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#!/bin/sh
# -*- scheme -*-
exec ${GUILE:-@GUILE@} --no-auto-compile -e main -s "$0" "$@"
!#
;;;; cuirass - continuous integration system
;;;
;;; Copyright © 2016 Mathieu Lirzin <mthl@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 (cuirass base)
(cuirass job)
(cuirass ui)
(ice-9 getopt-long)
(ice-9 match))
(define* (show-help prog)
(simple-format #t "Usage: ~a [OPTIONS] [CACHEDIR]" prog)
(display "
Run Guix job from a git repository cloned in CACHEDIR.
-f --use-file=FILE Use FILE which defines the job to evaluate
-I, --interval=N Wait N seconds between each evaluation
-V, --version Display version
-h, --help Display this help message")
(newline)
(show-package-information))
(define %options
`((file (single-char #\f) (value #t))
(interval (single-char #\I) (value #t))
(version (single-char #\V) (value #f))
(help (single-char #\h) (value #f))))
(define %user-module
;; Cuirass user module.
(let ((m (make-module)))
(beautify-user-module! m)
m))
(define (fetch-repository cachedir spec)
"Get the latest version of Guix repository. Clone repository in directory
DIR if required."
(or (file-exists? cachedir) (mkdir cachedir))
(with-directory-excursion cachedir
(match spec
(($ <job-spec> name url branch)
(or (file-exists? name) (system* "git" "clone" url name))
(with-directory-excursion name
(and (zero? (system* "git" "fetch"))
(zero? (system* "git" "reset" "--hard"
(string-append "origin/" branch)))))))))
(define (evaluate store cachedir spec)
"Evaluate and build package derivations."
(save-module-excursion
(lambda ()
(set-current-module %user-module)
(let ((dir (string-append cachedir "/" (job-spec-name spec))))
(format #t "prepending ~s to the load path~%" dir)
(set! %load-path (cons dir %load-path)))
(primitive-load (job-spec-file spec))))
(let ((proc (module-ref %user-module (job-spec-proc spec))))
(proc store (job-spec-arguments spec))))
(define (build-packages store jobs)
"Build JOBS which is a list of <job> objects."
(map (match-lambda
(($ <job> name drv)
(format #t "building ~A...~%" drv)
((guix-variable 'derivations 'build-derivations)
store (list drv))
(format #t "~A~%"
((guix-variable 'derivations
'derivation-path->output-path) drv))))
jobs))
;;;
;;; Entry point.
;;;
(define* (main #:optional (args (command-line)))
(let ((opts (getopt-long args %options))
(progname "cuirass"))
(cond
((option-ref opts 'help #f)
(show-help progname)
(exit 0))
((option-ref opts 'version #f)
(show-version progname)
(exit 0))
(else
(let* ((specfile (option-ref opts 'file "tests/hello-subset.scm"))
(specs (primitive-load specfile))
(args (option-ref opts '() #f))
(cachedir (if (null? args)
(getenv "CUIRASS_CACHEDIR")
(car args))))
(while #t
(for-each
(λ (spec)
(fetch-repository cachedir spec)
(let ((store ((guix-variable 'store 'open-connection))))
(dynamic-wind
(const #t)
(lambda ()
(let* ((jobs (evaluate store cachedir spec))
(set-build-options
(guix-variable 'store 'set-build-options)))
(set-build-options store #:use-substitutes? #f)
(build-packages store jobs)))
(lambda ()
((guix-variable 'store 'close-connection) store)))))
specs)
(sleep (string->number (option-ref opts 'interval "60")))))))))
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