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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.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/>.
(define-module (guix build python-build-system)
#:use-module ((guix build gnu-build-system)
#:renamer (symbol-prefix-proc 'gnu:))
#:use-module (guix build utils)
#:use-module (ice-9 match)
#:use-module (ice-9 ftw)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (%standard-phases
python-build))
;; Commentary:
;;
;; Builder-side code of the standard Python package build procedure.
;;
;; Code:
(define* (install #:key outputs (configure-flags '())
#:allow-other-keys)
"Install a given Python package."
(let ((out (assoc-ref outputs "out")))
(if (file-exists? "setup.py")
(let ((args `("setup.py" "install" ,(string-append "--prefix=" out)
,@configure-flags)))
(format #t "running 'python' with arguments ~s~%" args)
(zero? (apply system* "python" args)))
(error "no setup.py found"))))
(define* (wrap #:key outputs python-version #:allow-other-keys)
(define (list-of-files dir)
(map (cut string-append dir "/" <>)
(or (scandir dir (lambda (f)
(let ((s (stat (string-append dir "/" f))))
(eq? 'regular (stat:type s)))))
'())))
(define bindirs
(append-map (match-lambda
((_ . dir)
(list (string-append dir "/bin")
(string-append dir "/sbin"))))
outputs))
(let* ((out (assoc-ref outputs "out"))
(var `("PYTHONPATH" prefix
,(cons (string-append out "/lib/python"
python-version "/site-packages")
(search-path-as-string->list
(or (getenv "PYTHONPATH") ""))))))
(for-each (lambda (dir)
(let ((files (list-of-files dir)))
(for-each (cut wrap-program <> var)
files)))
bindirs)))
(define %standard-phases
;; 'configure' and 'build' phases are not needed. Everything is done during
;; 'install'.
(alist-cons-after
'install 'wrap
wrap
(alist-replace 'install install
(alist-delete 'configure
(alist-delete 'build
gnu:%standard-phases)))))
(define* (python-build #:key inputs (phases %standard-phases)
#:allow-other-keys #:rest args)
"Build the given Python package, applying all of PHASES in order."
(apply gnu:gnu-build #:inputs inputs #:phases phases args))
;;; python-build-system.scm ends here
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