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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Efraim Flashner <efraim@flashner.co.il>
+;;;
+;;; 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/>.
+
+(define-module (guix build-system rakudo)
+ #:use-module (guix store)
+ #:use-module (guix utils)
+ #:use-module (guix derivations)
+ #:use-module (guix search-paths)
+ #:use-module (guix build-system)
+ #:use-module (guix build-system gnu)
+ #:use-module (guix packages)
+ #:use-module (ice-9 match)
+ #:export (%rakudo-build-system-modules
+ rakudo-build
+ rakudo-build-system))
+
+;; Commentary:
+;;
+;; Standard build and install procedure for packages using the Rakudo
+;; build system to be installed as system libraries. This is
+;; implemented as an extension of `gnu-build-system'.
+;;
+;; Code:
+
+(define %rakudo-build-system-modules
+ ;; Build-side modules imported by default.
+ `((guix build rakudo-build-system)
+ ,@%gnu-build-system-modules))
+
+(define (default-rakudo)
+ "Return the default Rakudo package."
+
+ ;; Do not use `@' to avoid introducing circular dependencies.
+ (let ((module (resolve-interface '(gnu packages perl6))))
+ (module-ref module 'rakudo)))
+
+(define (default-prove6)
+ "Return the default perl6-tap-harness package for tests."
+ (let ((module (resolve-interface '(gnu packages perl6))))
+ (module-ref module 'perl6-tap-harness)))
+
+(define (default-zef)
+ "Return the default perl6-zef package."
+ (let ((module (resolve-interface '(gnu packages perl6))))
+ (module-ref module 'perl6-zef)))
+
+(define* (lower name
+ #:key source inputs native-inputs outputs
+ system target
+ (rakudo (default-rakudo))
+ (prove6 (default-prove6))
+ (zef (default-zef))
+ (with-prove6? #t)
+ (with-zef? #t)
+ #:allow-other-keys
+ #:rest arguments)
+ "Return a bag for NAME."
+ (define private-keywords
+ '(#:source #:target #:rakudo #:prove6 #:zef #:inputs #:native-inputs))
+
+ (and (not target) ;XXX: no cross-compilation
+ (bag
+ (name name)
+ (system system)
+ (host-inputs `(,@(if source
+ `(("source" ,source))
+ '())
+ ,@inputs
+
+ ;; Keep the standard inputs of 'gnu-build-system'.
+ ,@(standard-packages)))
+ (build-inputs `(("rakudo" ,rakudo)
+ ,@(if with-prove6?
+ `(("perl6-tap-harness" ,prove6)
+ ,@(if with-zef?
+ `(("perl6-zef" ,zef))
+ '()))
+ '())
+ ,@native-inputs))
+ (outputs outputs)
+ (build rakudo-build)
+ (arguments (strip-keyword-arguments private-keywords arguments)))))
+
+(define* (rakudo-build store name inputs
+ #:key
+ (search-paths '())
+ (tests? #t)
+ (phases '(@ (guix build rakudo-build-system)
+ %standard-phases))
+ (outputs '("out"))
+ (system (%current-system))
+ (guile #f)
+ (with-zef? #t)
+ (with-prove6? #t)
+ (imported-modules %rakudo-build-system-modules)
+ (modules '((guix build rakudo-build-system)
+ (guix build utils))))
+ "Build SOURCE using PERL6, and with INPUTS."
+ (define builder
+ `(begin
+ (use-modules ,@modules)
+ (rakudo-build #:name ,name
+ #:source ,(match (assoc-ref inputs "source")
+ (((? derivation? source))
+ (derivation->output-path source))
+ ((source)
+ source)
+ (source
+ source))
+ #:search-paths ',(map search-path-specification->sexp
+ search-paths)
+ #:phases ,phases
+ #:system ,system
+ #:tests? ,tests?
+ #:outputs %outputs
+ #:inputs %build-inputs)))
+
+ (define guile-for-build
+ (match guile
+ ((? package?)
+ (package-derivation store guile system #:graft? #f))
+ (#f ; the default
+ (let* ((distro (resolve-interface '(gnu packages commencement)))
+ (guile (module-ref distro 'guile-final)))
+ (package-derivation store guile system #:graft? #f)))))
+
+ (build-expression->derivation store name builder
+ #:system system
+ #:inputs inputs
+ #:modules imported-modules
+ #:outputs outputs
+ #:guile-for-build guile-for-build))
+
+(define rakudo-build-system
+ (build-system
+ (name 'rakudo)
+ (description "The standard Rakudo build system")
+ (lower lower)))
+
+;;; rakudo.scm ends here