all messages for Guix-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
blob f1e35a5c651b49c00dad77743557b39a32d387f9 19725 bytes (raw)
name: guix/build/cargo-build-system.scm 	 # note: path name is non-authoritative(*)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
 
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 David Craven <david@craven.ch>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019 Ivan Petkov <ivanppetkov@gmail.com>
;;; Copyright © 2019-2023 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
;;; Copyright © 2020 Marius Bakke <marius@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (guix build cargo-build-system)
  #:use-module ((guix build gnu-build-system) #:prefix gnu:)
  #:use-module (guix build json)
  #:use-module (guix build utils)
  #:use-module (guix build cargo-utils)
  #:use-module (ice-9 popen)
  #:use-module (ice-9 rdelim)
  #:use-module (ice-9 ftw)
  #:use-module (ice-9 format)
  #:use-module (ice-9 match)
  #:use-module (srfi srfi-1)
  #:use-module (srfi srfi-26)
  #:export (%standard-phases
            cargo-build))

;; Commentary:
;;
;; Builder-side code of the standard Rust package build procedure.
;;
;; Code:

(define (manifest-targets)
  "Extract all targets from the Cargo.toml manifest"
  (let* ((port (open-input-pipe "cargo read-manifest"))
         (data (read-json port))
         (targets (or (assoc-ref data "targets") '())))
    (close-port port)
    targets))

(define (has-executable-target?)
  "Check if the current cargo project declares any binary targets."
  (let* ((bin? (lambda (kind) (string=? kind "bin")))
         (get-kinds (lambda (dep) (assoc-ref dep "kind")))
         (bin-dep? (lambda (dep) (find bin? (get-kinds dep)))))
    (find bin-dep? (manifest-targets))))

(define (crate-src? path)
  "Check if PATH refers to a crate source, namely a gzipped tarball with a
Cargo.toml file present at its root."
    (and (not (directory-exists? path)) ; not a tarball
         ;; First we print out all file names within the tarball to see if it
         ;; looks like the source of a crate. However, the tarball will include
         ;; an extra path component which we would like to ignore (since we're
         ;; interested in checking if a Cargo.toml exists at the root of the
         ;; archive, but not nested anywhere else). We do this by cutting up
         ;; each output line and only looking at the second component. We then
         ;; check if it matches Cargo.toml exactly and short circuit if it does.
         (apply invoke (list "sh" "-c"
                             (string-append "tar -tf " path
                                            " | cut -d/ -f2"
                                            " | grep -q '^Cargo.toml$'")))))

(define (rewrite-deps cargo-deps)
  (map (lambda (dependency)
         `(@ ("name" . ,(assoc-ref dependency "name"))
             ("req" . ,(assoc-ref dependency "req"))
             ("features" . ,(assoc-ref dependency "features"))
             ("optional" . ,(assoc-ref dependency "optional"))
             ("default_features" . ,(assoc-ref dependency
                                               "uses_default_features"))
             ("target" . ,(assoc-ref dependency "target"))
             ("kind" . ,(match (assoc-ref dependency "kind")
                               (null? "normal")
                               (kind kind)))
             ("registry" . ,(assoc-ref dependency "registry"))))
       cargo-deps))

(define* (unpack-rust-crates #:key inputs vendor-dir #:allow-other-keys)
  (define (inputs->rust-inputs inputs)
    "Filter using the label part from INPUTS."
    (filter (lambda (input)
              (match input
                ((name . _) (rust-package? name))))
            inputs))
  (define (inputs->directories inputs)
    "Extract the directory part from INPUTS."
    (match inputs
      (((names . directories) ...)
       directories)))

  (let ((rust-inputs (inputs->directories (inputs->rust-inputs inputs))))
    (unless (null? rust-inputs)
      (mkdir-p "target/package")
      (mkdir-p vendor-dir)
      ;; TODO: copy only regular inputs to target/package, not native-inputs.
      (for-each
        (lambda (input-crate)
          (for-each
            (lambda (packaged-crate)
              (unless
                (file-exists?
                  (string-append "target/package/" (basename packaged-crate)))
                (install-file packaged-crate "target/package/")))
            (find-files
              (string-append input-crate "/share/cargo/registry") "\\.crate$")))
        (delete-duplicates rust-inputs))

      (for-each (lambda (crate)
                  (invoke "tar" "xzf" crate "-C" vendor-dir))
                (find-files "target/package" "\\.crate$"))))
  #t)

(define (rust-package? name)
  (string-prefix? "rust-" name))

(define* (check-for-pregenerated-files #:rest _)
  "Check the source code for files which are known to generally be bundled
libraries or executables."
  (let ((pregenerated-files (find-files "." "\\.(a|dll|dylib|exe|lib)$")))
    (when (not (null-list? pregenerated-files))
      (error "Possible pre-generated files found:" pregenerated-files))))

(define* (configure #:key inputs
                    target
                    (vendor-dir "guix-vendor")
                    #:allow-other-keys)
  "Vendor Cargo.toml dependencies as guix inputs."
  (chmod "." #o755)
  ;; Prepare one new directory with all the required dependencies.
  ;; It's necessary to do this (instead of just using /gnu/store as the
  ;; directory) because we want to hide the libraries in subdirectories
  ;; share/rust-source/... instead of polluting the user's profile root.
  (mkdir-p vendor-dir)
  (for-each
    (match-lambda
      ((name . path)
       (let* ((basepath (strip-store-file-name path))
              (crate-dir (string-append vendor-dir "/" basepath)))
         (and (crate-src? path)
              ;; Gracefully handle duplicate inputs
              (not (file-exists? crate-dir))
              (mkdir-p crate-dir)
              ;; Cargo crates are simply gzipped tarballs but with a .crate
              ;; extension. We expand the source to a directory name we control
              ;; so that we can generate any cargo checksums.
              ;; The --strip-components argument is needed to prevent creating
              ;; an extra directory within `crate-dir`.
              (format #t "Unpacking ~a~%" name)
              (invoke "tar" "xf" path "-C" crate-dir "--strip-components" "1")))))
    inputs)

  ;; For cross-building
  (when target
    (setenv "CARGO_BUILD_TARGET"
            ;; Can this be replaced with platform-rust-architecture?
            ;; Keep this synchronized with (guix platforms *)
            (match target
                   ("aarch64-linux-gnu" "aarch64-unknown-linux-gnu")
                   ("arm-linux-gnueabihf" "armv7-unknown-linux-gnueabihf")
                   ("i686-linux-gnu" "i686-unknown-linux-gnu")
                   ("mips64el-linux-gnu" "mips64el-unknown-linux-gnuabi64")
                   ("powerpc-linux-gnu" "powerpc-unknown-linux-gnu")
                   ("powerpc64-linux-gnu" "powerpc64-unknown-linux-gnu")
                   ("powerpc64le-linux-gnu" "powerpc64le-unknown-linux-gnu")
                   ("riscv64-linux-gnu" "riscv64gc-unknown-linux-gnu")
                   ("x86_64-linux-gnu" "x86_64-unknown-linux-gnu")
                   ("i586-pc-gnu" "i686-unknown-hurd-gnu")
                   ("i686-w64-mingw32" "i686-pc-windows-gnu")
                   ("x86_64-w64-mingw32" "x86_64-pc-windows-gnu")
                   (else #f)))
    (setenv "RUSTFLAGS" (string-append
                          (or (getenv "RUSTFLAGS") "")
                          " --sysroot " (assoc-ref inputs "rust-sysroot")))

    (setenv "PKG_CONFIG" (string-append target "-pkg-config"))

    ;; We've removed all the bundled libraries, don't look for them.
    (setenv "WINAPI_NO_BUNDLED_LIBRARIES" "1")

    ;; Prevent targeting the build machine.
    (setenv "CRATE_CC_NO_DEFAULTS" "1"))

  ;; Configure cargo to actually use this new directory with all the crates.
  (setenv "CARGO_HOME" (string-append (getcwd) "/.cargo"))
  (mkdir-p ".cargo")
  ;; Not .cargo/config.toml, rustc/cargo will generate .cargo/config otherwise.
  (let ((port (open-file ".cargo/config" "w" #:encoding "utf-8")))
    ;; Placed here so it doesn't cause random rebuilds.  Neither of these work.
    ;; sysroot = '" (assoc-ref inputs "rust-sysroot") "'
    ;; rustflags = ['--sysroot', '" (assoc-ref inputs "rust-sysroot") "']
    (when target
      (display (string-append "
[target." (getenv "CARGO_BUILD_TARGET") "]
linker = '" target "-gcc'

[build]
target = ['" (getenv "CARGO_BUILD_TARGET") "']") port))
    (display (string-append "
[source.crates-io]
replace-with = 'vendored-sources'

[source.vendored-sources]
directory = '" vendor-dir "'") port)
    (close-port port))

  ;; Lift restriction on any lints: a crate author may have decided to opt
  ;; into stricter lints (e.g. #![deny(warnings)]) during their own builds
  ;; but we don't want any build failures that could be caused later by
  ;; upgrading the compiler for example.
  (setenv "RUSTFLAGS" (string-append (or (getenv "RUSTFLAGS") "")
                                     " --cap-lints allow"))

  (if (assoc-ref inputs "cross-gcc")
    (begin
      (setenv "HOST_CC" "gcc")
      (setenv "TARGET_CC" (string-append target "-gcc"))
      (setenv "TARGET_AR" (string-append target "-ar"))
      (setenv "TARGET_PKG_CONFIG" (string-append target "-pkg-config")))
    (setenv "CC" (string-append (assoc-ref inputs "gcc") "/bin/gcc")))

  (setenv "LIBGIT2_SYS_USE_PKG_CONFIG" "1")
  (setenv "LIBSSH2_SYS_USE_PKG_CONFIG" "1")
  (when (assoc-ref inputs "openssl")
    (setenv "OPENSSL_DIR" (assoc-ref inputs "openssl")))
  (when (assoc-ref inputs "gettext")
    (setenv "GETTEXT_SYSTEM" (assoc-ref inputs "gettext")))
  (when (assoc-ref inputs "clang")
    (setenv "LIBCLANG_PATH"
            (string-append (assoc-ref inputs "clang") "/lib")))

  ;; We don't use the Cargo.lock file to determine the package versions we use
  ;; during building, and in any case if one is not present it is created
  ;; during the 'build phase by cargo.
  (when (file-exists? "Cargo.lock")
    (delete-file "Cargo.lock"))
  #t)

;; After the 'patch-generated-file-shebangs phase any vendored crates who have
;; their shebangs patched will have a mismatch on their checksum.
(define* (patch-cargo-checksums #:key
                                (vendor-dir "guix-vendor")
                                #:allow-other-keys)
  "Patch the checksums of the vendored crates after patching their shebangs."
  (generate-all-checksums vendor-dir)
  #t)

(define* (build #:key
                skip-build?
                (features '())
                (cargo-build-flags '("--release"))
                #:allow-other-keys)
  "Build a given Cargo package."
  (or skip-build?
      (apply invoke
             `("cargo" "build"
               ,@(if (null? features)
                     '()
                     `("--features" ,(string-join features)))
               ,@cargo-build-flags))))

(define* (check #:key
                tests?
                (cargo-test-flags '("--release"))
                #:allow-other-keys)
  "Run tests for a given Cargo package."
  (if tests?
      (apply invoke "cargo" "test" cargo-test-flags)
      #t))

(define* (package #:key
                  source
                  skip-build?
                  install-source?
                  (cargo-package-flags '("--no-metadata" "--no-verify"))
                  #:allow-other-keys)
  "Run 'cargo-package' for a given Cargo package.  Also generate metadata so we can
create a package index for the crates."
  (if install-source?
    (if skip-build?
      (begin
        (install-file source "target/package")
        (with-directory-excursion "target/package"
          (for-each
            (lambda (file)
              (make-file-writable file)
              ;; Strip the hash and rust prefix and replace '.tar.gz' with '.crate'.
              (rename-file file
                           (string-append (string-drop-right
                                            (string-drop file 40)
                                            (string-length ".tar.gz"))
                                          ".crate")))
            (find-files "." "\\.tar\\.gz$"))))
      (begin
        ;;error: invalid inclusion of reserved file name Cargo.toml.orig in package source
        (when (file-exists? "Cargo.toml.orig")
          (delete-file "Cargo.toml.orig"))
        (apply invoke `("cargo" "package" ,@cargo-package-flags))

        ;; Then unpack the crate, reset the timestamp of all contained files, and
        ;; repack them.  This is necessary to ensure that they are reproducible.
        (with-directory-excursion "target/package"
          (for-each
            (lambda (crate)
              (invoke "tar" "xf" crate)
              (delete-file crate)
              ;; Some of the crate names have underscores, so we need to
              ;; search the current directory to find the unpacked crate.
              (let ((dir
                      (car (scandir "."
                                    (lambda (file)
                                      (and (not (member file '("." "..")))
                                           (not (string-suffix? ".crate" file))))))))
                ;; XXX: copied from (gnu build install)
                (for-each (lambda (file)
                            (let ((s (lstat file)))
                              (unless (eq? (stat:type s) 'symlink)
                                (utime file 0 0 0 0))))
                          (find-files dir #:directories? #t))

                (apply invoke "tar" "czf" (string-append dir ".crate")
                       ;; avoid non-determinism in the archive
                       "--sort=name" "--mtime=@0"
                       "--owner=root:0" "--group=root:0"
                       (find-files dir #:directories? #t))
                (delete-file-recursively dir)))
            (find-files "." "\\.crate$")))))
    (format #t "Not installing cargo sources, skipping `cargo package`.~%"))

  (when install-source?
    ;; First generate the metadata so we can create the index file.
    ;; https://doc.rust-lang.org/cargo/commands/cargo-metadata.html#json-format
    (with-output-to-file "cargo-metadata.json"
      (lambda _
        (invoke "cargo" "metadata"
                "--manifest-path" "Cargo.toml"
                "--format-version" "1"
                "--no-deps")))))

(define* (install #:key
                  outputs
                  skip-build?
                  features
                  #:allow-other-keys)
  "Install a given Cargo package."
  (let ((out (assoc-ref outputs "out")))
    (mkdir-p out)

    ;; Make cargo reuse all the artifacts we just built instead
    ;; of defaulting to making a new temp directory
    (setenv "CARGO_TARGET_DIR" "./target")

    ;; Only install crates which include binary targets,
    ;; otherwise cargo will raise an error.
    (or skip-build?
        (not (has-executable-target?))
        (invoke "cargo" "install" "--no-track" "--path" "." "--root" out
                "--features" (string-join features)))))

(define* (install-sources #:key
                          name
                          outputs
                          install-source?
                          #:allow-other-keys)
  "Install a given Cargo package."
  (let* ((out      (assoc-ref outputs "out"))
         (registry (string-append out "/share/cargo/registry/"))
         (name+ver (if (string-prefix? "rust-" name)
                       (string-drop name 5)
                       name))
         ;; Strip the version if it exists.
         (pkgname  (if (char-set-every
                         (lambda (item)
                           (char-set-contains?
                             (list->char-set (list #\- #\.) char-set:digit) item))
                         (string->char-set
                           (string-drop name+ver (string-index-right name+ver #\-))))
                     (string-take name+ver (string-index-right name+ver #\-))
                     name+ver)))

    (when install-source?
      ;; Install crate tarballs and unpacked sources for later use.
      (for-each (lambda (crate)
                  (install-file crate registry))
                (find-files "target/package" "\\.crate$"))

      (let ((path (match (string-length pkgname)
                         (1 "1")
                         (2 "2")
                         (3 (string-append "3/" (string-take pkgname 1)))
                         (else (string-append (substring pkgname 0 2) "/"
                                              (substring pkgname 2 4)))))
            (cargo-metadata (match (call-with-input-file
                                     "cargo-metadata.json" read-json)
                                   (('@ . alist) alist)))
            (sha256sum (read-delimited
                         " "
                         (open-pipe* OPEN_READ
                                     "sha256sum" "--"
                                     (first (find-files registry pkgname))))))

        ;; Now it's time to generate the actual index file:
        ;; https://doc.rust-lang.org/cargo/reference/registry-index.html#json-schema
        (call-with-output-file pkgname
          (lambda (out)
            (write-json
              `(@ ("name" . ,(assoc-ref
                               (first (assoc-ref cargo-metadata "packages"))
                               "name"))
                  ("vers" . ,(assoc-ref
                               (first (assoc-ref cargo-metadata "packages"))
                               "version"))
                  ("deps" . ,(rewrite-deps (assoc-ref
                               (first (assoc-ref cargo-metadata "packages"))
                               "dependencies")))
                  ("cksum" . ,sha256sum)
                  ("features" . ,(assoc-ref
                                   (first (assoc-ref cargo-metadata "packages"))
                                   "features"))
                  ("yanked" . #f))
              out)))
        (install-file pkgname (string-append registry "/index/" path))))))

(define %standard-phases
  (modify-phases gnu:%standard-phases
    (delete 'bootstrap)
    (replace 'configure configure)
    (replace 'build build)
    (replace 'check check)
    (replace 'install install)
    (add-after 'build 'package package)
    (add-after 'unpack 'check-for-pregenerated-files check-for-pregenerated-files)
    (add-after 'check-for-pregenerated-files 'unpack-rust-crates unpack-rust-crates)
    (add-after 'patch-generated-file-shebangs 'patch-cargo-checksums patch-cargo-checksums)
    (add-after 'install 'install-sources install-sources)))

(define* (cargo-build #:key inputs (phases %standard-phases)
                      #:allow-other-keys #:rest args)
  "Build the given Cargo package, applying all of PHASES in order."
  (apply gnu:gnu-build #:inputs inputs #:phases phases args))

;;; cargo-build-system.scm ends here

debug log:

solving f1e35a5c65 ...
found f1e35a5c65 in https://yhetil.org/guix/ZY0prn1jTDEe02f2@3900XT/ ||
	https://yhetil.org/guix/ZXsa2Hls1PVAmFEe@3900XT/
found ffb2ec898e in https://git.savannah.gnu.org/cgit/guix.git
preparing index
index prepared:
100644 ffb2ec898e5bcf99c895d0d7fab8d01a89ae92cd	guix/build/cargo-build-system.scm

applying [1/1] https://yhetil.org/guix/ZY0prn1jTDEe02f2@3900XT/
diff --git a/guix/build/cargo-build-system.scm b/guix/build/cargo-build-system.scm
index ffb2ec898e..f1e35a5c65 100644

Checking patch guix/build/cargo-build-system.scm...
Applied patch guix/build/cargo-build-system.scm cleanly.

skipping https://yhetil.org/guix/ZXsa2Hls1PVAmFEe@3900XT/ for f1e35a5c65
index at:
100644 f1e35a5c651b49c00dad77743557b39a32d387f9	guix/build/cargo-build-system.scm

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/guix.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.