;;; 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)
 message to "no
valid substitute".
("substitute, unauthorized narinfo comes first")
("substitute, unsigned narinfo comes first")
("substitute, first narinfo is unsigned and has wrong hash")
("substitute, first narinfo is unsigned and has wrong refs")
("substitute, unsigned narinfo comes first")
("substitute, two invalid narinfos"): New tests.
* doc/guix.texi (Substitutes): Explain the new behavior.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2017-09-11 11:10:21 +0200'>2017-09-11</span></td><td><a href='/guix/commit/tests/substitute.scm?id=218f6eccafa8172221cf7efd5262107233e7a587'>substitute: Make substitute URLs a SRFI-39 parameter.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/substitute.scm (%cache-urls): Rename to...
(%default-substitute-urls): ... this.
(substitute-urls): New variable.
(guix-substitute): Use it instead of %CACHE-URLS.
* tests/substitute.scm: Likewise.
</span></span></td><td>Ludovic Courtès</td></tr>