aboutsummaryrefslogtreecommitdiff
path: root/tests/pki.scm
diff options
context:
space:
mode:
authorMathieu Othacehe <othacehe@gnu.org>2020-08-24 11:49:27 +0200
committerMathieu Othacehe <othacehe@gnu.org>2020-08-24 11:54:30 +0200
commit2f2dbde921e75dfb04ddcc183ca068ba05dc3d91 (patch)
tree7b97472f869aca6c19bf9c3525af86e8b4e416e5 /tests/pki.scm
parent7bcc8004b192f2316beee837521ec251b3d13aca (diff)
downloadguix-2f2dbde921e75dfb04ddcc183ca068ba05dc3d91.tar.gz
guix-2f2dbde921e75dfb04ddcc183ca068ba05dc3d91.zip
gnu: Remove duplicated linux-libre-arm64-generic-5.8.
This fixes a test failure in "fold-available-packages with/without cache". * gnu/packages/linux.scm (linux-libre-arm64-generic-5.8): Remove it as it duplicates linux-libre-arm64-generic.
Diffstat (limited to 'tests/pki.scm')
0 files changed, 0 insertions, 0 deletions
generated by cgit
108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2014, 2015, 2018, 2020 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 linux-initrd)
  #:use-module ((guix cpio) #:prefix cpio:)
  #:use-module (guix build utils)
  #:use-module (guix build store-copy)
  #:use-module (system base compile)
  #:use-module (rnrs bytevectors)
  #:use-module ((system foreign) #:select (sizeof))
  #:use-module (ice-9 ftw)
  #:export (write-cpio-archive
            build-initrd))

;;; Commentary:
;;;
;;; Tools to create Linux initial RAM disks ("initrds").  Initrds are
;;; essentially gzipped cpio archives, with a '/init' executable that the
;;; kernel runs at boot time.
;;;
;;; Code:

(define* (write-cpio-archive output directory
                             #:key
                             (compress? #t)
                             (gzip "gzip"))
  "Write a cpio archive containing DIRECTORY to file OUTPUT, with reset
timestamps in the archive.  When COMPRESS? is true, compress it using GZIP.
On success, return OUTPUT."

  ;; Note: as per `ramfs-rootfs-initramfs.txt', always add directory entries
  ;; before the files that are inside of it: "The Linux kernel cpio
  ;; extractor won't create files in a directory that doesn't exist, so the
  ;; directory entries must go before the files that go in those
  ;; directories."

  (define files
    ;; Use 'sort' so that (1) the order of files is deterministic, and (2)
    ;; directories appear before the files they contain.
    (sort (file-system-fold (const #t)                 ;enter?
                            (lambda (file stat result) ;leaf
                              (cons file result))
                            (lambda (dir stat result)  ;down
                              (if (string=? dir directory)
                                  result
                                  (cons dir result)))
                            (lambda (file stat result)
                              result)
                            (const #f)                 ;skip
                            (const #f)                 ;error
                            '()
                            directory)
          string<?))

  (call-with-output-file output
    (lambda (port)
      (cpio:write-cpio-archive files port
                               #:file->header cpio:file->cpio-header*)))

  (if compress?
      ;; Gzip insists on adding a '.gz' suffix and does nothing if the input
      ;; file already has that suffix.  Shuffle files around to placate it.
      (let* ((gz-suffix? (string-suffix? ".gz" output))
             (sans-gz    (if gz-suffix?
                             (string-drop-right output 3)
                             output)))
        (when gz-suffix?
          (rename-file output sans-gz))
        ;; Use '--no-name' so that gzip records neither a file name nor a time
        ;; stamp in its output.
        (and (zero? (system* gzip "--best" "--no-name" sans-gz))
             (begin
               (unless gz-suffix?
                 (rename-file (string-append output ".gz") output))
               output)))
      output))

(define (cache-compiled-file-name file)
  "Return the file name of the in-cache .go file for FILE, relative to the
current directory.

This is similar to what 'compiled-file-name' in (system base compile) does."
  (let loop ((file file))
    (let ((target (false-if-exception (readlink file))))
     (if target
         (loop target)
         (format #f ".cache/guile/ccache/~a-~a-~a-~a/~a"
                 (effective-version)
                 (if (eq? (native-endianness) (endianness little))
                     "LE"
                     "BE")
                 (sizeof '*)
                 (effective-version)
                 file)))))

(define (compile-to-cache file)
  "Compile FILE to the cache."
  (let ((compiled-file (cache-compiled-file-name file)))
    (mkdir-p (dirname compiled-file))
    (compile-file file
                  #:opts %auto-compilation-options
                  #:output-file compiled-file)))

(define* (build-initrd output
                       #:key
                       guile init
                       (references-graphs '())
                       (gzip "gzip"))
  "Write an initial RAM disk (initrd) to OUTPUT.  The initrd starts the script
at INIT, running GUILE.  It contains all the items referred to by
REFERENCES-GRAPHS."
  (mkdir "contents")

  ;; Copy the closures of all the items referenced in REFERENCES-GRAPHS.
  (populate-store references-graphs "contents"
                  #:deduplicate? #f)

  (with-directory-excursion "contents"
    ;; Make '/init'.
    (symlink init "init")

    ;; Compile it.
    (compile-to-cache "init")

    ;; Allow Guile to find out where it is (XXX).  See
    ;; 'guile-relocatable.patch'.
    (mkdir-p "proc/self")
    (symlink (string-append guile "/bin/guile") "proc/self/exe")
    (readlink "proc/self/exe")

    (write-cpio-archive output "." #:gzip gzip))

  ;; Make sure directories are writable so we can delete files.
  (for-each make-file-writable
            (find-files "contents"
                        (lambda (file stat)
                          (eq? 'directory (stat:type stat)))
                        #:directories? #t))
  (delete-file-recursively "contents"))

;;; linux-initrd.scm ends here
generated by cgit