;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016, 2018-2020, 2022 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/>.

(use-modules (gnu tests)
             (gnu packages package-management)
             (guix monads)
             (guix store)
             ((guix git-download) #:select (git-predicate))
             ((guix utils) #:select (current-source-directory))
             (git)
             (ice-9 match))

(define (source-commit directory)
  "Return the commit of the head of DIRECTORY or #f if it could not be
determined."
  (let ((repository #f))
    (catch 'git-error
      (lambda ()
        (set! repository (repository-open directory))
        (let* ((head   (repository-head repository))
               (target (reference-target head))
               (commit (oid->string target)))
          (repository-close! repository)
          commit))
      (lambda _
        (when repository
          (repository-close! repository))
        #f))))

(define (tests-for-current-guix source commit)
  "Return a list of tests for perform, using Guix built from SOURCE, a channel
instance."
  ;; Honor the 'TESTS' environment variable so that one can select a subset
  ;; of tests to run in the usual way:
  ;;
  ;;   make check-system TESTS=installed-os
  (let ((guix (channel-source->package source #:commit commit)))
    (map (lambda (test)
           (system-test
            (inherit test)
            (value (mparameterize %store-monad ((current-guix-package guix))
                     (system-test-value test)))))
         (match (getenv "TESTS")
           (#f
            (all-system-tests))
           ((= string-tokenize (tests ...))
            (filter (lambda (test)
                      (member (system-test-name test) tests))
                    (all-system-tests)))))))

(define (system-test->manifest-entry test)
  "Return a manifest entry for TEST, a system test."
  (manifest-entry
    (name (string-append "test." (system-test-name test)))
    (version "0")
    (item test)))

(define (system-test-manifest)
  "Return a manifest containing all the system tests, or all those selected by
the 'TESTS' environment variable."
  (define source
    (string-append (current-source-directory) "/.."))

  (define commit
    ;; Fetch the current commit ID so we can potentially build the same
    ;; derivation as ci.guix.gnu.org.
    (source-commit source))

  ;; Intern SOURCE so that 'build-from-source' in (guix channels) sees
  ;; "fresh" file names and thus doesn't find itself loading .go files
  ;; from ~/.cache/guile when it loads 'build-aux/build-self.scm'.
  (let* ((source (local-file source
                             (if commit
                                 (string-append "guix-"
                                                (string-take commit 7))
                                 "guix-source")
                             #:recursive? #t
                             #:select?
                             (or (git-predicate source)
                                 (const #t))))
         (tests  (tests-for-current-guix source commit)))
    (format (current-error-port) "Selected ~a system tests...~%"
            (length tests))

    (manifest (map system-test->manifest-entry tests))))

;; Return the manifest.
(system-test-manifest)
ted
file above,
(find-image): adapt to avoid loop dependency.
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-06-13 15:20:52 +0200'>2020-06-13</span></td><td><a href='/guix/commit/gnu/image.scm?id=f292d4719dead6a615187f325fbc0bb0e99d10b4'>image: Add 'target' support.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/image.scm (&lt;image&gt;)[target]: New field,
(image-target): new public method.
* gnu/system/image.scm (hurd-disk-image): Set "i586-pc-gnu" as image 'target'
field,
(maybe-with-target): new procedure,
(system-image): honor image 'target' field using the above procedure.
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-05-26 17:16:42 +0200'>2020-05-26</span></td><td><a href='/guix/commit/gnu/image.scm?id=bd3716f6fee127562935d86ff7f641197366769c'>image: Add partition file-system options support.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/image.scm (&lt;partition&gt;)[file-system-options]: New field,
(partition-file-system-options): new exported procedure.
* gnu/system/image.scm (partition-&gt;gexp): Adapt accordingly.
* gnu/build/image.scm (sexp-&gt;partition): Also adapt accordingly,
(make-ext-image): and pass file-system options to mke2fs.
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-05-26 13:06:37 +0200'>2020-05-26</span></td><td><a href='/guix/commit/gnu/image.scm?id=1dd7b87f101ce99b37be5c769904c1aa2f6a0615'>image: Set offset default to zero.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/image.scm (&lt;partition&gt;)[offset]: Set to zero by default.
* gnu/system/image.scm (system-disk-image): Adapt accordingly.
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-05-26 09:57:06 +0200'>2020-05-26</span></td><td><a href='/guix/commit/gnu/image.scm?id=1b4fa7851b39f087a6433e8b5e22c479ca1da289'>image: Add partition offset support.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/image.scm (partition-offset): New procedure,
(&lt;partition&gt;)[offset]: new field.
* gnu/system/image.scm (system-disk-image): Apply the partition offset.
</span></span></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2020-05-05 16:13:53 +0200'>2020-05-05</span></td><td><a href='/guix/commit/gnu/image.scm?id=f19cf27c2b9ff92e2c0fd931ef7fde39c376adaa'>image: Add a new API.</a><span class='msg-avail'>...<span class='msg-tooltip'>Raw disk-images and ISO9660 images are created in a Qemu virtual machine. This
is quite fragile, very slow, and almost unusable without KVM.

For all these reasons, add support for host image generation. This implies the
use new image generation mechanisms.

- Raw disk images: images of partitions are created using tools such as mke2fs
  and mkdosfs depending on the partition file-system type. The partition
  images are then assembled into a final image using genimage.

- ISO9660 images: the ISO root directory is populated within the store. GNU
  xorriso is then called on that directory, in the exact same way as this is
  done in (gnu build vm) module.

Those mechanisms are built upon the new (gnu image) module.

* gnu/image.scm: New file.
* gnu/system/image.scm: New file.
* gnu/build/image: New file.
* gnu/local.mk: Add them.
* gnu/system/vm.scm (system-disk-image): Rename to system-disk-image-in-vm.
* gnu/ci.scm (qemu-jobs): Adapt to new API.
* gnu/tests/install.scm (run-install): Ditto.
* guix/scripts/system.scm (system-derivation-for-action): Ditto.
</span></span></td><td>Mathieu Othacehe</td></tr>