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build-system/guile: Improve reporting of 'guild compile' failures. 

* guix/build/guile-build-system.scm (invoke-each)[processes]: New
variable.
[wait-for-one-process]: Check PROCESSES and update it.
[fork-and-run-command]: Update PROCESSES.
This commit is contained in:
Ludovic Courtès 2019-06-02 20:57:59 +02:00
parent bdf2dd797e
commit abeb54c00b
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GPG Key ID: 090B11993D9AEBB5
1 changed files with 13 additions and 4 deletions
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17
guix/build/guile-build-system.scm
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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2018, 2019 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -74,11 +74,19 @@ Raise an error if one of the processes exit with non-zero."
(define total
(length commands))
(define processes
(make-hash-table))
(define (wait-for-one-process)
(match (waitpid WAIT_ANY)
((_ . status)
(unless (zero? (status:exit-val status))
(error "process failed" status)))))
((pid . status)
(let ((command (hashv-ref processes pid)))
(hashv-remove! processes command)
(unless (zero? (status:exit-val status))
(format (current-error-port)
"process '~{~a ~}' failed with status ~a~%"
command status)
(exit 1))))))
(define (fork-and-run-command command)
(match (primitive-fork)
@ -90,6 +98,7 @@ Raise an error if one of the processes exit with non-zero."
(lambda ()
(primitive-exit 127))))
(pid
(hashv-set! processes pid command)
#t)))
(let loop ((commands commands)