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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2017 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/>.
+
+;;;
+;;; This file defines a continuous integration job to build the same modular
+;;; Guix as 'guix pull', which is defined in (guix self).
+;;;
+
+;; Attempt to use our very own Guix modules.
+(eval-when (compile load eval)
+
+ ;; Ignore any available .go, and force recompilation. This is because our
+ ;; checkout in the store has mtime set to the epoch, and thus .go files look
+ ;; newer, even though they may not correspond.
+ (set! %fresh-auto-compile #t)
+
+ (and=> (assoc-ref (current-source-location) 'filename)
+ (lambda (file)
+ (let ((dir (canonicalize-path
+ (string-append (dirname file) "/../.."))))
+ (format (current-error-port) "prepending ~s to the load path~%"
+ dir)
+ (set! %load-path (cons dir %load-path))))))
+
+
+(use-modules (guix store)
+ (guix config)
+ (guix utils)
+ (guix grafts)
+ ((guix packages) #:select (%hydra-supported-systems))
+ (guix derivations)
+ (guix monads)
+ (guix gexp)
+ (guix self)
+ ((guix licenses) #:prefix license:)
+ (srfi srfi-1)
+ (srfi srfi-26)
+ (ice-9 match))
+
+;; XXX: Debugging hack: since `hydra-eval-guile-jobs' redirects the output
+;; port to the bit bucket, let us write to the error port instead.
+(setvbuf (current-error-port) _IOLBF)
+(set-current-output-port (current-error-port))
+
+(define* (build-job store source version system)
+ "Return a Hydra job a list building the modular Guix derivation from SOURCE
+for SYSTEM. Use VERSION as the version identifier."
+ (lambda ()
+ `((derivation . ,(derivation-file-name
+ (parameterize ((%graft? #f))
+ (run-with-store store
+ (lower-object (compiled-guix source
+ #:version version))))))
+ (description . "Modular Guix")
+ (long-description
+ . "This is the modular Guix package as produced by 'guix pull'.")
+ (license . ,license:gpl3+)
+ (home-page . ,%guix-home-page-url)
+ (maintainers . (,%guix-bug-report-address)))))
+
+(define (hydra-jobs store arguments)
+ "Return Hydra jobs."
+ (define systems
+ (match (filter-map (match-lambda
+ (('system . value) value)
+ (_ #f))
+ arguments)
+ ((lst ..1)
+ lst)
+ (_
+ (list (%current-system)))))
+
+ (define guix-checkout
+ (assq-ref arguments 'guix))
+
+ (define version
+ (or (assq-ref guix-checkout 'revision)
+ "0.unknown"))
+
+ (let ((file (assq-ref guix-checkout 'file-name)))
+ (format (current-error-port) "using checkout ~s (~s)~%"
+ guix-checkout file)
+
+ (map (lambda (system)
+ (let ((name (string->symbol
+ (string-append "guix." system))))
+ `(,name
+ . ,(build-job store file version system))))
+ %hydra-supported-systems)))