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build/cargo-utils: Use all allocated threads to generate checksums. 

* guix/build/cargo-utils.scm (generate-all-checksums): Use
n-par-for-each instead of for-each when regenerating checksums for
source crates.
This commit is contained in:
Efraim Flashner 2020-07-15 10:26:35 +03:00
parent 07c1ccb1eb
commit 7dee475589
Signed by untrusted user: efraim
GPG Key ID: 41AAE7DCCA3D8351
1 changed files with 3 additions and 2 deletions
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guix/build/cargo-utils.scm
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@ -2,7 +2,7 @@
;;; Copyright © 2016 David Craven <david@craven.ch>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2019 Ivan Petkov <ivanppetkov@gmail.com>
;;; Copyright © 2019 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
;;;
;;; This file is part of GNU Guix.
;;;
@ -23,6 +23,7 @@
#:use-module (guix build utils)
#:use-module (ice-9 popen)
#:use-module (ice-9 rdelim)
#:use-module (ice-9 threads)
#:export (generate-checksums
generate-all-checksums))
@ -70,7 +71,7 @@ the same directory."
(display "}" port)))))
(define (generate-all-checksums dir-name)
(for-each
(n-par-for-each (parallel-job-count)
(lambda (filename)
(let* ((dir (dirname filename))
(checksum-file (string-append dir "/.cargo-checksum.json")))