;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 David Thompson <davet@gnu.org>
;;; Copyright © 2016, 2017, 2019, 2023 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 (test-containers)
  #:use-module (guix utils)
  #:use-module (guix build syscalls)
  #:use-module (gnu build linux-container)
  #:use-module ((gnu system linux-container)
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<div class='path'>path: <a href='/guix/commit/?id=5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3'>root</a>/<a href='/guix/commit/gnu?id=5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3'>gnu</a>/<a href='/guix/commit/gnu/installer?id=5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3'>installer</a>/<a href='/guix/commit/gnu/installer/parted.scm?id=5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3'>parted.scm</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Guillaume Le Vaillant &lt;glv@posteo.net&gt;</td><td class='right'>2024-05-30 11:29:35 +0200</td></tr>
<tr><th>committer</th><td>Guillaume Le Vaillant &lt;glv@posteo.net&gt;</td><td class='right'>2024-05-30 11:29:35 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/guix/commit/gnu/installer/parted.scm?id=5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3'>5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3</a> (<a href='/guix/patch/gnu/installer/parted.scm?id=5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/guix/tree/?id=5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3'>536c4b7666aed286dc3cf58868874eea6e0c2f8e</a> /<a href='/guix/tree/gnu/installer/parted.scm?id=5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3'>gnu/installer/parted.scm</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/guix/commit/gnu/installer/parted.scm?id=970d2c4a11fb4d844b14b2942e886906167fea4e'>970d2c4a11fb4d844b14b2942e886906167fea4e</a> (<a href='/guix/diff/gnu/installer/parted.scm?id=5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3&amp;id2=970d2c4a11fb4d844b14b2942e886906167fea4e'>diff</a>)</td></tr><tr><th>download</th><td colspan='2' class='oid'><a href='/guix/snapshot/guix-5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3.tar.gz'>guix-5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3.tar.gz</a><br/><a href='/guix/snapshot/guix-5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3.zip'>guix-5b2ee0f3d2575e7c3983c241bcd96e696e1f25f3.zip</a><br/></td></tr></table>
<div class='commit-subject'>gnu: electron-cash: Update to 4.4.1.</div><div class='commit-msg'>* gnu/packages/finance.scm (electron-cash): Update to 4.4.1.

Change-Id: I79e4bd3b039074440d897a72ca145c2b2adf0c48
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amespaces
                               (namespaces (getpid)))))))))
          (close end-in)
          ;; Stop the container.
          (write 'done end-out)
          (close end-out)
          (waitpid pid)
          (zero? result)))))))

(skip-if-unsupported)
(test-equal "container-excursion, same namespaces"
  42
  ;; The parent and child are in the same namespaces.  'container-excursion'
  ;; should notice that and avoid calling 'setns' since that would fail.
  (status:exit-val
   (container-excursion (getpid)
     (lambda ()
       (primitive-exit 42)))))

(skip-if-unsupported)
(test-assert "container-excursion*"
  (call-with-temporary-directory
   (lambda (root)
     (define (namespaces pid)
       (let ((pid (number->string pid)))
         (map (lambda (ns)
                (readlink (string-append "/proc/" pid "/ns/" ns)))
              '("user" "ipc" "uts" "net" "pid" "mnt"))))

     (let* ((pid    (run-container root '()
                                   %namespaces 1
                                   (lambda ()
                                     (sleep 100))))
            (expected (namespaces pid))
            (result (container-excursion* pid
                      (lambda ()
                        (namespaces 1)))))
       (kill pid SIGKILL)
       (equal? result expected)))))

(skip-if-unsupported)
(test-equal "container-excursion*, same namespaces"
  42
  (container-excursion* (getpid)
    (lambda ()
      (* 6 7))))

(skip-if-unsupported)
(test-equal "container-excursion*, /proc"
  '("1" "2")
  (call-with-temporary-directory
   (lambda (root)
     (let* ((pid    (run-container root '()
                                   %namespaces 1
                                   (lambda ()
                                     (sleep 100))))
            (result (container-excursion* pid
                      (lambda ()
                        ;; We expect to see exactly two processes in this
                        ;; namespace.
                        (scandir "/proc"
                                 (lambda (file)
                                   (char-set-contains?
                                    char-set:digit
                                    (string-ref file 0))))))))
       (kill pid SIGKILL)
       result))))

(skip-if-unsupported)
(test-equal "eval/container, exit status"
  42
  (let* ((store  (open-connection-for-tests))
         (status (run-with-store store
                   (eval/container #~(exit 42)))))
    (close-connection store)
    (status:exit-val status)))

(skip-if-unsupported)
(test-assert "eval/container, writable user mapping"
  (call-with-temporary-directory
   (lambda (directory)
     (define store
       (open-connection-for-tests))
     (define result
       (string-append directory "/r"))
     (define requisites*
       (store-lift requisites))

     (call-with-output-file result (const #t))
     (run-with-store store
       (mlet %store-monad ((status (eval/container
                                    #~(begin
                                        (use-modules (ice-9 ftw))
                                        (call-with-output-file "/result"
                                          (lambda (port)
                                            (write (scandir #$(%store-prefix))
                                                   port))))
                                    #:mappings
                                    (list (file-system-mapping
                                           (source result)
                                           (target "/result")
                                           (writable? #t)))))
                           (reqs   (requisites*
                                    (list (derivation->output-path
                                           (%guile-for-build))))))
         (close-connection store)
         (return (and (zero? (pk 'status status))
                      (lset= string=? (cons* "." ".." (map basename reqs))
                             (pk (call-with-input-file result read))))))))))

(skip-if-unsupported)
(test-assert "eval/container, non-empty load path"
  (call-with-temporary-directory
   (lambda (directory)
     (define store
       (open-connection-for-tests))
     (define result
       (string-append directory "/r"))
     (define requisites*
       (store-lift requisites))

     (mkdir result)
     (run-with-store store
       (mlet %store-monad ((status (eval/container
                                    (with-imported-modules '((guix build utils))
                                      #~(begin
                                          (use-modules (guix build utils))
                                          (mkdir-p "/result/a/b/c")))
                                    #:mappings
                                    (list (file-system-mapping
                                           (source result)
                                           (target "/result")
                                           (writable? #t))))))
         (close-connection store)
         (return (and (zero? status)
                      (file-is-directory?
                       (string-append result "/a/b/c")))))))))

(test-end)