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;;; random.scm -- Definition of the random build jobs
;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of Cuirass.
;;;
;;; Cuirass 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.
;;;
;;; Cuirass 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 Cuirass.  If not, see <http://www.gnu.org/licenses/>.


(use-modules (guix)
             (srfi srfi-1)
             (srfi srfi-26))

(define (make-job name derivation)
  (lambda ()
    `((#:job-name . ,name)
      (#:derivation . ,(derivation-file-name (force derivation)))
      (#:license . ((name . "GPLv3+")))
      (#:description "dummy job")
      (#:long-description "really dummy job"))))

(define (random-derivation store)
  (let ((nonce (random 1e6)))
    (run-with-store store
      (gexp->derivation "random"
                        #~(let ((seed (logxor (getpid)
                                              (car (gettimeofday)))))
                            (seed->random-state seed)
                            (sleep (pk 'sleeping (random 10)))
                            #$nonce
                            (mkdir #$output))))))

(define (make-random-jobs store arguments)
  (unfold (cut > <> 10)
          (lambda (i)
            (make-job (string-append "foo" (number->string i))
                      (delay (random-derivation store))))
          1+
          0))