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#!/bin/sh
# -*- scheme -*-
exec ${GUILE:-@GUILE@} --no-auto-compile -e main -s "$0" "$@"
!#
;;; cuirass -- continuous integration tool
;;; 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 config)
(cuirass database)
(cuirass ui)
(cuirass utils)
(guix derivations)
(guix store)
(ice-9 getopt-long)
(ice-9 popen)
(ice-9 rdelim))
(define (show-help)
(format #t "Usage: ~a [OPTIONS]~%" (%program-name))
(display "Run build jobs from internal database.
--one-shot Evaluate and build jobs only once
--cache-directory=DIR Use DIR for storing repository data
-S --specifications=SPECFILE
Add specifications from SPECFILE to database.
-D --database=DB Use DB to store build results.
-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
'((one-shot (value #f))
(cache-directory (value #t))
(specifications (single-char #\S) (value #t))
(database (single-char #\D) (value #t))
(interval (single-char #\I) (value #t))
(version (single-char #\V) (value #f))
(help (single-char #\h) (value #f))))
(define (fetch-repository spec)
"Get the latest version of repository specified in SPEC. Clone repository
if required."
(define (current-commit)
(let* ((pipe (open-input-pipe "git log -n1"))
(log (read-string pipe))
(commit (cadr (string-split log char-set:whitespace))))
(close-pipe pipe)
commit))
(let ((cachedir (%package-cachedir)))
(or (file-exists? cachedir) (mkdir cachedir))
(with-directory-excursion cachedir
(let ((name (assq-ref spec #:name))
(url (assq-ref spec #:url))
(branch (assq-ref spec #:branch))
(commit (assq-ref spec #:commit))
(tag (assq-ref spec #:tag)))
(or (file-exists? name) (system* "git" "clone" url name))
(with-directory-excursion name
(and (zero? (system* "git" "fetch"))
(zero? (system* "git" "reset" "--hard"
(or tag
commit
(string-append "origin/" branch))))
(current-commit)))))))
(define (compile dir)
;; Required for fetching Guix bootstrap tarballs.
"Compile files in repository in directory DIR."
(with-directory-excursion dir
(or (file-exists? "configure") (system* "./bootstrap"))
(or (file-exists? "Makefile")
(system* "./configure" "--localstatedir=/var"))
(zero? (system* "make" "-j" (number->string (current-processor-count))))))
(define (evaluate store db spec)
"Evaluate and build package derivations. Return a list of jobs."
(let* ((port (open-pipe* OPEN_READ
"evaluate"
(string-append (%package-cachedir) "/"
(assq-ref spec #:name) "/"
(assq-ref spec #:load-path))
(%package-cachedir)
(object->string spec)
(%package-database)))
(jobs (read port)))
(close-pipe port)
jobs))
(define (build-packages store db jobs)
"Build JOBS and return a list of Build results."
(map (λ (job)
(let ((log-port (%make-void-port "w0"))
(name (assq-ref job #:job-name))
(drv (assq-ref job #:derivation)))
(simple-format #t "building ~A...\n" drv)
(parameterize ((current-build-output-port log-port))
(build-derivations store (list drv))
(let* ((output (derivation-path->output-path drv))
(log (log-file store output))
(build `((#:derivation . ,drv)
(#:log . ,log)
(#:output . ,output)))
(id (db-add-build db build)))
(close-port log-port)
(simple-format #t "~A\n" output)
(acons #:id id build)))))
jobs))
(define (process-specs db jobspecs)
"Evaluate and build JOBSPECS and store results in DB."
(for-each (λ (spec)
(let ((commit (fetch-repository spec))
(stamp (db-get-stamp db spec)))
(unless (string=? commit stamp)
(compile (string-append (%package-cachedir) "/"
(assq-ref spec #:name)))
(with-store store
(let ((jobs (evaluate store db spec)))
(set-build-options store #:use-substitutes? #f)
(build-packages store db jobs))))
(db-add-stamp db spec commit)))
jobspecs))
;;;
;;; Entry point.
;;;
(define* (main #:optional (args (command-line)))
(let* ((opts (getopt-long args %options)))
(parameterize
((%program-name (car args))
(%package-database (option-ref opts 'database (%package-database)))
(%package-cachedir
(option-ref opts 'cache-directory (%package-cachedir))))
(cond
((option-ref opts 'help #f)
(show-help)
(exit 0))
((option-ref opts 'version #f)
(show-version)
(exit 0))
(else
(let ((one-shot? (option-ref opts 'one-shot #f))
(interval (string->number (option-ref opts 'interval "10")))
(specfile (option-ref opts 'specifications #f)))
(with-database db
(and specfile
(let ((new-specs (save-module-excursion
(λ ()
(set-current-module (make-user-module))
(primitive-load specfile)))))
(for-each (λ (spec) (db-add-specification db spec))
new-specs)))
(let ((specs (db-get-specifications db)))
(if one-shot?
(process-specs db specs)
(while #t
(process-specs db specs)
(sleep interval)))))))))))
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