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233e7676 | 1 | ;;; GNU Guix --- Functional package management for GNU |
deac976d | 2 | ;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org> |
77d3cf08 | 3 | ;;; |
233e7676 | 4 | ;;; This file is part of GNU Guix. |
77d3cf08 | 5 | ;;; |
233e7676 | 6 | ;;; GNU Guix is free software; you can redistribute it and/or modify it |
77d3cf08 LC |
7 | ;;; under the terms of the GNU General Public License as published by |
8 | ;;; the Free Software Foundation; either version 3 of the License, or (at | |
9 | ;;; your option) any later version. | |
10 | ;;; | |
233e7676 | 11 | ;;; GNU Guix is distributed in the hope that it will be useful, but |
77d3cf08 LC |
12 | ;;; WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | ;;; GNU General Public License for more details. | |
15 | ;;; | |
16 | ;;; You should have received a copy of the GNU General Public License | |
233e7676 | 17 | ;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. |
77d3cf08 LC |
18 | |
19 | (define-module (guix store) | |
82058eff | 20 | #:use-module (guix utils) |
d8eea3d2 | 21 | #:use-module (guix config) |
f9704f17 | 22 | #:use-module (guix memoization) |
0f41c26f | 23 | #:use-module (guix serialization) |
e87f0591 | 24 | #:use-module (guix monads) |
4c0c4db0 | 25 | #:use-module (guix base16) |
cd041b26 LC |
26 | #:use-module (guix base32) |
27 | #:use-module (guix hash) | |
b0a6a971 | 28 | #:autoload (guix build syscalls) (terminal-columns) |
77d3cf08 | 29 | #:use-module (rnrs bytevectors) |
2535635f | 30 | #:use-module (ice-9 binary-ports) |
77d3cf08 LC |
31 | #:use-module (srfi srfi-1) |
32 | #:use-module (srfi srfi-9) | |
bf8e7fc5 | 33 | #:use-module (srfi srfi-9 gnu) |
6581ec9a | 34 | #:use-module (srfi srfi-11) |
77d3cf08 | 35 | #:use-module (srfi srfi-26) |
e87088c9 LC |
36 | #:use-module (srfi srfi-34) |
37 | #:use-module (srfi srfi-35) | |
26bbbb95 | 38 | #:use-module (srfi srfi-39) |
77d3cf08 | 39 | #:use-module (ice-9 match) |
e3d74106 | 40 | #:use-module (ice-9 regex) |
3f1e6939 | 41 | #:use-module (ice-9 vlist) |
6bfec3ed | 42 | #:use-module (ice-9 popen) |
b100a704 | 43 | #:use-module (ice-9 threads) |
1f3ea898 | 44 | #:use-module (ice-9 format) |
1397b422 LC |
45 | #:use-module (web uri) |
46 | #:export (%daemon-socket-uri | |
a9d2a105 | 47 | %gc-roots-directory |
f8a8e0fe | 48 | %default-substitute-urls |
9fd72fb1 LC |
49 | |
50 | nix-server? | |
77d3cf08 LC |
51 | nix-server-major-version |
52 | nix-server-minor-version | |
53 | nix-server-socket | |
54 | ||
e87088c9 | 55 | &nix-error nix-error? |
ef86c39f LC |
56 | &nix-connection-error nix-connection-error? |
57 | nix-connection-error-file | |
58 | nix-connection-error-code | |
e87088c9 LC |
59 | &nix-protocol-error nix-protocol-error? |
60 | nix-protocol-error-message | |
61 | nix-protocol-error-status | |
62 | ||
26bbbb95 | 63 | hash-algo |
07e70f48 | 64 | build-mode |
26bbbb95 | 65 | |
77d3cf08 | 66 | open-connection |
3abaf0c4 | 67 | close-connection |
ce4a4829 | 68 | with-store |
77d3cf08 | 69 | set-build-options |
4f740b67 | 70 | set-build-options* |
31ef99a8 | 71 | valid-path? |
82058eff | 72 | query-path-hash |
11e7a6cf | 73 | hash-part->path |
533d1768 | 74 | query-path-info |
0d268c5d | 75 | add-data-to-store |
77d3cf08 LC |
76 | add-text-to-store |
77 | add-to-store | |
abac874b LC |
78 | build-things |
79 | build | |
16748d80 LC |
80 | query-failed-paths |
81 | clear-failed-paths | |
3259877d | 82 | add-temp-root |
34811f02 | 83 | add-indirect-root |
a9d2a105 LC |
84 | add-permanent-root |
85 | remove-permanent-root | |
26bbbb95 | 86 | |
0f3d2504 LC |
87 | substitutable? |
88 | substitutable-path | |
89 | substitutable-deriver | |
90 | substitutable-references | |
91 | substitutable-download-size | |
92 | substitutable-nar-size | |
93 | has-substitutes? | |
94 | substitutable-paths | |
95 | substitutable-path-info | |
96 | ||
533d1768 DT |
97 | path-info? |
98 | path-info-deriver | |
99 | path-info-hash | |
100 | path-info-references | |
101 | path-info-registration-time | |
102 | path-info-nar-size | |
103 | ||
f9aefa2d | 104 | built-in-builders |
fae31edc | 105 | references |
6581ec9a | 106 | references/substitutes |
e74f64b9 | 107 | references* |
3f1e6939 | 108 | requisites |
fae31edc | 109 | referrers |
e3fd0ce6 | 110 | optimize-store |
c63d9403 | 111 | verify-store |
50add477 | 112 | topologically-sorted |
fae31edc LC |
113 | valid-derivers |
114 | query-derivation-outputs | |
3259877d LC |
115 | live-paths |
116 | dead-paths | |
117 | collect-garbage | |
118 | delete-paths | |
526382ff LC |
119 | import-paths |
120 | export-paths | |
3259877d | 121 | |
dcee50c1 LC |
122 | current-build-output-port |
123 | ||
6bfec3ed LC |
124 | register-path |
125 | ||
e87f0591 LC |
126 | %store-monad |
127 | store-bind | |
128 | store-return | |
129 | store-lift | |
023d9892 | 130 | store-lower |
e87f0591 LC |
131 | run-with-store |
132 | %guile-for-build | |
98a7b528 LC |
133 | current-system |
134 | set-current-system | |
e87f0591 LC |
135 | text-file |
136 | interned-file | |
137 | ||
26bbbb95 | 138 | %store-prefix |
cd041b26 LC |
139 | store-path |
140 | output-path | |
141 | fixed-output-path | |
26bbbb95 | 142 | store-path? |
9336e5b5 | 143 | direct-store-path? |
e3d74106 | 144 | derivation-path? |
2c6ab6cc | 145 | store-path-package-name |
eddd4077 | 146 | store-path-hash-part |
cdb5b075 | 147 | direct-store-path |
eddd4077 | 148 | log-file)) |
77d3cf08 | 149 | |
deac976d | 150 | (define %protocol-version #x161) |
77d3cf08 | 151 | |
d66b704b LC |
152 | (define %worker-magic-1 #x6e697863) ; "nixc" |
153 | (define %worker-magic-2 #x6478696f) ; "dxio" | |
77d3cf08 LC |
154 | |
155 | (define (protocol-major magic) | |
156 | (logand magic #xff00)) | |
157 | (define (protocol-minor magic) | |
158 | (logand magic #x00ff)) | |
159 | ||
160 | (define-syntax define-enumerate-type | |
161 | (syntax-rules () | |
162 | ((_ name->int (name id) ...) | |
163 | (define-syntax name->int | |
164 | (syntax-rules (name ...) | |
165 | ((_ name) id) ...))))) | |
166 | ||
167 | (define-enumerate-type operation-id | |
168 | ;; operation numbers from worker-protocol.hh | |
169 | (quit 0) | |
170 | (valid-path? 1) | |
171 | (has-substitutes? 3) | |
172 | (query-path-hash 4) | |
173 | (query-references 5) | |
174 | (query-referrers 6) | |
175 | (add-to-store 7) | |
176 | (add-text-to-store 8) | |
abac874b | 177 | (build-things 9) |
77d3cf08 LC |
178 | (ensure-path 10) |
179 | (add-temp-root 11) | |
180 | (add-indirect-root 12) | |
181 | (sync-with-gc 13) | |
182 | (find-roots 14) | |
183 | (export-path 16) | |
184 | (query-deriver 18) | |
185 | (set-options 19) | |
186 | (collect-garbage 20) | |
63193ebf | 187 | ;;(query-substitutable-path-info 21) ; obsolete as of #x10c |
77d3cf08 | 188 | (query-derivation-outputs 22) |
63193ebf | 189 | (query-all-valid-paths 23) |
77d3cf08 LC |
190 | (query-failed-paths 24) |
191 | (clear-failed-paths 25) | |
192 | (query-path-info 26) | |
193 | (import-paths 27) | |
63193ebf LC |
194 | (query-derivation-output-names 28) |
195 | (query-path-from-hash-part 29) | |
196 | (query-substitutable-path-infos 30) | |
197 | (query-valid-paths 31) | |
fae31edc | 198 | (query-substitutable-paths 32) |
e3fd0ce6 | 199 | (query-valid-derivers 33) |
c63d9403 | 200 | (optimize-store 34) |
f9aefa2d LC |
201 | (verify-store 35) |
202 | (built-in-builders 80)) | |
77d3cf08 LC |
203 | |
204 | (define-enumerate-type hash-algo | |
205 | ;; hash.hh | |
206 | (md5 1) | |
207 | (sha1 2) | |
208 | (sha256 3)) | |
209 | ||
07e70f48 LC |
210 | (define-enumerate-type build-mode |
211 | ;; store-api.hh | |
212 | (normal 0) | |
213 | (repair 1) | |
214 | (check 2)) | |
215 | ||
3259877d LC |
216 | (define-enumerate-type gc-action |
217 | ;; store-api.hh | |
218 | (return-live 0) | |
219 | (return-dead 1) | |
220 | (delete-dead 2) | |
221 | (delete-specific 3)) | |
222 | ||
77d3cf08 | 223 | (define %default-socket-path |
80d0447c | 224 | (string-append %state-directory "/daemon-socket/socket")) |
77d3cf08 | 225 | |
1397b422 LC |
226 | (define %daemon-socket-uri |
227 | ;; URI or file name of the socket the daemon listens too. | |
9fd72fb1 LC |
228 | (make-parameter (or (getenv "GUIX_DAEMON_SOCKET") |
229 | %default-socket-path))) | |
230 | ||
231 | ||
77d3cf08 | 232 | \f |
0f3d2504 LC |
233 | ;; Information about a substitutable store path. |
234 | (define-record-type <substitutable> | |
235 | (substitutable path deriver refs dl-size nar-size) | |
236 | substitutable? | |
237 | (path substitutable-path) | |
238 | (deriver substitutable-deriver) | |
239 | (refs substitutable-references) | |
240 | (dl-size substitutable-download-size) | |
241 | (nar-size substitutable-nar-size)) | |
242 | ||
243 | (define (read-substitutable-path-list p) | |
244 | (let loop ((len (read-int p)) | |
245 | (result '())) | |
246 | (if (zero? len) | |
247 | (reverse result) | |
248 | (let ((path (read-store-path p)) | |
249 | (deriver (read-store-path p)) | |
250 | (refs (read-store-path-list p)) | |
251 | (dl-size (read-long-long p)) | |
252 | (nar-size (read-long-long p))) | |
253 | (loop (- len 1) | |
254 | (cons (substitutable path deriver refs dl-size nar-size) | |
255 | result)))))) | |
256 | ||
533d1768 DT |
257 | ;; Information about a store path. |
258 | (define-record-type <path-info> | |
259 | (path-info deriver hash references registration-time nar-size) | |
260 | path-info? | |
22572d56 | 261 | (deriver path-info-deriver) ;string | #f |
533d1768 DT |
262 | (hash path-info-hash) |
263 | (references path-info-references) | |
264 | (registration-time path-info-registration-time) | |
265 | (nar-size path-info-nar-size)) | |
266 | ||
267 | (define (read-path-info p) | |
22572d56 LC |
268 | (let ((deriver (match (read-store-path p) |
269 | ("" #f) | |
270 | (x x))) | |
533d1768 DT |
271 | (hash (base16-string->bytevector (read-string p))) |
272 | (refs (read-store-path-list p)) | |
273 | (registration-time (read-int p)) | |
274 | (nar-size (read-long-long p))) | |
275 | (path-info deriver hash refs registration-time nar-size))) | |
276 | ||
77d3cf08 | 277 | (define-syntax write-arg |
0d268c5d LC |
278 | (syntax-rules (integer boolean bytevector |
279 | string string-list string-pairs | |
3259877d | 280 | store-path store-path-list base16) |
77d3cf08 LC |
281 | ((_ integer arg p) |
282 | (write-int arg p)) | |
283 | ((_ boolean arg p) | |
284 | (write-int (if arg 1 0) p)) | |
0d268c5d LC |
285 | ((_ bytevector arg p) |
286 | (write-bytevector arg p)) | |
77d3cf08 LC |
287 | ((_ string arg p) |
288 | (write-string arg p)) | |
289 | ((_ string-list arg p) | |
82058eff | 290 | (write-string-list arg p)) |
6c20d1d0 LC |
291 | ((_ string-pairs arg p) |
292 | (write-string-pairs arg p)) | |
3259877d LC |
293 | ((_ store-path arg p) |
294 | (write-store-path arg p)) | |
295 | ((_ store-path-list arg p) | |
296 | (write-store-path-list arg p)) | |
82058eff LC |
297 | ((_ base16 arg p) |
298 | (write-string (bytevector->base16-string arg) p)))) | |
77d3cf08 LC |
299 | |
300 | (define-syntax read-arg | |
f9aefa2d | 301 | (syntax-rules (integer boolean string store-path store-path-list string-list |
533d1768 | 302 | substitutable-path-list path-info base16) |
77d3cf08 LC |
303 | ((_ integer p) |
304 | (read-int p)) | |
305 | ((_ boolean p) | |
306 | (not (zero? (read-int p)))) | |
307 | ((_ string p) | |
308 | (read-string p)) | |
309 | ((_ store-path p) | |
82058eff | 310 | (read-store-path p)) |
3259877d LC |
311 | ((_ store-path-list p) |
312 | (read-store-path-list p)) | |
f9aefa2d LC |
313 | ((_ string-list p) |
314 | (read-string-list p)) | |
0f3d2504 LC |
315 | ((_ substitutable-path-list p) |
316 | (read-substitutable-path-list p)) | |
533d1768 DT |
317 | ((_ path-info p) |
318 | (read-path-info p)) | |
0f3d2504 | 319 | ((_ base16 p) |
82058eff | 320 | (base16-string->bytevector (read-string p))))) |
77d3cf08 LC |
321 | |
322 | \f | |
323 | ;; remote-store.cc | |
324 | ||
325 | (define-record-type <nix-server> | |
2c3f47ee | 326 | (%make-nix-server socket major minor |
e037e9db | 327 | buffer flush |
bdcf35a6 | 328 | ats-cache atts-cache) |
77d3cf08 LC |
329 | nix-server? |
330 | (socket nix-server-socket) | |
331 | (major nix-server-major-version) | |
2c3f47ee LC |
332 | (minor nix-server-minor-version) |
333 | ||
e037e9db LC |
334 | (buffer nix-server-output-port) ;output port |
335 | (flush nix-server-flush-output) ;thunk | |
336 | ||
2c3f47ee LC |
337 | ;; Caches. We keep them per-connection, because store paths build |
338 | ;; during the session are temporary GC roots kept for the duration of | |
339 | ;; the session. | |
bdcf35a6 LC |
340 | (ats-cache nix-server-add-to-store-cache) |
341 | (atts-cache nix-server-add-text-to-store-cache)) | |
77d3cf08 | 342 | |
bf8e7fc5 LC |
343 | (set-record-type-printer! <nix-server> |
344 | (lambda (obj port) | |
345 | (format port "#<build-daemon ~a.~a ~a>" | |
346 | (nix-server-major-version obj) | |
347 | (nix-server-minor-version obj) | |
348 | (number->string (object-address obj) | |
349 | 16)))) | |
350 | ||
e87088c9 LC |
351 | (define-condition-type &nix-error &error |
352 | nix-error?) | |
353 | ||
ef86c39f LC |
354 | (define-condition-type &nix-connection-error &nix-error |
355 | nix-connection-error? | |
356 | (file nix-connection-error-file) | |
357 | (errno nix-connection-error-code)) | |
358 | ||
e87088c9 LC |
359 | (define-condition-type &nix-protocol-error &nix-error |
360 | nix-protocol-error? | |
361 | (message nix-protocol-error-message) | |
362 | (status nix-protocol-error-status)) | |
363 | ||
3b5cd17a LC |
364 | (define-syntax-rule (system-error-to-connection-error file exp ...) |
365 | "Catch 'system-error' exceptions and translate them to | |
366 | '&nix-connection-error'." | |
367 | (catch 'system-error | |
368 | (lambda () | |
369 | exp ...) | |
370 | (lambda args | |
371 | (let ((errno (system-error-errno args))) | |
372 | (raise (condition (&nix-connection-error | |
373 | (file file) | |
374 | (errno errno)))))))) | |
375 | ||
6230d6f0 LC |
376 | (define (open-unix-domain-socket file) |
377 | "Connect to the Unix-domain socket at FILE and return it. Raise a | |
378 | '&nix-connection-error' upon error." | |
77d3cf08 LC |
379 | (let ((s (with-fluids ((%default-port-encoding #f)) |
380 | ;; This trick allows use of the `scm_c_read' optimization. | |
381 | (socket PF_UNIX SOCK_STREAM 0))) | |
382 | (a (make-socket-address PF_UNIX file))) | |
df1fab58 | 383 | |
3b5cd17a LC |
384 | (system-error-to-connection-error file |
385 | (connect s a) | |
386 | s))) | |
ef86c39f | 387 | |
5df1395a LC |
388 | (define %default-guix-port |
389 | ;; Default port when connecting to a daemon over TCP/IP. | |
390 | 44146) | |
391 | ||
3dff90ce LC |
392 | (define (open-inet-socket host port) |
393 | "Connect to the Unix-domain socket at HOST:PORT and return it. Raise a | |
394 | '&nix-connection-error' upon error." | |
950d51c9 LC |
395 | ;; Define 'TCP_NODELAY' on Guile 2.0. The value is the same on all GNU |
396 | ;; systems. | |
397 | (cond-expand (guile-2.2 #t) | |
398 | (else (define TCP_NODELAY 1))) | |
399 | ||
3dff90ce LC |
400 | (let ((sock (with-fluids ((%default-port-encoding #f)) |
401 | ;; This trick allows use of the `scm_c_read' optimization. | |
402 | (socket PF_UNIX SOCK_STREAM 0)))) | |
403 | (define addresses | |
404 | (getaddrinfo host | |
405 | (if (number? port) (number->string port) port) | |
406 | (if (number? port) | |
407 | (logior AI_ADDRCONFIG AI_NUMERICSERV) | |
7ae97a4c LC |
408 | AI_ADDRCONFIG) |
409 | 0 ;any address family | |
410 | SOCK_STREAM)) ;TCP only | |
3dff90ce LC |
411 | |
412 | (let loop ((addresses addresses)) | |
413 | (match addresses | |
414 | ((ai rest ...) | |
415 | (let ((s (socket (addrinfo:fam ai) | |
416 | ;; TCP/IP only | |
417 | SOCK_STREAM IPPROTO_IP))) | |
418 | ||
419 | (catch 'system-error | |
420 | (lambda () | |
421 | (connect s (addrinfo:addr ai)) | |
950d51c9 LC |
422 | |
423 | ;; Setting this option makes a dramatic difference because it | |
424 | ;; avoids the "ACK delay" on our RPC messages. | |
425 | (setsockopt s IPPROTO_TCP TCP_NODELAY 1) | |
3dff90ce LC |
426 | s) |
427 | (lambda args | |
428 | ;; Connection failed, so try one of the other addresses. | |
429 | (close s) | |
430 | (if (null? rest) | |
431 | (raise (condition (&nix-connection-error | |
432 | (file host) | |
433 | (errno (system-error-errno args))))) | |
434 | (loop rest)))))))))) | |
435 | ||
1397b422 LC |
436 | (define (connect-to-daemon uri) |
437 | "Connect to the daemon at URI, a string that may be an actual URI or a file | |
438 | name." | |
285f63e8 LC |
439 | (define (not-supported) |
440 | (raise (condition (&nix-connection-error | |
441 | (file uri) | |
442 | (errno ENOTSUP))))) | |
443 | ||
1397b422 LC |
444 | (define connect |
445 | (match (string->uri uri) | |
446 | (#f ;URI is a file name | |
447 | open-unix-domain-socket) | |
448 | ((? uri? uri) | |
449 | (match (uri-scheme uri) | |
450 | ((or #f 'file 'unix) | |
451 | (lambda (_) | |
452 | (open-unix-domain-socket (uri-path uri)))) | |
3dff90ce LC |
453 | ('guix |
454 | (lambda (_) | |
5df1395a LC |
455 | (open-inet-socket (uri-host uri) |
456 | (or (uri-port uri) %default-guix-port)))) | |
285f63e8 LC |
457 | ((? symbol? scheme) |
458 | ;; Try to dynamically load a module for SCHEME. | |
459 | ;; XXX: Errors are swallowed. | |
460 | (match (false-if-exception | |
461 | (resolve-interface `(guix store ,scheme))) | |
462 | ((? module? module) | |
463 | (match (false-if-exception | |
464 | (module-ref module 'connect-to-daemon)) | |
465 | ((? procedure? connect) | |
466 | (lambda (_) | |
467 | (connect uri))) | |
468 | (x (not-supported)))) | |
469 | (#f (not-supported)))) | |
1397b422 | 470 | (x |
285f63e8 | 471 | (not-supported)))))) |
1397b422 LC |
472 | |
473 | (connect uri)) | |
474 | ||
475 | (define* (open-connection #:optional (uri (%daemon-socket-uri)) | |
6230d6f0 | 476 | #:key port (reserve-space? #t) cpu-affinity) |
1397b422 LC |
477 | "Connect to the daemon at URI (a string), or, if PORT is not #f, use it as |
478 | the I/O port over which to communicate to a build daemon. | |
6230d6f0 LC |
479 | |
480 | When RESERVE-SPACE? is true, instruct it to reserve a little bit of extra | |
481 | space on the file system so that the garbage collector can still operate, | |
482 | should the disk become full. When CPU-AFFINITY is true, it must be an integer | |
483 | corresponding to an OS-level CPU number to which the daemon's worker process | |
484 | for this connection will be pinned. Return a server object." | |
13d5e8da LC |
485 | (guard (c ((nar-error? c) |
486 | ;; One of the 'write-' or 'read-' calls below failed, but this is | |
487 | ;; really a connection error. | |
488 | (raise (condition | |
1397b422 | 489 | (&nix-connection-error (file (or port uri)) |
13d5e8da LC |
490 | (errno EPROTO)) |
491 | (&message (message "build daemon handshake failed")))))) | |
e037e9db LC |
492 | (let*-values (((port) |
493 | (or port (connect-to-daemon uri))) | |
494 | ((output flush) | |
495 | (buffering-output-port port | |
496 | (make-bytevector 8192)))) | |
13d5e8da LC |
497 | (write-int %worker-magic-1 port) |
498 | (let ((r (read-int port))) | |
499 | (and (eqv? r %worker-magic-2) | |
500 | (let ((v (read-int port))) | |
501 | (and (eqv? (protocol-major %protocol-version) | |
502 | (protocol-major v)) | |
503 | (begin | |
504 | (write-int %protocol-version port) | |
505 | (when (>= (protocol-minor v) 14) | |
506 | (write-int (if cpu-affinity 1 0) port) | |
507 | (when cpu-affinity | |
508 | (write-int cpu-affinity port))) | |
509 | (when (>= (protocol-minor v) 11) | |
510 | (write-int (if reserve-space? 1 0) port)) | |
511 | (let ((conn (%make-nix-server port | |
512 | (protocol-major v) | |
513 | (protocol-minor v) | |
e037e9db | 514 | output flush |
13d5e8da LC |
515 | (make-hash-table 100) |
516 | (make-hash-table 100)))) | |
517 | (let loop ((done? (process-stderr conn))) | |
518 | (or done? (process-stderr conn))) | |
519 | conn))))))))) | |
77d3cf08 | 520 | |
e037e9db LC |
521 | (define (write-buffered-output server) |
522 | "Flush SERVER's output port." | |
523 | (force-output (nix-server-output-port server)) | |
524 | ((nix-server-flush-output server))) | |
525 | ||
3abaf0c4 LC |
526 | (define (close-connection server) |
527 | "Close the connection to SERVER." | |
528 | (close (nix-server-socket server))) | |
529 | ||
ce4a4829 LC |
530 | (define-syntax-rule (with-store store exp ...) |
531 | "Bind STORE to an open connection to the store and evaluate EXPs; | |
532 | automatically close the store when the dynamic extent of EXP is left." | |
533 | (let ((store (open-connection))) | |
534 | (dynamic-wind | |
535 | (const #f) | |
536 | (lambda () | |
537 | exp ...) | |
538 | (lambda () | |
539 | (false-if-exception (close-connection store)))))) | |
540 | ||
dcee50c1 LC |
541 | (define current-build-output-port |
542 | ;; The port where build output is sent. | |
543 | (make-parameter (current-error-port))) | |
544 | ||
526382ff LC |
545 | (define* (dump-port in out |
546 | #:optional len | |
547 | #:key (buffer-size 16384)) | |
548 | "Read LEN bytes from IN (or as much as possible if LEN is #f) and write it | |
549 | to OUT, using chunks of BUFFER-SIZE bytes." | |
550 | (define buffer | |
551 | (make-bytevector buffer-size)) | |
552 | ||
553 | (let loop ((total 0) | |
554 | (bytes (get-bytevector-n! in buffer 0 | |
555 | (if len | |
556 | (min len buffer-size) | |
557 | buffer-size)))) | |
558 | (or (eof-object? bytes) | |
559 | (and len (= total len)) | |
560 | (let ((total (+ total bytes))) | |
561 | (put-bytevector out buffer 0 bytes) | |
562 | (loop total | |
563 | (get-bytevector-n! in buffer 0 | |
564 | (if len | |
565 | (min (- len total) buffer-size) | |
566 | buffer-size))))))) | |
567 | ||
d28869af LC |
568 | (define %newlines |
569 | ;; Newline characters triggering a flush of 'current-build-output-port'. | |
570 | ;; Unlike Guile's _IOLBF, we flush upon #\return so that progress reports | |
571 | ;; that use that trick are correctly displayed. | |
572 | (char-set #\newline #\return)) | |
573 | ||
526382ff | 574 | (define* (process-stderr server #:optional user-port) |
dcee50c1 LC |
575 | "Read standard output and standard error from SERVER, writing it to |
576 | CURRENT-BUILD-OUTPUT-PORT. Return #t when SERVER is done sending data, and | |
577 | #f otherwise; in the latter case, the caller should call `process-stderr' | |
bbdb3ffa LC |
578 | again until #t is returned or an error is raised. |
579 | ||
580 | Since the build process's output cannot be assumed to be UTF-8, we | |
581 | conservatively consider it to be Latin-1, thereby avoiding possible | |
582 | encoding conversion errors." | |
77d3cf08 LC |
583 | (define p |
584 | (nix-server-socket server)) | |
585 | ||
586 | ;; magic cookies from worker-protocol.hh | |
5674a3fd LC |
587 | (define %stderr-next #x6f6c6d67) ; "olmg", build log |
588 | (define %stderr-read #x64617461) ; "data", data needed from source | |
589 | (define %stderr-write #x64617416) ; "dat\x16", data for sink | |
590 | (define %stderr-last #x616c7473) ; "alts", we're done | |
591 | (define %stderr-error #x63787470) ; "cxtp", error reporting | |
77d3cf08 LC |
592 | |
593 | (let ((k (read-int p))) | |
594 | (cond ((= k %stderr-write) | |
526382ff LC |
595 | ;; Write a byte stream to USER-PORT. |
596 | (let* ((len (read-int p)) | |
597 | (m (modulo len 8))) | |
6374633b LC |
598 | (dump-port p user-port len |
599 | #:buffer-size (if (<= len 16384) 16384 65536)) | |
526382ff LC |
600 | (unless (zero? m) |
601 | ;; Consume padding, as for strings. | |
602 | (get-bytevector-n p (- 8 m)))) | |
dcee50c1 | 603 | #f) |
77d3cf08 | 604 | ((= k %stderr-read) |
526382ff | 605 | ;; Read a byte stream from USER-PORT. |
5895f244 LC |
606 | ;; Note: Avoid 'get-bytevector-n' to work around |
607 | ;; <http://bugs.gnu.org/17591> in Guile up to 2.0.11. | |
526382ff | 608 | (let* ((max-len (read-int p)) |
5895f244 LC |
609 | (data (make-bytevector max-len)) |
610 | (len (get-bytevector-n! user-port data 0 max-len))) | |
396d12fa | 611 | (write-bytevector data p) |
dcee50c1 | 612 | #f)) |
77d3cf08 | 613 | ((= k %stderr-next) |
ce72c780 LC |
614 | ;; Log a string. Build logs are usually UTF-8-encoded, but they |
615 | ;; may also contain arbitrary byte sequences that should not cause | |
616 | ;; this to fail. Thus, use the permissive | |
617 | ;; 'read-maybe-utf8-string'. | |
618 | (let ((s (read-maybe-utf8-string p))) | |
dcee50c1 | 619 | (display s (current-build-output-port)) |
d28869af | 620 | (when (string-any %newlines s) |
2535635f | 621 | (force-output (current-build-output-port))) |
dcee50c1 | 622 | #f)) |
77d3cf08 | 623 | ((= k %stderr-error) |
526382ff | 624 | ;; Report an error. |
ce72c780 | 625 | (let ((error (read-maybe-utf8-string p)) |
0ff3e3aa LC |
626 | ;; Currently the daemon fails to send a status code for early |
627 | ;; errors like DB schema version mismatches, so check for EOF. | |
628 | (status (if (and (>= (nix-server-minor-version server) 8) | |
629 | (not (eof-object? (lookahead-u8 p)))) | |
77d3cf08 LC |
630 | (read-int p) |
631 | 1))) | |
e87088c9 LC |
632 | (raise (condition (&nix-protocol-error |
633 | (message error) | |
634 | (status status)))))) | |
77d3cf08 | 635 | ((= k %stderr-last) |
dcee50c1 | 636 | ;; The daemon is done (see `stopWork' in `nix-worker.cc'.) |
77d3cf08 LC |
637 | #t) |
638 | (else | |
e87088c9 LC |
639 | (raise (condition (&nix-protocol-error |
640 | (message "invalid error code") | |
641 | (status k)))))))) | |
77d3cf08 | 642 | |
4d581220 | 643 | (define %default-substitute-urls |
d70533cb LC |
644 | ;; Default list of substituters. This is *not* the list baked in |
645 | ;; 'guix-daemon', but it is used by 'guix-service-type' and and a couple of | |
646 | ;; clients ('guix build --log-file' uses it.) | |
df061d07 LC |
647 | (map (if (false-if-exception (resolve-interface '(gnutls))) |
648 | (cut string-append "https://" <>) | |
649 | (cut string-append "http://" <>)) | |
f82ce8f6 | 650 | '("mirror.hydra.gnu.org"))) |
4d581220 | 651 | |
77d3cf08 | 652 | (define* (set-build-options server |
c3eb878f | 653 | #:key keep-failed? keep-going? fallback? |
77d3cf08 | 654 | (verbosity 0) |
2fba87ac | 655 | rounds ;number of build rounds |
deac976d | 656 | max-build-jobs |
6c20d1d0 | 657 | timeout |
deac976d | 658 | max-silent-time |
77d3cf08 LC |
659 | (use-build-hook? #t) |
660 | (build-verbosity 0) | |
661 | (log-type 0) | |
e036c31b | 662 | (print-build-trace #t) |
deac976d | 663 | build-cores |
63193ebf | 664 | (use-substitutes? #t) |
4d581220 | 665 | |
fb4bf72b LC |
666 | ;; Client-provided substitute URLs. If it is #f, |
667 | ;; the daemon's settings are used. Otherwise, it | |
668 | ;; overrides the daemons settings; see 'guix | |
669 | ;; substitute'. | |
b0a6a971 LC |
670 | (substitute-urls #f) |
671 | ||
672 | ;; Number of columns in the client's terminal. | |
38f50f49 LC |
673 | (terminal-columns (terminal-columns)) |
674 | ||
675 | ;; Locale of the client. | |
676 | (locale (false-if-exception (setlocale LC_ALL)))) | |
77d3cf08 LC |
677 | ;; Must be called after `open-connection'. |
678 | ||
679 | (define socket | |
680 | (nix-server-socket server)) | |
681 | ||
682 | (let-syntax ((send (syntax-rules () | |
e036c31b LC |
683 | ((_ (type option) ...) |
684 | (begin | |
685 | (write-arg type option socket) | |
686 | ...))))) | |
687 | (write-int (operation-id set-options) socket) | |
688 | (send (boolean keep-failed?) (boolean keep-going?) | |
deac976d LC |
689 | (boolean fallback?) (integer verbosity)) |
690 | (when (< (nix-server-minor-version server) #x61) | |
691 | (let ((max-build-jobs (or max-build-jobs 1)) | |
692 | (max-silent-time (or max-silent-time 3600))) | |
693 | (send (integer max-build-jobs) (integer max-silent-time)))) | |
371e87d2 LC |
694 | (when (>= (nix-server-minor-version server) 2) |
695 | (send (boolean use-build-hook?))) | |
696 | (when (>= (nix-server-minor-version server) 4) | |
697 | (send (integer build-verbosity) (integer log-type) | |
698 | (boolean print-build-trace))) | |
deac976d LC |
699 | (when (and (>= (nix-server-minor-version server) 6) |
700 | (< (nix-server-minor-version server) #x61)) | |
701 | (let ((build-cores (or build-cores (current-processor-count)))) | |
702 | (send (integer build-cores)))) | |
371e87d2 LC |
703 | (when (>= (nix-server-minor-version server) 10) |
704 | (send (boolean use-substitutes?))) | |
705 | (when (>= (nix-server-minor-version server) 12) | |
41c45e78 LC |
706 | (let ((pairs `(,@(if timeout |
707 | `(("build-timeout" . ,(number->string timeout))) | |
708 | '()) | |
deac976d LC |
709 | ,@(if max-silent-time |
710 | `(("build-max-silent-time" | |
711 | . ,(number->string max-silent-time))) | |
712 | '()) | |
713 | ,@(if max-build-jobs | |
714 | `(("build-max-jobs" | |
715 | . ,(number->string max-build-jobs))) | |
716 | '()) | |
717 | ,@(if build-cores | |
718 | `(("build-cores" . ,(number->string build-cores))) | |
719 | '()) | |
fb4bf72b LC |
720 | ,@(if substitute-urls |
721 | `(("substitute-urls" | |
722 | . ,(string-join substitute-urls))) | |
2fba87ac LC |
723 | '()) |
724 | ,@(if rounds | |
725 | `(("build-repeat" | |
726 | . ,(number->string (max 0 (1- rounds))))) | |
b0a6a971 LC |
727 | '()) |
728 | ,@(if terminal-columns | |
729 | `(("terminal-columns" | |
730 | . ,(number->string terminal-columns))) | |
38f50f49 LC |
731 | '()) |
732 | ,@(if locale | |
733 | `(("locale" . ,locale)) | |
fb4bf72b | 734 | '())))) |
f401b1e9 | 735 | (send (string-pairs pairs)))) |
dcee50c1 LC |
736 | (let loop ((done? (process-stderr server))) |
737 | (or done? (process-stderr server))))) | |
77d3cf08 | 738 | |
e037e9db LC |
739 | (define (buffering-output-port port buffer) |
740 | "Return two value: an output port wrapped around PORT that uses BUFFER (a | |
741 | bytevector) as its internal buffer, and a thunk to flush this output port." | |
742 | ;; Note: In Guile 2.2.2, custom binary output ports already have their own | |
743 | ;; 4K internal buffer. | |
744 | (define size | |
745 | (bytevector-length buffer)) | |
746 | ||
747 | (define total 0) | |
748 | ||
749 | (define (flush) | |
750 | (put-bytevector port buffer 0 total) | |
751 | (set! total 0)) | |
752 | ||
753 | (define (write bv offset count) | |
754 | (if (zero? count) ;end of file | |
755 | (flush) | |
756 | (let loop ((offset offset) | |
757 | (count count) | |
758 | (written 0)) | |
759 | (cond ((= total size) | |
760 | (flush) | |
761 | (loop offset count written)) | |
762 | ((zero? count) | |
763 | written) | |
764 | (else | |
765 | (let ((to-copy (min count (- size total)))) | |
766 | (bytevector-copy! bv offset buffer total to-copy) | |
767 | (set! total (+ total to-copy)) | |
768 | (loop (+ offset to-copy) (- count to-copy) | |
769 | (+ written to-copy)))))))) | |
770 | ||
771 | ;; Note: We need to return FLUSH because the custom binary port has no way | |
772 | ;; to be notified of a 'force-output' call on itself. | |
773 | (values (make-custom-binary-output-port "buffering-output-port" | |
774 | write #f #f flush) | |
775 | flush)) | |
776 | ||
f4453df9 LC |
777 | (define %rpc-calls |
778 | ;; Mapping from RPC names (symbols) to invocation counts. | |
779 | (make-hash-table)) | |
780 | ||
781 | (define* (show-rpc-profile #:optional (port (current-error-port))) | |
782 | "Write to PORT a summary of the RPCs that have been made." | |
783 | (let ((profile (sort (hash-fold alist-cons '() %rpc-calls) | |
784 | (lambda (rpc1 rpc2) | |
785 | (< (cdr rpc1) (cdr rpc2)))))) | |
786 | (format port "Remote procedure call summary: ~a RPCs~%" | |
787 | (match profile | |
788 | (((names . counts) ...) | |
789 | (reduce + 0 counts)))) | |
790 | (for-each (match-lambda | |
791 | ((rpc . count) | |
792 | (format port " ~30a ... ~5@a~%" rpc count))) | |
793 | profile))) | |
794 | ||
795 | (define record-operation | |
796 | ;; Optionally, increment the number of calls of the given RPC. | |
797 | (let ((profiled (or (and=> (getenv "GUIX_PROFILING") string-tokenize) | |
798 | '()))) | |
799 | (if (member "rpc" profiled) | |
800 | (begin | |
801 | (add-hook! exit-hook show-rpc-profile) | |
802 | (lambda (name) | |
803 | (let ((count (or (hashq-ref %rpc-calls name) 0))) | |
804 | (hashq-set! %rpc-calls name (+ count 1))))) | |
805 | (lambda (_) | |
806 | #t)))) | |
807 | ||
fd060fd3 | 808 | (define-syntax operation |
77d3cf08 | 809 | (syntax-rules () |
fd060fd3 | 810 | "Define a client-side RPC stub for the given operation." |
3259877d | 811 | ((_ (name (type arg) ...) docstring return ...) |
fd060fd3 | 812 | (lambda (server arg ...) |
77d3cf08 | 813 | docstring |
e037e9db LC |
814 | (let* ((s (nix-server-socket server)) |
815 | (buffered (nix-server-output-port server))) | |
f4453df9 | 816 | (record-operation 'name) |
e037e9db LC |
817 | (write-int (operation-id name) buffered) |
818 | (write-arg type arg buffered) | |
77d3cf08 | 819 | ... |
e037e9db LC |
820 | (write-buffered-output server) |
821 | ||
dcee50c1 LC |
822 | ;; Loop until the server is done sending error output. |
823 | (let loop ((done? (process-stderr server))) | |
824 | (or done? (loop (process-stderr server)))) | |
3259877d | 825 | (values (read-arg return s) ...)))))) |
77d3cf08 | 826 | |
fd060fd3 LC |
827 | (define-syntax-rule (define-operation (name args ...) |
828 | docstring return ...) | |
829 | (define name | |
830 | (operation (name args ...) docstring return ...))) | |
831 | ||
31ef99a8 | 832 | (define-operation (valid-path? (string path)) |
06b76acc LC |
833 | "Return #t when PATH designates a valid store item and #f otherwise (an |
834 | invalid item may exist on disk but still be invalid, for instance because it | |
835 | is the result of an aborted or failed build.) | |
836 | ||
837 | A '&nix-protocol-error' condition is raised if PATH is not prefixed by the | |
838 | store directory (/gnu/store)." | |
31ef99a8 LC |
839 | boolean) |
840 | ||
63193ebf | 841 | (define-operation (query-path-hash (store-path path)) |
aa8fff0c | 842 | "Return the SHA256 hash of the nar serialization of PATH as a bytevector." |
82058eff LC |
843 | base16) |
844 | ||
11e7a6cf LC |
845 | (define hash-part->path |
846 | (let ((query-path-from-hash-part | |
847 | (operation (query-path-from-hash-part (string hash)) | |
848 | #f | |
849 | store-path))) | |
850 | (lambda (server hash-part) | |
851 | "Return the store path whose hash part is HASH-PART (a nix-base32 | |
852 | string). Raise an error if no such path exists." | |
853 | ;; This RPC is primarily used by Hydra to reply to HTTP GETs of | |
854 | ;; /HASH.narinfo. | |
855 | (query-path-from-hash-part server hash-part)))) | |
856 | ||
533d1768 DT |
857 | (define-operation (query-path-info (store-path path)) |
858 | "Return the info (hash, references, etc.) for PATH." | |
859 | path-info) | |
860 | ||
0d268c5d | 861 | (define add-data-to-store |
fd060fd3 LC |
862 | ;; A memoizing version of `add-to-store', to avoid repeated RPCs with |
863 | ;; the very same arguments during a given session. | |
864 | (let ((add-text-to-store | |
0d268c5d | 865 | (operation (add-text-to-store (string name) (bytevector text) |
fd060fd3 LC |
866 | (string-list references)) |
867 | #f | |
868 | store-path))) | |
0d268c5d LC |
869 | (lambda* (server name bytes #:optional (references '())) |
870 | "Add BYTES under file NAME in the store, and return its store path. | |
bdcf35a6 LC |
871 | REFERENCES is the list of store paths referred to by the resulting store |
872 | path." | |
0d268c5d LC |
873 | (let* ((args `(,bytes ,name ,references)) |
874 | (cache (nix-server-add-text-to-store-cache server))) | |
bdcf35a6 | 875 | (or (hash-ref cache args) |
0d268c5d | 876 | (let ((path (add-text-to-store server name bytes references))) |
bdcf35a6 LC |
877 | (hash-set! cache args path) |
878 | path)))))) | |
879 | ||
0d268c5d LC |
880 | (define* (add-text-to-store store name text #:optional (references '())) |
881 | "Add TEXT under file NAME in the store, and return its store path. | |
882 | REFERENCES is the list of store paths referred to by the resulting store | |
883 | path." | |
884 | (add-data-to-store store name (string->utf8 text) references)) | |
885 | ||
1ec32f4a LC |
886 | (define true |
887 | ;; Define it once and for all since we use it as a default value for | |
888 | ;; 'add-to-store' and want to make sure two default values are 'eq?' for the | |
889 | ;; purposes or memoization. | |
890 | (lambda (file stat) | |
891 | #t)) | |
892 | ||
fd060fd3 | 893 | (define add-to-store |
a7b6ffee LC |
894 | ;; A memoizing version of `add-to-store'. This is important because |
895 | ;; `add-to-store' leads to huge data transfers to the server, and | |
896 | ;; because it's often called many times with the very same argument. | |
1ec32f4a LC |
897 | (let ((add-to-store |
898 | (lambda* (server basename recursive? hash-algo file-name | |
899 | #:key (select? true)) | |
900 | ;; We don't use the 'operation' macro so we can pass SELECT? to | |
901 | ;; 'write-file'. | |
0ca3d556 | 902 | (record-operation 'add-to-store) |
1ec32f4a LC |
903 | (let ((port (nix-server-socket server))) |
904 | (write-int (operation-id add-to-store) port) | |
905 | (write-string basename port) | |
906 | (write-int 1 port) ;obsolete, must be #t | |
907 | (write-int (if recursive? 1 0) port) | |
908 | (write-string hash-algo port) | |
909 | (write-file file-name port #:select? select?) | |
910 | (let loop ((done? (process-stderr server))) | |
911 | (or done? (loop (process-stderr server)))) | |
912 | (read-store-path port))))) | |
913 | (lambda* (server basename recursive? hash-algo file-name | |
914 | #:key (select? true)) | |
a9ebd9ef | 915 | "Add the contents of FILE-NAME under BASENAME to the store. When |
69792b28 LC |
916 | RECURSIVE? is false, FILE-NAME must designate a regular file--not a directory |
917 | nor a symlink. When RECURSIVE? is true and FILE-NAME designates a directory, | |
918 | the contents of FILE-NAME are added recursively; if FILE-NAME designates a | |
919 | flat file and RECURSIVE? is true, its contents are added, and its permission | |
1ec32f4a LC |
920 | bits are kept. HASH-ALGO must be a string such as \"sha256\". |
921 | ||
922 | When RECURSIVE? is true, call (SELECT? FILE STAT) for each directory entry, | |
923 | where FILE is the entry's absolute file name and STAT is the result of | |
924 | 'lstat'; exclude entries for which SELECT? does not return true." | |
b4671215 LC |
925 | ;; Note: We don't stat FILE-NAME at each call, and thus we assume that |
926 | ;; the file remains unchanged for the lifetime of SERVER. | |
927 | (let* ((args `(,file-name ,basename ,recursive? ,hash-algo ,select?)) | |
2c3f47ee | 928 | (cache (nix-server-add-to-store-cache server))) |
b4671215 | 929 | (or (hash-ref cache args) |
1ec32f4a LC |
930 | (let ((path (add-to-store server basename recursive? |
931 | hash-algo file-name | |
932 | #:select? select?))) | |
a7b6ffee LC |
933 | (hash-set! cache args path) |
934 | path)))))) | |
935 | ||
07e70f48 LC |
936 | (define build-things |
937 | (let ((build (operation (build-things (string-list things) | |
938 | (integer mode)) | |
939 | "Do it!" | |
2734cbb8 LC |
940 | boolean)) |
941 | (build/old (operation (build-things (string-list things)) | |
942 | "Do it!" | |
943 | boolean))) | |
07e70f48 LC |
944 | (lambda* (store things #:optional (mode (build-mode normal))) |
945 | "Build THINGS, a list of store items which may be either '.drv' files or | |
abac874b LC |
946 | outputs, and return when the worker is done building them. Elements of THINGS |
947 | that are not derivations can only be substituted and not built locally. | |
dcee50c1 | 948 | Return #t on success." |
2734cbb8 LC |
949 | (if (>= (nix-server-minor-version store) 15) |
950 | (build store things mode) | |
951 | (if (= mode (build-mode normal)) | |
952 | (build/old store things) | |
953 | (raise (condition (&nix-protocol-error | |
954 | (message "unsupported build mode") | |
955 | (status 1))))))))) | |
26bbbb95 | 956 | |
d3648e01 LC |
957 | (define-operation (add-temp-root (store-path path)) |
958 | "Make PATH a temporary root for the duration of the current session. | |
959 | Return #t." | |
960 | boolean) | |
961 | ||
34811f02 | 962 | (define-operation (add-indirect-root (string file-name)) |
a9d2a105 LC |
963 | "Make the symlink FILE-NAME an indirect root for the garbage collector: |
964 | whatever store item FILE-NAME points to will not be collected. Return #t on | |
965 | success. | |
966 | ||
967 | FILE-NAME can be anywhere on the file system, but it must be an absolute file | |
968 | name--it is the caller's responsibility to ensure that it is an absolute file | |
969 | name." | |
34811f02 LC |
970 | boolean) |
971 | ||
a9d2a105 LC |
972 | (define %gc-roots-directory |
973 | ;; The place where garbage collector roots (symlinks) are kept. | |
974 | (string-append %state-directory "/gcroots")) | |
975 | ||
976 | (define (add-permanent-root target) | |
977 | "Add a garbage collector root pointing to TARGET, an element of the store, | |
978 | preventing TARGET from even being collected. This can also be used if TARGET | |
979 | does not exist yet. | |
980 | ||
981 | Raise an error if the caller does not have write access to the GC root | |
982 | directory." | |
983 | (let* ((root (string-append %gc-roots-directory "/" (basename target)))) | |
984 | (catch 'system-error | |
985 | (lambda () | |
986 | (symlink target root)) | |
987 | (lambda args | |
988 | ;; If ROOT already exists, this is fine; otherwise, re-throw. | |
989 | (unless (= EEXIST (system-error-errno args)) | |
990 | (apply throw args)))))) | |
991 | ||
992 | (define (remove-permanent-root target) | |
993 | "Remove the permanent garbage collector root pointing to TARGET. Raise an | |
994 | error if there is no such root." | |
995 | (delete-file (string-append %gc-roots-directory "/" (basename target)))) | |
996 | ||
fae31edc LC |
997 | (define references |
998 | (operation (query-references (store-path path)) | |
999 | "Return the list of references of PATH." | |
1000 | store-path-list)) | |
1001 | ||
f09aea1b LC |
1002 | (define %reference-cache |
1003 | ;; Brute-force cache mapping store items to their list of references. | |
1004 | ;; Caching matters because when building a profile in the presence of | |
1005 | ;; grafts, we keep calling 'graft-derivation', which in turn calls | |
1006 | ;; 'references/substitutes' many times with the same arguments. Ideally we | |
1007 | ;; would use a cache associated with the daemon connection instead (XXX). | |
1008 | (make-hash-table 100)) | |
1009 | ||
6581ec9a LC |
1010 | (define (references/substitutes store items) |
1011 | "Return the list of list of references of ITEMS; the result has the same | |
1012 | length as ITEMS. Query substitute information for any item missing from the | |
1013 | store at once. Raise a '&nix-protocol-error' exception if reference | |
1014 | information for one of ITEMS is missing." | |
b2fde480 LC |
1015 | (let* ((requested items) |
1016 | (local-refs (map (lambda (item) | |
f09aea1b LC |
1017 | (or (hash-ref %reference-cache item) |
1018 | (guard (c ((nix-protocol-error? c) #f)) | |
1019 | (references store item)))) | |
6581ec9a LC |
1020 | items)) |
1021 | (missing (fold-right (lambda (item local-ref result) | |
1022 | (if local-ref | |
1023 | result | |
1024 | (cons item result))) | |
1025 | '() | |
1026 | items local-refs)) | |
1027 | ||
1028 | ;; Query all the substitutes at once to minimize the cost of | |
1029 | ;; launching 'guix substitute' and making HTTP requests. | |
2633bd32 LC |
1030 | (substs (if (null? missing) |
1031 | '() | |
1032 | (substitutable-path-info store missing)))) | |
6581ec9a LC |
1033 | (when (< (length substs) (length missing)) |
1034 | (raise (condition (&nix-protocol-error | |
1035 | (message "cannot determine \ | |
1036 | the list of references") | |
1037 | (status 1))))) | |
1038 | ||
1039 | ;; Intersperse SUBSTS and LOCAL-REFS. | |
dd78e90a LC |
1040 | (let loop ((items items) |
1041 | (local-refs local-refs) | |
6581ec9a | 1042 | (result '())) |
dd78e90a | 1043 | (match items |
6581ec9a | 1044 | (() |
f09aea1b LC |
1045 | (let ((result (reverse result))) |
1046 | (for-each (cut hash-set! %reference-cache <> <>) | |
b2fde480 | 1047 | requested result) |
f09aea1b | 1048 | result)) |
dd78e90a LC |
1049 | ((item items ...) |
1050 | (match local-refs | |
1051 | ((#f tail ...) | |
1052 | (loop items tail | |
1053 | (cons (any (lambda (subst) | |
1054 | (and (string=? (substitutable-path subst) item) | |
1055 | (substitutable-references subst))) | |
1056 | substs) | |
1057 | result))) | |
1058 | ((head tail ...) | |
1059 | (loop items tail | |
1060 | (cons head result))))))))) | |
6581ec9a | 1061 | |
f6fee16e | 1062 | (define* (fold-path store proc seed paths |
3f1e6939 | 1063 | #:optional (relatives (cut references store <>))) |
f6fee16e | 1064 | "Call PROC for each of the RELATIVES of PATHS, exactly once, and return the |
3f1e6939 LC |
1065 | result formed from the successive calls to PROC, the first of which is passed |
1066 | SEED." | |
f6fee16e | 1067 | (let loop ((paths paths) |
3f1e6939 LC |
1068 | (result seed) |
1069 | (seen vlist-null)) | |
1070 | (match paths | |
1071 | ((path rest ...) | |
1072 | (if (vhash-assoc path seen) | |
1073 | (loop rest result seen) | |
1074 | (let ((seen (vhash-cons path #t seen)) | |
1075 | (rest (append rest (relatives path))) | |
1076 | (result (proc path result))) | |
1077 | (loop rest result seen)))) | |
1078 | (() | |
1079 | result)))) | |
1080 | ||
f6fee16e LC |
1081 | (define (requisites store paths) |
1082 | "Return the requisites of PATHS, including PATHS---i.e., their closures (all | |
1083 | its references, recursively)." | |
1084 | (fold-path store cons '() paths)) | |
3f1e6939 | 1085 | |
50add477 LC |
1086 | (define (topologically-sorted store paths) |
1087 | "Return a list containing PATHS and all their references sorted in | |
1088 | topological order." | |
1089 | (define (traverse) | |
1090 | ;; Do a simple depth-first traversal of all of PATHS. | |
1091 | (let loop ((paths paths) | |
1092 | (visited vlist-null) | |
1093 | (result '())) | |
1094 | (define (visit n) | |
1095 | (vhash-cons n #t visited)) | |
1096 | ||
1097 | (define (visited? n) | |
1098 | (vhash-assoc n visited)) | |
1099 | ||
1100 | (match paths | |
1101 | ((head tail ...) | |
1102 | (if (visited? head) | |
1103 | (loop tail visited result) | |
1104 | (call-with-values | |
1105 | (lambda () | |
1106 | (loop (references store head) | |
1107 | (visit head) | |
1108 | result)) | |
1109 | (lambda (visited result) | |
1110 | (loop tail | |
1111 | visited | |
1112 | (cons head result)))))) | |
1113 | (() | |
1114 | (values visited result))))) | |
1115 | ||
1116 | (call-with-values traverse | |
1117 | (lambda (_ result) | |
1118 | (reverse result)))) | |
1119 | ||
fae31edc LC |
1120 | (define referrers |
1121 | (operation (query-referrers (store-path path)) | |
1122 | "Return the list of path that refer to PATH." | |
1123 | store-path-list)) | |
1124 | ||
1125 | (define valid-derivers | |
1126 | (operation (query-valid-derivers (store-path path)) | |
1127 | "Return the list of valid \"derivers\" of PATH---i.e., all the | |
1128 | .drv present in the store that have PATH among their outputs." | |
1129 | store-path-list)) | |
1130 | ||
1131 | (define query-derivation-outputs ; avoid name clash with `derivation-outputs' | |
1132 | (operation (query-derivation-outputs (store-path path)) | |
1133 | "Return the list of outputs of PATH, a .drv file." | |
1134 | store-path-list)) | |
1135 | ||
0f3d2504 LC |
1136 | (define-operation (has-substitutes? (store-path path)) |
1137 | "Return #t if binary substitutes are available for PATH, and #f otherwise." | |
1138 | boolean) | |
1139 | ||
1140 | (define substitutable-paths | |
1141 | (operation (query-substitutable-paths (store-path-list paths)) | |
1142 | "Return the subset of PATHS that is substitutable." | |
1143 | store-path-list)) | |
1144 | ||
1145 | (define substitutable-path-info | |
f65cf81a | 1146 | (operation (query-substitutable-path-infos (store-path-list paths)) |
0f3d2504 LC |
1147 | "Return information about the subset of PATHS that is |
1148 | substitutable. For each substitutable path, a `substitutable?' object is | |
dd78e90a LC |
1149 | returned; thus, the resulting list can be shorter than PATHS. Furthermore, |
1150 | that there is no guarantee that the order of the resulting list matches the | |
1151 | order of PATHS." | |
0f3d2504 LC |
1152 | substitutable-path-list)) |
1153 | ||
f9aefa2d LC |
1154 | (define built-in-builders |
1155 | (let ((builders (operation (built-in-builders) | |
1156 | "Return the built-in builders." | |
1157 | string-list))) | |
1158 | (lambda (store) | |
1159 | "Return the names of the supported built-in derivation builders | |
1160 | supported by STORE." | |
1161 | ;; Check whether STORE's version supports this RPC and built-in | |
1162 | ;; derivation builders in general, which appeared in Guix > 0.11.0. | |
1163 | ;; Return the empty list if it doesn't. Note that this RPC does not | |
1164 | ;; exist in 'nix-daemon'. | |
1165 | (if (or (> (nix-server-major-version store) #x100) | |
1166 | (and (= (nix-server-major-version store) #x100) | |
1167 | (>= (nix-server-minor-version store) #x60))) | |
1168 | (builders store) | |
1169 | '())))) | |
1170 | ||
e3fd0ce6 LC |
1171 | (define-operation (optimize-store) |
1172 | "Optimize the store by hard-linking identical files (\"deduplication\".) | |
1173 | Return #t on success." | |
1174 | ;; Note: the daemon in Guix <= 0.8.2 does not implement this RPC. | |
1175 | boolean) | |
1176 | ||
c63d9403 LC |
1177 | (define verify-store |
1178 | (let ((verify (operation (verify-store (boolean check-contents?) | |
1179 | (boolean repair?)) | |
1180 | "Verify the store." | |
1181 | boolean))) | |
1182 | (lambda* (store #:key check-contents? repair?) | |
1183 | "Verify the integrity of the store and return false if errors remain, | |
1184 | and true otherwise. When REPAIR? is true, repair any missing or altered store | |
1185 | items by substituting them (this typically requires root privileges because it | |
1186 | is not an atomic operation.) When CHECK-CONTENTS? is true, check the contents | |
1187 | of store items; this can take a lot of time." | |
1188 | (not (verify store check-contents? repair?))))) | |
1189 | ||
3259877d LC |
1190 | (define (run-gc server action to-delete min-freed) |
1191 | "Perform the garbage-collector operation ACTION, one of the | |
1192 | `gc-action' values. When ACTION is `delete-specific', the TO-DELETE is | |
1193 | the list of store paths to delete. IGNORE-LIVENESS? should always be | |
1194 | #f. MIN-FREED is the minimum amount of disk space to be freed, in | |
1195 | bytes, before the GC can stop. Return the list of store paths delete, | |
1196 | and the number of bytes freed." | |
1197 | (let ((s (nix-server-socket server))) | |
1198 | (write-int (operation-id collect-garbage) s) | |
1199 | (write-int action s) | |
1200 | (write-store-path-list to-delete s) | |
1201 | (write-arg boolean #f s) ; ignore-liveness? | |
1202 | (write-long-long min-freed s) | |
1203 | (write-int 0 s) ; obsolete | |
1204 | (when (>= (nix-server-minor-version server) 5) | |
1205 | ;; Obsolete `use-atime' and `max-atime' parameters. | |
1206 | (write-int 0 s) | |
1207 | (write-int 0 s)) | |
1208 | ||
1209 | ;; Loop until the server is done sending error output. | |
1210 | (let loop ((done? (process-stderr server))) | |
1211 | (or done? (loop (process-stderr server)))) | |
1212 | ||
1213 | (let ((paths (read-store-path-list s)) | |
1214 | (freed (read-long-long s)) | |
1215 | (obsolete (read-long-long s))) | |
000c59b6 LC |
1216 | (unless (null? paths) |
1217 | ;; To be on the safe side, completely invalidate both caches. | |
1218 | ;; Otherwise we could end up returning store paths that are no longer | |
1219 | ;; valid. | |
1220 | (hash-clear! (nix-server-add-to-store-cache server)) | |
1221 | (hash-clear! (nix-server-add-text-to-store-cache server))) | |
1222 | ||
3259877d LC |
1223 | (values paths freed)))) |
1224 | ||
1225 | (define-syntax-rule (%long-long-max) | |
1226 | ;; Maximum unsigned 64-bit integer. | |
1227 | (- (expt 2 64) 1)) | |
1228 | ||
1229 | (define (live-paths server) | |
1230 | "Return the list of live store paths---i.e., store paths still | |
1231 | referenced, and thus not subject to being garbage-collected." | |
1232 | (run-gc server (gc-action return-live) '() (%long-long-max))) | |
1233 | ||
1234 | (define (dead-paths server) | |
1235 | "Return the list of dead store paths---i.e., store paths no longer | |
1236 | referenced, and thus subject to being garbage-collected." | |
1237 | (run-gc server (gc-action return-dead) '() (%long-long-max))) | |
1238 | ||
1239 | (define* (collect-garbage server #:optional (min-freed (%long-long-max))) | |
1240 | "Collect garbage from the store at SERVER. If MIN-FREED is non-zero, | |
1241 | then collect at least MIN-FREED bytes. Return the paths that were | |
1242 | collected, and the number of bytes freed." | |
1243 | (run-gc server (gc-action delete-dead) '() min-freed)) | |
1244 | ||
1245 | (define* (delete-paths server paths #:optional (min-freed (%long-long-max))) | |
1246 | "Delete PATHS from the store at SERVER, if they are no longer | |
1247 | referenced. If MIN-FREED is non-zero, then stop after at least | |
1248 | MIN-FREED bytes have been collected. Return the paths that were | |
1249 | collected, and the number of bytes freed." | |
1250 | (run-gc server (gc-action delete-specific) paths min-freed)) | |
1251 | ||
526382ff LC |
1252 | (define (import-paths server port) |
1253 | "Import the set of store paths read from PORT into SERVER's store. An error | |
1254 | is raised if the set of paths read from PORT is not signed (as per | |
1255 | 'export-path #:sign? #t'.) Return the list of store paths imported." | |
1256 | (let ((s (nix-server-socket server))) | |
1257 | (write-int (operation-id import-paths) s) | |
1258 | (let loop ((done? (process-stderr server port))) | |
1259 | (or done? (loop (process-stderr server port)))) | |
1260 | (read-store-path-list s))) | |
1261 | ||
1262 | (define* (export-path server path port #:key (sign? #t)) | |
1263 | "Export PATH to PORT. When SIGN? is true, sign it." | |
1264 | (let ((s (nix-server-socket server))) | |
1265 | (write-int (operation-id export-path) s) | |
1266 | (write-store-path path s) | |
1267 | (write-arg boolean sign? s) | |
1268 | (let loop ((done? (process-stderr server port))) | |
1269 | (or done? (loop (process-stderr server port)))) | |
1270 | (= 1 (read-int s)))) | |
1271 | ||
5b3d863f | 1272 | (define* (export-paths server paths port #:key (sign? #t) recursive?) |
99fbddf9 | 1273 | "Export the store paths listed in PATHS to PORT, in topological order, |
5b3d863f LC |
1274 | signing them if SIGN? is true. When RECURSIVE? is true, export the closure of |
1275 | PATHS---i.e., PATHS and all their dependencies." | |
cafb92d8 | 1276 | (define ordered |
5b3d863f LC |
1277 | (let ((sorted (topologically-sorted server paths))) |
1278 | ;; When RECURSIVE? is #f, filter out the references of PATHS. | |
1279 | (if recursive? | |
1280 | sorted | |
1281 | (filter (cut member <> paths) sorted)))) | |
cafb92d8 | 1282 | |
1d506993 LC |
1283 | (let loop ((paths ordered)) |
1284 | (match paths | |
1285 | (() | |
1286 | (write-int 0 port)) | |
1287 | ((head tail ...) | |
1288 | (write-int 1 port) | |
1289 | (and (export-path server head port #:sign? sign?) | |
1290 | (loop tail)))))) | |
526382ff | 1291 | |
16748d80 LC |
1292 | (define-operation (query-failed-paths) |
1293 | "Return the list of store items for which a build failure is cached. | |
1294 | ||
1295 | The result is always the empty list unless the daemon was started with | |
1296 | '--cache-failures'." | |
1297 | store-path-list) | |
1298 | ||
1299 | (define-operation (clear-failed-paths (store-path-list items)) | |
1300 | "Remove ITEMS from the list of cached build failures. | |
1301 | ||
1302 | This makes sense only when the daemon was started with '--cache-failures'." | |
1303 | boolean) | |
1304 | ||
6bfec3ed | 1305 | (define* (register-path path |
689142cd LC |
1306 | #:key (references '()) deriver prefix |
1307 | state-directory) | |
6bfec3ed | 1308 | "Register PATH as a valid store file, with REFERENCES as its list of |
bb31e0a3 LC |
1309 | references, and DERIVER as its deriver (.drv that led to it.) If PREFIX is |
1310 | not #f, it must be the name of the directory containing the new store to | |
689142cd LC |
1311 | initialize; if STATE-DIRECTORY is not #f, it must be a string containing the |
1312 | absolute file name to the state directory of the store being initialized. | |
1313 | Return #t on success. | |
6bfec3ed LC |
1314 | |
1315 | Use with care as it directly modifies the store! This is primarily meant to | |
1316 | be used internally by the daemon's build hook." | |
1317 | ;; Currently this is implemented by calling out to the fine C++ blob. | |
95fa173e LC |
1318 | (let ((pipe (apply open-pipe* OPEN_WRITE %guix-register-program |
1319 | `(,@(if prefix | |
1320 | `("--prefix" ,prefix) | |
1321 | '()) | |
1322 | ,@(if state-directory | |
1323 | `("--state-directory" ,state-directory) | |
1324 | '()))))) | |
1325 | (and pipe | |
1326 | (begin | |
1327 | (format pipe "~a~%~a~%~a~%" | |
1328 | path (or deriver "") (length references)) | |
1329 | (for-each (cut format pipe "~a~%" <>) references) | |
1330 | (zero? (close-pipe pipe)))))) | |
6bfec3ed | 1331 | |
26bbbb95 | 1332 | \f |
e87f0591 LC |
1333 | ;;; |
1334 | ;;; Store monad. | |
1335 | ;;; | |
1336 | ||
4e190c28 LC |
1337 | (define-syntax-rule (define-alias new old) |
1338 | (define-syntax new (identifier-syntax old))) | |
e87f0591 | 1339 | |
4e190c28 LC |
1340 | ;; The store monad allows us to (1) build sequences of operations in the |
1341 | ;; store, and (2) make the store an implicit part of the execution context, | |
1342 | ;; rather than a parameter of every single function. | |
1343 | (define-alias %store-monad %state-monad) | |
1344 | (define-alias store-return state-return) | |
1345 | (define-alias store-bind state-bind) | |
e87f0591 | 1346 | |
dcb95c1f LC |
1347 | ;; Instantiate templates for %STORE-MONAD since it's syntactically different |
1348 | ;; from %STATE-MONAD. | |
1349 | (template-directory instantiations %store-monad) | |
1350 | ||
5808dcc2 LC |
1351 | (define (preserve-documentation original proc) |
1352 | "Return PROC with documentation taken from ORIGINAL." | |
1353 | (set-object-property! proc 'documentation | |
1354 | (procedure-property original 'documentation)) | |
1355 | proc) | |
1356 | ||
e87f0591 LC |
1357 | (define (store-lift proc) |
1358 | "Lift PROC, a procedure whose first argument is a connection to the store, | |
1359 | in the store monad." | |
5808dcc2 LC |
1360 | (preserve-documentation proc |
1361 | (lambda args | |
1362 | (lambda (store) | |
1363 | (values (apply proc store args) store))))) | |
e87f0591 | 1364 | |
023d9892 LC |
1365 | (define (store-lower proc) |
1366 | "Lower PROC, a monadic procedure in %STORE-MONAD, to a \"normal\" procedure | |
1367 | taking the store as its first argument." | |
5808dcc2 LC |
1368 | (preserve-documentation proc |
1369 | (lambda (store . args) | |
1370 | (run-with-store store (apply proc args))))) | |
023d9892 | 1371 | |
e87f0591 LC |
1372 | ;; |
1373 | ;; Store monad operators. | |
1374 | ;; | |
1375 | ||
ad372953 LC |
1376 | (define* (text-file name text |
1377 | #:optional (references '())) | |
e87f0591 | 1378 | "Return as a monadic value the absolute file name in the store of the file |
ad372953 LC |
1379 | containing TEXT, a string. REFERENCES is a list of store items that the |
1380 | resulting text file refers to; it defaults to the empty list." | |
e87f0591 | 1381 | (lambda (store) |
ad372953 | 1382 | (values (add-text-to-store store name text references) |
4e190c28 | 1383 | store))) |
e87f0591 LC |
1384 | |
1385 | (define* (interned-file file #:optional name | |
1ec32f4a | 1386 | #:key (recursive? #t) (select? true)) |
e87f0591 LC |
1387 | "Return the name of FILE once interned in the store. Use NAME as its store |
1388 | name, or the basename of FILE if NAME is omitted. | |
1389 | ||
1390 | When RECURSIVE? is true, the contents of FILE are added recursively; if FILE | |
1391 | designates a flat file and RECURSIVE? is true, its contents are added, and its | |
1ec32f4a LC |
1392 | permission bits are kept. |
1393 | ||
1394 | When RECURSIVE? is true, call (SELECT? FILE STAT) for each directory entry, | |
1395 | where FILE is the entry's absolute file name and STAT is the result of | |
1396 | 'lstat'; exclude entries for which SELECT? does not return true." | |
e87f0591 | 1397 | (lambda (store) |
4e190c28 | 1398 | (values (add-to-store store (or name (basename file)) |
1ec32f4a LC |
1399 | recursive? "sha256" file |
1400 | #:select? select?) | |
4e190c28 | 1401 | store))) |
e87f0591 | 1402 | |
abac874b LC |
1403 | (define build |
1404 | ;; Monadic variant of 'build-things'. | |
1405 | (store-lift build-things)) | |
1406 | ||
4f740b67 AK |
1407 | (define set-build-options* |
1408 | (store-lift set-build-options)) | |
1409 | ||
e74f64b9 LC |
1410 | (define references* |
1411 | (store-lift references)) | |
1412 | ||
98a7b528 LC |
1413 | (define-inlinable (current-system) |
1414 | ;; Consult the %CURRENT-SYSTEM fluid at bind time. This is equivalent to | |
1415 | ;; (lift0 %current-system %store-monad), but inlinable, thus avoiding | |
1416 | ;; closure allocation in some cases. | |
1417 | (lambda (state) | |
1418 | (values (%current-system) state))) | |
1419 | ||
1420 | (define-inlinable (set-current-system system) | |
1421 | ;; Set the %CURRENT-SYSTEM fluid at bind time. | |
1422 | (lambda (state) | |
1423 | (values (%current-system system) state))) | |
1424 | ||
e87f0591 LC |
1425 | (define %guile-for-build |
1426 | ;; The derivation of the Guile to be used within the build environment, | |
1427 | ;; when using 'gexp->derivation' and co. | |
1428 | (make-parameter #f)) | |
1429 | ||
1430 | (define* (run-with-store store mval | |
1431 | #:key | |
1432 | (guile-for-build (%guile-for-build)) | |
45bba475 LC |
1433 | (system (%current-system)) |
1434 | (target #f)) | |
e87f0591 | 1435 | "Run MVAL, a monadic value in the store monad, in STORE, an open store |
3698f524 | 1436 | connection, and return the result." |
a8afb9ae LC |
1437 | ;; Initialize the dynamic bindings here to avoid bad surprises. The |
1438 | ;; difficulty lies in the fact that dynamic bindings are resolved at | |
1439 | ;; bind-time and not at call time, which can be disconcerting. | |
e87f0591 | 1440 | (parameterize ((%guile-for-build guile-for-build) |
a8afb9ae | 1441 | (%current-system system) |
45bba475 | 1442 | (%current-target-system target)) |
3698f524 LC |
1443 | (call-with-values (lambda () |
1444 | (run-with-state mval store)) | |
1445 | (lambda (result store) | |
1446 | ;; Discard the state. | |
1447 | result)))) | |
e87f0591 LC |
1448 | |
1449 | \f | |
26bbbb95 LC |
1450 | ;;; |
1451 | ;;; Store paths. | |
1452 | ;;; | |
1453 | ||
1454 | (define %store-prefix | |
1455 | ;; Absolute path to the Nix store. | |
1d6816f9 | 1456 | (make-parameter %store-directory)) |
26bbbb95 | 1457 | |
cd041b26 LC |
1458 | (define (compressed-hash bv size) ; `compressHash' |
1459 | "Given the hash stored in BV, return a compressed version thereof that fits | |
1460 | in SIZE bytes." | |
1461 | (define new (make-bytevector size 0)) | |
1462 | (define old-size (bytevector-length bv)) | |
1463 | (let loop ((i 0)) | |
1464 | (if (= i old-size) | |
1465 | new | |
1466 | (let* ((j (modulo i size)) | |
1467 | (o (bytevector-u8-ref new j))) | |
1468 | (bytevector-u8-set! new j | |
1469 | (logxor o (bytevector-u8-ref bv i))) | |
1470 | (loop (+ 1 i)))))) | |
1471 | ||
1472 | (define (store-path type hash name) ; makeStorePath | |
1473 | "Return the store path for NAME/HASH/TYPE." | |
1474 | (let* ((s (string-append type ":sha256:" | |
1475 | (bytevector->base16-string hash) ":" | |
1476 | (%store-prefix) ":" name)) | |
1477 | (h (sha256 (string->utf8 s))) | |
1478 | (c (compressed-hash h 20))) | |
1479 | (string-append (%store-prefix) "/" | |
1480 | (bytevector->nix-base32-string c) "-" | |
1481 | name))) | |
1482 | ||
1483 | (define (output-path output hash name) ; makeOutputPath | |
1484 | "Return an output path for OUTPUT (the name of the output as a string) of | |
1485 | the derivation called NAME with hash HASH." | |
1486 | (store-path (string-append "output:" output) hash | |
1487 | (if (string=? output "out") | |
1488 | name | |
1489 | (string-append name "-" output)))) | |
1490 | ||
1491 | (define* (fixed-output-path name hash | |
1492 | #:key | |
1493 | (output "out") | |
1494 | (hash-algo 'sha256) | |
1495 | (recursive? #t)) | |
1496 | "Return an output path for the fixed output OUTPUT defined by HASH of type | |
1497 | HASH-ALGO, of the derivation NAME. RECURSIVE? has the same meaning as for | |
1498 | 'add-to-store'." | |
1499 | (if (and recursive? (eq? hash-algo 'sha256)) | |
1500 | (store-path "source" hash name) | |
1501 | (let ((tag (string-append "fixed:" output ":" | |
1502 | (if recursive? "r:" "") | |
1503 | (symbol->string hash-algo) ":" | |
1504 | (bytevector->base16-string hash) ":"))) | |
1505 | (store-path (string-append "output:" output) | |
1506 | (sha256 (string->utf8 tag)) | |
1507 | name)))) | |
1508 | ||
f39bd08a LC |
1509 | (define (store-path? path) |
1510 | "Return #t if PATH is a store path." | |
1511 | ;; This is a lightweight check, compared to using a regexp, but this has to | |
1512 | ;; be fast as it's called often in `derivation', for instance. | |
1513 | ;; `isStorePath' in Nix does something similar. | |
1514 | (string-prefix? (%store-prefix) path)) | |
26bbbb95 | 1515 | |
9336e5b5 LC |
1516 | (define (direct-store-path? path) |
1517 | "Return #t if PATH is a store path, and not a sub-directory of a store path. | |
1518 | This predicate is sometimes needed because files *under* a store path are not | |
1519 | valid inputs." | |
1520 | (and (store-path? path) | |
eee21271 | 1521 | (not (string=? path (%store-prefix))) |
9336e5b5 LC |
1522 | (let ((len (+ 1 (string-length (%store-prefix))))) |
1523 | (not (string-index (substring path len) #\/))))) | |
1524 | ||
cdb5b075 CS |
1525 | (define (direct-store-path path) |
1526 | "Return the direct store path part of PATH, stripping components after | |
1527 | '/gnu/store/xxxx-foo'." | |
1528 | (let ((prefix-length (+ (string-length (%store-prefix)) 35))) | |
1529 | (if (> (string-length path) prefix-length) | |
1530 | (let ((slash (string-index path #\/ prefix-length))) | |
1531 | (if slash (string-take path slash) path)) | |
1532 | path))) | |
1533 | ||
26bbbb95 LC |
1534 | (define (derivation-path? path) |
1535 | "Return #t if PATH is a derivation path." | |
1536 | (and (store-path? path) (string-suffix? ".drv" path))) | |
e3d74106 | 1537 | |
5c0f1845 LC |
1538 | (define store-regexp* |
1539 | ;; The substituter makes repeated calls to 'store-path-hash-part', hence | |
1540 | ;; this optimization. | |
55b2d921 LC |
1541 | (mlambda (store) |
1542 | "Return a regexp matching a file in STORE." | |
1543 | (make-regexp (string-append "^" (regexp-quote store) | |
1544 | "/([0-9a-df-np-sv-z]{32})-([^/]+)$")))) | |
5c0f1845 | 1545 | |
e3d74106 LC |
1546 | (define (store-path-package-name path) |
1547 | "Return the package name part of PATH, a file name in the store." | |
5c0f1845 LC |
1548 | (let ((path-rx (store-regexp* (%store-prefix)))) |
1549 | (and=> (regexp-exec path-rx path) | |
1550 | (cut match:substring <> 2)))) | |
2c6ab6cc LC |
1551 | |
1552 | (define (store-path-hash-part path) | |
1553 | "Return the hash part of PATH as a base32 string, or #f if PATH is not a | |
1554 | syntactically valid store path." | |
35eb77b0 LC |
1555 | (and (string-prefix? (%store-prefix) path) |
1556 | (let ((base (string-drop path (+ 1 (string-length (%store-prefix)))))) | |
1557 | (and (> (string-length base) 33) | |
1558 | (let ((hash (string-take base 32))) | |
1559 | (and (string-every %nix-base32-charset hash) | |
1560 | hash)))))) | |
eddd4077 LC |
1561 | |
1562 | (define (log-file store file) | |
1563 | "Return the build log file for FILE, or #f if none could be found. FILE | |
1564 | must be an absolute store file name, or a derivation file name." | |
eddd4077 | 1565 | (cond ((derivation-path? file) |
021a201f | 1566 | (let* ((base (basename file)) |
80d0447c | 1567 | (log (string-append (dirname %state-directory) ; XXX |
f5768afa | 1568 | "/log/guix/drvs/" |
021a201f LC |
1569 | (string-take base 2) "/" |
1570 | (string-drop base 2))) | |
1571 | (log.bz2 (string-append log ".bz2"))) | |
1572 | (cond ((file-exists? log.bz2) log.bz2) | |
1573 | ((file-exists? log) log) | |
1574 | (else #f)))) | |
eddd4077 LC |
1575 | (else |
1576 | (match (valid-derivers store file) | |
1577 | ((derivers ...) | |
1578 | ;; Return the first that works. | |
1579 | (any (cut log-file store <>) derivers)) | |
1580 | (_ #f))))) | |
3b5cd17a LC |
1581 | |
1582 | ;;; Local Variables: | |
1583 | ;;; eval: (put 'system-error-to-connection-error 'scheme-indent-function 1) | |
1584 | ;;; End: |