-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2017 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 build bootloader)
- #:use-module (srfi srfi-34)
- #:use-module (srfi srfi-35)
- #:use-module (ice-9 binary-ports)
- #:use-module (ice-9 popen)
- #:use-module (ice-9 match)
- #:use-module (ice-9 rdelim)
- #:use-module (ice-9 format)
- #:export (write-file-on-device
- invoke/quiet))
-
-\f
-;;;
-;;; Writing utils.
-;;;
-
-(define (write-file-on-device file size device offset)
- "Write SIZE bytes from FILE to DEVICE starting at OFFSET."
- (call-with-input-file file
- (lambda (input)
- (let ((bv (get-bytevector-n input size)))
- (call-with-output-file device
- (lambda (output)
- (seek output offset SEEK_SET)
- (put-bytevector output bv))
- #:binary #t)))))
-
-(define-syntax-rule (G_ str) str) ;for xgettext
-
-(define (open-pipe-with-stderr program . args)
- "Run PROGRAM with ARGS in an input pipe, but, unlike 'open-pipe*', redirect
-both its standard output and standard error to the pipe. Return two value:
-the pipe to read PROGRAM's data from, and the PID of the child process running
-PROGRAM."
- ;; 'open-pipe*' doesn't attempt to capture stderr in any way, which is why
- ;; we need to roll our own.
- (match (pipe)
- ((input . output)
- (match (primitive-fork)
- (0
- (dynamic-wind
- (const #t)
- (lambda ()
- (close-port input)
- (dup2 (fileno output) 1)
- (dup2 (fileno output) 2)
- (apply execlp program program args))
- (lambda ()
- (primitive-exit 127))))
- (pid
- (close-port output)
- (values input pid))))))
-
-;; TODO: Move to (guix build utils) on the next rebuild cycle.
-(define (invoke/quiet program . args)
- "Invoke PROGRAM with ARGS and capture PROGRAM's standard output and standard
-error. If PROGRAM succeeds, print nothing and return the unspecified value;
-otherwise, raise a '&message' error condition that includes the status code
-and the output of PROGRAM."
- (define-values (pipe pid)
- (apply open-pipe-with-stderr program args))
-
- (let loop ((lines '()))
- (match (read-line pipe)
- ((? eof-object?)
- (close-port pipe)
- (match (waitpid pid)
- ((_ . status)
- (unless (zero? status)
- (raise (condition
- (&message
- (message (format #f (G_ "'~a~{ ~a~}' exited with status ~a; \
-output follows:~%~%~{ ~a~%~}")
- program args
- (or (status:exit-val status)
- status)
- (reverse lines))))))))))
- (line
- (loop (cons line lines))))))
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2017 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 build bootloader)
+ #:use-module (ice-9 binary-ports)
+ #:export (write-file-on-device))
+
+\f
+;;;
+;;; Writing utils.
+;;;
+
+(define (write-file-on-device file size device offset)
+ "Write SIZE bytes from FILE to DEVICE starting at OFFSET."
+ (call-with-input-file file
+ (lambda (input)
+ (let ((bv (get-bytevector-n input size)))
+ (call-with-output-file device
+ (lambda (output)
+ (seek output offset SEEK_SET)
+ (put-bytevector output bv))
+ #:binary #t)))))
HCoop / jackhill / guix / guix.git / blobdiff