5db4eb | 64 | checkout->channel-instance |
030f1367 | 65 | latest-channel-derivation |
c37f38bd | 66 | channel-instances->manifest |
5fbdc9a5 | 67 | %channel-profile-hooks |
a7c714d3 LC |
68 | channel-instances->derivation |
69 | ||
70 | profile-channels)) | |
0d39a3b9 LC |
71 | |
72 | ;;; Commentary: | |
73 | ;;; | |
74 | ;;; This module implements "channels." A channel is usually a source of | |
75 | ;;; package definitions. There's a special channel, the 'guix' channel, that | |
76 | ;;; provides all of Guix, including its commands and its documentation. | |
77 | ;;; User-defined channels are expected to typically provide a bunch of .scm | |
78 | ;;; files meant to be added to the '%package-search-path'. | |
79 | ;;; | |
80 | ;;; This module provides tools to fetch and update channels from a Git | |
81 | ;;; repository and to build them. | |
82 | ;;; | |
83 | ;;; Code: | |
84 | ||
85 | (define-record-type* <channel> channel make-channel | |
86 | channel? | |
87 | (name channel-name) | |
88 | (url channel-url) | |
89 | (branch channel-branch (default "master")) | |
90 | (commit channel-commit (default #f)) | |
91 | (location channel-location | |
92 | (default (current-source-location)) (innate))) | |
0d39a3b9 LC |
93 | |
94 | (define %default-channels | |
95 | ;; Default list of channels. | |
96 | (list (channel | |
97 | (name 'guix) | |
37a6cdbf | 98 | (branch "master") |
0d39a3b9 LC |
99 | (url "https://git.savannah.gnu.org/git/guix.git")))) |
100 | ||
101 | (define (guix-channel? channel) | |
102 | "Return true if CHANNEL is the 'guix' channel." | |
103 | (eq? 'guix (channel-name channel))) | |
104 | ||
105 | (define-record-type <channel-instance> | |
106 | (channel-instance channel commit checkout) | |
107 | channel-instance? | |
108 | (channel channel-instance-channel) | |
109 | (commit channel-instance-commit) | |
110 | (checkout channel-instance-checkout)) | |
111 | ||
af12790b | 112 | (define-record-type <channel-metadata> |
5d9daa85 | 113 | (channel-metadata directory dependencies) |
af12790b | 114 | channel-metadata? |
ce5d9ec8 LC |
115 | (directory channel-metadata-directory) ;string with leading slash |
116 | (dependencies channel-metadata-dependencies)) ;list of <channel> | |
af12790b | 117 | |
0d39a3b9 LC |
118 | (define (channel-reference channel) |
119 | "Return the \"reference\" for CHANNEL, an sexp suitable for | |
120 | 'latest-repository-commit'." | |
121 | (match (channel-commit channel) | |
122 | (#f `(branch . ,(channel-branch channel))) | |
123 | (commit `(commit . ,(channel-commit channel))))) | |
124 | ||
45b90332 LC |
125 | (define (read-channel-metadata port) |
126 | "Read from PORT channel metadata in the format expected for the | |
127 | '.guix-channel' file. Return a <channel-metadata> record, or raise an error | |
128 | if valid metadata could not be read from PORT." | |
129 | (match (read port) | |
130 | (('channel ('version 0) properties ...) | |
131 | (let ((directory (and=> (assoc-ref properties 'directory) first)) | |
132 | (dependencies (or (assoc-ref properties 'dependencies) '()))) | |
133 | (channel-metadata | |
ce5d9ec8 LC |
134 | (cond ((not directory) "/") |
135 | ((string-prefix? "/" directory) directory) | |
136 | (else (string-append "/" directory))) | |
45b90332 LC |
137 | (map (lambda (item) |
138 | (let ((get (lambda* (key #:optional default) | |
139 | (or (and=> (assoc-ref item key) first) default)))) | |
140 | (and-let* ((name (get 'name)) | |
141 | (url (get 'url)) | |
142 | (branch (get 'branch "master"))) | |
143 | (channel | |
144 | (name name) | |
145 | (branch branch) | |
146 | (url url) | |
147 | (commit (get 'commit)))))) | |
148 | dependencies)))) | |
149 | ((and ('channel ('version version) _ ...) sexp) | |
150 | (raise (condition | |
151 | (&message (message "unsupported '.guix-channel' version")) | |
152 | (&error-location | |
153 | (location (source-properties->location | |
154 | (source-properties sexp))))))) | |
155 | (sexp | |
156 | (raise (condition | |
157 | (&message (message "invalid '.guix-channel' file")) | |
158 | (&error-location | |
159 | (location (source-properties->location | |
160 | (source-properties sexp))))))))) | |
161 | ||
53f21642 JN |
162 | (define (read-channel-metadata-from-source source) |
163 | "Return a channel-metadata record read from channel's SOURCE/.guix-channel | |
ce5d9ec8 LC |
164 | description file, or return the default channel-metadata record if that file |
165 | doesn't exist." | |
45b90332 LC |
166 | (catch 'system-error |
167 | (lambda () | |
168 | (call-with-input-file (string-append source "/.guix-channel") | |
169 | read-channel-metadata)) | |
170 | (lambda args | |
171 | (if (= ENOENT (system-error-errno args)) | |
ce5d9ec8 | 172 | (channel-metadata "/" '()) |
45b90332 LC |
173 | (apply throw args))))) |
174 | ||
175 | (define (channel-instance-metadata instance) | |
53f21642 | 176 | "Return a channel-metadata record read from the channel INSTANCE's |
ce5d9ec8 | 177 | description file or its default value." |
53f21642 JN |
178 | (read-channel-metadata-from-source (channel-instance-checkout instance))) |
179 | ||
af12790b RW |
180 | (define (channel-instance-dependencies instance) |
181 | "Return the list of channels that are declared as dependencies for the given | |
182 | channel INSTANCE." | |
ce5d9ec8 | 183 | (channel-metadata-dependencies (channel-instance-metadata instance))) |
af12790b RW |
184 | |
185 | (define* (latest-channel-instances store channels #:optional (previous-channels '())) | |
0d39a3b9 | 186 | "Return a list of channel instances corresponding to the latest checkouts of |
af12790b RW |
187 | CHANNELS and the channels on which they depend. PREVIOUS-CHANNELS is a list |
188 | of previously processed channels." | |
189 | ;; Only process channels that are unique, or that are more specific than a | |
190 | ;; previous channel specification. | |
191 | (define (ignore? channel others) | |
192 | (member channel others | |
193 | (lambda (a b) | |
194 | (and (eq? (channel-name a) (channel-name b)) | |
195 | (or (channel-commit b) | |
196 | (not (or (channel-commit a) | |
197 | (channel-commit b)))))))) | |
f58f676b | 198 | |
af12790b RW |
199 | ;; Accumulate a list of instances. A list of processed channels is also |
200 | ;; accumulated to decide on duplicate channel specifications. | |
f58f676b LC |
201 | (define-values (resulting-channels instances) |
202 | (fold2 (lambda (channel previous-channels instances) | |
203 | (if (ignore? channel previous-channels) | |
204 | (values previous-channels instances) | |
205 | (begin | |
206 | (format (current-error-port) | |
207 | (G_ "Updating channel '~a' from Git repository at '~a'...~%") | |
208 | (channel-name channel) | |
209 | (channel-url channel)) | |
210 | (let-values (((checkout commit) | |
211 | (latest-repository-commit store (channel-url channel) | |
212 | #:ref (channel-reference | |
213 | channel)))) | |
214 | (let ((instance (channel-instance channel commit checkout))) | |
215 | (let-values (((new-instances new-channels) | |
216 | (latest-channel-instances | |
217 | store | |
218 | (channel-instance-dependencies instance) | |
219 | previous-channels))) | |
220 | (values (append (cons channel new-channels) | |
221 | previous-channels) | |
222 | (append (cons instance new-instances) | |
223 | instances)))))))) | |
224 | previous-channels | |
225 | '() ;instances | |
226 | channels)) | |
227 | ||
228 | (let ((instance-name (compose channel-name channel-instance-channel))) | |
229 | ;; Remove all earlier channel specifications if they are followed by a | |
230 | ;; more specific one. | |
231 | (values (delete-duplicates instances | |
232 | (lambda (a b) | |
233 | (eq? (instance-name a) (instance-name b)))) | |
234 | resulting-channels))) | |
0d39a3b9 | 235 | |
fe5db4eb LC |
236 | (define* (checkout->channel-instance checkout |
237 | #:key commit | |
238 | (url checkout) (name 'guix)) | |
239 | "Return a channel instance for CHECKOUT, which is assumed to be a checkout | |
240 | of COMMIT at URL. Use NAME as the channel name." | |
241 | (let* ((commit (or commit (make-string 40 #\0))) | |
242 | (channel (channel (name name) | |
243 | (commit commit) | |
244 | (url url)))) | |
245 | (channel-instance channel commit checkout))) | |
246 | ||
0d39a3b9 LC |
247 | (define %self-build-file |
248 | ;; The file containing code to build Guix. This serves the same purpose as | |
249 | ;; a makefile, and, similarly, is intended to always keep this name. | |
250 | "build-aux/build-self.scm") | |
251 | ||
252 | (define %pull-version | |
253 | ;; This is the version of the 'guix pull' protocol. It specifies what's | |
254 | ;; expected from %SELF-BUILD-FILE. The initial version ("0") was when we'd | |
255 | ;; place a set of compiled Guile modules in ~/.config/guix/latest. | |
256 | 1) | |
257 | ||
acefa740 LC |
258 | (define (standard-module-derivation name source core dependencies) |
259 | "Return a derivation that builds with CORE, a Guix instance, the Scheme | |
260 | modules in SOURCE and that depend on DEPENDENCIES, a list of lowerable | |
261 | objects. The assumption is that SOURCE contains package modules to be added | |
262 | to '%package-module-path'." | |
acefa740 | 263 | |
53f21642 | 264 | (let* ((metadata (read-channel-metadata-from-source source)) |
ce5d9ec8 | 265 | (directory (channel-metadata-directory metadata))) |
53f21642 JN |
266 | |
267 | (define build | |
268 | ;; This is code that we'll run in CORE, a Guix instance, with its own | |
269 | ;; modules and so on. That way, we make sure these modules are built for | |
270 | ;; the right Guile version, with the right dependencies, and that they get | |
271 | ;; to see the right (gnu packages …) modules. | |
272 | (with-extensions dependencies | |
273 | #~(begin | |
274 | (use-modules (guix build compile) | |
275 | (guix build utils) | |
276 | (srfi srfi-26)) | |
277 | ||
278 | (define go | |
279 | (string-append #$output "/lib/guile/" (effective-version) | |
280 | "/site-ccache")) | |
281 | (define scm | |
282 | (string-append #$output "/share/guile/site/" | |
283 | (effective-version))) | |
acefa740 | 284 | |
ce5d9ec8 | 285 | (let* ((subdir #$directory) |
53f21642 JN |
286 | (source (string-append #$source subdir))) |
287 | (compile-files source go (find-files source "\\.scm$")) | |
288 | (mkdir-p (dirname scm)) | |
289 | (symlink (string-append #$source subdir) scm)) | |
acefa740 | 290 | |
53f21642 | 291 | scm))) |
acefa740 | 292 | |
53f21642 | 293 | (gexp->derivation-in-inferior name build core))) |
0d39a3b9 LC |
294 | |
295 | (define* (build-from-source name source | |
acefa740 | 296 | #:key core verbose? commit |
0d39a3b9 LC |
297 | (dependencies '())) |
298 | "Return a derivation to build Guix from SOURCE, using the self-build script | |
acefa740 LC |
299 | contained therein; use COMMIT as the version string. When CORE is true, build |
300 | package modules under SOURCE using CORE, an instance of Guix." | |
0d39a3b9 LC |
301 | ;; Running the self-build script makes it easier to update the build |
302 | ;; procedure: the self-build script of the Guix-to-be-installed contains the | |
303 | ;; right dependencies, build procedure, etc., which the Guix-in-use may not | |
304 | ;; be know. | |
305 | (define script | |
306 | (string-append source "/" %self-build-file)) | |
307 | ||
308 | (if (file-exists? script) | |
309 | (let ((build (save-module-excursion | |
310 | (lambda () | |
3a8c4860 LC |
311 | ;; Disable deprecation warnings; it's OK for SCRIPT to |
312 | ;; use deprecated APIs and the user doesn't have to know | |
313 | ;; about it. | |
69962ab7 | 314 | (parameterize ((guix-warning-port |
3a8c4860 LC |
315 | (%make-void-port "w"))) |
316 | (primitive-load script)))))) | |
0d39a3b9 LC |
317 | ;; BUILD must be a monadic procedure of at least one argument: the |
318 | ;; source tree. | |
319 | ;; | |
320 | ;; Note: BUILD can return #f if it does not support %PULL-VERSION. In | |
321 | ;; the future we'll fall back to a previous version of the protocol | |
322 | ;; when that happens. | |
323 | (build source #:verbose? verbose? #:version commit | |
324 | #:pull-version %pull-version)) | |
325 | ||
326 | ;; Build a set of modules that extend Guix using the standard method. | |
acefa740 | 327 | (standard-module-derivation name source core dependencies))) |
0d39a3b9 | 328 | |
acefa740 LC |
329 | (define* (build-channel-instance instance |
330 | #:optional core (dependencies '())) | |
0d39a3b9 LC |
331 | "Return, as a monadic value, the derivation for INSTANCE, a channel |
332 | instance. DEPENDENCIES is a list of extensions providing Guile modules that | |
333 | INSTANCE depends on." | |
334 | (build-from-source (symbol->string | |
335 | (channel-name (channel-instance-channel instance))) | |
336 | (channel-instance-checkout instance) | |
337 | #:commit (channel-instance-commit instance) | |
acefa740 | 338 | #:core core |
0d39a3b9 LC |
339 | #:dependencies dependencies)) |
340 | ||
ed75bdf3 LC |
341 | (define (resolve-dependencies instances) |
342 | "Return a procedure that, given one of the elements of INSTANCES, returns | |
343 | list of instances it depends on." | |
344 | (define channel-instance-name | |
345 | (compose channel-name channel-instance-channel)) | |
346 | ||
347 | (define table ;map a name to an instance | |
348 | (fold (lambda (instance table) | |
349 | (vhash-consq (channel-instance-name instance) | |
350 | instance table)) | |
351 | vlist-null | |
352 | instances)) | |
353 | ||
354 | (define edges | |
355 | (fold (lambda (instance edges) | |
356 | (fold (lambda (channel edges) | |
357 | (let ((name (channel-name channel))) | |
358 | (match (vhash-assq name table) | |
359 | ((_ . target) | |
360 | (vhash-consq instance target edges))))) | |
361 | edges | |
362 | (channel-instance-dependencies instance))) | |
363 | vlist-null | |
364 | instances)) | |
365 | ||
366 | (lambda (instance) | |
367 | (vhash-foldq* cons '() instance edges))) | |
368 | ||
0d39a3b9 LC |
369 | (define (channel-instance-derivations instances) |
370 | "Return the list of derivations to build INSTANCES, in the same order as | |
371 | INSTANCES." | |
372 | (define core-instance | |
373 | ;; The 'guix' channel is treated specially: it's an implicit dependency of | |
374 | ;; all the other channels. | |
375 | (find (lambda (instance) | |
376 | (guix-channel? (channel-instance-channel instance))) | |
377 | instances)) | |
378 | ||
ed75bdf3 LC |
379 | (define edges |
380 | (resolve-dependencies instances)) | |
381 | ||
382 | (define (instance->derivation instance) | |
cdf68947 LC |
383 | (mlet %store-monad ((system (current-system))) |
384 | (mcached (if (eq? instance core-instance) | |
385 | (build-channel-instance instance) | |
386 | (mlet %store-monad ((core (instance->derivation core-instance)) | |
387 | (deps (mapm %store-monad instance->derivation | |
388 | (edges instance)))) | |
389 | (build-channel-instance instance core deps))) | |
390 | instance | |
391 | system))) | |
ed75bdf3 | 392 | |
ab6025b5 LC |
393 | (unless core-instance |
394 | (let ((loc (and=> (any (compose channel-location channel-instance-channel) | |
395 | instances) | |
396 | source-properties->location))) | |
397 | (raise (apply make-compound-condition | |
398 | (condition | |
399 | (&message (message "'guix' channel is lacking"))) | |
400 | (if loc | |
401 | (list (condition (&error-location (location loc)))) | |
402 | '()))))) | |
403 | ||
ed75bdf3 | 404 | (mapm %store-monad instance->derivation instances)) |
0d39a3b9 | 405 | |
0d39a3b9 LC |
406 | (define (whole-package-for-legacy name modules) |
407 | "Return a full-blown Guix package for MODULES, a derivation that builds Guix | |
408 | modules in the old ~/.config/guix/latest style." | |
409 | (define packages | |
410 | (resolve-interface '(gnu packages guile))) | |
411 | ||
49c35bbb LC |
412 | (define modules+compiled |
413 | ;; Since MODULES contains both .scm and .go files at its root, re-bundle | |
414 | ;; it so that it has share/guile/site and lib/guile, which is what | |
415 | ;; 'whole-package' expects. | |
416 | (computed-file (derivation-name modules) | |
417 | (with-imported-modules '((guix build utils)) | |
418 | #~(begin | |
419 | (use-modules (guix build utils)) | |
420 | ||
421 | (define version | |
422 | (effective-version)) | |
423 | (define share | |
424 | (string-append #$output "/share/guile/site")) | |
425 | (define lib | |
426 | (string-append #$output "/lib/guile/" version)) | |
427 | ||
428 | (mkdir-p share) (mkdir-p lib) | |
429 | (symlink #$modules (string-append share "/" version)) | |
430 | (symlink #$modules (string-append lib "/site-ccache")))))) | |
431 | ||
0d39a3b9 LC |
432 | (letrec-syntax ((list (syntax-rules (->) |
433 | ((_) | |
434 | '()) | |
435 | ((_ (module -> variable) rest ...) | |
436 | (cons (module-ref (resolve-interface | |
437 | '(gnu packages module)) | |
438 | 'variable) | |
439 | (list rest ...))) | |
440 | ((_ variable rest ...) | |
441 | (cons (module-ref packages 'variable) | |
442 | (list rest ...)))))) | |
49c35bbb | 443 | (whole-package name modules+compiled |
0d39a3b9 LC |
444 | |
445 | ;; In the "old style", %SELF-BUILD-FILE would simply return a | |
446 | ;; derivation that builds modules. We have to infer what the | |
447 | ;; dependencies of these modules were. | |
448 | (list guile-json guile-git guile-bytestructures | |
449 | (ssh -> guile-ssh) (tls -> gnutls))))) | |
450 | ||
451 | (define (old-style-guix? drv) | |
452 | "Return true if DRV corresponds to a ~/.config/guix/latest style of | |
453 | derivation." | |
454 | ;; Here we rely on a gross historical fact: that derivations produced by the | |
455 | ;; "old style" (before commit 8a0d9bc8a3f153159d9e239a151c0fa98f1e12d8, | |
456 | ;; dated May 30, 2018) did not depend on "guix-command.drv". | |
457 | (not (find (lambda (input) | |
9af75a26 LC |
458 | (string=? "guix-command" |
459 | (derivation-name | |
460 | (derivation-input-derivation input)))) | |
0d39a3b9 LC |
461 | (derivation-inputs drv)))) |
462 | ||
463 | (define (channel-instances->manifest instances) | |
464 | "Return a profile manifest with entries for all of INSTANCES, a list of | |
465 | channel instances." | |
d9e6217f LC |
466 | (define (instance->entry instance drv) |
467 | (let ((commit (channel-instance-commit instance)) | |
468 | (channel (channel-instance-channel instance))) | |
469 | (manifest-entry | |
470 | (name (symbol->string (channel-name channel))) | |
471 | (version (string-take commit 7)) | |
472 | (item (if (guix-channel? channel) | |
473 | (if (old-style-guix? drv) | |
474 | (whole-package-for-legacy (string-append name "-" version) | |
475 | drv) | |
476 | drv) | |
477 | drv)) | |
478 | (properties | |
479 | `((source (repository | |
480 | (version 0) | |
481 | (url ,(channel-url channel)) | |
482 | (branch ,(channel-branch channel)) | |
483 | (commit ,commit)))))))) | |
0d39a3b9 LC |
484 | |
485 | (mlet* %store-monad ((derivations (channel-instance-derivations instances)) | |
d9e6217f | 486 | (entries -> (map instance->entry instances derivations))) |
0d39a3b9 | 487 | (return (manifest entries)))) |
030f1367 | 488 | |
5fbdc9a5 LC |
489 | (define (package-cache-file manifest) |
490 | "Build a package cache file for the instance in MANIFEST. This is meant to | |
491 | be used as a profile hook." | |
492 | (mlet %store-monad ((profile (profile-derivation manifest | |
493 | #:hooks '()))) | |
494 | ||
495 | (define build | |
496 | #~(begin | |
497 | (use-modules (gnu packages)) | |
498 | ||
499 | (if (defined? 'generate-package-cache) | |
500 | (begin | |
501 | ;; Delegate package cache generation to the inferior. | |
502 | (format (current-error-port) | |
503 | "Generating package cache for '~a'...~%" | |
504 | #$profile) | |
505 | (generate-package-cache #$output)) | |
506 | (mkdir #$output)))) | |
507 | ||
508 | (gexp->derivation-in-inferior "guix-package-cache" build | |
509 | profile | |
4035fcba LC |
510 | |
511 | ;; If the Guix in PROFILE is too old and | |
512 | ;; lacks 'guix repl', don't build the cache | |
513 | ;; instead of failing. | |
514 | #:silent-failure? #t | |
515 | ||
5fbdc9a5 | 516 | #:properties '((type . profile-hook) |
f674bc66 LC |
517 | (hook . package-cache)) |
518 | #:local-build? #t))) | |
5fbdc9a5 LC |
519 | |
520 | (define %channel-profile-hooks | |
521 | ;; The default channel profile hooks. | |
522 | (cons package-cache-file %default-profile-hooks)) | |
523 | ||
c37f38bd LC |
524 | (define (channel-instances->derivation instances) |
525 | "Return the derivation of the profile containing INSTANCES, a list of | |
526 | channel instances." | |
527 | (mlet %store-monad ((manifest (channel-instances->manifest instances))) | |
5fbdc9a5 LC |
528 | (profile-derivation manifest |
529 | #:hooks %channel-profile-hooks))) | |
c37f38bd | 530 | |
030f1367 LC |
531 | (define latest-channel-instances* |
532 | (store-lift latest-channel-instances)) | |
533 | ||
534 | (define* (latest-channel-derivation #:optional (channels %default-channels)) | |
535 | "Return as a monadic value the derivation that builds the profile for the | |
536 | latest instances of CHANNELS." | |
c37f38bd LC |
537 | (mlet %store-monad ((instances (latest-channel-instances* channels))) |
538 | (channel-instances->derivation instances))) | |
a7c714d3 LC |
539 | |
540 | (define (profile-channels profile) | |
541 | "Return the list of channels corresponding to entries in PROFILE. If | |
542 | PROFILE is not a profile created by 'guix pull', return the empty list." | |
543 | (filter-map (lambda (entry) | |
544 | (match (assq 'source (manifest-entry-properties entry)) | |
545 | (('source ('repository ('version 0) | |
546 | ('url url) | |
547 | ('branch branch) | |
548 | ('commit commit) | |
549 | _ ...)) | |
550 | (channel (name (string->symbol | |
551 | (manifest-entry-name entry))) | |
552 | (url url) | |
553 | (commit commit))) | |
554 | ||
555 | ;; No channel information for this manifest entry. | |
556 | ;; XXX: Pre-0.15.0 Guix did not provide that information, | |
557 | ;; but there's not much we can do in that case. | |
558 | (_ #f))) | |
559 | ||
560 | ;; Show most recently installed packages last. | |
561 | (reverse | |
562 | (manifest-entries (profile-manifest profile))))) |