guix-cuirass/bin/cuirass.in

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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)
(ice-9 match))
(define %guix-repository
(make-parameter "git://git.savannah.gnu.org/guix.git"))
(define* (pull-changes dir)
"Get the latest version of Guix repository. Clone repository in directory
DIR if required."
(or (file-exists? dir) (mkdir dir))
(with-directory-excursion dir
(let ((guixdir "guix"))
(or (file-exists? guixdir)
(system* "git" "clone" (%guix-repository) guixdir))
(with-directory-excursion guixdir
(and (zero? (system* "git" "fetch")) ;no 'git pull' to avoid merges
(zero? (system* "git" "reset" "--hard" "origin/master")))))))
(define (compile dir)
"Compile files in Guix cloned repository in directory DIR."
(with-directory-excursion (string-append dir "/guix")
(or (file-exists? "configure") (system* "./bootstrap"))
(or (file-exists? "Makefile")
(system* "./configure" "--localstatedir=/var"))
(zero? (system* "make" "-j" (number->string (current-processor-count))))))
(define %user-module
;; Cuirass user module.
(let ((m (make-module)))
(beautify-user-module! m)
m))
(define (build-packages store jobs)
"Build JOBS which is a list of job. ((job-symbol pair ...) ...)"
(map (lambda (thing)
(let ((name (symbol->string (car thing)))
(drv (cdadr thing)))
(format #t "building ~A => ~A~%" name drv)
((guix-variable 'derivations 'build-derivations) store (list drv))))
jobs))
(define (evaluate dir)
"Evaluate and build package derivations in directory DIR."
(save-module-excursion
(lambda ()
(set-current-module %user-module)
(primitive-load (string-append dir "/guix/build-aux/hydra/gnu-system.scm"))))
(let ((store ((guix-variable 'store 'open-connection))))
(dynamic-wind
(const #t)
(lambda ()
((guix-variable 'store 'set-build-options) store
#:use-substitutes? #f)
(build-packages
store
(match ((module-ref %user-module 'hydra-jobs) store '())
(((names . thunks) ...)
(map (lambda (job thunk)
(format (current-error-port) "evaluating '~a'... " job)
(force-output (current-error-port))
(cons job (call-with-time-display thunk)))
names thunks)))))
(lambda ()
((guix-variable 'store 'close-connection) store)))))
;;;
;;; Entry point.
;;;
(define* (main #:optional (args (command-line)))
(match args
((program interval)
(let ((cachedir (getenv "CUIRASS_CACHEDIR")))
(while #t
(pull-changes cachedir)
(compile cachedir)
(evaluate cachedir)
(sleep (string->number interval)))))
(_ (main (list (car args) "60")))))