mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-26 06:18:07 -05:00
9529f7850e
This allows the installer to distinguish success from failure, and also ensures the shell that runs 'guix system init' exits upon completion. * gnu/installer/utils.scm (run-shell-command)[pause]: New procedure. Add "exec" before COMMAND in the script. Guard 'invoke' call and handle 'invoke-error?'. Add call to 'pause' on completion. * gnu/installer/final.scm (install-system): Remove 'false-if-exception'.
93 lines
3.3 KiB
Scheme
93 lines
3.3 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
|
;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com>
|
|
;;; Copyright © 2019 Ludovic Courtès <ludo@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 (gnu installer utils)
|
|
#:use-module (guix utils)
|
|
#:use-module (guix build utils)
|
|
#:use-module (guix i18n)
|
|
#:use-module (srfi srfi-34)
|
|
#:use-module (ice-9 rdelim)
|
|
#:use-module (ice-9 regex)
|
|
#:use-module (ice-9 textual-ports)
|
|
#:export (read-lines
|
|
read-all
|
|
nearest-exact-integer
|
|
read-percentage
|
|
run-shell-command))
|
|
|
|
(define* (read-lines #:optional (port (current-input-port)))
|
|
"Read lines from PORT and return them as a list."
|
|
(let loop ((line (read-line port))
|
|
(lines '()))
|
|
(if (eof-object? line)
|
|
(reverse lines)
|
|
(loop (read-line port)
|
|
(cons line lines)))))
|
|
|
|
(define (read-all file)
|
|
"Return the content of the given FILE as a string."
|
|
(call-with-input-file file
|
|
get-string-all))
|
|
|
|
(define (nearest-exact-integer x)
|
|
"Given a real number X, return the nearest exact integer, with ties going to
|
|
the nearest exact even integer."
|
|
(inexact->exact (round x)))
|
|
|
|
(define (read-percentage percentage)
|
|
"Read PERCENTAGE string and return the corresponding percentage as a
|
|
number. If no percentage is found, return #f"
|
|
(let ((result (string-match "^([0-9]+)%$" percentage)))
|
|
(and result
|
|
(string->number (match:substring result 1)))))
|
|
|
|
(define* (run-shell-command command #:key locale)
|
|
"Run COMMAND, a string, with Bash, and in the given LOCALE. Return true if
|
|
COMMAND exited successfully, #f otherwise."
|
|
(define (pause)
|
|
(format #t (G_ "Press Enter to continue.~%"))
|
|
(read-line (current-input-port)))
|
|
|
|
(call-with-temporary-output-file
|
|
(lambda (file port)
|
|
(when locale
|
|
(let ((supported? (false-if-exception
|
|
(setlocale LC_ALL locale))))
|
|
;; If LOCALE is not supported, then set LANGUAGE, which might at
|
|
;; least give us translated messages.
|
|
(if supported?
|
|
(format port "export LC_ALL=\"~a\"~%" locale)
|
|
(format port "export LANGUAGE=\"~a\"~%"
|
|
(string-take locale
|
|
(string-index locale #\_))))))
|
|
|
|
(format port "exec ~a~%" command)
|
|
(close port)
|
|
|
|
(guard (c ((invoke-error? c)
|
|
(newline)
|
|
(format (current-error-port)
|
|
(G_ "Command failed with exit code ~a.~%")
|
|
(invoke-error-exit-status c))
|
|
(pause)
|
|
#f))
|
|
(invoke "bash" "--init-file" file)
|
|
(newline)
|
|
(pause)
|
|
#t))))
|