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build: hg: Handle fetch errors.

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* guix/build/hg.scm (hg-fetch): Add 'guard' to handle errors.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
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zimoun 2020-10-05 18:36:34 +02:00 committed by Mathieu Othacehe
parent 32530a6650
commit a5a3f813c7
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GPG key ID: 8354763531769CA6
1 changed files with 31 additions and 15 deletions
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46
guix/build/hg.scm
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@ -2,6 +2,7 @@
;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2018 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2018 Björn Höfling <bjoern.hoefling@bjoernhoefling.de>
;;; Copyright © 2020 Simon Tournier <zimon.toutoune@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@ -20,6 +21,8 @@
(define-module (guix build hg)
#:use-module (guix build utils)
#:use-module (srfi srfi-34)
#:use-module (ice-9 format)
#:export (hg-fetch))
;;; Commentary:
@ -35,22 +38,35 @@ (define* (hg-fetch url changeset directory
"Fetch CHANGESET from URL into DIRECTORY. CHANGESET must be a valid
Mercurial changeset identifier. Return #t on success, #f otherwise."
(invoke hg-command
"clone" url
"--rev" changeset
;; Disable TLS certificate verification. The hash of
;; the checkout is known in advance anyway.
"--insecure"
directory)
(mkdir-p directory)
;; The contents of '.hg' vary as a function of the current
;; status of the Mercurial repo. Since we want a fixed
;; output, this directory needs to be taken out.
;; Since the '.hg' file is also in sub-modules, we have to
;; search for it in all sub-directories.
(for-each delete-file-recursively
(find-files directory "^\\.hg$" #:directories? #t))
(guard (c ((invoke-error? c)
(format (current-error-port)
"hg-fetch: '~a~{ ~a~}' failed with exit code ~a~%"
(invoke-error-program c)
(invoke-error-arguments c)
(or (invoke-error-exit-status c)
(invoke-error-stop-signal c)
(invoke-error-term-signal c)))
(delete-file-recursively directory)
#f))
(with-directory-excursion directory
(invoke hg-command
"clone" url
"--rev" changeset
;; Disable TLS certificate verification. The hash of
;; the checkout is known in advance anyway.
"--insecure"
directory)
#t)
;; The contents of '.hg' vary as a function of the current
;; status of the Mercurial repo. Since we want a fixed
;; output, this directory needs to be taken out.
;; Since the '.hg' file is also in sub-modules, we have to
;; search for it in all sub-directories.
(for-each delete-file-recursively
(find-files directory "^\\.hg$" #:directories? #t))
#t)))
;;; hg.scm ends here