139 lines
5.3 KiB
Scheme
139 lines
5.3 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013, 2015 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
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;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix build python-build-system)
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#:use-module ((guix build gnu-build-system) #:prefix gnu:)
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#:use-module (guix build utils)
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#:use-module (ice-9 match)
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#:use-module (ice-9 ftw)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:export (%standard-phases
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python-build))
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;; Commentary:
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;;
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;; Builder-side code of the standard Python package build procedure.
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;;
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;; Code:
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(define (call-setuppy command params)
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(if (file-exists? "setup.py")
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(begin
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(format #t "running \"python setup.py\" with command ~s and parameters ~s~%"
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command params)
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(zero? (apply system* "python" "setup.py" command params)))
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(error "no setup.py found")))
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(define* (build #:rest empty)
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"Build a given Python package."
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(call-setuppy "build" '()))
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(define* (check #:key tests? test-target #:allow-other-keys)
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"Run the test suite of a given Python package."
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(if tests?
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(call-setuppy test-target '())
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#t))
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(define (get-python-version python)
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(string-take (string-take-right python 5) 3))
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(define* (install #:key outputs inputs (configure-flags '())
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#:allow-other-keys)
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"Install a given Python package."
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(let* ((out (assoc-ref outputs "out"))
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(params (append (list (string-append "--prefix=" out))
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configure-flags))
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(python-version (get-python-version (assoc-ref inputs "python")))
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(old-path (getenv "PYTHONPATH"))
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(add-path (string-append out "/lib/python" python-version
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"/site-packages/")))
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;; create the module installation directory and add it to PYTHONPATH
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;; to make setuptools happy
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(mkdir-p add-path)
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(setenv "PYTHONPATH"
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(string-append (if old-path
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(string-append old-path ":")
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"")
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add-path))
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(call-setuppy "install" params)))
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(define* (wrap #:key inputs outputs #:allow-other-keys)
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(define (list-of-files dir)
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(map (cut string-append dir "/" <>)
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(or (scandir dir (lambda (f)
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(let ((s (stat (string-append dir "/" f))))
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(eq? 'regular (stat:type s)))))
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'())))
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(define bindirs
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(append-map (match-lambda
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((_ . dir)
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(list (string-append dir "/bin")
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(string-append dir "/sbin"))))
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outputs))
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(let* ((out (assoc-ref outputs "out"))
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(python (assoc-ref inputs "python"))
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(var `("PYTHONPATH" prefix
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,(cons (string-append out "/lib/python"
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(get-python-version python)
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"/site-packages")
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(search-path-as-string->list
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(or (getenv "PYTHONPATH") ""))))))
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(for-each (lambda (dir)
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(let ((files (list-of-files dir)))
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(for-each (cut wrap-program <> var)
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files)))
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bindirs)))
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(define* (rename-pth-file #:key name inputs outputs #:allow-other-keys)
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"Rename easy-install.pth to NAME.pth to avoid conflicts between packages
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installed with setuptools."
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(let* ((out (assoc-ref outputs "out"))
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(python (assoc-ref inputs "python"))
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(site-packages (string-append out "/lib/python"
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(get-python-version python)
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"/site-packages"))
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(easy-install-pth (string-append site-packages "/easy-install.pth"))
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(new-pth (string-append site-packages "/" name ".pth")))
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(when (file-exists? easy-install-pth)
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(rename-file easy-install-pth new-pth))
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#t))
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(define %standard-phases
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;; 'configure' and 'build' phases are not needed. Everything is done during
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;; 'install'.
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(modify-phases gnu:%standard-phases
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(delete configure)
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(replace install install)
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(replace check check)
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(replace build build)
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(add-after install wrap wrap)
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(add-before strip rename-pth-file rename-pth-file)))
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(define* (python-build #:key inputs (phases %standard-phases)
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#:allow-other-keys #:rest args)
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"Build the given Python package, applying all of PHASES in order."
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(apply gnu:gnu-build #:inputs inputs #:phases phases args))
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;;; python-build-system.scm ends here
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